From: Michael Wallner Date: Tue, 24 Nov 2020 16:08:49 +0000 (+0100) Subject: memaslap: mv src/bin/contrib => contrib/bin X-Git-Tag: 1.1.0-beta1~88 X-Git-Url: https://git.m6w6.name/?a=commitdiff_plain;h=fd0f1940d4b11f582fc237ff5ccf2c385eaa0e7d;p=m6w6%2Flibmemcached memaslap: mv src/bin/contrib => contrib/bin --- diff --git a/CMake/_Include.cmake b/CMake/_Include.cmake index b4f2dbd1..9dbd3dfa 100644 --- a/CMake/_Include.cmake +++ b/CMake/_Include.cmake @@ -25,7 +25,6 @@ include(CheckDependency) include(CheckHeader) include(CheckCompiles) include(CheckType) -include(CheckAtomics) include(TestBigEndian) include(CheckByteswap) @@ -34,16 +33,6 @@ include(CheckByteswap) ## debug check_debug() -## memaslap -if(ENABLE_MEMASLAP) - check_atomics() - check_dependency(LIBEVENT event event.h) - check_decl(getline stdio.h) - if(HAVE_LIBEVENT AND HAVE_C_STDATOMIC) - set(HAVE_MEMASLAP 1) - endif() -endif() - ## dtrace include(EnableDtrace) if(ENABLE_DTRACE) diff --git a/CMakeLists.txt b/CMakeLists.txt index 19755ffd..cab79f2c 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -37,6 +37,7 @@ if(NOT BUILD_DOCSONLY) ) add_subdirectory(src) + add_subdirectory(contrib) add_subdirectory(include) add_subdirectory(support) add_subdirectory(test) diff --git a/contrib/CMakeLists.txt b/contrib/CMakeLists.txt new file mode 100644 index 00000000..ad1ab41a --- /dev/null +++ b/contrib/CMakeLists.txt @@ -0,0 +1 @@ +add_subdirectory(bin) diff --git a/contrib/bin/CMakeLists.txt b/contrib/bin/CMakeLists.txt new file mode 100644 index 00000000..0cc3ab2a --- /dev/null +++ b/contrib/bin/CMakeLists.txt @@ -0,0 +1 @@ +add_subdirectory(memaslap) diff --git a/contrib/bin/memaslap/CMakeLists.txt b/contrib/bin/memaslap/CMakeLists.txt new file mode 100644 index 00000000..648b7687 --- /dev/null +++ b/contrib/bin/memaslap/CMakeLists.txt @@ -0,0 +1,32 @@ +if(ENABLE_MEMASLAP) + include(CheckAtomics) + check_atomics() + check_dependency(LIBEVENT event event.h) + check_decl(getline stdio.h) + + if(HAVE_LIBEVENT AND HAVE_ATOMICS) + add_executable(memaslap + ms_main.c + ms_conn.c + ms_setting.c + ms_sigsegv.c + ms_stats.c + ms_task.c + ms_thread.c) + target_include_directories(memaslap PRIVATE + ${CMAKE_SOURCE_DIR}/include + ${CMAKE_BINARY_DIR}/include + ${CMAKE_SOURCE_DIR}/src + ${CMAKE_BINARY_DIR}/src + ${CMAKE_BINARY_DIR}) + target_link_libraries(memaslap PUBLIC libmemcached Threads::Threads ${LIBEVENT} m) + set_property(TARGET memaslap PROPERTY C_STANDARD 11) + if(CMAKE_INSTALL_RPATH) + set_target_properties(${CLIENT} PROPERTIES + INSTALL_RPATH ${CMAKE_INSTALL_RPATH}/../${CMAKE_INSTALL_LIBDIR}) + endif() + install(TARGETS memaslap + RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}) + endif() + +endif() diff --git a/contrib/bin/memaslap/ms_atomic.h b/contrib/bin/memaslap/ms_atomic.h new file mode 100644 index 00000000..f50c629b --- /dev/null +++ b/contrib/bin/memaslap/ms_atomic.h @@ -0,0 +1,64 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#ifndef CLIENTS_MS_ATOMIC_H +#define CLIENTS_MS_ATOMIC_H + +#include "mem_config.h" + +#if defined(__SUNPRO_C) || defined(HAVE_ATOMIC_ADD_NV) +# define ATOMIC volatile +# define _KERNEL +# include +# if SIZEOF_SIZE_T == 8 +# define atomic_add_size(X, Y) atomic_add_64((X), (Y)) +# else +# define atomic_add_size(X, Y) atomic_add_32((X), (Y)) +# endif +# undef _KERNEL + +#elif HAVE_C_STDATOMIC +# define ATOMIC _Atomic +# include +# define atomic_dec_32(X) atomic_fetch_sub(X,1) +# define atomic_add_32 atomic_fetch_add +# define atomic_add_32_nv(X,Y) (atomic_fetch_add(X,Y)+(Y)) +# define atomic_add_size atomic_fetch_add + +#elif HAVE_BUILTIN_ATOMIC +# define ATOMIC +# define atomic_dec_32(X) BUILTIN_ATOMIC_PREFIX ## _atomic_fetch_sub(X,1) +# define atomic_add_32 BUILTIN_ATOMIC_PREFIX ## _atomic_fetch_add +# define atomic_add_32_nv BUILTIN_ATOMIC_PREFIX ## _atomic_add_fetch(X,Y) +# define atomic_add_size BUILTIN_ATOMIC_PREFIX ## _atomic_fetch_add + +#elif HAVE_BUILTIN_SYNC +# define ATOMIC +# define atomic_dec_32(X) __sync_fetch_and_sub((X), 1) +# define atomic_add_32 __sync_fetch_and_add +# define atomic_add_32_nv __sync_add_and_fetch +# define atomic_add_size __sync_fetch_and_add + +#else +# warning "Atomic operators not found so memslap will not work correctly" +# define ATOMIC +# define atomic_dec_32(X) (--(*(X))) +# define atomic_add_32(X,Y) ((*(X))+=(Y)) +# define atomic_add_32_nv atomic_add_32 +# define atomic_add_size atomic_add_32 + +#endif + +#endif /* CLIENTS_MS_ATOMIC_H */ diff --git a/contrib/bin/memaslap/ms_conn.c b/contrib/bin/memaslap/ms_conn.c new file mode 100644 index 00000000..f4375ae8 --- /dev/null +++ b/contrib/bin/memaslap/ms_conn.c @@ -0,0 +1,2864 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#include "mem_config.h" + +#include +#include +#include +#include +#include +#include +#include +#include + +#if defined(HAVE_ARPA_INET_H) +# include +#endif + +#if defined(HAVE_SYS_TIME_H) +# include +#endif + +#if defined(HAVE_TIME_H) +# include +#endif + +#include "ms_setting.h" +#include "ms_thread.h" +#include "ms_atomic.h" + +#ifdef linux +/* /usr/include/netinet/in.h defines macros from ntohs() to _bswap_nn to + * optimize the conversion functions, but the prototypes generate warnings + * from gcc. The conversion methods isn't the bottleneck for my app, so + * just remove the warnings by undef'ing the optimization .. + */ +# undef ntohs +# undef ntohl +# undef htons +# undef htonl +#endif + +/* for network write */ +#define TRANSMIT_COMPLETE 0 +#define TRANSMIT_INCOMPLETE 1 +#define TRANSMIT_SOFT_ERROR 2 +#define TRANSMIT_HARD_ERROR 3 + +/* for generating key */ +#define KEY_PREFIX_BASE 0x1010101010101010 /* not include ' ' '\r' '\n' '\0' */ +#define KEY_PREFIX_MASK 0x1010101010101010 + +/* For parse the value length return by server */ +#define KEY_TOKEN 1 +#define VALUELEN_TOKEN 3 + +/* global increasing counter, to ensure the key prefix unique */ +static uint64_t key_prefix_seq = KEY_PREFIX_BASE; + +/* global increasing counter, generating request id for UDP */ +static ATOMIC uint32_t udp_request_id = 0; + +extern pthread_key_t ms_thread_key; + +/* generate upd request id */ +static uint32_t ms_get_udp_request_id(void); + +/* connect initialize */ +static void ms_task_init(ms_conn_t *c); +static int ms_conn_udp_init(ms_conn_t *c, const bool is_udp); +static int ms_conn_sock_init(ms_conn_t *c); +static int ms_conn_event_init(ms_conn_t *c); +static int ms_conn_init(ms_conn_t *c, const int init_state, const int read_buffer_size, + const bool is_udp); +static void ms_warmup_num_init(ms_conn_t *c); +static int ms_item_win_init(ms_conn_t *c); + +/* connection close */ +void ms_conn_free(ms_conn_t *c); +static void ms_conn_close(ms_conn_t *c); + +/* create network connection */ +static int ms_new_socket(struct addrinfo *ai); +static void ms_maximize_sndbuf(const int sfd); +static int ms_network_connect(ms_conn_t *c, char *srv_host_name, const int srv_port, + const bool is_udp, int *ret_sfd); +static int ms_reconn(ms_conn_t *c); + +/* read and parse */ +static int ms_tokenize_command(char *command, token_t *tokens, const int max_tokens); +static int ms_ascii_process_line(ms_conn_t *c, char *command); +static int ms_try_read_line(ms_conn_t *c); +static int ms_sort_udp_packet(ms_conn_t *c, char *buf, int rbytes); +static int ms_udp_read(ms_conn_t *c, char *buf, int len); +static int ms_try_read_network(ms_conn_t *c); +static void ms_verify_value(ms_conn_t *c, ms_mlget_task_item_t *mlget_item, char *value, int vlen); +static void ms_ascii_complete_nread(ms_conn_t *c); +static void ms_bin_complete_nread(ms_conn_t *c); +static void ms_complete_nread(ms_conn_t *c); + +/* send functions */ +static int ms_add_msghdr(ms_conn_t *c); +static int ms_ensure_iov_space(ms_conn_t *c); +static int ms_add_iov(ms_conn_t *c, const void *buf, int len); +static int ms_build_udp_headers(ms_conn_t *c); +static int ms_transmit(ms_conn_t *c); + +/* status adjustment */ +static void ms_conn_shrink(ms_conn_t *c); +static void ms_conn_set_state(ms_conn_t *c, int state); +static bool ms_update_event(ms_conn_t *c, const int new_flags); +static uint32_t ms_get_rep_sock_index(ms_conn_t *c, int cmd); +static uint32_t ms_get_next_sock_index(ms_conn_t *c); +static int ms_update_conn_sock_event(ms_conn_t *c); +static bool ms_need_yield(ms_conn_t *c); +static void ms_update_start_time(ms_conn_t *c); + +/* main loop */ +static void ms_drive_machine(ms_conn_t *c); +void ms_event_handler(const int fd, const short which, void *arg); + +/* ascii protocol */ +static int ms_build_ascii_write_buf_set(ms_conn_t *c, ms_task_item_t *item); +static int ms_build_ascii_write_buf_get(ms_conn_t *c, ms_task_item_t *item); +static int ms_build_ascii_write_buf_mlget(ms_conn_t *c); + +/* binary protocol */ +static int ms_bin_process_response(ms_conn_t *c); +static void ms_add_bin_header(ms_conn_t *c, uint8_t opcode, uint8_t hdr_len, uint16_t key_len, + uint32_t body_len); +static void ms_add_key_to_iov(ms_conn_t *c, ms_task_item_t *item); +static int ms_build_bin_write_buf_set(ms_conn_t *c, ms_task_item_t *item); +static int ms_build_bin_write_buf_get(ms_conn_t *c, ms_task_item_t *item); +static int ms_build_bin_write_buf_mlget(ms_conn_t *c); + +/** + * each key has two parts, prefix and suffix. The suffix is a + * string random get form the character table. The prefix is a + * uint64_t variable. And the prefix must be unique. we use the + * prefix to identify a key. And the prefix can't include + * character ' ' '\r' '\n' '\0'. + * + * @return uint64_t + */ +uint64_t ms_get_key_prefix(void) { + uint64_t key_prefix; + + pthread_mutex_lock(&ms_global.seq_mutex); + key_prefix_seq |= KEY_PREFIX_MASK; + key_prefix = key_prefix_seq; + key_prefix_seq++; + pthread_mutex_unlock(&ms_global.seq_mutex); + + return key_prefix; +} /* ms_get_key_prefix */ + +/** + * get an unique udp request id + * + * @return an unique UDP request id + */ +static uint32_t ms_get_udp_request_id(void) { + return atomic_add_32_nv(&udp_request_id, 1); +} + +/** + * initialize current task structure + * + * @param c, pointer of the concurrency + */ +static void ms_task_init(ms_conn_t *c) { + c->curr_task.cmd = CMD_NULL; + c->curr_task.item = 0; + c->curr_task.verify = false; + c->curr_task.finish_verify = true; + c->curr_task.get_miss = true; + + c->curr_task.get_opt = 0; + c->curr_task.set_opt = 0; + c->curr_task.cycle_undo_get = 0; + c->curr_task.cycle_undo_set = 0; + c->curr_task.verified_get = 0; + c->curr_task.overwrite_set = 0; +} /* ms_task_init */ + +/** + * initialize udp for the connection structure + * + * @param c, pointer of the concurrency + * @param is_udp, whether it's udp + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_conn_udp_init(ms_conn_t *c, const bool is_udp) { + c->hdrbuf = 0; + c->rudpbuf = 0; + c->udppkt = 0; + + c->rudpsize = UDP_DATA_BUFFER_SIZE; + c->hdrsize = 0; + + c->rudpbytes = 0; + c->packets = 0; + c->recvpkt = 0; + c->pktcurr = 0; + c->ordcurr = 0; + + c->udp = is_udp; + + if (c->udp || (!c->udp && ms_setting.facebook_test)) { + c->rudpbuf = (char *) malloc((size_t) c->rudpsize); + c->udppkt = (ms_udppkt_t *) malloc(MAX_UDP_PACKET * sizeof(ms_udppkt_t)); + + if ((c->rudpbuf == NULL) || (c->udppkt == NULL)) { + if (c->rudpbuf) + free(c->rudpbuf); + if (c->udppkt) + free(c->udppkt); + fprintf(stderr, "malloc()\n"); + return -1; + } + memset(c->udppkt, 0, MAX_UDP_PACKET * sizeof(ms_udppkt_t)); + } + + return EXIT_SUCCESS; +} /* ms_conn_udp_init */ + +/** + * initialize the connection structure + * + * @param c, pointer of the concurrency + * @param init_state, (conn_read, conn_write, conn_closing) + * @param read_buffer_size + * @param is_udp, whether it's udp + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_conn_init(ms_conn_t *c, const int init_state, const int read_buffer_size, + const bool is_udp) { + assert(c); + + c->rbuf = c->wbuf = 0; + c->iov = 0; + c->msglist = 0; + + c->rsize = read_buffer_size; + c->wsize = WRITE_BUFFER_SIZE; + c->iovsize = IOV_LIST_INITIAL; + c->msgsize = MSG_LIST_INITIAL; + + /* for replication, each connection need connect all the server */ + if (ms_setting.rep_write_srv > 0) { + c->total_sfds = ms_setting.srv_cnt * ms_setting.sock_per_conn; + } else { + c->total_sfds = ms_setting.sock_per_conn; + } + c->alive_sfds = 0; + + c->rbuf = (char *) malloc((size_t) c->rsize); + c->wbuf = (char *) malloc((size_t) c->wsize); + c->iov = (struct iovec *) malloc(sizeof(struct iovec) * (size_t) c->iovsize); + c->msglist = (struct msghdr *) malloc(sizeof(struct msghdr) * (size_t) c->msgsize); + if (ms_setting.mult_key_num > 1) { + c->mlget_task.mlget_item = (ms_mlget_task_item_t *) malloc(sizeof(ms_mlget_task_item_t) + * (size_t) ms_setting.mult_key_num); + } + c->tcpsfd = (int *) malloc((size_t) c->total_sfds * sizeof(int)); + + if ((c->rbuf == NULL) || (c->wbuf == NULL) || (c->iov == NULL) || (c->msglist == NULL) + || (c->tcpsfd == NULL) + || ((ms_setting.mult_key_num > 1) && (c->mlget_task.mlget_item == NULL))) + { + if (c->rbuf) + free(c->rbuf); + if (c->wbuf) + free(c->wbuf); + if (c->iov) + free(c->iov); + if (c->msglist) + free(c->msglist); + if (c->mlget_task.mlget_item) + free(c->mlget_task.mlget_item); + if (c->tcpsfd) + free(c->tcpsfd); + fprintf(stderr, "malloc()\n"); + return -1; + } + + c->state = init_state; + c->rvbytes = 0; + c->rbytes = 0; + c->rcurr = c->rbuf; + c->wcurr = c->wbuf; + c->iovused = 0; + c->msgcurr = 0; + c->msgused = 0; + c->cur_idx = c->total_sfds; /* default index is a invalid value */ + + c->ctnwrite = false; + c->readval = false; + c->change_sfd = false; + + c->precmd.cmd = c->currcmd.cmd = CMD_NULL; + c->precmd.isfinish = true; /* default the previous command finished */ + c->currcmd.isfinish = false; + c->precmd.retstat = c->currcmd.retstat = MCD_FAILURE; + c->precmd.key_prefix = c->currcmd.key_prefix = 0; + + c->mlget_task.mlget_num = 0; + c->mlget_task.value_index = -1; /* default invalid value */ + + if (ms_setting.binary_prot_) { + c->protocol = binary_prot; + } else { + c->protocol = ascii_prot; + } + + /* initialize udp */ + if (ms_conn_udp_init(c, is_udp)) { + return -1; + } + + /* initialize task */ + ms_task_init(c); + + if (!(ms_setting.facebook_test && is_udp)) { + atomic_add_32(&ms_stats.active_conns, 1); + } + + return EXIT_SUCCESS; +} /* ms_conn_init */ + +/** + * when doing 100% get operation, it could preset some objects + * to warmup the server. this function is used to initialize the + * number of the objects to preset. + * + * @param c, pointer of the concurrency + */ +static void ms_warmup_num_init(ms_conn_t *c) { + /* no set operation, preset all the items in the window */ + if (ms_setting.cmd_distr[CMD_SET].cmd_prop < PROP_ERROR) { + c->warmup_num = c->win_size; + c->remain_warmup_num = c->warmup_num; + } else { + c->warmup_num = 0; + c->remain_warmup_num = c->warmup_num; + } +} /* ms_warmup_num_init */ + +/** + * each connection has an item window, this function initialize + * the window. The window is used to generate task. + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_item_win_init(ms_conn_t *c) { + ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); + int exp_cnt = 0; + + c->win_size = (int) ms_setting.win_size; + c->set_cursor = 0; + c->exec_num = ms_thread->thread_ctx->exec_num_perconn; + c->remain_exec_num = c->exec_num; + + c->item_win = (ms_task_item_t *) malloc(sizeof(ms_task_item_t) * (size_t) c->win_size); + if (c->item_win == NULL) { + fprintf(stderr, "Can't allocate task item array for conn.\n"); + return -1; + } + memset(c->item_win, 0, sizeof(ms_task_item_t) * (size_t) c->win_size); + + for (int i = 0; i < c->win_size; i++) { + c->item_win[i].key_size = (int) ms_setting.distr[i].key_size; + c->item_win[i].key_prefix = ms_get_key_prefix(); + c->item_win[i].key_suffix_offset = ms_setting.distr[i].key_offset; + c->item_win[i].value_size = (int) ms_setting.distr[i].value_size; + c->item_win[i].value_offset = INVALID_OFFSET; /* default in invalid offset */ + c->item_win[i].client_time = 0; + + /* set expire time base on the proportion */ + if (exp_cnt < ms_setting.exp_ver_per * i) { + c->item_win[i].exp_time = FIXED_EXPIRE_TIME; + exp_cnt++; + } else { + c->item_win[i].exp_time = 0; + } + } + + ms_warmup_num_init(c); + + return EXIT_SUCCESS; +} /* ms_item_win_init */ + +/** + * each connection structure can include one or more sock + * handlers. this function create these socks and connect the + * server(s). + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_conn_sock_init(ms_conn_t *c) { + ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); + uint32_t i; + int ret_sfd; + uint32_t srv_idx = 0; + + assert(c); + assert(c->tcpsfd); + + for (i = 0; i < c->total_sfds; i++) { + ret_sfd = 0; + if (ms_setting.rep_write_srv > 0) { + /* for replication, each connection need connect all the server */ + srv_idx = i % ms_setting.srv_cnt; + } else { + /* all the connections in a thread connects the same server */ + srv_idx = ms_thread->thread_ctx->srv_idx; + } + + if (ms_network_connect(c, ms_setting.servers[srv_idx].srv_host_name, + ms_setting.servers[srv_idx].srv_port, ms_setting.udp, &ret_sfd) +) + { + break; + } + + if (i == 0) { + c->sfd = ret_sfd; + } + + if (!ms_setting.udp) { + c->tcpsfd[i] = ret_sfd; + } + + c->alive_sfds++; + } + + /* initialize udp sock handler if necessary */ + if (ms_setting.facebook_test) { + ret_sfd = 0; + if (ms_network_connect(c, ms_setting.servers[srv_idx].srv_host_name, + ms_setting.servers[srv_idx].srv_port, true, &ret_sfd) +) + { + c->udpsfd = 0; + } else { + c->udpsfd = ret_sfd; + } + } + + if ((i != c->total_sfds) || (ms_setting.facebook_test && (c->udpsfd == 0))) { + if (ms_setting.udp) { + close(c->sfd); + } else { + for (uint32_t j = 0; j < i; j++) { + close(c->tcpsfd[j]); + } + } + + if (c->udpsfd) { + close(c->udpsfd); + } + + return -1; + } + + return EXIT_SUCCESS; +} /* ms_conn_sock_init */ + +/** + * each connection is managed by libevent, this function + * initialize the event of the connection structure. + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_conn_event_init(ms_conn_t *c) { + ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); + short event_flags = EV_WRITE | EV_PERSIST; + + event_set(&c->event, c->sfd, event_flags, ms_event_handler, (void *) c); + event_base_set(ms_thread->base, &c->event); + c->ev_flags = event_flags; + + if (event_add(&c->event, NULL) == -1) { + return -1; + } + + return EXIT_SUCCESS; +} /* ms_conn_event_init */ + +/** + * setup a connection, each connection structure of each + * thread must call this function to initialize. + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +int ms_setup_conn(ms_conn_t *c) { + if (ms_item_win_init(c)) { + return -1; + } + + if (ms_conn_init(c, conn_write, DATA_BUFFER_SIZE, ms_setting.udp)) { + return -1; + } + + if (ms_conn_sock_init(c)) { + return -1; + } + + if (ms_conn_event_init(c)) { + return -1; + } + + return EXIT_SUCCESS; +} /* ms_setup_conn */ + +/** + * Frees a connection. + * + * @param c, pointer of the concurrency + */ +void ms_conn_free(ms_conn_t *c) { + ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); + if (c) { + if (c->hdrbuf) + free(c->hdrbuf); + if (c->msglist) + free(c->msglist); + if (c->rbuf) + free(c->rbuf); + if (c->wbuf) + free(c->wbuf); + if (c->iov) + free(c->iov); + if (c->mlget_task.mlget_item) + free(c->mlget_task.mlget_item); + if (c->rudpbuf) + free(c->rudpbuf); + if (c->udppkt) + free(c->udppkt); + if (c->item_win) + free(c->item_win); + if (c->tcpsfd) + free(c->tcpsfd); + + if (--ms_thread->nactive_conn == 0) { + free(ms_thread->conn); + } + } +} /* ms_conn_free */ + +/** + * close a connection + * + * @param c, pointer of the concurrency + */ +static void ms_conn_close(ms_conn_t *c) { + ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); + assert(c); + + /* delete the event, the socket and the connection */ + event_del(&c->event); + + for (uint32_t i = 0; i < c->total_sfds; i++) { + if (c->tcpsfd[i] > 0) { + close(c->tcpsfd[i]); + } + } + c->sfd = 0; + + if (ms_setting.facebook_test) { + close(c->udpsfd); + } + + atomic_dec_32(&ms_stats.active_conns); + + ms_conn_free(c); + + if (ms_setting.run_time == 0) { + pthread_mutex_lock(&ms_global.run_lock.lock); + ms_global.run_lock.count++; + pthread_cond_signal(&ms_global.run_lock.cond); + pthread_mutex_unlock(&ms_global.run_lock.lock); + } + + if (ms_thread->nactive_conn == 0) { + event_base_loopbreak(ms_thread->base); + } +} /* ms_conn_close */ + +/** + * create a new sock + * + * @param ai, server address information + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_new_socket(struct addrinfo *ai) { + int sfd; + + if ((sfd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol)) == -1) { + fprintf(stderr, "socket() error: %s.\n", strerror(errno)); + return -1; + } + + return sfd; +} /* ms_new_socket */ + +/** + * Sets a socket's send buffer size to the maximum allowed by the system. + * + * @param sfd, file descriptor of socket + */ +static void ms_maximize_sndbuf(const int sfd) { + socklen_t intsize = sizeof(int); + unsigned int last_good = 0; + unsigned int min, max, avg; + unsigned int old_size; + + /* Start with the default size. */ + if (getsockopt(sfd, SOL_SOCKET, SO_SNDBUF, &old_size, &intsize)) { + fprintf(stderr, "getsockopt(SO_SNDBUF)\n"); + return; + } + + /* Binary-search for the real maximum. */ + min = old_size; + max = MAX_SENDBUF_SIZE; + + while (min <= max) { + avg = ((unsigned int) (min + max)) / 2; + if (setsockopt(sfd, SOL_SOCKET, SO_SNDBUF, (void *) &avg, intsize) == 0) { + last_good = avg; + min = avg + 1; + } else { + max = avg - 1; + } + } + (void) last_good; +} /* ms_maximize_sndbuf */ + +/** + * socket connects the server + * + * @param c, pointer of the concurrency + * @param srv_host_name, the host name of the server + * @param srv_port, port of server + * @param is_udp, whether it's udp + * @param ret_sfd, the connected socket file descriptor + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_network_connect(ms_conn_t *c, char *srv_host_name, const int srv_port, + const bool is_udp, int *ret_sfd) { + int sfd; + struct linger ling = {0, 0}; + struct addrinfo *ai; + struct addrinfo *next; + struct addrinfo hints; + char port_buf[NI_MAXSERV]; + int error; + int success = 0; + + int flags = 1; + + /* + * the memset call clears nonstandard fields in some impementations + * that otherwise mess things up. + */ + memset(&hints, 0, sizeof(hints)); +#ifdef AI_ADDRCONFIG + hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG; +#else + hints.ai_flags = AI_PASSIVE; +#endif /* AI_ADDRCONFIG */ + if (is_udp) { + hints.ai_protocol = IPPROTO_UDP; + hints.ai_socktype = SOCK_DGRAM; + hints.ai_family = AF_INET; /* This left here because of issues with OSX 10.5 */ + } else { + hints.ai_family = AF_UNSPEC; + hints.ai_protocol = IPPROTO_TCP; + hints.ai_socktype = SOCK_STREAM; + } + + snprintf(port_buf, NI_MAXSERV, "%d", srv_port); + error = getaddrinfo(srv_host_name, port_buf, &hints, &ai); + if (error) { + if (error != EAI_SYSTEM) + fprintf(stderr, "getaddrinfo(): %s.\n", gai_strerror(error)); + else + perror("getaddrinfo()"); + + return -1; + } + + for (next = ai; next; next = next->ai_next) { + if ((sfd = ms_new_socket(next)) == -1) { + freeaddrinfo(ai); + return -1; + } + + setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, (void *) &flags, sizeof(flags)); + if (is_udp) { + ms_maximize_sndbuf(sfd); + } else { + setsockopt(sfd, SOL_SOCKET, SO_KEEPALIVE, (void *) &flags, sizeof(flags)); + setsockopt(sfd, SOL_SOCKET, SO_LINGER, (void *) &ling, sizeof(ling)); + setsockopt(sfd, IPPROTO_TCP, TCP_NODELAY, (void *) &flags, sizeof(flags)); + } + + if (is_udp) { + c->srv_recv_addr_size = sizeof(struct sockaddr); + memcpy(&c->srv_recv_addr, next->ai_addr, c->srv_recv_addr_size); + } else { + if (connect(sfd, next->ai_addr, next->ai_addrlen) == -1) { + close(sfd); + freeaddrinfo(ai); + return -1; + } + } + + if (((flags = fcntl(sfd, F_GETFL, 0)) < 0) || (fcntl(sfd, F_SETFL, flags | O_NONBLOCK) < 0)) { + fprintf(stderr, "setting O_NONBLOCK\n"); + close(sfd); + freeaddrinfo(ai); + return -1; + } + + if (ret_sfd) { + *ret_sfd = sfd; + } + + success++; + } + + freeaddrinfo(ai); + + /* Return zero if we detected no errors in starting up connections */ + return success == 0; +} /* ms_network_connect */ + +/** + * reconnect a disconnected sock + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_reconn(ms_conn_t *c) { + ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); + uint32_t srv_idx = 0; + uint32_t srv_conn_cnt = 0; + + if (ms_setting.rep_write_srv > 0) { + srv_idx = c->cur_idx % ms_setting.srv_cnt; + srv_conn_cnt = ms_setting.sock_per_conn * ms_setting.nconns; + } else { + srv_idx = ms_thread->thread_ctx->srv_idx; + srv_conn_cnt = ms_setting.nconns / ms_setting.srv_cnt; + } + + /* close the old socket handler */ + close(c->sfd); + c->tcpsfd[c->cur_idx] = 0; + + if (atomic_add_32_nv(&ms_setting.servers[srv_idx].disconn_cnt, 1) % srv_conn_cnt == 0) { + gettimeofday(&ms_setting.servers[srv_idx].disconn_time, NULL); + fprintf(stderr, "Server %s:%d disconnect\n", ms_setting.servers[srv_idx].srv_host_name, + ms_setting.servers[srv_idx].srv_port); + } + + if (ms_setting.rep_write_srv > 0) { + uint32_t i = 0; + + for (i = 0; i < c->total_sfds; i++) { + if (c->tcpsfd[i]) { + break; + } + } + + /* all socks disconnect */ + if (i == c->total_sfds) { + return -1; + } + } else { + do { + /* reconnect success, break the loop */ + if (ms_network_connect(c, ms_setting.servers[srv_idx].srv_host_name, + ms_setting.servers[srv_idx].srv_port, ms_setting.udp, &c->sfd) + == 0) + { + c->tcpsfd[c->cur_idx] = c->sfd; + if (atomic_add_32_nv(&ms_setting.servers[srv_idx].reconn_cnt, 1) % (uint32_t) srv_conn_cnt + == 0) { + gettimeofday(&ms_setting.servers[srv_idx].reconn_time, NULL); + int reconn_time = (int) (ms_setting.servers[srv_idx].reconn_time.tv_sec + - ms_setting.servers[srv_idx].disconn_time.tv_sec); + fprintf(stderr, "Server %s:%d reconnect after %ds\n", + ms_setting.servers[srv_idx].srv_host_name, ms_setting.servers[srv_idx].srv_port, + reconn_time); + } + break; + } + + if (ms_setting.rep_write_srv == 0 && c->total_sfds > 0) { + /* wait a second and reconnect */ + sleep(1); + } + } while (ms_setting.rep_write_srv == 0 && c->total_sfds > 0); + } + + if ((c->total_sfds > 1) && (c->tcpsfd[c->cur_idx] == 0)) { + c->sfd = 0; + c->alive_sfds--; + } + + return EXIT_SUCCESS; +} /* ms_reconn */ + +/** + * reconnect several disconnected socks in the connection + * structure, the ever-1-second timer of the thread will check + * whether some socks in the connections disconnect. if + * disconnect, reconnect the sock. + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +int ms_reconn_socks(ms_conn_t *c) { + ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); + uint32_t srv_idx = 0; + int ret_sfd = 0; + uint32_t srv_conn_cnt = 0; + struct timeval cur_time; + + assert(c); + + if ((c->total_sfds == 1) || (c->total_sfds == c->alive_sfds)) { + return EXIT_SUCCESS; + } + + for (uint32_t i = 0; i < c->total_sfds; i++) { + if (c->tcpsfd[i] == 0) { + gettimeofday(&cur_time, NULL); + + /** + * For failover test of replication, reconnect the socks after + * it disconnects more than 5 seconds, Otherwise memslap will + * block at connect() function and the work threads can't work + * in this interval. + */ + if (cur_time.tv_sec - ms_setting.servers[srv_idx].disconn_time.tv_sec < 5) { + break; + } + + if (ms_setting.rep_write_srv > 0) { + srv_idx = i % ms_setting.srv_cnt; + srv_conn_cnt = ms_setting.sock_per_conn * ms_setting.nconns; + } else { + srv_idx = ms_thread->thread_ctx->srv_idx; + srv_conn_cnt = ms_setting.nconns / ms_setting.srv_cnt; + } + + if (ms_network_connect(c, ms_setting.servers[srv_idx].srv_host_name, + ms_setting.servers[srv_idx].srv_port, ms_setting.udp, &ret_sfd) + == 0) + { + c->tcpsfd[i] = ret_sfd; + c->alive_sfds++; + + if (atomic_add_32_nv(&ms_setting.servers[srv_idx].reconn_cnt, 1) % (uint32_t) srv_conn_cnt + == 0) { + gettimeofday(&ms_setting.servers[srv_idx].reconn_time, NULL); + int reconn_time = (int) (ms_setting.servers[srv_idx].reconn_time.tv_sec + - ms_setting.servers[srv_idx].disconn_time.tv_sec); + fprintf(stderr, "Server %s:%d reconnect after %ds\n", + ms_setting.servers[srv_idx].srv_host_name, ms_setting.servers[srv_idx].srv_port, + reconn_time); + } + } + } + } + + return EXIT_SUCCESS; +} /* ms_reconn_socks */ + +/** + * Tokenize the command string by replacing whitespace with '\0' and update + * the token array tokens with pointer to start of each token and length. + * Returns total number of tokens. The last valid token is the terminal + * token (value points to the first unprocessed character of the string and + * length zero). + * + * Usage example: + * + * while(ms_tokenize_command(command, ncommand, tokens, max_tokens) > 0) { + * for(int ix = 0; tokens[ix].length; ix++) { + * ... + * } + * ncommand = tokens[ix].value - command; + * command = tokens[ix].value; + * } + * + * @param command, the command string to token + * @param tokens, array to store tokens + * @param max_tokens, maximum tokens number + * + * @return int, the number of tokens + */ +static int ms_tokenize_command(char *command, token_t *tokens, const int max_tokens) { + char *s, *e; + int ntokens = 0; + + assert(command && tokens && max_tokens > 1); + + for (s = e = command; ntokens < max_tokens - 1; ++e) { + if (*e == ' ') { + if (s != e) { + tokens[ntokens].value = s; + tokens[ntokens].length = (size_t)(e - s); + ntokens++; + *e = '\0'; + } + s = e + 1; + } else if (*e == '\0') { + if (s != e) { + tokens[ntokens].value = s; + tokens[ntokens].length = (size_t)(e - s); + ntokens++; + } + + break; /* string end */ + } + } + + return ntokens; +} /* ms_tokenize_command */ + +/** + * parse the response of server. + * + * @param c, pointer of the concurrency + * @param command, the string responded by server + * + * @return int, if the command completed return EXIT_SUCCESS, else return + * -1 + */ +static int ms_ascii_process_line(ms_conn_t *c, char *command) { + int ret = 0; + int64_t value_len; + char *buffer = command; + + assert(c); + + /** + * for command get, we store the returned value into local buffer + * then continue in ms_complete_nread(). + */ + + switch (buffer[0]) { + case 'V': /* VALUE || VERSION */ + if (buffer[1] == 'A') /* VALUE */ { + token_t tokens[MAX_TOKENS]; + ms_tokenize_command(command, tokens, MAX_TOKENS); + errno = 0; + value_len = strtol(tokens[VALUELEN_TOKEN].value, NULL, 10); + if (errno) { + printf("<%d ERROR %s\n", c->sfd, strerror(errno)); + } + memcpy(&c->currcmd.key_prefix, tokens[KEY_TOKEN].value, sizeof(c->currcmd.key_prefix)); + + /* + * We read the \r\n into the string since not doing so is more + * cycles then the waster of memory to do so. + * + * We are null terminating through, which will most likely make + * some people lazy about using the return length. + */ + c->rvbytes = (int) (value_len + 2); + c->readval = true; + ret = -1; + } + + break; + + case 'O': /* OK */ + c->currcmd.retstat = MCD_SUCCESS; + break; + + case 'S': /* STORED STATS SERVER_ERROR */ + if (buffer[2] == 'A') /* STORED STATS */ { /* STATS*/ + c->currcmd.retstat = MCD_STAT; + } else if (buffer[1] == 'E') { + /* SERVER_ERROR */ + printf("<%d %s\n", c->sfd, buffer); + + c->currcmd.retstat = MCD_SERVER_ERROR; + } else if (buffer[1] == 'T') { + /* STORED */ + c->currcmd.retstat = MCD_STORED; + } else { + c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; + } + break; + + case 'D': /* DELETED DATA */ + if (buffer[1] == 'E') { + c->currcmd.retstat = MCD_DELETED; + } else { + c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; + } + + break; + + case 'N': /* NOT_FOUND NOT_STORED*/ + if (buffer[4] == 'F') { + c->currcmd.retstat = MCD_NOTFOUND; + } else if (buffer[4] == 'S') { + printf("<%d %s\n", c->sfd, buffer); + c->currcmd.retstat = MCD_NOTSTORED; + } else { + c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; + } + break; + + case 'E': /* PROTOCOL ERROR or END */ + if (buffer[1] == 'N') { + /* END */ + c->currcmd.retstat = MCD_END; + } else if (buffer[1] == 'R') { + printf("<%d ERROR\n", c->sfd); + c->currcmd.retstat = MCD_PROTOCOL_ERROR; + } else if (buffer[1] == 'X') { + c->currcmd.retstat = MCD_DATA_EXISTS; + printf("<%d %s\n", c->sfd, buffer); + } else { + c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; + } + break; + + case 'C': /* CLIENT ERROR */ + printf("<%d %s\n", c->sfd, buffer); + c->currcmd.retstat = MCD_CLIENT_ERROR; + break; + + default: + c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; + break; + } /* switch */ + + return ret; +} /* ms_ascii_process_line */ + +/** + * after one operation completes, reset the concurrency + * + * @param c, pointer of the concurrency + * @param timeout, whether it's timeout + */ +void ms_reset_conn(ms_conn_t *c, bool timeout) { + assert(c); + + if (c->udp) { + if ((c->packets > 0) && (c->packets < MAX_UDP_PACKET)) { + memset(c->udppkt, 0, sizeof(ms_udppkt_t) * (size_t) c->packets); + } + + c->packets = 0; + c->recvpkt = 0; + c->pktcurr = 0; + c->ordcurr = 0; + c->rudpbytes = 0; + } + c->currcmd.isfinish = true; + c->ctnwrite = false; + c->rbytes = 0; + c->rcurr = c->rbuf; + c->msgcurr = 0; + c->msgused = 0; + c->iovused = 0; + ms_conn_set_state(c, conn_write); + memcpy(&c->precmd, &c->currcmd, sizeof(ms_cmdstat_t)); /* replicate command state */ + + if (timeout) { + ms_drive_machine(c); + } +} /* ms_reset_conn */ + +/** + * if we have a complete line in the buffer, process it. + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_try_read_line(ms_conn_t *c) { + if (c->protocol == binary_prot) { + /* Do we have the complete packet header? */ + if ((uint64_t) c->rbytes < sizeof(c->binary_header)) { + /* need more data! */ + return EXIT_SUCCESS; + } else { +#ifdef NEED_ALIGN + if (((long) (c->rcurr)) % 8) { + /* must realign input buffer */ + memmove(c->rbuf, c->rcurr, c->rbytes); + c->rcurr = c->rbuf; + if (settings.verbose) { + fprintf(stderr, "%d: Realign input buffer.\n", c->sfd); + } + } +#endif + protocol_binary_response_header *rsp; + rsp = (protocol_binary_response_header *) c->rcurr; + + c->binary_header = *rsp; + c->binary_header.response.extlen = rsp->response.extlen; + c->binary_header.response.keylen = ntohs(rsp->response.keylen); + c->binary_header.response.bodylen = ntohl(rsp->response.bodylen); + c->binary_header.response.status = ntohs(rsp->response.status); + + if (c->binary_header.response.magic != PROTOCOL_BINARY_RES) { + fprintf(stderr, "Invalid magic: %x\n", c->binary_header.response.magic); + ms_conn_set_state(c, conn_closing); + return EXIT_SUCCESS; + } + + /* process this complete response */ + if (ms_bin_process_response(c) == 0) { + /* current operation completed */ + ms_reset_conn(c, false); + return -1; + } else { + c->rbytes -= (int32_t) sizeof(c->binary_header); + c->rcurr += sizeof(c->binary_header); + } + } + } else { + char *el, *cont; + + assert(c); + assert(c->rcurr <= (c->rbuf + c->rsize)); + + if (c->rbytes == 0) + return EXIT_SUCCESS; + + el = memchr(c->rcurr, '\n', (size_t) c->rbytes); + if (!el) + return EXIT_SUCCESS; + + cont = el + 1; + if (((el - c->rcurr) > 1) && (*(el - 1) == '\r')) { + el--; + } + *el = '\0'; + + assert(cont <= (c->rcurr + c->rbytes)); + + /* process this complete line */ + if (ms_ascii_process_line(c, c->rcurr) == 0) { + /* current operation completed */ + ms_reset_conn(c, false); + return -1; + } else { + /* current operation didn't complete */ + c->rbytes -= (int32_t)(cont - c->rcurr); + c->rcurr = cont; + } + + assert(c->rcurr <= (c->rbuf + c->rsize)); + } + + return -1; +} /* ms_try_read_line */ + +/** + * because the packet of UDP can't ensure the order, the + * function is used to sort the received udp packet. + * + * @param c, pointer of the concurrency + * @param buf, the buffer to store the ordered packages data + * @param rbytes, the maximum capacity of the buffer + * + * @return int, if success, return the copy bytes, else return + * -1 + */ +static int ms_sort_udp_packet(ms_conn_t *c, char *buf, int rbytes) { + int len = 0; + int wbytes = 0; + uint16_t req_id = 0; + uint16_t seq_num = 0; + uint16_t packets = 0; + unsigned char *header = NULL; + + /* no enough data */ + assert(c); + assert(buf); + assert(c->rudpbytes >= UDP_HEADER_SIZE); + + /* calculate received packets count */ + if (c->rudpbytes % UDP_MAX_PAYLOAD_SIZE >= UDP_HEADER_SIZE) { + /* the last packet has some data */ + c->recvpkt = c->rudpbytes / UDP_MAX_PAYLOAD_SIZE + 1; + } else { + c->recvpkt = c->rudpbytes / UDP_MAX_PAYLOAD_SIZE; + } + + /* get the total packets count if necessary */ + if (c->packets == 0) { + c->packets = HEADER_TO_PACKETS((unsigned char *) c->rudpbuf); + } + + /* build the ordered packet array */ + for (int i = c->pktcurr; i < c->recvpkt; i++) { + header = (unsigned char *) c->rudpbuf + i * UDP_MAX_PAYLOAD_SIZE; + req_id = (uint16_t) HEADER_TO_REQID(header); + assert(req_id == c->request_id % (1 << 16)); + + packets = (uint16_t) HEADER_TO_PACKETS(header); + assert(c->packets == HEADER_TO_PACKETS(header)); + + seq_num = (uint16_t) HEADER_TO_SEQNUM(header); + c->udppkt[seq_num].header = header; + c->udppkt[seq_num].data = (char *) header + UDP_HEADER_SIZE; + + if (i == c->recvpkt - 1) { + /* last received packet */ + if (c->rudpbytes % UDP_MAX_PAYLOAD_SIZE == 0) { + c->udppkt[seq_num].rbytes = UDP_MAX_PAYLOAD_SIZE - UDP_HEADER_SIZE; + c->pktcurr++; + } else { + c->udppkt[seq_num].rbytes = c->rudpbytes % UDP_MAX_PAYLOAD_SIZE - UDP_HEADER_SIZE; + } + } else { + c->udppkt[seq_num].rbytes = UDP_MAX_PAYLOAD_SIZE - UDP_HEADER_SIZE; + c->pktcurr++; + } + } + + for (int i = c->ordcurr; i < c->recvpkt; i++) { + /* there is some data to copy */ + if ((c->udppkt[i].data) && (c->udppkt[i].copybytes < c->udppkt[i].rbytes)) { + header = c->udppkt[i].header; + len = c->udppkt[i].rbytes - c->udppkt[i].copybytes; + if (len > rbytes - wbytes) { + len = rbytes - wbytes; + } + + assert(len <= rbytes - wbytes); + assert(i == HEADER_TO_SEQNUM(header)); + + memcpy(buf + wbytes, c->udppkt[i].data + c->udppkt[i].copybytes, (size_t) len); + wbytes += len; + c->udppkt[i].copybytes += len; + + if ((c->udppkt[i].copybytes == c->udppkt[i].rbytes) + && (c->udppkt[i].rbytes == UDP_MAX_PAYLOAD_SIZE - UDP_HEADER_SIZE)) + { + /* finish copying all the data of this packet, next */ + c->ordcurr++; + } + + /* last received packet, and finish copying all the data */ + if ((c->recvpkt == c->packets) && (i == c->recvpkt - 1) + && (c->udppkt[i].copybytes == c->udppkt[i].rbytes)) + { + break; + } + + /* no space to copy data */ + if (wbytes >= rbytes) { + break; + } + + /* it doesn't finish reading all the data of the packet from network */ + if ((i != c->recvpkt - 1) && (c->udppkt[i].rbytes < UDP_MAX_PAYLOAD_SIZE - UDP_HEADER_SIZE)) { + break; + } + } else { + /* no data to copy */ + break; + } + } + (void) packets; + + return wbytes == 0 ? -1 : wbytes; +} /* ms_sort_udp_packet */ + +/** + * encapsulate upd read like tcp read + * + * @param c, pointer of the concurrency + * @param buf, read buffer + * @param len, length to read + * + * @return int, if success, return the read bytes, else return + * -1 + */ +static int ms_udp_read(ms_conn_t *c, char *buf, int len) { + int res = 0; + int avail = 0; + int rbytes = 0; + int copybytes = 0; + + assert(c->udp); + + while (1) { + if (c->rudpbytes + UDP_MAX_PAYLOAD_SIZE > c->rudpsize) { + char *new_rbuf = realloc(c->rudpbuf, (size_t) c->rudpsize * 2); + if (!new_rbuf) { + fprintf(stderr, "Couldn't realloc input buffer.\n"); + c->rudpbytes = 0; /* ignore what we read */ + return -1; + } + c->rudpbuf = new_rbuf; + c->rudpsize *= 2; + } + + avail = c->rudpsize - c->rudpbytes; + /* UDP each time read a packet, 1400 bytes */ + res = (int) read(c->sfd, c->rudpbuf + c->rudpbytes, (size_t) avail); + + if (res > 0) { + atomic_add_size(&ms_stats.bytes_read, res); + c->rudpbytes += res; + rbytes += res; + if (res == avail) { + continue; + } else { + break; + } + } + + if (res == 0) { + /* "connection" closed */ + return res; + } + + if (res == -1) { + /* no data to read */ + return res; + } + } + + /* copy data to read buffer */ + if (rbytes > 0) { + copybytes = ms_sort_udp_packet(c, buf, len); + } + + if (copybytes == -1) { + atomic_add_size(&ms_stats.pkt_disorder, 1); + } + + return copybytes; +} /* ms_udp_read */ + +/* + * read from network as much as we can, handle buffer overflow and connection + * close. + * before reading, move the remaining incomplete fragment of a command + * (if any) to the beginning of the buffer. + * return EXIT_SUCCESS if there's nothing to read on the first read. + */ + +/** + * read from network as much as we can, handle buffer overflow and connection + * close. before reading, move the remaining incomplete fragment of a command + * (if any) to the beginning of the buffer. + * + * @param c, pointer of the concurrency + * + * @return int, + * return EXIT_SUCCESS if there's nothing to read on the first read. + * return EXIT_FAILURE if get data + * return -1 if error happens + */ +static int ms_try_read_network(ms_conn_t *c) { + int gotdata = 0; + int res; + int64_t avail; + + assert(c); + + if ((c->rcurr != c->rbuf) + && (!c->readval || (c->rvbytes > c->rsize - (c->rcurr - c->rbuf)) + || (c->readval && (c->rcurr - c->rbuf > c->rbytes)))) + { + if (c->rbytes) /* otherwise there's nothing to copy */ + memmove(c->rbuf, c->rcurr, (size_t) c->rbytes); + c->rcurr = c->rbuf; + } + + while (1) { + if (c->rbytes >= c->rsize) { + char *new_rbuf = realloc(c->rbuf, (size_t) c->rsize * 2); + if (!new_rbuf) { + fprintf(stderr, "Couldn't realloc input buffer.\n"); + c->rbytes = 0; /* ignore what we read */ + return -1; + } + c->rcurr = c->rbuf = new_rbuf; + c->rsize *= 2; + } + + avail = c->rsize - c->rbytes - (c->rcurr - c->rbuf); + if (avail == 0) { + break; + } + + if (c->udp) { + res = (int32_t) ms_udp_read(c, c->rcurr + c->rbytes, (int32_t) avail); + } else { + res = (int) read(c->sfd, c->rcurr + c->rbytes, (size_t) avail); + } + + if (res > 0) { + if (!c->udp) { + atomic_add_size(&ms_stats.bytes_read, res); + } + gotdata = 1; + c->rbytes += res; + if (res == avail) { + continue; + } else { + break; + } + } + if (res == 0) { + /* connection closed */ + ms_conn_set_state(c, conn_closing); + return -1; + } + if (res == -1) { + if ((errno == EAGAIN) || (errno == EWOULDBLOCK)) + break; + /* Should close on unhandled errors. */ + ms_conn_set_state(c, conn_closing); + return -1; + } + } + + return gotdata; +} /* ms_try_read_network */ + +/** + * after get the object from server, verify the value if + * necessary. + * + * @param c, pointer of the concurrency + * @param mlget_item, pointer of mulit-get task item structure + * @param value, received value string + * @param vlen, received value string length + */ +static void ms_verify_value(ms_conn_t *c, ms_mlget_task_item_t *mlget_item, char *value, int vlen) { + if (c->curr_task.verify) { + assert(c->curr_task.item->value_offset != INVALID_OFFSET); + char *orignval = &ms_setting.char_block[c->curr_task.item->value_offset]; + char *orignkey = &ms_setting.char_block[c->curr_task.item->key_suffix_offset]; + + /* verify expire time if necessary */ + if (c->curr_task.item->exp_time > 0) { + struct timeval curr_time; + gettimeofday(&curr_time, NULL); + + /* object expired but get it now */ + if (curr_time.tv_sec - c->curr_task.item->client_time + > c->curr_task.item->exp_time + EXPIRE_TIME_ERROR) + { + atomic_add_size(&ms_stats.exp_get, 1); + + if (ms_setting.verbose) { + char set_time[64]; + char cur_time[64]; + strftime(set_time, 64, "%Y-%m-%d %H:%M:%S", localtime(&c->curr_task.item->client_time)); + strftime(cur_time, 64, "%Y-%m-%d %H:%M:%S", localtime(&curr_time.tv_sec)); + fprintf(stderr, + "\n<%d expire time verification failed, " + "object expired but get it now\n" + "\tkey len: %d\n" + "\tkey: %" PRIx64 " %.*s\n" + "\tset time: %s current time: %s " + "diff time: %d expire time: %d\n" + "\texpected data: \n" + "\treceived data len: %d\n" + "\treceived data: %.*s\n", + c->sfd, c->curr_task.item->key_size, c->curr_task.item->key_prefix, + c->curr_task.item->key_size - (int) KEY_PREFIX_SIZE, orignkey, set_time, cur_time, + (int) (curr_time.tv_sec - c->curr_task.item->client_time), + c->curr_task.item->exp_time, vlen, vlen, value); + fflush(stderr); + } + } + } else { + if ((c->curr_task.item->value_size != vlen) || (memcmp(orignval, value, (size_t) vlen))) + { + atomic_add_size(&ms_stats.vef_failed, 1); + + if (ms_setting.verbose) { + fprintf(stderr, + "\n<%d data verification failed\n" + "\tkey len: %d\n" + "\tkey: %" PRIx64 " %.*s\n" + "\texpected data len: %d\n" + "\texpected data: %.*s\n" + "\treceived data len: %d\n" + "\treceived data: %.*s\n", + c->sfd, c->curr_task.item->key_size, c->curr_task.item->key_prefix, + c->curr_task.item->key_size - (int) KEY_PREFIX_SIZE, orignkey, + c->curr_task.item->value_size, c->curr_task.item->value_size, orignval, vlen, + vlen, value); + fflush(stderr); + } + } + } + + c->curr_task.finish_verify = true; + + if (mlget_item) { + mlget_item->finish_verify = true; + } + } +} /* ms_verify_value */ + +/** + * For ASCII protocol, after store the data into the local + * buffer, run this function to handle the data. + * + * @param c, pointer of the concurrency + */ +static void ms_ascii_complete_nread(ms_conn_t *c) { + assert(c); + assert(c->rbytes >= c->rvbytes); + assert(c->protocol == ascii_prot); + if (c->rvbytes > 2) { + assert(c->rcurr[c->rvbytes - 1] == '\n' && c->rcurr[c->rvbytes - 2] == '\r'); + } + + /* multi-get */ + ms_mlget_task_item_t *mlget_item = NULL; + if (((ms_setting.mult_key_num > 1) && (c->mlget_task.mlget_num >= ms_setting.mult_key_num)) + || ((c->remain_exec_num == 0) && (c->mlget_task.mlget_num > 0))) + { + c->mlget_task.value_index++; + mlget_item = &c->mlget_task.mlget_item[c->mlget_task.value_index]; + + if (mlget_item->item->key_prefix == c->currcmd.key_prefix) { + c->curr_task.item = mlget_item->item; + c->curr_task.verify = mlget_item->verify; + c->curr_task.finish_verify = mlget_item->finish_verify; + mlget_item->get_miss = false; + } else { + /* Try to find the task item in multi-get task array */ + for (int i = 0; i < c->mlget_task.mlget_num; i++) { + mlget_item = &c->mlget_task.mlget_item[i]; + if (mlget_item->item->key_prefix == c->currcmd.key_prefix) { + c->curr_task.item = mlget_item->item; + c->curr_task.verify = mlget_item->verify; + c->curr_task.finish_verify = mlget_item->finish_verify; + mlget_item->get_miss = false; + + break; + } + } + } + } + + ms_verify_value(c, mlget_item, c->rcurr, c->rvbytes - 2); + + c->curr_task.get_miss = false; + c->rbytes -= c->rvbytes; + c->rcurr = c->rcurr + c->rvbytes; + assert(c->rcurr <= (c->rbuf + c->rsize)); + c->readval = false; + c->rvbytes = 0; +} /* ms_ascii_complete_nread */ + +/** + * For binary protocol, after store the data into the local + * buffer, run this function to handle the data. + * + * @param c, pointer of the concurrency + */ +static void ms_bin_complete_nread(ms_conn_t *c) { + assert(c); + assert(c->rbytes >= c->rvbytes); + assert(c->protocol == binary_prot); + + int extlen = c->binary_header.response.extlen; + int keylen = c->binary_header.response.keylen; + uint8_t opcode = c->binary_header.response.opcode; + + /* not get command or not include value, just return */ + if (((opcode != PROTOCOL_BINARY_CMD_GET) && (opcode != PROTOCOL_BINARY_CMD_GETQ)) + || (c->rvbytes <= extlen + keylen)) + { + /* get miss */ + if (c->binary_header.response.opcode == PROTOCOL_BINARY_CMD_GET) { + c->currcmd.retstat = MCD_END; + c->curr_task.get_miss = true; + } + + c->readval = false; + c->rvbytes = 0; + ms_reset_conn(c, false); + return; + } + + /* multi-get */ + ms_mlget_task_item_t *mlget_item = NULL; + if (((ms_setting.mult_key_num > 1) && (c->mlget_task.mlget_num >= ms_setting.mult_key_num)) + || ((c->remain_exec_num == 0) && (c->mlget_task.mlget_num > 0))) + { + c->mlget_task.value_index++; + mlget_item = &c->mlget_task.mlget_item[c->mlget_task.value_index]; + + c->curr_task.item = mlget_item->item; + c->curr_task.verify = mlget_item->verify; + c->curr_task.finish_verify = mlget_item->finish_verify; + mlget_item->get_miss = false; + } + + ms_verify_value(c, mlget_item, c->rcurr + extlen + keylen, c->rvbytes - extlen - keylen); + + c->currcmd.retstat = MCD_END; + c->curr_task.get_miss = false; + c->rbytes -= c->rvbytes; + c->rcurr = c->rcurr + c->rvbytes; + assert(c->rcurr <= (c->rbuf + c->rsize)); + c->readval = false; + c->rvbytes = 0; + + if (ms_setting.mult_key_num > 1) { + /* multi-get have check all the item */ + if (c->mlget_task.value_index == c->mlget_task.mlget_num - 1) { + ms_reset_conn(c, false); + } + } else { + /* single get */ + ms_reset_conn(c, false); + } +} /* ms_bin_complete_nread */ + +/** + * we get here after reading the value of get commands. + * + * @param c, pointer of the concurrency + */ +static void ms_complete_nread(ms_conn_t *c) { + assert(c); + assert(c->rbytes >= c->rvbytes); + assert(c->protocol == ascii_prot || c->protocol == binary_prot); + + if (c->protocol == binary_prot) { + ms_bin_complete_nread(c); + } else { + ms_ascii_complete_nread(c); + } +} /* ms_complete_nread */ + +/** + * Adds a message header to a connection. + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_add_msghdr(ms_conn_t *c) { + struct msghdr *msg; + + assert(c); + + if (c->msgsize == c->msgused) { + msg = realloc(c->msglist, (size_t) c->msgsize * 2 * sizeof(struct msghdr)); + if (!msg) + return -1; + + c->msglist = msg; + c->msgsize *= 2; + } + + msg = c->msglist + c->msgused; + + /** + * this wipes msg_iovlen, msg_control, msg_controllen, and + * msg_flags, the last 3 of which aren't defined on solaris: + */ + memset(msg, 0, sizeof(struct msghdr)); + + msg->msg_iov = &c->iov[c->iovused]; + + if (c->udp && (c->srv_recv_addr_size > 0)) { + msg->msg_name = &c->srv_recv_addr; + msg->msg_namelen = c->srv_recv_addr_size; + } + + c->msgbytes = 0; + c->msgused++; + + if (c->udp) { + /* Leave room for the UDP header, which we'll fill in later. */ + return ms_add_iov(c, NULL, UDP_HEADER_SIZE); + } + + return EXIT_SUCCESS; +} /* ms_add_msghdr */ + +/** + * Ensures that there is room for another structure iovec in a connection's + * iov list. + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_ensure_iov_space(ms_conn_t *c) { + assert(c); + + if (c->iovused >= c->iovsize) { + int i, iovnum; + struct iovec *new_iov = + (struct iovec *) realloc(c->iov, ((size_t) c->iovsize * 2) * sizeof(struct iovec)); + if (!new_iov) + return -1; + + c->iov = new_iov; + c->iovsize *= 2; + + /* Point all the msghdr structures at the new list. */ + for (i = 0, iovnum = 0; i < c->msgused; i++) { + c->msglist[i].msg_iov = &c->iov[iovnum]; + iovnum += (int) c->msglist[i].msg_iovlen; + } + } + + return EXIT_SUCCESS; +} /* ms_ensure_iov_space */ + +/** + * Adds data to the list of pending data that will be written out to a + * connection. + * + * @param c, pointer of the concurrency + * @param buf, the buffer includes data to send + * @param len, the data length in the buffer + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_add_iov(ms_conn_t *c, const void *buf, int len) { + struct msghdr *m; + int leftover; + bool limit_to_mtu; + + assert(c); + + do { + m = &c->msglist[c->msgused - 1]; + + /* + * Limit UDP packets, to UDP_MAX_PAYLOAD_SIZE bytes. + */ + limit_to_mtu = c->udp; + +#ifdef IOV_MAX + /* We may need to start a new msghdr if this one is full. */ + if ((m->msg_iovlen == IOV_MAX) || (limit_to_mtu && (c->msgbytes >= UDP_MAX_SEND_PAYLOAD_SIZE))) + { + ms_add_msghdr(c); + m = &c->msglist[c->msgused - 1]; + } +#endif + + if (ms_ensure_iov_space(c)) + return -1; + + /* If the fragment is too big to fit in the datagram, split it up */ + if (limit_to_mtu && (len + c->msgbytes > UDP_MAX_SEND_PAYLOAD_SIZE)) { + leftover = len + c->msgbytes - UDP_MAX_SEND_PAYLOAD_SIZE; + len -= leftover; + } else { + leftover = 0; + } + + m = &c->msglist[c->msgused - 1]; + m->msg_iov[m->msg_iovlen].iov_base = (void *) buf; + m->msg_iov[m->msg_iovlen].iov_len = (size_t) len; + + c->msgbytes += len; + c->iovused++; + m->msg_iovlen++; + + buf = ((char *) buf) + len; + len = leftover; + } while (leftover > 0); + + return EXIT_SUCCESS; +} /* ms_add_iov */ + +/** + * Constructs a set of UDP headers and attaches them to the outgoing messages. + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_build_udp_headers(ms_conn_t *c) { + int i; + unsigned char *hdr; + + assert(c); + + c->request_id = ms_get_udp_request_id(); + + if (c->msgused > c->hdrsize) { + void *new_hdrbuf; + if (c->hdrbuf) + new_hdrbuf = realloc(c->hdrbuf, (size_t) c->msgused * 2 * UDP_HEADER_SIZE); + else + new_hdrbuf = malloc((size_t) c->msgused * 2 * UDP_HEADER_SIZE); + if (!new_hdrbuf) + return -1; + + c->hdrbuf = (unsigned char *) new_hdrbuf; + c->hdrsize = c->msgused * 2; + } + + /* If this is a multi-packet request, drop it. */ + if (c->udp && (c->msgused > 1)) { + fprintf(stderr, "multi-packet request for UDP not supported.\n"); + return -1; + } + + hdr = c->hdrbuf; + for (i = 0; i < c->msgused; i++) { + c->msglist[i].msg_iov[0].iov_base = (void *) hdr; + c->msglist[i].msg_iov[0].iov_len = UDP_HEADER_SIZE; + *hdr++ = (unsigned char) (c->request_id / 256); + *hdr++ = (unsigned char) (c->request_id % 256); + *hdr++ = (unsigned char) (i / 256); + *hdr++ = (unsigned char) (i % 256); + *hdr++ = (unsigned char) (c->msgused / 256); + *hdr++ = (unsigned char) (c->msgused % 256); + *hdr++ = (unsigned char) 1; /* support facebook memcached */ + *hdr++ = (unsigned char) 0; + assert(hdr == ((unsigned char *) c->msglist[i].msg_iov[0].iov_base + UDP_HEADER_SIZE)); + } + + return EXIT_SUCCESS; +} /* ms_build_udp_headers */ + +/** + * Transmit the next chunk of data from our list of msgbuf structures. + * + * @param c, pointer of the concurrency + * + * @return TRANSMIT_COMPLETE All done writing. + * TRANSMIT_INCOMPLETE More data remaining to write. + * TRANSMIT_SOFT_ERROR Can't write any more right now. + * TRANSMIT_HARD_ERROR Can't write (c->state is set to conn_closing) + */ +static int ms_transmit(ms_conn_t *c) { + assert(c); + + if ((c->msgcurr < c->msgused) && (c->msglist[c->msgcurr].msg_iovlen == 0)) { + /* Finished writing the current msg; advance to the next. */ + c->msgcurr++; + } + + if (c->msgcurr < c->msgused) { + ssize_t res; + struct msghdr *m = &c->msglist[c->msgcurr]; + + res = sendmsg(c->sfd, m, 0); + if (res > 0) { + atomic_add_size(&ms_stats.bytes_written, res); + + /* We've written some of the data. Remove the completed + * iovec entries from the list of pending writes. */ + while (m->msg_iovlen > 0 && res >= (ssize_t) m->msg_iov->iov_len) { + res -= (ssize_t) m->msg_iov->iov_len; + m->msg_iovlen--; + m->msg_iov++; + } + + /* Might have written just part of the last iovec entry; + * adjust it so the next write will do the rest. */ + if (res > 0) { + m->msg_iov->iov_base = (void *) ((unsigned char *) m->msg_iov->iov_base + res); + m->msg_iov->iov_len -= (size_t) res; + } + return TRANSMIT_INCOMPLETE; + } + if ((res == -1) && ((errno == EAGAIN) || (errno == EWOULDBLOCK))) { + if (!ms_update_event(c, EV_WRITE | EV_PERSIST)) { + fprintf(stderr, "Couldn't update event.\n"); + ms_conn_set_state(c, conn_closing); + return TRANSMIT_HARD_ERROR; + } + return TRANSMIT_SOFT_ERROR; + } + + /* if res==0 or res==-1 and error is not EAGAIN or EWOULDBLOCK, + * we have a real error, on which we close the connection */ + fprintf(stderr, "Failed to write, and not due to blocking.\n"); + + ms_conn_set_state(c, conn_closing); + return TRANSMIT_HARD_ERROR; + } else { + return TRANSMIT_COMPLETE; + } +} /* ms_transmit */ + +/** + * Shrinks a connection's buffers if they're too big. This prevents + * periodic large "mget" response from server chewing lots of client + * memory. + * + * This should only be called in between requests since it can wipe output + * buffers! + * + * @param c, pointer of the concurrency + */ +static void ms_conn_shrink(ms_conn_t *c) { + assert(c); + + if (c->udp) + return; + + if ((c->rsize > READ_BUFFER_HIGHWAT) && (c->rbytes < DATA_BUFFER_SIZE)) { + char *newbuf; + + if (c->rcurr != c->rbuf) + memmove(c->rbuf, c->rcurr, (size_t) c->rbytes); + + newbuf = (char *) realloc((void *) c->rbuf, DATA_BUFFER_SIZE); + + if (newbuf) { + c->rbuf = newbuf; + c->rsize = DATA_BUFFER_SIZE; + } + c->rcurr = c->rbuf; + } + + if (c->udp && (c->rudpsize > UDP_DATA_BUFFER_HIGHWAT) + && (c->rudpbytes + UDP_MAX_PAYLOAD_SIZE < UDP_DATA_BUFFER_SIZE)) + { + char *new_rbuf = (char *) realloc(c->rudpbuf, (size_t) c->rudpsize * 2); + if (new_rbuf) { + c->rudpbuf = new_rbuf; + c->rudpsize = UDP_DATA_BUFFER_SIZE; + } + /* TODO check error condition? */ + } + + if (c->msgsize > MSG_LIST_HIGHWAT) { + struct msghdr *newbuf = + (struct msghdr *) realloc((void *) c->msglist, MSG_LIST_INITIAL * sizeof(c->msglist[0])); + if (newbuf) { + c->msglist = newbuf; + c->msgsize = MSG_LIST_INITIAL; + } + /* TODO check error condition? */ + } + + if (c->iovsize > IOV_LIST_HIGHWAT) { + struct iovec *newbuf = + (struct iovec *) realloc((void *) c->iov, IOV_LIST_INITIAL * sizeof(c->iov[0])); + if (newbuf) { + c->iov = newbuf; + c->iovsize = IOV_LIST_INITIAL; + } + /* TODO check return value */ + } +} /* ms_conn_shrink */ + +/** + * Sets a connection's current state in the state machine. Any special + * processing that needs to happen on certain state transitions can + * happen here. + * + * @param c, pointer of the concurrency + * @param state, connection state + */ +static void ms_conn_set_state(ms_conn_t *c, int state) { + assert(c); + + if (state != c->state) { + if (state == conn_read) { + ms_conn_shrink(c); + } + c->state = state; + } +} /* ms_conn_set_state */ + +/** + * update the event if socks change state. for example: when + * change the listen scoket read event to sock write event, or + * change socket handler, we could call this function. + * + * @param c, pointer of the concurrency + * @param new_flags, new event flags + * + * @return bool, if success, return true, else return false + */ +static bool ms_update_event(ms_conn_t *c, const int new_flags) { + assert(c); + + struct event_base *base = c->event.ev_base; + if ((c->ev_flags == new_flags) && (ms_setting.rep_write_srv == 0) + && (!ms_setting.facebook_test || (c->total_sfds == 1))) + { + return true; + } + + if (event_del(&c->event) == -1) { + /* try to delete the event again */ + if (event_del(&c->event) == -1) { + return false; + } + } + + event_set(&c->event, c->sfd, (short) new_flags, ms_event_handler, (void *) c); + event_base_set(base, &c->event); + c->ev_flags = (short) new_flags; + + if (event_add(&c->event, NULL) == -1) { + return false; + } + + return true; +} /* ms_update_event */ + +/** + * If user want to get the expected throughput, we could limit + * the performance of memslap. we could give up some work and + * just wait a short time. The function is used to check this + * case. + * + * @param c, pointer of the concurrency + * + * @return bool, if success, return true, else return false + */ +static bool ms_need_yield(ms_conn_t *c) { + ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); + int64_t tps = 0; + int64_t time_diff = 0; + struct timeval curr_time; + ms_task_t *task = &c->curr_task; + + if (ms_setting.expected_tps > 0) { + gettimeofday(&curr_time, NULL); + time_diff = ms_time_diff(&ms_thread->startup_time, &curr_time); + tps = (int64_t)(((task->get_opt + task->set_opt) / (uint64_t) time_diff) * 1000000); + + /* current throughput is greater than expected throughput */ + if (tps > ms_thread->thread_ctx->tps_perconn) { + return true; + } + } + + return false; +} /* ms_need_yield */ + +/** + * used to update the start time of each operation + * + * @param c, pointer of the concurrency + */ +static void ms_update_start_time(ms_conn_t *c) { + ms_task_item_t *item = c->curr_task.item; + + if ((ms_setting.stat_freq > 0) || c->udp || ((c->currcmd.cmd == CMD_SET) && (item->exp_time > 0))) + { + gettimeofday(&c->start_time, NULL); + if ((c->currcmd.cmd == CMD_SET) && (item->exp_time > 0)) { + /* record the current time */ + item->client_time = c->start_time.tv_sec; + } + } +} /* ms_update_start_time */ + +/** + * run the state machine + * + * @param c, pointer of the concurrency + */ +static void ms_drive_machine(ms_conn_t *c) { + bool stop = false; + + assert(c); + + while (!stop) { + switch (c->state) { + case conn_read: + if (c->readval) { + if (c->rbytes >= c->rvbytes) { + ms_complete_nread(c); + break; + } + } else { + if (ms_try_read_line(c)) { + break; + } + } + + if (ms_try_read_network(c)) { + break; + } + + /* doesn't read all the response data, wait event wake up */ + if (!c->currcmd.isfinish) { + if (!ms_update_event(c, EV_READ | EV_PERSIST)) { + fprintf(stderr, "Couldn't update event.\n"); + ms_conn_set_state(c, conn_closing); + break; + } + stop = true; + break; + } + + /* we have no command line and no data to read from network, next write */ + ms_conn_set_state(c, conn_write); + memcpy(&c->precmd, &c->currcmd, sizeof(ms_cmdstat_t)); /* replicate command state */ + + break; + + case conn_write: + if (!c->ctnwrite && ms_need_yield(c)) { + usleep(10); + + if (!ms_update_event(c, EV_WRITE | EV_PERSIST)) { + fprintf(stderr, "Couldn't update event.\n"); + ms_conn_set_state(c, conn_closing); + break; + } + stop = true; + break; + } + + if (!c->ctnwrite && (ms_exec_task(c))) { + ms_conn_set_state(c, conn_closing); + break; + } + + /* record the start time before starting to send data if necessary */ + if (!c->ctnwrite || (c->change_sfd && c->ctnwrite)) { + if (c->change_sfd) { + c->change_sfd = false; + } + ms_update_start_time(c); + } + + /* change sfd if necessary */ + if (c->change_sfd) { + c->ctnwrite = true; + stop = true; + break; + } + + /* execute task until nothing need be written to network */ + if (!c->ctnwrite && (c->msgcurr == c->msgused)) { + if (!ms_update_event(c, EV_WRITE | EV_PERSIST)) { + fprintf(stderr, "Couldn't update event.\n"); + ms_conn_set_state(c, conn_closing); + break; + } + stop = true; + break; + } + + switch (ms_transmit(c)) { + case TRANSMIT_COMPLETE: + /* we have no data to write to network, next wait repose */ + if (!ms_update_event(c, EV_READ | EV_PERSIST)) { + fprintf(stderr, "Couldn't update event.\n"); + ms_conn_set_state(c, conn_closing); + c->ctnwrite = false; + break; + } + ms_conn_set_state(c, conn_read); + c->ctnwrite = false; + stop = true; + break; + + case TRANSMIT_INCOMPLETE: + c->ctnwrite = true; + break; /* Continue in state machine. */ + + case TRANSMIT_HARD_ERROR: + c->ctnwrite = false; + break; + + case TRANSMIT_SOFT_ERROR: + c->ctnwrite = true; + stop = true; + break; + + default: + break; + } /* switch */ + + break; + + case conn_closing: + /* recovery mode, need reconnect if connection close */ + if (ms_setting.reconnect + && (!ms_global.time_out || ((ms_setting.run_time == 0) && (c->remain_exec_num > 0)))) + { + if (ms_reconn(c)) { + ms_conn_close(c); + stop = true; + break; + } + + ms_reset_conn(c, false); + + if (c->total_sfds == 1) { + if (!ms_update_event(c, EV_WRITE | EV_PERSIST)) { + fprintf(stderr, "Couldn't update event.\n"); + ms_conn_set_state(c, conn_closing); + break; + } + } + + break; + } else { + ms_conn_close(c); + stop = true; + break; + } + + default: + assert(0); + } /* switch */ + } +} /* ms_drive_machine */ + +/** + * the event handler of each thread + * + * @param fd, the file descriptor of socket + * @param which, event flag + * @param arg, argument + */ +void ms_event_handler(const int fd, const short which, void *arg) { + ms_conn_t *c = (ms_conn_t *) arg; + + assert(c); + + c->which = which; + + /* sanity */ + if (fd != c->sfd) { + fprintf(stderr, "Catastrophic: event fd: %d doesn't match conn fd: %d\n", fd, c->sfd); + ms_conn_close(c); + exit(1); + } + assert(fd == c->sfd); + + ms_drive_machine(c); + + /* wait for next event */ +} /* ms_event_handler */ + +/** + * get the next socket descriptor index to run for replication + * + * @param c, pointer of the concurrency + * @param cmd, command(get or set ) + * + * @return int, if success, return the index, else return EXIT_SUCCESS + */ +static uint32_t ms_get_rep_sock_index(ms_conn_t *c, int cmd) { + uint32_t sock_index = 0; + uint32_t i = 0; + + if (c->total_sfds == 1) { + return EXIT_SUCCESS; + } + + if (ms_setting.rep_write_srv == 0) { + return sock_index; + } + + do { + if (cmd == CMD_SET) { + for (i = 0; i < ms_setting.rep_write_srv; i++) { + if (c->tcpsfd[i] > 0) { + break; + } + } + + if (i == ms_setting.rep_write_srv) { + /* random get one replication server to read */ + sock_index = (uint32_t) random() % c->total_sfds; + } else { + /* random get one replication writing server to write */ + sock_index = (uint32_t) random() % ms_setting.rep_write_srv; + } + } else if (cmd == CMD_GET) { + /* random get one replication server to read */ + sock_index = (uint32_t) random() % c->total_sfds; + } + } while (c->tcpsfd[sock_index] == 0); + + return sock_index; +} /* ms_get_rep_sock_index */ + +/** + * get the next socket descriptor index to run + * + * @param c, pointer of the concurrency + * + * @return int, return the index + */ +static uint32_t ms_get_next_sock_index(ms_conn_t *c) { + uint32_t sock_index = 0; + + do { + sock_index = (++c->cur_idx == c->total_sfds) ? 0 : c->cur_idx; + } while (c->tcpsfd[sock_index] == 0); + + return sock_index; +} /* ms_get_next_sock_index */ + +/** + * update socket event of the connections + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_update_conn_sock_event(ms_conn_t *c) { + assert(c); + + switch (c->currcmd.cmd) { + case CMD_SET: + if (ms_setting.facebook_test && c->udp) { + c->sfd = c->tcpsfd[0]; + c->udp = false; + c->change_sfd = true; + } + break; + + case CMD_GET: + if (ms_setting.facebook_test && !c->udp) { + c->sfd = c->udpsfd; + c->udp = true; + c->change_sfd = true; + } + break; + + default: + break; + } /* switch */ + + if (!c->udp && (c->total_sfds > 1)) { + if (c->cur_idx != c->total_sfds) { + if (ms_setting.rep_write_srv == 0) { + c->cur_idx = ms_get_next_sock_index(c); + } else { + c->cur_idx = ms_get_rep_sock_index(c, c->currcmd.cmd); + } + } else { + /* must select the first sock of the connection at the beginning */ + c->cur_idx = 0; + } + + c->sfd = c->tcpsfd[c->cur_idx]; + assert(c->sfd); + c->change_sfd = true; + } + + if (c->change_sfd) { + if (!ms_update_event(c, EV_WRITE | EV_PERSIST)) { + fprintf(stderr, "Couldn't update event.\n"); + ms_conn_set_state(c, conn_closing); + return -1; + } + } + + return EXIT_SUCCESS; +} /* ms_update_conn_sock_event */ + +/** + * for ASCII protocol, this function build the set command + * string and send the command. + * + * @param c, pointer of the concurrency + * @param item, pointer of task item which includes the object + * information + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_build_ascii_write_buf_set(ms_conn_t *c, ms_task_item_t *item) { + int value_offset; + int write_len; + char *buffer = c->wbuf; + + write_len = snprintf(buffer, c->wsize, " %u %d %d\r\n", 0, item->exp_time, item->value_size); + + if (write_len > c->wsize || write_len < 0) { + /* ought to be always enough. just fail for simplicity */ + fprintf(stderr, "output command line too long.\n"); + return -1; + } + + if (item->value_offset == INVALID_OFFSET) { + value_offset = item->key_suffix_offset; + } else { + value_offset = item->value_offset; + } + + if ((ms_add_iov(c, "set ", 4)) + || (ms_add_iov(c, (char *) &item->key_prefix, (int) KEY_PREFIX_SIZE)) + || (ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset], + item->key_size - (int) KEY_PREFIX_SIZE) +) + || (ms_add_iov(c, buffer, write_len)) + || (ms_add_iov(c, &ms_setting.char_block[value_offset], item->value_size)) + || (ms_add_iov(c, "\r\n", 2)) || (c->udp && (ms_build_udp_headers(c)))) + { + return -1; + } + + return EXIT_SUCCESS; +} /* ms_build_ascii_write_buf_set */ + +/** + * used to send set command to server + * + * @param c, pointer of the concurrency + * @param item, pointer of task item which includes the object + * information + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +int ms_mcd_set(ms_conn_t *c, ms_task_item_t *item) { + assert(c); + + c->currcmd.cmd = CMD_SET; + c->currcmd.isfinish = false; + c->currcmd.retstat = MCD_FAILURE; + + if (ms_update_conn_sock_event(c)) { + return -1; + } + + c->msgcurr = 0; + c->msgused = 0; + c->iovused = 0; + if (ms_add_msghdr(c)) { + fprintf(stderr, "Out of memory preparing request."); + return -1; + } + + /* binary protocol */ + if (c->protocol == binary_prot) { + if (ms_build_bin_write_buf_set(c, item)) { + return -1; + } + } else { + if (ms_build_ascii_write_buf_set(c, item)) { + return -1; + } + } + + atomic_add_size(&ms_stats.obj_bytes, item->key_size + item->value_size); + atomic_add_size(&ms_stats.cmd_set, 1); + + return EXIT_SUCCESS; +} /* ms_mcd_set */ + +/** + * for ASCII protocol, this function build the get command + * string and send the command. + * + * @param c, pointer of the concurrency + * @param item, pointer of task item which includes the object + * information + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_build_ascii_write_buf_get(ms_conn_t *c, ms_task_item_t *item) { + if ((ms_add_iov(c, "get ", 4)) + || (ms_add_iov(c, (char *) &item->key_prefix, (int) KEY_PREFIX_SIZE)) + || (ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset], + item->key_size - (int) KEY_PREFIX_SIZE) +) + || (ms_add_iov(c, "\r\n", 2)) || (c->udp && (ms_build_udp_headers(c)))) + { + return -1; + } + + return EXIT_SUCCESS; +} /* ms_build_ascii_write_buf_get */ + +/** + * used to send the get command to server + * + * @param c, pointer of the concurrency + * @param item, pointer of task item which includes the object + * information + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +int ms_mcd_get(ms_conn_t *c, ms_task_item_t *item) { + assert(c); + + c->currcmd.cmd = CMD_GET; + c->currcmd.isfinish = false; + c->currcmd.retstat = MCD_FAILURE; + + if (ms_update_conn_sock_event(c)) { + return -1; + } + + c->msgcurr = 0; + c->msgused = 0; + c->iovused = 0; + if (ms_add_msghdr(c)) { + fprintf(stderr, "Out of memory preparing request."); + return -1; + } + + /* binary protocol */ + if (c->protocol == binary_prot) { + if (ms_build_bin_write_buf_get(c, item)) { + return -1; + } + } else { + if (ms_build_ascii_write_buf_get(c, item)) { + return -1; + } + } + + atomic_add_size(&ms_stats.cmd_get, 1); + + return EXIT_SUCCESS; +} /* ms_mcd_get */ + +/** + * for ASCII protocol, this function build the multi-get command + * string and send the command. + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_build_ascii_write_buf_mlget(ms_conn_t *c) { + ms_task_item_t *item; + + if (ms_add_iov(c, "get", 3)) { + return -1; + } + + for (int i = 0; i < c->mlget_task.mlget_num; i++) { + item = c->mlget_task.mlget_item[i].item; + assert(item); + if ((ms_add_iov(c, " ", 1)) + || (ms_add_iov(c, (char *) &item->key_prefix, (int) KEY_PREFIX_SIZE)) + || (ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset], + item->key_size - (int) KEY_PREFIX_SIZE) +)) + { + return -1; + } + } + + if ((ms_add_iov(c, "\r\n", 2)) || (c->udp && (ms_build_udp_headers(c)))) { + return -1; + } + + return EXIT_SUCCESS; +} /* ms_build_ascii_write_buf_mlget */ + +/** + * used to send the multi-get command to server + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +int ms_mcd_mlget(ms_conn_t *c) { + ms_task_item_t *item; + + assert(c); + assert(c->mlget_task.mlget_num >= 1); + + c->currcmd.cmd = CMD_GET; + c->currcmd.isfinish = false; + c->currcmd.retstat = MCD_FAILURE; + + if (ms_update_conn_sock_event(c)) { + return -1; + } + + c->msgcurr = 0; + c->msgused = 0; + c->iovused = 0; + if (ms_add_msghdr(c)) { + fprintf(stderr, "Out of memory preparing request."); + return -1; + } + + /* binary protocol */ + if (c->protocol == binary_prot) { + if (ms_build_bin_write_buf_mlget(c)) { + return -1; + } + } else { + if (ms_build_ascii_write_buf_mlget(c)) { + return -1; + } + } + + /* decrease operation time of each item */ + for (int i = 0; i < c->mlget_task.mlget_num; i++) { + item = c->mlget_task.mlget_item[i].item; + atomic_add_size(&ms_stats.cmd_get, 1); + } + + (void) item; + + return EXIT_SUCCESS; +} /* ms_mcd_mlget */ + +/** + * binary protocol support + */ + +/** + * for binary protocol, parse the response of server + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_bin_process_response(ms_conn_t *c) { + const char *errstr = NULL; + + assert(c); + + uint32_t bodylen = c->binary_header.response.bodylen; + uint8_t opcode = c->binary_header.response.opcode; + uint16_t status = c->binary_header.response.status; + + if (bodylen > 0) { + c->rvbytes = (int32_t) bodylen; + c->readval = true; + return EXIT_FAILURE; + } else { + switch (status) { + case PROTOCOL_BINARY_RESPONSE_SUCCESS: + if (opcode == PROTOCOL_BINARY_CMD_SET) { + c->currcmd.retstat = MCD_STORED; + } else if (opcode == PROTOCOL_BINARY_CMD_DELETE) { + c->currcmd.retstat = MCD_DELETED; + } else if (opcode == PROTOCOL_BINARY_CMD_GET) { + c->currcmd.retstat = MCD_END; + } + break; + + case PROTOCOL_BINARY_RESPONSE_ENOMEM: + errstr = "Out of memory"; + c->currcmd.retstat = MCD_SERVER_ERROR; + break; + + case PROTOCOL_BINARY_RESPONSE_UNKNOWN_COMMAND: + errstr = "Unknown command"; + c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; + break; + + case PROTOCOL_BINARY_RESPONSE_KEY_ENOENT: + errstr = "Not found"; + c->currcmd.retstat = MCD_NOTFOUND; + break; + + case PROTOCOL_BINARY_RESPONSE_EINVAL: + errstr = "Invalid arguments"; + c->currcmd.retstat = MCD_PROTOCOL_ERROR; + break; + + case PROTOCOL_BINARY_RESPONSE_KEY_EEXISTS: + errstr = "Data exists for key."; + break; + + case PROTOCOL_BINARY_RESPONSE_E2BIG: + errstr = "Too large."; + c->currcmd.retstat = MCD_SERVER_ERROR; + break; + + case PROTOCOL_BINARY_RESPONSE_NOT_STORED: + errstr = "Not stored."; + c->currcmd.retstat = MCD_NOTSTORED; + break; + + default: + errstr = "Unknown error"; + c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; + break; + } /* switch */ + + if (errstr) { + fprintf(stderr, "%s\n", errstr); + } + } + + return EXIT_SUCCESS; +} /* ms_bin_process_response */ + +/* build binary header and add the header to the buffer to send */ + +/** + * build binary header and add the header to the buffer to send + * + * @param c, pointer of the concurrency + * @param opcode, operation code + * @param hdr_len, length of header + * @param key_len, length of key + * @param body_len. length of body + */ +static void ms_add_bin_header(ms_conn_t *c, uint8_t opcode, uint8_t hdr_len, uint16_t key_len, + uint32_t body_len) { + protocol_binary_request_header *header; + + assert(c); + + header = (protocol_binary_request_header *) c->wcurr; + + header->request.magic = (uint8_t) PROTOCOL_BINARY_REQ; + header->request.opcode = (uint8_t) opcode; + header->request.keylen = htons(key_len); + + header->request.extlen = (uint8_t) hdr_len; + header->request.datatype = (uint8_t) PROTOCOL_BINARY_RAW_BYTES; + header->request.vbucket = 0; + + header->request.bodylen = htonl(body_len); + header->request.opaque = 0; + header->request.cas = 0; + + ms_add_iov(c, c->wcurr, sizeof(header->request)); +} /* ms_add_bin_header */ + +/** + * add the key to the socket write buffer array + * + * @param c, pointer of the concurrency + * @param item, pointer of task item which includes the object + * information + */ +static void ms_add_key_to_iov(ms_conn_t *c, ms_task_item_t *item) { + ms_add_iov(c, (char *) &item->key_prefix, (int) KEY_PREFIX_SIZE); + ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset], + item->key_size - (int) KEY_PREFIX_SIZE); +} + +/** + * for binary protocol, this function build the set command + * and add the command to send buffer array. + * + * @param c, pointer of the concurrency + * @param item, pointer of task item which includes the object + * information + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_build_bin_write_buf_set(ms_conn_t *c, ms_task_item_t *item) { + assert(c->wbuf == c->wcurr); + + int value_offset; + protocol_binary_request_set *rep = (protocol_binary_request_set *) c->wcurr; + uint16_t keylen = (uint16_t) item->key_size; + uint32_t bodylen = + (uint32_t) sizeof(rep->message.body) + (uint32_t) keylen + (uint32_t) item->value_size; + + ms_add_bin_header(c, PROTOCOL_BINARY_CMD_SET, sizeof(rep->message.body), keylen, bodylen); + rep->message.body.flags = 0; + rep->message.body.expiration = htonl((uint32_t) item->exp_time); + ms_add_iov(c, &rep->message.body, sizeof(rep->message.body)); + ms_add_key_to_iov(c, item); + + if (item->value_offset == INVALID_OFFSET) { + value_offset = item->key_suffix_offset; + } else { + value_offset = item->value_offset; + } + ms_add_iov(c, &ms_setting.char_block[value_offset], item->value_size); + + return EXIT_SUCCESS; +} /* ms_build_bin_write_buf_set */ + +/** + * for binary protocol, this function build the get command and + * add the command to send buffer array. + * + * @param c, pointer of the concurrency + * @param item, pointer of task item which includes the object + * information + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_build_bin_write_buf_get(ms_conn_t *c, ms_task_item_t *item) { + assert(c->wbuf == c->wcurr); + + ms_add_bin_header(c, PROTOCOL_BINARY_CMD_GET, 0, (uint16_t) item->key_size, + (uint32_t) item->key_size); + ms_add_key_to_iov(c, item); + + return EXIT_SUCCESS; +} /* ms_build_bin_write_buf_get */ + +/** + * for binary protocol, this function build the multi-get + * command and add the command to send buffer array. + * + * @param c, pointer of the concurrency + * @param item, pointer of task item which includes the object + * information + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_build_bin_write_buf_mlget(ms_conn_t *c) { + ms_task_item_t *item; + + assert(c->wbuf == c->wcurr); + + for (int i = 0; i < c->mlget_task.mlget_num; i++) { + item = c->mlget_task.mlget_item[i].item; + assert(item); + + ms_add_bin_header(c, PROTOCOL_BINARY_CMD_GET, 0, (uint16_t) item->key_size, + (uint32_t) item->key_size); + ms_add_key_to_iov(c, item); + c->wcurr += sizeof(protocol_binary_request_get); + } + + c->wcurr = c->wbuf; + + return EXIT_SUCCESS; +} /* ms_build_bin_write_buf_mlget */ diff --git a/contrib/bin/memaslap/ms_conn.h b/contrib/bin/memaslap/ms_conn.h new file mode 100644 index 00000000..426eae82 --- /dev/null +++ b/contrib/bin/memaslap/ms_conn.h @@ -0,0 +1,229 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#ifndef MS_CONN_H +#define MS_CONN_H + +#include +#include +#include +#include + +#include "ms_task.h" +#include "libmemcachedprotocol-0.0/binary.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define DATA_BUFFER_SIZE \ + (1024 * 1024 + 2048) /* read buffer, 1M + 2k, enough for the max value(1M) */ +#define WRITE_BUFFER_SIZE (32 * 1024) /* write buffer, 32k */ +#define UDP_DATA_BUFFER_SIZE (1 * 1024 * 1024) /* read buffer for UDP, 1M */ +#define UDP_MAX_PAYLOAD_SIZE 1400 /* server limit UDP payload size */ +#define UDP_MAX_SEND_PAYLOAD_SIZE 1400 /* mtu size is 1500 */ +#define UDP_HEADER_SIZE 8 /* UDP header size */ +#define MAX_SENDBUF_SIZE (256 * 1024 * 1024) /* Maximum socket buffer size */ +#define SOCK_WAIT_TIMEOUT 30 /* maximum waiting time of UDP, 30s */ +#define MAX_UDP_PACKET (1 << 16) /* maximum UDP packets, 65536 */ + +/* Initial size of the sendmsg() scatter/gather array. */ +#define IOV_LIST_INITIAL 400 + +/* Initial number of sendmsg() argument structures to allocate. */ +#define MSG_LIST_INITIAL 10 + +/* High water marks for buffer shrinking */ +#define READ_BUFFER_HIGHWAT (2 * DATA_BUFFER_SIZE) +#define UDP_DATA_BUFFER_HIGHWAT (4 * UDP_DATA_BUFFER_SIZE) +#define IOV_LIST_HIGHWAT 600 +#define MSG_LIST_HIGHWAT 100 + +/* parse udp header */ +#define HEADER_TO_REQID(ptr) ((uint16_t) *ptr * 256 + (uint16_t) * (ptr + 1)) +#define HEADER_TO_SEQNUM(ptr) ((uint16_t) * (ptr + 2) * 256 + (uint16_t) * (ptr + 3)) +#define HEADER_TO_PACKETS(ptr) ((uint16_t) * (ptr + 4) * 256 + (uint16_t) * (ptr + 5)) + +/* states of connection */ +enum conn_states { + conn_read, /* reading in a command line */ + conn_write, /* writing out a simple response */ + conn_closing /* closing this connection */ +}; + +/* returned states of memcached command */ +enum mcd_ret { + MCD_SUCCESS, /* command success */ + MCD_FAILURE, /* command failure */ + MCD_UNKNOWN_READ_FAILURE, /* unknown read failure */ + MCD_PROTOCOL_ERROR, /* protocol error */ + MCD_CLIENT_ERROR, /* client error, wrong command */ + MCD_SERVER_ERROR, /* server error, server run command failed */ + MCD_DATA_EXISTS, /* object is existent in server */ + MCD_NOTSTORED, /* server doesn't set the object successfully */ + MCD_STORED, /* server set the object successfully */ + MCD_NOTFOUND, /* server not find the object */ + MCD_END, /* end of the response of get command */ + MCD_DELETED, /* server delete the object successfully */ + MCD_STAT /* response of stats command */ +}; + +/* used to store the current or previous running command state */ +typedef struct cmdstat { + int cmd; /* command name */ + int retstat; /* return state of this command */ + bool isfinish; /* if it read all the response data */ + uint64_t key_prefix; /* key prefix */ +} ms_cmdstat_t; + +/* udp packet structure */ +typedef struct udppkt { + uint8_t *header; /* udp header of the packet */ + char *data; /* udp data of the packet */ + int rbytes; /* number of data in the packet */ + int copybytes; /* number of copied data in the packet */ +} ms_udppkt_t; + +/* three protocols supported */ +enum protocol { + ascii_prot = 3, /* ASCII protocol */ + binary_prot /* binary protocol */ +}; + +/** + * concurrency structure + * + * Each thread has a libevent to manage the events of network. + * Each thread has one or more self-governed concurrencies; + * each concurrency has one or more socket connections. This + * concurrency structure includes all the private variables of + * the concurrency. + */ +typedef struct conn { + uint32_t conn_idx; /* connection index in the thread */ + int sfd; /* current tcp sock handler of the connection structure */ + int udpsfd; /* current udp sock handler of the connection structure*/ + int state; /* state of the connection */ + struct event event; /* event for libevent */ + short ev_flags; /* event flag for libevent */ + short which; /* which events were just triggered */ + bool change_sfd; /* whether change sfd */ + + int *tcpsfd; /* TCP sock array */ + uint32_t total_sfds; /* how many socks in the tcpsfd array */ + uint32_t alive_sfds; /* alive socks */ + uint32_t cur_idx; /* current sock index in tcpsfd array */ + + ms_cmdstat_t precmd; /* previous command state */ + ms_cmdstat_t currcmd; /* current command state */ + + char *rbuf; /* buffer to read commands into */ + char *rcurr; /* but if we parsed some already, this is where we stopped */ + int rsize; /* total allocated size of rbuf */ + int rbytes; /* how much data, starting from rcur, do we have unparsed */ + + bool readval; /* read value state, read known data size */ + int rvbytes; /* total value size need to read */ + + char *wbuf; /* buffer to write commands out */ + char *wcurr; /* for multi-get, where we stopped */ + int wsize; /* total allocated size of wbuf */ + bool ctnwrite; /* continue to write */ + + /* data for the mwrite state */ + struct iovec *iov; + int iovsize; /* number of elements allocated in iov[] */ + int iovused; /* number of elements used in iov[] */ + + struct msghdr *msglist; + int msgsize; /* number of elements allocated in msglist[] */ + int msgused; /* number of elements used in msglist[] */ + int msgcurr; /* element in msglist[] being transmitted now */ + int msgbytes; /* number of bytes in current msg */ + + /* data for UDP clients */ + bool udp; /* is this is a UDP "connection" */ + uint32_t request_id; /* UDP request ID of current operation, if this is a UDP "connection" */ + uint8_t *hdrbuf; /* udp packet headers */ + int hdrsize; /* number of headers' worth of space is allocated */ + struct sockaddr srv_recv_addr; /* Sent the most recent request to which server */ + socklen_t srv_recv_addr_size; + + /* udp read buffer */ + char *rudpbuf; /* buffer to read commands into for udp */ + int rudpsize; /* total allocated size of rudpbuf */ + int rudpbytes; /* how much data, starting from rudpbuf */ + + /* order udp packet */ + ms_udppkt_t *udppkt; /* the offset of udp packet in rudpbuf */ + int packets; /* number of total packets need to read */ + int recvpkt; /* number of received packets */ + int pktcurr; /* current packet in rudpbuf being ordered */ + int ordcurr; /* current ordered packet */ + + ms_task_item_t *item_win; /* task sequence */ + int win_size; /* current task window size */ + uint64_t set_cursor; /* current set item index in the item window */ + ms_task_t curr_task; /* current running task */ + ms_mlget_task_t mlget_task; /* multi-get task */ + + int warmup_num; /* to run how many warm up operations*/ + int remain_warmup_num; /* left how many warm up operations to run */ + int64_t exec_num; /* to run how many task operations */ + int64_t remain_exec_num; /* how many remained task operations to run */ + + /* response time statistic and time out control */ + struct timeval start_time; /* start time of current operation(s) */ + struct timeval end_time; /* end time of current operation(s) */ + + /* Binary protocol stuff */ + protocol_binary_response_header binary_header; /* local temporary binary header */ + enum protocol protocol; /* which protocol this connection speaks */ +} ms_conn_t; + +/* used to generate the key prefix */ +uint64_t ms_get_key_prefix(void); + +/** + * setup a connection, each connection structure of each + * thread must call this function to initialize. + */ +int ms_setup_conn(ms_conn_t *c); + +/* after one operation completes, reset the connection */ +void ms_reset_conn(ms_conn_t *c, bool timeout); + +/** + * reconnect several disconnected socks in the connection + * structure, the ever-1-second timer of the thread will check + * whether some socks in the connections disconnect. if + * disconnect, reconnect the sock. + */ +int ms_reconn_socks(ms_conn_t *c); + +/* used to send set command to server */ +int ms_mcd_set(ms_conn_t *c, ms_task_item_t *item); + +/* used to send the get command to server */ +int ms_mcd_get(ms_conn_t *c, ms_task_item_t *item); + +/* used to send the multi-get command to server */ +int ms_mcd_mlget(ms_conn_t *c); + +#ifdef __cplusplus +} +#endif + +#endif /* end of MS_CONN_H */ diff --git a/contrib/bin/memaslap/ms_main.c b/contrib/bin/memaslap/ms_main.c new file mode 100644 index 00000000..d7573eb5 --- /dev/null +++ b/contrib/bin/memaslap/ms_main.c @@ -0,0 +1,778 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#include "mem_config.h" + +#include +#include +#include +#include +#include + +#if defined(HAVE_SYS_TIME_H) +# include +#endif + +#if defined(HAVE_TIME_H) +# include +#endif + +#include "ms_atomic.h" +#include "ms_sigsegv.h" +#include "ms_setting.h" +#include "ms_thread.h" + +/* global structure */ +ms_global_t ms_global; + +/* global stats information structure */ +ms_stats_t ms_stats; + +/* global statistic structure */ +ms_statistic_t ms_statistic; + +#define PROGRAM_NAME "memaslap" +#define PROGRAM_DESCRIPTION "Generates workload against memcached servers." + +#ifdef __sun +/* For some odd reason the option struct on solaris defines the argument + * as char* and not const char* + */ +# define OPTIONSTRING char * +#else +# define OPTIONSTRING const char * +#endif + +/* options */ +static struct option long_options[] = { + {(OPTIONSTRING) "servers", required_argument, NULL, OPT_SERVERS}, + {(OPTIONSTRING) "threads", required_argument, NULL, OPT_THREAD_NUMBER}, + {(OPTIONSTRING) "concurrency", required_argument, NULL, OPT_CONCURRENCY}, + {(OPTIONSTRING) "conn_sock", required_argument, NULL, OPT_SOCK_PER_CONN}, + {(OPTIONSTRING) "execute_number", required_argument, NULL, OPT_EXECUTE_NUMBER}, + {(OPTIONSTRING) "time", required_argument, NULL, OPT_TIME}, + {(OPTIONSTRING) "cfg_cmd", required_argument, NULL, OPT_CONFIG_CMD}, + {(OPTIONSTRING) "win_size", required_argument, NULL, OPT_WINDOW_SIZE}, + {(OPTIONSTRING) "fixed_size", required_argument, NULL, OPT_FIXED_LTH}, + {(OPTIONSTRING) "verify", required_argument, NULL, OPT_VERIFY}, + {(OPTIONSTRING) "division", required_argument, NULL, OPT_GETS_DIVISION}, + {(OPTIONSTRING) "stat_freq", required_argument, NULL, OPT_STAT_FREQ}, + {(OPTIONSTRING) "exp_verify", required_argument, NULL, OPT_EXPIRE}, + {(OPTIONSTRING) "overwrite", required_argument, NULL, OPT_OVERWRITE}, + {(OPTIONSTRING) "reconnect", no_argument, NULL, OPT_RECONNECT}, + {(OPTIONSTRING) "udp", no_argument, NULL, OPT_UDP}, + {(OPTIONSTRING) "facebook", no_argument, NULL, OPT_FACEBOOK_TEST}, + {(OPTIONSTRING) "binary", no_argument, NULL, OPT_BINARY_PROTOCOL}, + {(OPTIONSTRING) "tps", required_argument, NULL, OPT_TPS}, + {(OPTIONSTRING) "rep_write", required_argument, NULL, OPT_REP_WRITE_SRV}, + {(OPTIONSTRING) "verbose", no_argument, NULL, OPT_VERBOSE}, + {(OPTIONSTRING) "help", no_argument, NULL, OPT_HELP}, + {(OPTIONSTRING) "version", no_argument, NULL, OPT_VERSION}, + {0, 0, 0, 0}, +}; + +/* Prototypes */ +static void ms_sync_lock_init(void); +static void ms_sync_lock_destroy(void); +static void ms_global_struct_init(void); +static void ms_global_struct_destroy(void); +static void ms_version_command(const char *command_name); +static const char *ms_lookup_help(ms_options_t option); +static int64_t ms_parse_time(void); +static int64_t ms_parse_size(void); +static void ms_options_parse(int argc, char *argv[]); +static int ms_check_para(void); +static void ms_statistic_init(void); +static void ms_stats_init(void); +static void ms_print_statistics(int in_time); +static void ms_print_memaslap_stats(struct timeval *start_time, struct timeval *end_time); +static void ms_monitor_slap_mode(void); + +/** + * output the help information + * + * @param command_name, the string of this process + * @param description, description of this process + * @param long_options, global options array + */ +static void ms_help_command(const char *command_name, const char *description) { + char *help_message = NULL; + + printf("%s v%u.%u\n", command_name, 1U, 0U); + printf(" %s\n\n", description); + printf("Usage:\n" + " memaslap -hV | -s servers [-F config_file] [-t time | -x exe_num] [...]\n\n" + "Options:\n"); + + for (int x = 0; long_options[x].name; x++) { + printf(" -%c, --%s%c\n", long_options[x].val, long_options[x].name, + long_options[x].has_arg ? '=' : ' '); + + if ((help_message = (char *) ms_lookup_help(long_options[x].val))) { + printf(" %s\n", help_message); + } + } + + printf("\nExamples:\n" + " memaslap -s 127.0.0.1:11211 -S 5s\n" + " memaslap -s 127.0.0.1:11211 -t 2m -v 0.2 -e 0.05 -b\n" + " memaslap -s 127.0.0.1:11211 -F config -t 2m -w 40k -S 20s -o 0.2\n" + " memaslap -s 127.0.0.1:11211 -F config -t 2m -T 4 -c 128 -d 20 -P 40k\n" + " memaslap -s 127.0.0.1:11211 -F config -t 2m -d 50 -a -n 40\n" + " memaslap -s 127.0.0.1:11211,127.0.0.1:11212 -F config -t 2m\n" + " memaslap -s 127.0.0.1:11211,127.0.0.1:11212 -F config -t 2m -p 2\n\n"); +} /* ms_help_command */ + +/* initialize the global locks */ +static void ms_sync_lock_init() { + ms_global.init_lock.count = 0; + pthread_mutex_init(&ms_global.init_lock.lock, NULL); + pthread_cond_init(&ms_global.init_lock.cond, NULL); + + ms_global.warmup_lock.count = 0; + pthread_mutex_init(&ms_global.warmup_lock.lock, NULL); + pthread_cond_init(&ms_global.warmup_lock.cond, NULL); + + ms_global.run_lock.count = 0; + pthread_mutex_init(&ms_global.run_lock.lock, NULL); + pthread_cond_init(&ms_global.run_lock.cond, NULL); + + pthread_mutex_init(&ms_global.quit_mutex, NULL); + pthread_mutex_init(&ms_global.seq_mutex, NULL); +} /* ms_sync_lock_init */ + +/* destroy the global locks */ +static void ms_sync_lock_destroy() { + pthread_mutex_destroy(&ms_global.init_lock.lock); + pthread_cond_destroy(&ms_global.init_lock.cond); + + pthread_mutex_destroy(&ms_global.warmup_lock.lock); + pthread_cond_destroy(&ms_global.warmup_lock.cond); + + pthread_mutex_destroy(&ms_global.run_lock.lock); + pthread_cond_destroy(&ms_global.run_lock.cond); + + pthread_mutex_destroy(&ms_global.quit_mutex); + pthread_mutex_destroy(&ms_global.seq_mutex); + + if (ms_setting.stat_freq > 0) { + pthread_mutex_destroy(&ms_statistic.stat_mutex); + } +} /* ms_sync_lock_destroy */ + +/* initialize the global structure */ +static void ms_global_struct_init() { + ms_sync_lock_init(); + ms_global.finish_warmup = false; + ms_global.time_out = false; +} + +/* destroy the global structure */ +static void ms_global_struct_destroy() { + ms_sync_lock_destroy(); +} + +/** + * output the version information + * + * @param command_name, the string of this process + */ +static void ms_version_command(const char *command_name) { + printf("%s v%u.%u\n", command_name, 1U, 0U); + exit(0); +} + +/** + * get the description of the option + * + * @param option, option of command line + * + * @return char*, description of the command option + */ +static const char *ms_lookup_help(ms_options_t option) { + switch (option) { + case OPT_SERVERS: + return "List one or more servers to connect. Servers count must be less than\n" + " threads count. e.g.: --servers=localhost:1234,localhost:11211"; + + case OPT_VERSION: + return "Display the version of the application and then exit."; + + case OPT_HELP: + return "Display this message and then exit."; + + case OPT_EXECUTE_NUMBER: + return "Number of operations(get and set) to execute for the\n" + " given test. Default 1000000."; + + case OPT_THREAD_NUMBER: + return "Number of threads to startup, better equal to CPU numbers. Default 8."; + + case OPT_CONCURRENCY: + return "Number of concurrency to simulate with load. Default 128."; + + case OPT_FIXED_LTH: + return "Fixed length of value."; + + case OPT_VERIFY: + return "The proportion of date verification, e.g.: --verify=0.01"; + + case OPT_GETS_DIVISION: + return "Number of keys to multi-get once. Default 1, means single get."; + + case OPT_TIME: + return "How long the test to run, suffix: s-seconds, m-minutes, h-hours,\n" + " d-days e.g.: --time=2h."; + + case OPT_CONFIG_CMD: + return "Load the configure file to get command,key and value distribution list."; + + case OPT_WINDOW_SIZE: + return "Task window size of each concurrency, suffix: K, M e.g.: --win_size=10k.\n" + " Default 10k."; + + case OPT_UDP: + return "UDP support, by default memaslap uses TCP; TCP port and UDP port of\n" + " server must be same."; + + case OPT_EXPIRE: + return "The proportion of objects with expire time, e.g.: --exp_verify=0.01.\n" + " Default no object with expire time"; + + case OPT_OVERWRITE: + return "The proportion of objects need overwrite, e.g.: --overwrite=0.01.\n" + " Default never overwrite object."; + + case OPT_STAT_FREQ: + return "Frequency of dumping statistic information. suffix: s-seconds,\n" + " m-minutes, e.g.: --resp_freq=10s."; + + case OPT_SOCK_PER_CONN: + return "Number of TCP socks per concurrency. Default 1."; + + case OPT_RECONNECT: + return "Reconnect support, when connection is closed it will be reconnected."; + + case OPT_VERBOSE: + return "Whether it outputs detailed information when verification fails."; + + case OPT_FACEBOOK_TEST: + return "Whether it enables facebook test feature, set with TCP and multi-get with UDP."; + + case OPT_BINARY_PROTOCOL: + return "Whether it enables binary protocol. Default with ASCII protocol."; + + case OPT_TPS: + return "Expected throughput, suffix: K, e.g.: --tps=10k."; + + case OPT_REP_WRITE_SRV: + return "The first nth servers can write data, e.g.: --rep_write=2."; + + default: + return "Forgot to document this option :)"; + } /* switch */ +} /* ms_lookup_help */ + +/* used to parse the time string */ +static int64_t ms_parse_time() { + int64_t ret = 0; + char unit = optarg[strlen(optarg) - 1]; + + optarg[strlen(optarg) - 1] = '\0'; + ret = atoi(optarg); + + switch (unit) { + case 'd': + case 'D': + ret *= 24; + /* fall through */ + case 'h': + case 'H': + ret *= 60; + /* fall through */ + case 'm': + case 'M': + ret *= 60; + /* fall through */ + case 's': + case 'S': + break; + + default: + ret = -1; + break; + } /* switch */ + + return ret; +} /* ms_parse_time */ + +/* used to parse the size string */ +static int64_t ms_parse_size() { + int64_t ret = -1; + char unit = optarg[strlen(optarg) - 1]; + + optarg[strlen(optarg) - 1] = '\0'; + errno = 0; + ret = strtoll(optarg, (char **) NULL, 10); + if (errno) { + fprintf(stderr, "strtoll(optarg,..): %s\n", strerror(errno)); + exit(1); + } + + switch (unit) { + case 'k': + case 'K': + ret *= 1024; + break; + + case 'm': + case 'M': + ret *= 1024 * 1024; + break; + + case 'g': + case 'G': + ret *= 1024 * 1024 * 1024; + break; + + default: + ret = -1; + break; + } /* switch */ + + return ret; +} /* ms_parse_size */ + +/* used to parse the options of command line */ +static void ms_options_parse(int argc, char *argv[]) { + int option_index = 0; + int option_rv; + + while ((option_rv = getopt_long(argc, argv, + "VhURbaBs:x:T:c:X:v:d:" + "t:S:F:w:e:o:n:P:p:", + long_options, &option_index)) + != -1) + { + switch (option_rv) { + case 0: + break; + + case OPT_VERSION: /* --version or -V */ + ms_version_command(PROGRAM_NAME); + break; + + case OPT_HELP: /* --help or -h */ + ms_help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION); + exit(0); + break; + + case OPT_SERVERS: /* --servers or -s */ + ms_setting.srv_str = strdup(optarg); + break; + + case OPT_CONCURRENCY: /* --concurrency or -c */ + errno = 0; + ms_setting.nconns = (uint32_t) strtoul(optarg, (char **) NULL, 10); + if (ms_setting.nconns <= 0 || errno) { + fprintf(stderr, "Concurrency must be greater than 0.:-)\n"); + exit(1); + } + break; + + case OPT_EXECUTE_NUMBER: /* --execute_number or -x */ + errno = 0; + ms_setting.exec_num = (int) strtol(optarg, (char **) NULL, 10); + if (ms_setting.exec_num <= 0 || errno) { + fprintf(stderr, "Execute number must be greater than 0.:-)\n"); + exit(1); + } + break; + + case OPT_THREAD_NUMBER: /* --threads or -T */ + errno = 0; + ms_setting.nthreads = (uint32_t) strtoul(optarg, (char **) NULL, 10); + if (ms_setting.nthreads <= 0 || errno) { + fprintf(stderr, "Threads number must be greater than 0.:-)\n"); + exit(1); + } + break; + + case OPT_FIXED_LTH: /* --fixed_size or -X */ + errno = 0; + ms_setting.fixed_value_size = (size_t) strtoull(optarg, (char **) NULL, 10); + if ((ms_setting.fixed_value_size <= 0 || errno) + || (ms_setting.fixed_value_size > MAX_VALUE_SIZE)) + { + fprintf(stderr, "Value size must be between 0 and 1M.:-)\n"); + exit(1); + } + break; + + case OPT_VERIFY: /* --verify or -v */ + ms_setting.verify_percent = atof(optarg); + if ((ms_setting.verify_percent <= 0) || (ms_setting.verify_percent > 1.0)) { + fprintf(stderr, + "Data verification rate must be " + "greater than 0 and less than 1.0. :-)\n"); + exit(1); + } + break; + + case OPT_GETS_DIVISION: /* --division or -d */ + errno = 0; + ms_setting.mult_key_num = (int) strtol(optarg, (char **) NULL, 10); + if (ms_setting.mult_key_num <= 0 || errno) { + fprintf(stderr, "Multi-get key number must be greater than 0.:-)\n"); + exit(1); + } + break; + + case OPT_TIME: /* --time or -t */ + ms_setting.run_time = (int) ms_parse_time(); + if (ms_setting.run_time == -1) { + fprintf(stderr, + "Please specify the run time. :-)\n" + "'s' for second, 'm' for minute, 'h' for hour, " + "'d' for day. e.g.: --time=24h (means 24 hours).\n"); + exit(1); + } + + if (ms_setting.run_time == 0) { + fprintf(stderr, "Running time can not be 0. :-)\n"); + exit(1); + } + break; + + case OPT_CONFIG_CMD: /* --cfg_cmd or -F */ + ms_setting.cfg_file = strdup(optarg); + break; + + case OPT_WINDOW_SIZE: /* --win_size or -w */ + ms_setting.win_size = (size_t) ms_parse_size(); + if (ms_setting.win_size == (size_t) -1) { + fprintf(stderr, + "Please specify the item window size. :-)\n" + "e.g.: --win_size=10k (means 10k task window size).\n"); + exit(1); + } + break; + + case OPT_UDP: /* --udp or -U*/ + ms_setting.udp = true; + break; + + case OPT_EXPIRE: /* --exp_verify or -e */ + ms_setting.exp_ver_per = atof(optarg); + if ((ms_setting.exp_ver_per <= 0) || (ms_setting.exp_ver_per > 1.0)) { + fprintf(stderr, + "Expire time verification rate must be " + "greater than 0 and less than 1.0. :-)\n"); + exit(1); + } + break; + + case OPT_OVERWRITE: /* --overwrite or -o */ + ms_setting.overwrite_percent = atof(optarg); + if ((ms_setting.overwrite_percent <= 0) || (ms_setting.overwrite_percent > 1.0)) { + fprintf(stderr, + "Objects overwrite rate must be " + "greater than 0 and less than 1.0. :-)\n"); + exit(1); + } + break; + + case OPT_STAT_FREQ: /* --stat_freq or -S */ + ms_setting.stat_freq = (int) ms_parse_time(); + if (ms_setting.stat_freq == -1) { + fprintf(stderr, + "Please specify the frequency of dumping " + "statistic information. :-)\n" + "'s' for second, 'm' for minute, 'h' for hour, " + "'d' for day. e.g.: --time=24h (means 24 hours).\n"); + exit(1); + } + + if (ms_setting.stat_freq == 0) { + fprintf(stderr, + "The frequency of dumping statistic information " + "can not be 0. :-)\n"); + exit(1); + } + break; + + case OPT_SOCK_PER_CONN: /* --conn_sock or -n */ + errno = 0; + ms_setting.sock_per_conn = (uint32_t) strtoul(optarg, (char **) NULL, 10); + if (ms_setting.sock_per_conn <= 0 || errno) { + fprintf(stderr, + "Number of socks of each concurrency " + "must be greater than 0.:-)\n"); + exit(1); + } + break; + + case OPT_RECONNECT: /* --reconnect or -R */ + ms_setting.reconnect = true; + break; + + case OPT_VERBOSE: /* --verbose or -b */ + ms_setting.verbose = true; + break; + + case OPT_FACEBOOK_TEST: /* --facebook or -a */ + ms_setting.facebook_test = true; + break; + + case OPT_BINARY_PROTOCOL: /* --binary or -B */ + ms_setting.binary_prot_ = true; + break; + + case OPT_TPS: /* --tps or -P */ + ms_setting.expected_tps = (int) ms_parse_size(); + if (ms_setting.expected_tps == -1) { + fprintf(stderr, + "Please specify the item expected throughput. :-)\n" + "e.g.: --tps=10k (means 10k throughput).\n"); + exit(1); + } + break; + + case OPT_REP_WRITE_SRV: /* --rep_write or -p */ + errno = 0; + ms_setting.rep_write_srv = (uint32_t) strtoul(optarg, (char **) NULL, 10); + if (ms_setting.rep_write_srv <= 0 || errno) { + fprintf(stderr, + "Number of replication writing server must be greater " + "than 0.:-)\n"); + exit(1); + } + break; + + case '?': + /* getopt_long already printed an error message. */ + exit(1); + + default: + abort(); + } /* switch */ + } +} /* ms_options_parse */ + +static int ms_check_para() { + if (ms_setting.srv_str == NULL) { + char *temp; + + if ((temp = getenv("MEMCACHED_SERVERS"))) { + ms_setting.srv_str = strdup(temp); + } else { + fprintf(stderr, "No servers provided\n\n"); + return -1; + } + } + + if (ms_setting.nconns % (uint32_t) ms_setting.nthreads) { + fprintf(stderr, "Concurrency must be the multiples of threads count.\n"); + return -1; + } + + if (ms_setting.win_size % UNIT_ITEMS_COUNT) { + fprintf(stderr, "Window size must be the multiples of 1024.\n\n"); + return -1; + } + + return EXIT_SUCCESS; +} /* ms_check_para */ + +/* initialize the statistic structure */ +static void ms_statistic_init() { + pthread_mutex_init(&ms_statistic.stat_mutex, NULL); + ms_init_stats(&ms_statistic.get_stat, "Get"); + ms_init_stats(&ms_statistic.set_stat, "Set"); + ms_init_stats(&ms_statistic.total_stat, "Total"); +} /* ms_statistic_init */ + +/* initialize the global state structure */ +static void ms_stats_init() { + memset(&ms_stats, 0, sizeof(ms_stats_t)); + if (ms_setting.stat_freq > 0) { + ms_statistic_init(); + } +} /* ms_stats_init */ + +/* use to output the statistic */ +static void ms_print_statistics(int in_time) { + int obj_size = (int) (ms_setting.avg_key_size + ms_setting.avg_val_size); + + printf("\033[1;1H\033[2J\n"); + ms_dump_format_stats(&ms_statistic.get_stat, in_time, ms_setting.stat_freq, obj_size); + ms_dump_format_stats(&ms_statistic.set_stat, in_time, ms_setting.stat_freq, obj_size); + ms_dump_format_stats(&ms_statistic.total_stat, in_time, ms_setting.stat_freq, obj_size); +} /* ms_print_statistics */ + +/* used to print the states of memaslap */ +static void ms_print_memaslap_stats(struct timeval *start_time, struct timeval *end_time) { + char buf[0x2000]; + char *pos = buf; + + pos += snprintf(pos, sizeof(buf), "cmd_get: %lu\n", (unsigned long) ms_stats.cmd_get); + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "cmd_set: %lu\n", + (unsigned long) ms_stats.cmd_set); + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "get_misses: %lu\n", + (unsigned long) ms_stats.get_misses); + + if (ms_setting.verify_percent > 0) { + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "verify_misses: %lu\n", + (unsigned long) ms_stats.vef_miss); + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "verify_failed: %lu\n", + (unsigned long) ms_stats.vef_failed); + } + + if (ms_setting.exp_ver_per > 0) { + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "expired_get: %lu\n", + (unsigned long) ms_stats.exp_get); + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "unexpired_unget: %lu\n", + (unsigned long) ms_stats.unexp_unget); + } + + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "written_bytes: %lu\n", + (unsigned long) ms_stats.bytes_written); + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "read_bytes: %lu\n", + (unsigned long) ms_stats.bytes_read); + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "object_bytes: %lu\n", + (unsigned long) ms_stats.obj_bytes); + + if (ms_setting.udp || ms_setting.facebook_test) { + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "packet_disorder: %lu\n", + (unsigned long) ms_stats.pkt_disorder); + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "packet_drop: %lu\n", + (unsigned long) ms_stats.pkt_drop); + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "udp_timeout: %lu\n", + (unsigned long) ms_stats.udp_timeout); + } + + if (ms_setting.stat_freq > 0) { + ms_dump_stats(&ms_statistic.get_stat); + ms_dump_stats(&ms_statistic.set_stat); + ms_dump_stats(&ms_statistic.total_stat); + } + + int64_t time_diff = ms_time_diff(start_time, end_time); + pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), + "\nRun time: %.1fs Ops: %llu TPS: %.0Lf Net_rate: %.1fM/s\n", + (double) time_diff / 1000000, + (unsigned long long) (ms_stats.cmd_get + ms_stats.cmd_set), + (ms_stats.cmd_get + ms_stats.cmd_set) / ((long double) time_diff / 1000000), + (double) (ms_stats.bytes_written + ms_stats.bytes_read) / 1024 / 1024 + / ((double) time_diff / 1000000)); + assert(pos <= (buf + sizeof(buf))); + + fwrite(buf, 1, pos - buf, stdout); + fflush(stdout); +} /* ms_print_memaslap_stats */ + +/* the loop of the main thread, wait the work threads to complete */ +static void ms_monitor_slap_mode() { + struct timeval start_time, end_time; + + /* Wait all the threads complete initialization. */ + pthread_mutex_lock(&ms_global.init_lock.lock); + while (ms_global.init_lock.count < ms_setting.nthreads) { + pthread_cond_wait(&ms_global.init_lock.cond, &ms_global.init_lock.lock); + } + pthread_mutex_unlock(&ms_global.init_lock.lock); + + /* only when there is no set operation it need warm up */ + if (ms_setting.cmd_distr[CMD_SET].cmd_prop < PROP_ERROR) { + /* Wait all the connects complete warm up. */ + pthread_mutex_lock(&ms_global.warmup_lock.lock); + while (ms_global.warmup_lock.count < ms_setting.nconns) { + pthread_cond_wait(&ms_global.warmup_lock.cond, &ms_global.warmup_lock.lock); + } + pthread_mutex_unlock(&ms_global.warmup_lock.lock); + } + ms_global.finish_warmup = true; + + /* running in "run time" mode, user specify run time */ + if (ms_setting.run_time > 0) { + int second = 0; + gettimeofday(&start_time, NULL); + while (1) { + sleep(1); + second++; + + if ((ms_setting.stat_freq > 0) && (second % ms_setting.stat_freq == 0) + && (ms_stats.active_conns >= ms_setting.nconns) && (ms_stats.active_conns <= INT_MAX)) + { + ms_print_statistics(second); + } + + if (ms_setting.run_time <= second) { + ms_global.time_out = true; + break; + } + + /* all connections disconnect */ + if ((second > 5) && (ms_stats.active_conns == 0)) { + break; + } + } + gettimeofday(&end_time, NULL); + sleep(1); /* wait all threads clean up */ + } else { + /* running in "execute number" mode, user specify execute number */ + gettimeofday(&start_time, NULL); + + /* + * We loop until we know that all connects have cleaned up. + */ + pthread_mutex_lock(&ms_global.run_lock.lock); + while (ms_global.run_lock.count < ms_setting.nconns) { + pthread_cond_wait(&ms_global.run_lock.cond, &ms_global.run_lock.lock); + } + pthread_mutex_unlock(&ms_global.run_lock.lock); + + gettimeofday(&end_time, NULL); + } + + ms_print_memaslap_stats(&start_time, &end_time); +} /* ms_monitor_slap_mode */ + +/* the main function */ +int main(int argc, char *argv[]) { + srandom((unsigned int) time(NULL)); + ms_global_struct_init(); + + /* initialization */ + ms_setting_init_pre(); + ms_options_parse(argc, argv); + if (ms_check_para()) { + ms_help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION); + exit(1); + } + ms_setting_init_post(); + ms_stats_init(); + ms_thread_init(); + + /* waiting work thread complete its task */ + ms_monitor_slap_mode(); + + /* clean up */ + ms_thread_cleanup(); + ms_global_struct_destroy(); + ms_setting_cleanup(); + + return EXIT_SUCCESS; +} /* main */ diff --git a/contrib/bin/memaslap/ms_memslap.h b/contrib/bin/memaslap/ms_memslap.h new file mode 100644 index 00000000..36bb8f7f --- /dev/null +++ b/contrib/bin/memaslap/ms_memslap.h @@ -0,0 +1,133 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#ifndef MS_MEMSLAP_H +#define MS_MEMSLAP_H + +#include +#include +#include +#include +#include +#include +#include +#include +#if !defined(__cplusplus) +# include +#endif +#include + +#include "ms_stats.h" +#include "ms_atomic.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* command line option */ +typedef enum { + OPT_VERSION = 'V', + OPT_HELP = 'h', + OPT_UDP = 'U', + OPT_SERVERS = 's', + OPT_EXECUTE_NUMBER = 'x', + OPT_THREAD_NUMBER = 'T', + OPT_CONCURRENCY = 'c', + OPT_FIXED_LTH = 'X', + OPT_VERIFY = 'v', + OPT_GETS_DIVISION = 'd', + OPT_TIME = 't', + OPT_CONFIG_CMD = 'F', + OPT_WINDOW_SIZE = 'w', + OPT_EXPIRE = 'e', + OPT_STAT_FREQ = 'S', + OPT_RECONNECT = 'R', + OPT_VERBOSE = 'b', + OPT_FACEBOOK_TEST = 'a', + OPT_SOCK_PER_CONN = 'n', + OPT_BINARY_PROTOCOL = 'B', + OPT_OVERWRITE = 'o', + OPT_TPS = 'P', + OPT_REP_WRITE_SRV = 'p' +} ms_options_t; + +/* global statistic of response time */ +typedef struct statistic { + pthread_mutex_t stat_mutex; /* synchronize the following members */ + + ms_stat_t get_stat; /* statistics of get command */ + ms_stat_t set_stat; /* statistics of set command */ + ms_stat_t total_stat; /* statistics of both get and set commands */ +} ms_statistic_t; + +/* global status statistic structure */ +typedef struct stats { + ATOMIC uint32_t active_conns; /* active connections */ + ATOMIC size_t bytes_read; /* read bytes */ + ATOMIC size_t bytes_written; /* written bytes */ + ATOMIC size_t obj_bytes; /* object bytes */ + ATOMIC size_t pre_cmd_get; /* previous total get command count */ + ATOMIC size_t pre_cmd_set; /* previous total set command count */ + ATOMIC size_t cmd_get; /* current total get command count */ + ATOMIC size_t cmd_set; /* current total set command count */ + ATOMIC size_t get_misses; /* total objects of get miss */ + ATOMIC size_t vef_miss; /* total objects of verification miss */ + ATOMIC size_t vef_failed; /* total objects of verification failed */ + ATOMIC size_t unexp_unget; /* total objects which is unexpired but not get */ + ATOMIC size_t exp_get; /* total objects which is expired but get */ + ATOMIC size_t pkt_disorder; /* disorder packages of UDP */ + ATOMIC size_t pkt_drop; /* packages dropped of UDP */ + ATOMIC size_t udp_timeout; /* how many times timeout of UDP happens */ +} ms_stats_t; + +/* lock adapter */ +typedef struct sync_lock { + uint32_t count; + pthread_mutex_t lock; + pthread_cond_t cond; +} ms_sync_lock_t; + +/* global variable structure */ +typedef struct global { + /* synchronize lock */ + ms_sync_lock_t init_lock; + ms_sync_lock_t warmup_lock; + ms_sync_lock_t run_lock; + + /* mutex for outputing error log synchronously when memslap crashes */ + pthread_mutex_t quit_mutex; + + /* mutex for generating key prefix */ + pthread_mutex_t seq_mutex; + + /* global synchronous flags for slap mode */ + bool finish_warmup; + bool time_out; +} ms_global_t; + +/* global structure */ +extern ms_global_t ms_global; + +/* global stats information structure */ +extern ms_stats_t ms_stats; + +/* global statistic structure */ +extern ms_statistic_t ms_statistic; + +#ifdef __cplusplus +} +#endif + +#endif /* end of MS_MEMSLAP_H */ diff --git a/contrib/bin/memaslap/ms_setting.c b/contrib/bin/memaslap/ms_setting.c new file mode 100644 index 00000000..9d328ddc --- /dev/null +++ b/contrib/bin/memaslap/ms_setting.c @@ -0,0 +1,900 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#include "mem_config.h" + +#include "libmemcached/memcached.h" + +#include +#include +#include +#include +#include +#include +#include + +#include "ms_setting.h" +#include "ms_conn.h" + +#define MAX_EXEC_NUM 0x4000000000000000 /* 1 << 62 */ +#define ADDR_ALIGN(addr) ((addr + 15) & ~(16 - 1)) /* 16 bytes aligned */ +#define RAND_CHAR_SIZE (10 * 1024 * 1024) /* 10M character table */ +#define RESERVED_RAND_CHAR_SIZE (2 * 1024 * 1024) /* reserved 2M to avoid pointer sloping over */ + +#define DEFAULT_CONFIG_NAME ".memslap.cnf" + +#define DEFAULT_THREADS_NUM 1 /* default start one thread */ +#define DEFAULT_CONNS_NUM 16 /* default each thread with 16 connections */ +#define DEFAULT_EXE_NUM 0 /* default execute number is 0 */ +#define DEFAULT_VERIFY_RATE 0.0 /* default it doesn't do data verification */ +#define DEFAULT_OVERWRITE_RATE 0.0 /* default it doesn't do overwrite */ +#define DEFAULT_DIV 1 /* default it runs single get */ +#define DEFAULT_RUN_TIME 600 /* default run time 10 minutes */ +#define DEFAULT_WINDOW_SIZE (10 * UNIT_ITEMS_COUNT) /* default window size is 10k */ +#define DEFAULT_SOCK_PER_CONN 1 /* default socks per connection is 1 */ + +/* Use this for string generation */ +#define CHAR_COUNT 64 /* number of characters used to generate character table */ +const char ALPHANUMBERICS[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.-"; + +ms_setting_st ms_setting; /* store the settings specified by user */ + +/* read setting from configuration file */ +static void ms_get_serverlist(char *str); +static uint32_t ms_get_cpu_count(void); +ms_conf_type_t ms_get_conf_type(char *line); +static int ms_is_line_data(char *line); +static int ms_read_is_data(char *line, ssize_t nread); +static void ms_no_config_file(void); +static void ms_parse_cfg_file(char *cfg_file); + +/* initialize setting structure */ +static void ms_init_random_block(void); +static void ms_calc_avg_size(void); +static int ms_shuffle_distr(ms_distr_t *distr, int length); +static void ms_build_distr(void); +static void ms_print_setting(void); +static void ms_setting_slapmode_init_pre(void); +static void ms_setting_slapmode_init_post(void); + +#if !defined(HAVE_GETLINE) +# include +static ssize_t getline(char **line, size_t *line_size, FILE *fp) { + char delim = '\n'; + ssize_t result = 0; + size_t cur_len = 0; + + if (line == NULL || line_size == NULL || fp == NULL) { + errno = EINVAL; + return -1; + } + + if (*line == NULL || *line_size == 0) { + char *new_line; + *line_size = 120; + new_line = (char *) realloc(*line, *line_size); + if (new_line == NULL) { + result = -1; + return result; + } + *line = new_line; + } + + for (;;) { + int i = getc(fp); + if (i == EOF) { + result = -1; + break; + } + + /* Make enough space for len+1 (for final NUL) bytes. */ + if (cur_len + 1 >= *line_size) { + size_t needed_max = SSIZE_MAX < SIZE_MAX ? (size_t) SSIZE_MAX + 1 : SIZE_MAX; + size_t needed = (2 * (*line_size)) + 1; + char *new_line; + + if (needed_max < needed) + needed = needed_max; + if (cur_len + 1 >= needed) { + result = -1; + errno = EOVERFLOW; + return result; + } + + new_line = (char *) realloc(*line, needed); + if (new_line == NULL) { + result = -1; + return result; + } + + *line = new_line; + *line_size = needed; + } + + (*line)[cur_len] = (char) i; + cur_len++; + + if (i == delim) + break; + } + (*line)[cur_len] = '\0'; + if (cur_len) + return (ssize_t) cur_len; + return result; +} +#endif + +/** + * parse the server list string, and build the servers + * information structure array. this function is used to parse + * the command line options specified by user. + * + * @param str, the string of server list + */ +static void ms_get_serverlist(char *str) { + ms_mcd_server_t *srvs = NULL; + + /** + * Servers list format is like this. For example: + * "localhost:11108, localhost:11109" + */ + memcached_server_st *server_pool; + server_pool = memcached_servers_parse(str); + + for (uint32_t loop = 0; loop < memcached_server_list_count(server_pool); loop++) { + assert(ms_setting.srv_cnt < ms_setting.total_srv_cnt); + strcpy(ms_setting.servers[ms_setting.srv_cnt].srv_host_name, server_pool[loop].hostname); + ms_setting.servers[ms_setting.srv_cnt].srv_port = server_pool[loop].port; + ms_setting.servers[ms_setting.srv_cnt].disconn_cnt = 0; + ms_setting.servers[ms_setting.srv_cnt].reconn_cnt = 0; + ms_setting.srv_cnt++; + + if (ms_setting.srv_cnt >= ms_setting.total_srv_cnt) { + srvs = (ms_mcd_server_t *) realloc( + ms_setting.servers, (size_t) ms_setting.total_srv_cnt * sizeof(ms_mcd_server_t) * 2); + if (srvs == NULL) { + fprintf(stderr, "Can't reallocate servers structure.\n"); + exit(1); + } + ms_setting.servers = srvs; + ms_setting.total_srv_cnt *= 2; + } + } + + memcached_server_free(server_pool); +} /* ms_get_serverlist */ + +/** + * used to get the CPU count of the current system + * + * @return return the cpu count if get, else return EXIT_FAILURE + */ +static uint32_t ms_get_cpu_count() { +#ifdef HAVE__SC_NPROCESSORS_ONLN + return sysconf(_SC_NPROCESSORS_CONF); + +#else +# ifdef HAVE_CPU_SET_T + int cpu_count = 0; + cpu_set_t cpu_set; + + sched_getaffinity(0, sizeof(cpu_set_t), &cpu_set); + + for (int i = 0; i < (sizeof(cpu_set_t) * 8); i++) { + if (CPU_ISSET(i, &cpu_set)) { + cpu_count++; + } + } + + return cpu_count; + +# endif +#endif + + /* the system with one cpu at least */ + return EXIT_FAILURE; +} /* ms_get_cpu_count */ + +/** + * used to get the configure type based on the type string read + * from the configuration file. + * + * @param line, string of one line + * + * @return ms_conf_type_t + */ +ms_conf_type_t ms_get_conf_type(char *line) { + if (!memcmp(line, "key", strlen("key"))) { + return CONF_KEY; + } else if (!memcmp(line, "value", strlen("value"))) { + return CONF_VALUE; + } else if (!memcmp(line, "cmd", strlen("cmd"))) { + return CONF_CMD; + } else { + return CONF_NULL; + } +} /* ms_get_conf_type */ + +/** + * judge whether the line is a line with useful data. used to + * parse the configuration file. + * + * @param line, string of one line + * + * @return if success, return EXIT_FAILURE, else return EXIT_SUCCESS + */ +static int ms_is_line_data(char *line) { + assert(line); + + char *begin_ptr = line; + + while (isspace(*begin_ptr)) { + begin_ptr++; + } + if ((begin_ptr[0] == '\0') || (begin_ptr[0] == '#')) + return EXIT_SUCCESS; + + return EXIT_FAILURE; +} /* ms_is_line_data */ + +/** + * function to bypass blank line and comments + * + * @param line, string of one line + * @param nread, length of the line + * + * @return if it's EOF or not line data, return EXIT_SUCCESS, else return EXIT_FAILURE + */ +static int ms_read_is_data(char *line, ssize_t nread) { + if ((nread == EOF) || !ms_is_line_data(line)) + return EXIT_SUCCESS; + + return EXIT_FAILURE; +} /* ms_read_is_data */ + +/** + * if no configuration file, use this function to create the default + * configuration file. + */ +static void ms_no_config_file() { + char userpath[PATH_MAX]; + struct passwd *usr = NULL; + FILE *fd; + + usr = getpwuid(getuid()); + + snprintf(userpath, PATH_MAX, "%s/%s", usr->pw_dir, DEFAULT_CONFIG_NAME); + + if (access(userpath, F_OK | R_OK) == 0) + goto exit; + + fd = fopen(userpath, "w+"); + + if (fd == NULL) { + fprintf(stderr, "Could not create default configure file %s\n", userpath); + perror("fopen"); + exit(1); + } + fprintf(fd, "%s", DEFAULT_CONGIF_STR); + fclose(fd); + +exit: + ms_setting.cfg_file = strdup(userpath); +} /* ms_no_config_file */ + +/** + * parse the configuration file + * + * @param cfg_file, the configuration file name + */ +static void ms_parse_cfg_file(char *cfg_file) { + FILE *f; + size_t start_len, end_len; + double proportion; + char *line = NULL; + size_t read_len; + ssize_t nread; + int cmd_type; + ms_conf_type_t conf_type; + int end_of_file = 0; + ms_key_distr_t *key_distr = NULL; + ms_value_distr_t *val_distr = NULL; + + if (cfg_file == NULL) { + ms_no_config_file(); + cfg_file = ms_setting.cfg_file; + } + + /*read key value configure file*/ + if ((f = fopen(cfg_file, "r")) == NULL) { + fprintf(stderr, "Can not open file: '%s'.\n", cfg_file); + exit(1); + } + + while (1) { + if ((((nread = getline(&line, &read_len, f)) == 1) || !ms_read_is_data(line, nread)) + && (nread != EOF)) /* bypass blank line */ + continue; + + if (nread == EOF) { + fprintf(stderr, "Bad configuration file, no configuration find.\n"); + exit(1); + } + conf_type = ms_get_conf_type(line); + break; + } + + while (!end_of_file) { + switch (conf_type) { + case CONF_KEY: + while (1) { + if ((((nread = getline(&line, &read_len, f)) == 1) || !ms_read_is_data(line, nread)) + && (nread != EOF)) /* bypass blank line */ + continue; + + if (nread != EOF) { + if (sscanf(line, "%zu %zu %lf ", &start_len, &end_len, &proportion) != 3) { + conf_type = ms_get_conf_type(line); + break; + } + ms_setting.key_distr[ms_setting.key_rng_cnt].start_len = start_len; + ms_setting.key_distr[ms_setting.key_rng_cnt].end_len = end_len; + ms_setting.key_distr[ms_setting.key_rng_cnt].key_prop = proportion; + ms_setting.key_rng_cnt++; + + if (ms_setting.key_rng_cnt >= ms_setting.total_key_rng_cnt) { + key_distr = (ms_key_distr_t *) realloc(ms_setting.key_distr, + (size_t) ms_setting.total_key_rng_cnt + * sizeof(ms_key_distr_t) * 2); + if (key_distr == NULL) { + fprintf(stderr, "Can't reallocate key distribution structure.\n"); + exit(1); + } + ms_setting.key_distr = key_distr; + ms_setting.total_key_rng_cnt *= 2; + } + continue; + } + end_of_file = 1; + break; + } + break; + + case CONF_VALUE: + while (1) { + if ((((nread = getline(&line, &read_len, f)) == 1) || !ms_read_is_data(line, nread)) + && (nread != EOF)) /* bypass blank line */ + continue; + + if (nread != EOF) { + if (sscanf(line, "%zu %zu %lf", &start_len, &end_len, &proportion) != 3) { + conf_type = ms_get_conf_type(line); + break; + } + ms_setting.value_distr[ms_setting.val_rng_cnt].start_len = start_len; + ms_setting.value_distr[ms_setting.val_rng_cnt].end_len = end_len; + ms_setting.value_distr[ms_setting.val_rng_cnt].value_prop = proportion; + ms_setting.val_rng_cnt++; + + if (ms_setting.val_rng_cnt >= ms_setting.total_val_rng_cnt) { + val_distr = (ms_value_distr_t *) realloc(ms_setting.value_distr, + (size_t) ms_setting.total_val_rng_cnt + * sizeof(ms_value_distr_t) * 2); + if (val_distr == NULL) { + fprintf(stderr, "Can't reallocate key distribution structure.\n"); + exit(1); + } + ms_setting.value_distr = val_distr; + ms_setting.total_val_rng_cnt *= 2; + } + continue; + } + end_of_file = 1; + break; + } + break; + + case CONF_CMD: + while (1) { + if ((((nread = getline(&line, &read_len, f)) == 1) || !ms_read_is_data(line, nread)) + && (nread != EOF)) /* bypass blank line */ + continue; + + if (nread != EOF) { + if (sscanf(line, "%d %lf", &cmd_type, &proportion) != 2) { + conf_type = ms_get_conf_type(line); + break; + } + if (cmd_type >= CMD_NULL) { + continue; + } + ms_setting.cmd_distr[ms_setting.cmd_used_count].cmd_type = cmd_type; + ms_setting.cmd_distr[ms_setting.cmd_used_count].cmd_prop = proportion; + ms_setting.cmd_used_count++; + continue; + } + end_of_file = 1; + break; + } + + case CONF_NULL: + while (1) { + if ((((nread = getline(&line, &read_len, f)) == 1) || !ms_read_is_data(line, nread)) + && (nread != EOF)) /* bypass blank line */ + continue; + + if (nread != EOF) { + if ((conf_type = ms_get_conf_type(line)) != CONF_NULL) { + break; + } + continue; + } + end_of_file = 1; + break; + } + break; + + default: + assert(0); + break; + } /* switch */ + } + + fclose(f); + + if (line) { + free(line); + } +} /* ms_parse_cfg_file */ + +/* calculate the average size of key and value */ +static void ms_calc_avg_size() { + double avg_val_size = 0.0; + double avg_key_size = 0.0; + double val_pro = 0.0; + double key_pro = 0.0; + double averge_len = 0.0; + size_t start_len = 0; + size_t end_len = 0; + + for (int j = 0; j < ms_setting.val_rng_cnt; j++) { + val_pro = ms_setting.value_distr[j].value_prop; + start_len = ms_setting.value_distr[j].start_len; + end_len = ms_setting.value_distr[j].end_len; + + averge_len = val_pro * ((double) (start_len + end_len)) / 2; + avg_val_size += averge_len; + } + + for (int j = 0; j < ms_setting.key_rng_cnt; j++) { + key_pro = ms_setting.key_distr[j].key_prop; + start_len = ms_setting.key_distr[j].start_len; + end_len = ms_setting.key_distr[j].end_len; + + averge_len = key_pro * ((double) (start_len + end_len)) / 2; + avg_key_size += averge_len; + } + + ms_setting.avg_val_size = (size_t) avg_val_size; + ms_setting.avg_key_size = (size_t) avg_key_size; +} /* ms_calc_avg_size */ + +/** + * used to shuffle key and value distribution array to ensure + * (key, value) pair with different set. + * + * @param distr, pointer of distribution structure array + * @param length, length of the array + * + * @return always return EXIT_SUCCESS + */ +static int ms_shuffle_distr(ms_distr_t *distr, int length) { + int i, j; + int tmp_offset; + size_t tmp_size; + int64_t rnd; + + for (i = 0; i < length; i++) { + rnd = random(); + j = (int) (rnd % (length - i)) + i; + + switch (rnd % 3) { + case 0: + tmp_size = distr[j].key_size; + distr[j].key_size = distr[i].key_size; + distr[i].key_size = tmp_size; + break; + + case 1: + tmp_offset = distr[j].key_offset; + distr[j].key_offset = distr[i].key_offset; + distr[i].key_offset = tmp_offset; + break; + + case 2: + tmp_size = distr[j].value_size; + distr[j].value_size = distr[i].value_size; + distr[i].value_size = tmp_size; + break; + + default: + break; + } /* switch */ + } + + return EXIT_SUCCESS; +} /* ms_shuffle_distr */ + +/** + * according to the key and value distribution, to build the + * (key, value) pair distribution. the (key, value) pair + * distribution array is global, each connection set or get + * object keeping this distribution, for the final result, we + * can reach the expected key and value distribution. + */ +static void ms_build_distr() { + int offset = 0; + int end = 0; + int key_cnt = 0; + int value_cnt = 0; + size_t average_len = 0; + size_t diff_len = 0; + size_t start_len = 0; + size_t end_len = 0; + int rnd = 0; + ms_distr_t *distr = NULL; + int units = (int) ms_setting.win_size / UNIT_ITEMS_COUNT; + + /* calculate average value size and key size */ + ms_calc_avg_size(); + + ms_setting.char_blk_size = RAND_CHAR_SIZE; + int key_scope_size = + (int) ((ms_setting.char_blk_size - RESERVED_RAND_CHAR_SIZE) / UNIT_ITEMS_COUNT); + + ms_setting.distr = (ms_distr_t *) malloc(sizeof(ms_distr_t) * ms_setting.win_size); + if (ms_setting.distr == NULL) { + fprintf(stderr, "Can't allocate distribution array."); + exit(1); + } + + /** + * character block is divided by how many different key + * size, each different key size has the same size character + * range. + */ + for (int m = 0; m < units; m++) { + for (int i = 0; i < UNIT_ITEMS_COUNT; i++) { + ms_setting.distr[m * UNIT_ITEMS_COUNT + i].key_offset = ADDR_ALIGN(key_scope_size * i); + } + } + + /* initialize key size distribution */ + for (int m = 0; m < units; m++) { + for (int j = 0; j < ms_setting.key_rng_cnt; j++) { + key_cnt = (int) (UNIT_ITEMS_COUNT * ms_setting.key_distr[j].key_prop); + start_len = ms_setting.key_distr[j].start_len; + end_len = ms_setting.key_distr[j].end_len; + if ((start_len < MIN_KEY_SIZE) || (end_len < MIN_KEY_SIZE)) { + fprintf(stderr, "key length must be greater than 16 bytes.\n"); + exit(1); + } + + if (!ms_setting.binary_prot_ && ((start_len > MAX_KEY_SIZE) || (end_len > MAX_KEY_SIZE))) { + fprintf(stderr, "key length must be less than 250 bytes.\n"); + exit(1); + } + + average_len = (start_len + end_len) / 2; + diff_len = (end_len - start_len) / 2; + for (int k = 0; k < key_cnt; k++) { + if (offset >= (m + 1) * UNIT_ITEMS_COUNT) { + break; + } + rnd = (int) random(); + if (k % 2 == 0) { + ms_setting.distr[offset].key_size = + (diff_len == 0) ? average_len : average_len + (size_t) rnd % diff_len; + } else { + ms_setting.distr[offset].key_size = + (diff_len == 0) ? average_len : average_len - (size_t) rnd % diff_len; + } + offset++; + } + } + + if (offset < (m + 1) * UNIT_ITEMS_COUNT) { + end = (m + 1) * UNIT_ITEMS_COUNT - offset; + for (int i = 0; i < end; i++) { + ms_setting.distr[offset].key_size = ms_setting.avg_key_size; + offset++; + } + } + } + offset = 0; + + /* initialize value distribution */ + if (ms_setting.fixed_value_size) { + for (int i = 0; i < units * UNIT_ITEMS_COUNT; i++) { + ms_setting.distr[i].value_size = ms_setting.fixed_value_size; + } + } else { + for (int m = 0; m < units; m++) { + for (int j = 0; j < ms_setting.val_rng_cnt; j++) { + value_cnt = (int) (UNIT_ITEMS_COUNT * ms_setting.value_distr[j].value_prop); + start_len = ms_setting.value_distr[j].start_len; + end_len = ms_setting.value_distr[j].end_len; + if ((start_len <= 0) || (end_len <= 0)) { + fprintf(stderr, "value length must be greater than 0 bytes.\n"); + exit(1); + } + + if ((start_len > MAX_VALUE_SIZE) || (end_len > MAX_VALUE_SIZE)) { + fprintf(stderr, "key length must be less than or equal to 1M.\n"); + exit(1); + } + + average_len = (start_len + end_len) / 2; + diff_len = (end_len - start_len) / 2; + for (int k = 0; k < value_cnt; k++) { + if (offset >= (m + 1) * UNIT_ITEMS_COUNT) { + break; + } + rnd = (int) random(); + if (k % 2 == 0) { + ms_setting.distr[offset].value_size = + (diff_len == 0) ? average_len : average_len + (size_t) rnd % diff_len; + } else { + ms_setting.distr[offset].value_size = + (diff_len == 0) ? average_len : average_len - (size_t) rnd % diff_len; + } + offset++; + } + } + + if (offset < (m + 1) * UNIT_ITEMS_COUNT) { + end = (m + 1) * UNIT_ITEMS_COUNT - offset; + for (int i = 0; i < end; i++) { + ms_setting.distr[offset++].value_size = ms_setting.avg_val_size; + } + } + } + } + + /* shuffle distribution */ + for (int i = 0; i < units; i++) { + distr = &ms_setting.distr[i * UNIT_ITEMS_COUNT]; + for (int j = 0; j < 4; j++) { + ms_shuffle_distr(distr, UNIT_ITEMS_COUNT); + } + } +} /* ms_build_distr */ + +/** + * used to initialize the global character block. The character + * block is used to generate the suffix of the key and value. we + * only store a pointer in the character block for each key + * suffix or value string. It can save much memory to store key + * or value string. + */ +static void ms_init_random_block() { + char *ptr = NULL; + + assert(ms_setting.char_blk_size > 0); + + ms_setting.char_block = (char *) malloc(ms_setting.char_blk_size); + if (ms_setting.char_block == NULL) { + fprintf(stderr, "Can't allocate global char block."); + exit(1); + } + ptr = ms_setting.char_block; + + for (int i = 0; (size_t) i < ms_setting.char_blk_size; i++) { + *(ptr++) = ALPHANUMBERICS[random() % CHAR_COUNT]; + } +} /* ms_init_random_block */ + +/** + * after initialization, call this function to output the main + * configuration user specified. + */ +static void ms_print_setting() { + fprintf(stdout, "servers: %s\n", ms_setting.srv_str); + fprintf(stdout, "threads count: %d\n", ms_setting.nthreads); + fprintf(stdout, "concurrency: %d\n", ms_setting.nconns); + if (ms_setting.run_time > 0) { + fprintf(stdout, "run time: %ds\n", ms_setting.run_time); + } else { + fprintf(stdout, "execute number: %" PRId64 "\n", ms_setting.exec_num); + } + fprintf(stdout, "windows size: %" PRId64 "k\n", (int64_t)(ms_setting.win_size / 1024)); + fprintf(stdout, "set proportion: set_prop=%.2f\n", ms_setting.cmd_distr[CMD_SET].cmd_prop); + fprintf(stdout, "get proportion: get_prop=%.2f\n", ms_setting.cmd_distr[CMD_GET].cmd_prop); + fflush(stdout); +} /* ms_print_setting */ + +/** + * previous part of slap mode initialization of setting structure + */ +static void ms_setting_slapmode_init_pre() { + ms_setting.exec_num = DEFAULT_EXE_NUM; + ms_setting.verify_percent = DEFAULT_VERIFY_RATE; + ms_setting.exp_ver_per = DEFAULT_VERIFY_RATE; + ms_setting.overwrite_percent = DEFAULT_OVERWRITE_RATE; + ms_setting.mult_key_num = DEFAULT_DIV; + ms_setting.fixed_value_size = 0; + ms_setting.win_size = DEFAULT_WINDOW_SIZE; + ms_setting.udp = false; + ms_setting.reconnect = false; + ms_setting.verbose = false; + ms_setting.facebook_test = false; + ms_setting.binary_prot_ = false; + ms_setting.stat_freq = 0; + ms_setting.srv_str = NULL; + ms_setting.cfg_file = NULL; + ms_setting.sock_per_conn = DEFAULT_SOCK_PER_CONN; + ms_setting.expected_tps = 0; + ms_setting.rep_write_srv = 0; +} /* ms_setting_slapmode_init_pre */ + +/** + * previous part of initialization of setting structure + */ +void ms_setting_init_pre() { + memset(&ms_setting, 0, sizeof(ms_setting)); + + /* common initialize */ + ms_setting.ncpu = ms_get_cpu_count(); + ms_setting.nthreads = DEFAULT_THREADS_NUM; + ms_setting.nconns = DEFAULT_CONNS_NUM; + ms_setting.run_time = DEFAULT_RUN_TIME; + ms_setting.total_srv_cnt = MCD_SRVS_NUM_INIT; + ms_setting.servers = + (ms_mcd_server_t *) malloc((size_t) ms_setting.total_srv_cnt * sizeof(ms_mcd_server_t)); + if (ms_setting.servers == NULL) { + fprintf(stderr, "Can't allocate servers structure.\n"); + exit(1); + } + + ms_setting_slapmode_init_pre(); +} /* ms_setting_init_pre */ + +/** + * post part of slap mode initialization of setting structure + */ +static void ms_setting_slapmode_init_post() { + ms_setting.total_key_rng_cnt = KEY_RANGE_COUNT_INIT; + ms_setting.key_distr = + (ms_key_distr_t *) malloc((size_t) ms_setting.total_key_rng_cnt * sizeof(ms_key_distr_t)); + + if (ms_setting.key_distr == NULL) { + fprintf(stderr, "Can't allocate key distribution structure.\n"); + exit(1); + } + + ms_setting.total_val_rng_cnt = VALUE_RANGE_COUNT_INIT; + + ms_setting.value_distr = + (ms_value_distr_t *) malloc((size_t) ms_setting.total_val_rng_cnt * sizeof(ms_value_distr_t)); + + if (ms_setting.value_distr == NULL) { + fprintf(stderr, "Can't allocate value distribution structure.\n"); + exit(1); + } + + ms_parse_cfg_file(ms_setting.cfg_file); + + /* run time mode */ + if ((ms_setting.exec_num == 0) && (ms_setting.run_time)) { + ms_setting.exec_num = (int64_t) MAX_EXEC_NUM; + } else { + /* execute number mode */ + ms_setting.run_time = 0; + } + + if (ms_setting.rep_write_srv > 0) { + /* for replication test, need enable reconnect feature */ + ms_setting.reconnect = true; + } + + if (ms_setting.facebook_test && (ms_setting.mult_key_num < 2)) { + fprintf(stderr, + "facebook test must work with multi-get, " + "please specify multi-get key number " + "with '--division' option.\n"); + exit(1); + } + + if (ms_setting.facebook_test && ms_setting.udp) { + fprintf(stderr, "facebook test couldn't work with UDP.\n"); + exit(1); + } + + if (ms_setting.udp && (ms_setting.sock_per_conn > 1)) { + fprintf(stderr, + "UDP doesn't support multi-socks " + "in one connection structure.\n"); + exit(1); + } + + if ((ms_setting.rep_write_srv > 0) && (ms_setting.srv_cnt < 2)) { + fprintf(stderr, "Please specify 2 servers at least for replication\n"); + exit(1); + } + + if ((ms_setting.rep_write_srv > 0) && (ms_setting.srv_cnt < ms_setting.rep_write_srv)) { + fprintf(stderr, + "Servers to do replication writing " + "is larger than the total servers\n"); + exit(1); + } + + if (ms_setting.udp && (ms_setting.rep_write_srv > 0)) { + fprintf(stderr, "UDP doesn't support replication.\n"); + exit(1); + } + + if (ms_setting.facebook_test && (ms_setting.rep_write_srv > 0)) { + fprintf(stderr, "facebook test couldn't work with replication.\n"); + exit(1); + } + + ms_build_distr(); + + /* initialize global character block */ + ms_init_random_block(); + ms_print_setting(); +} /* ms_setting_slapmode_init_post */ + +/** + * post part of initialization of setting structure + */ +void ms_setting_init_post() { + ms_get_serverlist(ms_setting.srv_str); + ms_setting_slapmode_init_post(); +} + +/** + * clean up the global setting structure + */ +void ms_setting_cleanup() { + if (ms_setting.distr) { + free(ms_setting.distr); + } + + if (ms_setting.char_block) { + free(ms_setting.char_block); + } + + if (ms_setting.srv_str) { + free(ms_setting.srv_str); + } + + if (ms_setting.cfg_file) { + free(ms_setting.cfg_file); + } + + if (ms_setting.servers) { + free(ms_setting.servers); + } + + if (ms_setting.key_distr) { + free(ms_setting.key_distr); + } + + if (ms_setting.value_distr) { + free(ms_setting.value_distr); + } +} /* ms_setting_cleanup */ diff --git a/contrib/bin/memaslap/ms_setting.h b/contrib/bin/memaslap/ms_setting.h new file mode 100644 index 00000000..51cab2f7 --- /dev/null +++ b/contrib/bin/memaslap/ms_setting.h @@ -0,0 +1,165 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#ifndef MS_SETTING_H +#define MS_SETTING_H + +#include "ms_memslap.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define MCD_SRVS_NUM_INIT 8 +#define MCD_HOST_LENGTH 64 +#define KEY_RANGE_COUNT_INIT 8 +#define VALUE_RANGE_COUNT_INIT 8 +#define PROP_ERROR 0.001 + +#define MIN_KEY_SIZE 16 +#define MAX_KEY_SIZE 250 +#define MAX_VALUE_SIZE (1024 * 1024) + +/* the content of the configuration file for memslap running without configuration file */ +#define DEFAULT_CONGIF_STR \ + "key\n" \ + "64 64 1\n" \ + "value\n" \ + "1024 1024 1\n" \ + "cmd\n" \ + "0 0.1\n" \ + "1 0.9" + +/* Used to parse the value length return by server and path string */ +typedef struct token_s { + char *value; + size_t length; +} token_t; + +#define MAX_TOKENS 10 + +/* server information */ +typedef struct mcd_server { + char srv_host_name[MCD_HOST_LENGTH]; /* host name of server */ + int srv_port; /* server port */ + + /* for calculating how long the server disconnects */ + ATOMIC uint32_t disconn_cnt; /* number of disconnections count */ + ATOMIC uint32_t reconn_cnt; /* number of reconnections count */ + struct timeval disconn_time; /* start time of disconnection */ + struct timeval reconn_time; /* end time of reconnection */ +} ms_mcd_server_t; + +/* information of an item distribution including key and value */ +typedef struct distr { + size_t key_size; /* size of key */ + int key_offset; /* offset of one key in character block */ + size_t value_size; /* size of value */ +} ms_distr_t; + +/* information of key distribution */ +typedef struct key_distr { + size_t start_len; /* start of the key length range */ + size_t end_len; /* end of the key length range */ + double key_prop; /* key proportion */ +} ms_key_distr_t; + +/* information of value distribution */ +typedef struct value_distr { + size_t start_len; /* start of the value length range */ + size_t end_len; /* end of the value length range */ + double value_prop; /* value proportion */ +} ms_value_distr_t; + +/* memcached command types */ +typedef enum cmd_type { CMD_SET, CMD_GET, CMD_NULL } ms_cmd_type_t; + +/* types in the configuration file */ +typedef enum conf_type { CONF_KEY, CONF_VALUE, CONF_CMD, CONF_NULL } ms_conf_type_t; + +/* information of command distribution */ +typedef struct cmd_distr { + ms_cmd_type_t cmd_type; /* command type */ + double cmd_prop; /* proportion of the command */ +} ms_cmd_distr_t; + +/* global setting structure */ +typedef struct setting { + uint32_t ncpu; /* cpu count of this system */ + uint32_t nthreads; /* total thread count, must equal or less than cpu cores */ + uint32_t nconns; /* total conn count, must multiply by total thread count */ + int64_t exec_num; /* total execute number */ + int run_time; /* total run time */ + + uint32_t char_blk_size; /* global character block size */ + char *char_block; /* global character block with random character */ + ms_distr_t *distr; /* distribution from configure file */ + + char *srv_str; /* string includes servers information */ + char *cfg_file; /* configure file name */ + + ms_mcd_server_t *servers; /* servers array */ + uint32_t total_srv_cnt; /* total servers count of the servers array */ + uint32_t srv_cnt; /* servers count */ + + ms_key_distr_t *key_distr; /* array of key distribution */ + int total_key_rng_cnt; /* total key range count of the array */ + int key_rng_cnt; /* actual key range count */ + + ms_value_distr_t *value_distr; /* array of value distribution */ + int total_val_rng_cnt; /* total value range count of the array */ + int val_rng_cnt; /* actual value range count */ + + ms_cmd_distr_t cmd_distr[CMD_NULL]; /* total we have CMD_NULL commands */ + int cmd_used_count; /* supported command count */ + + size_t fixed_value_size; /* fixed value size */ + size_t avg_val_size; /* average value size */ + size_t avg_key_size; /* average value size */ + + double verify_percent; /* percent of data verification */ + double exp_ver_per; /* percent of data verification with expire time */ + double overwrite_percent; /* percent of overwrite */ + int mult_key_num; /* number of keys used by multi-get once */ + size_t win_size; /* item window size per connection */ + bool udp; /* whether or not use UDP */ + int stat_freq; /* statistic frequency second */ + bool reconnect; /* whether it reconnect when connection close */ + bool verbose; /* whether it outputs detailed information when verification */ + bool facebook_test; /* facebook test, TCP set and multi-get with UDP */ + uint32_t sock_per_conn; /* number of socks per connection structure */ + bool binary_prot_; /* whether it use binary protocol */ + int expected_tps; /* expected throughput */ + uint32_t rep_write_srv; /* which servers are used to do replication writing */ +} ms_setting_st; + +extern ms_setting_st ms_setting; + +/* previous part of initialization of setting structure */ +void ms_setting_init_pre(void); + +/* post part of initialization of setting structure */ +void ms_setting_init_post(void); + +/* clean up the global setting structure */ +void ms_setting_cleanup(void); + +#define UNUSED_ARGUMENT(x) (void) x + +#ifdef __cplusplus +} +#endif + +#endif /* end of MS_SETTING_H */ diff --git a/contrib/bin/memaslap/ms_sigsegv.c b/contrib/bin/memaslap/ms_sigsegv.c new file mode 100644 index 00000000..4c421489 --- /dev/null +++ b/contrib/bin/memaslap/ms_sigsegv.c @@ -0,0 +1,116 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#include "mem_config.h" + +#include +#include +#include +#include +#include + +#include "ms_memslap.h" +#include "ms_setting.h" + +/* prototypes */ +int ms_setup_sigsegv(void); +int ms_setup_sigpipe(void); +int ms_setup_sigint(void); + +/* signal seg reaches, this function will run */ +static void ms_signal_segv(int signum, siginfo_t *info, void *ptr) { + UNUSED_ARGUMENT(signum); + UNUSED_ARGUMENT(info); + UNUSED_ARGUMENT(ptr); + + pthread_mutex_lock(&ms_global.quit_mutex); + fprintf(stderr, "Segmentation fault occurred.\nStack trace:\n"); +#if 0 + pandora_print_callstack(stderr); +#endif + fprintf(stderr, "End of stack trace\n"); + pthread_mutex_unlock(&ms_global.quit_mutex); + abort(); +} + +/* signal int reaches, this function will run */ +static void ms_signal_int(int signum, siginfo_t *info, void *ptr) { + UNUSED_ARGUMENT(signum); + UNUSED_ARGUMENT(info); + UNUSED_ARGUMENT(ptr); + + pthread_mutex_lock(&ms_global.quit_mutex); + fprintf(stderr, "SIGINT handled.\n"); + pthread_mutex_unlock(&ms_global.quit_mutex); + exit(1); +} /* ms_signal_int */ + +/** + * redirect signal seg + * + * @return if success, return EXIT_SUCCESS, else return -1 + */ +int ms_setup_sigsegv(void) { + struct sigaction action; + + memset(&action, 0, sizeof(action)); + action.sa_sigaction = ms_signal_segv; + action.sa_flags = SA_SIGINFO; + if (sigaction(SIGSEGV, &action, NULL) < 0) { + perror("sigaction"); + return EXIT_SUCCESS; + } + + return -1; +} /* ms_setup_sigsegv */ + +/** + * redirect signal pipe + * + * @return if success, return EXIT_SUCCESS, else return -1 + */ +int ms_setup_sigpipe(void) { + /* ignore the SIGPIPE signal */ + signal(SIGPIPE, SIG_IGN); + + return -1; +} /* ms_setup_sigpipe */ + +/** + * redirect signal int + * + * @return if success, return EXIT_SUCCESS, else return -1 + */ +int ms_setup_sigint(void) { + struct sigaction action_3; + + memset(&action_3, 0, sizeof(action_3)); + action_3.sa_sigaction = ms_signal_int; + action_3.sa_flags = SA_SIGINFO; + if (sigaction(SIGINT, &action_3, NULL) < 0) { + perror("sigaction"); + return EXIT_SUCCESS; + } + + return -1; +} /* ms_setup_sigint */ + +#ifndef SIGSEGV_NO_AUTO_INIT +static void __attribute((constructor)) ms_init(void) { + ms_setup_sigsegv(); + ms_setup_sigpipe(); + ms_setup_sigint(); +} +#endif diff --git a/contrib/bin/memaslap/ms_sigsegv.h b/contrib/bin/memaslap/ms_sigsegv.h new file mode 100644 index 00000000..c990087c --- /dev/null +++ b/contrib/bin/memaslap/ms_sigsegv.h @@ -0,0 +1,36 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#ifndef MS_SIGSEGV_H +#define MS_SIGSEGV_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* redirect signal seg */ +int ms_setup_sigsegv(void); + +/* redirect signal pipe */ +int ms_setup_sigpipe(void); + +/* redirect signal int */ +int ms_setup_sigint(void); + +#ifdef __cplusplus +} +#endif + +#endif /* end of MS_SIGSEGV_H */ diff --git a/contrib/bin/memaslap/ms_stats.c b/contrib/bin/memaslap/ms_stats.c new file mode 100644 index 00000000..dce5ed8b --- /dev/null +++ b/contrib/bin/memaslap/ms_stats.c @@ -0,0 +1,245 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#include "mem_config.h" + +#include +#include "ms_stats.h" + +#define array_size(x) (sizeof(x) / sizeof((x)[0])) + +static int ms_local_log2(uint64_t value); +static uint64_t ms_get_events(ms_stat_t *stat); + +/** + * get the index of local log2 array + * + * @param value + * + * @return return the index of local log2 array + */ +static int ms_local_log2(uint64_t value) { + int result = 0; + + while (result <= 63 && ((uint64_t) 1 << result) < value) { + result++; + } + + return result; +} /* ms_local_log2 */ + +/** + * initialize statistic structure + * + * @param stat, pointer of the statistic structure + * @param name, name of the statistic + */ +void ms_init_stats(ms_stat_t *stat, const char *name) { + memset(stat, 0, sizeof(*stat)); + + stat->name = (char *) name; + stat->min_time = (uint64_t) -1; + stat->max_time = 0; + stat->period_min_time = (uint64_t) -1; + stat->period_max_time = 0; + stat->log_product = 0; + stat->total_time = 0; + stat->pre_total_time = 0; + stat->squares = 0; + stat->pre_squares = 0; + stat->pre_events = 0; + stat->pre_log_product = 0; + stat->get_miss = 0; + stat->pre_get_miss = 0; +} /* ms_init_stats */ + +/** + * record one event + * + * @param stat, pointer of the statistic structure + * @param total_time, response time of the command + * @param get_miss, whether it gets miss + */ +void ms_record_event(ms_stat_t *stat, uint64_t total_time, int get_miss) { + stat->total_time += total_time; + + if (total_time < stat->min_time) { + stat->min_time = total_time; + } + + if (total_time > stat->max_time) { + stat->max_time = total_time; + } + + if (total_time < stat->period_min_time) { + stat->period_min_time = total_time; + } + + if (total_time > stat->period_max_time) { + stat->period_max_time = total_time; + } + + if (get_miss) { + stat->get_miss++; + } + + stat->dist[ms_local_log2(total_time)]++; + stat->squares += (double) (total_time * total_time); + + if (total_time) { + stat->log_product += log((double) total_time); + } +} /* ms_record_event */ + +/** + * get the events count + * + * @param stat, pointer of the statistic structure + * + * @return total events recorded + */ +static uint64_t ms_get_events(ms_stat_t *stat) { + uint64_t events = 0; + + for (uint32_t i = 0; i < array_size(stat->dist); i++) { + events += stat->dist[i]; + } + + return events; +} /* ms_get_events */ + +/** + * dump the statistics + * + * @param stat, pointer of the statistic structure + */ +void ms_dump_stats(ms_stat_t *stat) { + uint64_t events = 0; + int max_non_zero = 0; + int min_non_zero = 0; + double average = 0; + + for (uint32_t i = 0; i < array_size(stat->dist); i++) { + events += stat->dist[i]; + if (stat->dist[i]) { + max_non_zero = (int) i; + } + } + + if (events == 0) { + return; + } + average = (double) (stat->total_time / events); + + printf("%s Statistics (%lld events)\n", stat->name, (long long) events); + printf(" Min: %8lld\n", (long long) stat->min_time); + printf(" Max: %8lld\n", (long long) stat->max_time); + printf(" Avg: %8lld\n", (long long) (stat->total_time / events)); + printf(" Geo: %8.2lf\n", exp(stat->log_product / (double) events)); + + if (events > 1) { + printf(" Std: %8.2lf\n", + sqrt((stat->squares - (double) events * average * average) / ((double) events - 1))); + } + printf(" Log2 Dist:"); + + for (int i = 0; i <= max_non_zero - 4; i += 4) { + if ((stat->dist[i + 0]) || (stat->dist[i + 1]) || (stat->dist[i + 2]) + || (stat->dist[i + 3])) + { + min_non_zero = i; + break; + } + } + + for (int i = min_non_zero; i <= max_non_zero; i++) { + if ((i % 4) == 0) { + printf("\n %2d:", (int) i); + } + printf(" %6" PRIu64, stat->dist[i]); + } + + printf("\n\n"); +} /* ms_dump_stats */ + +/** + * dump the format statistics + * + * @param stat, pointer of the statistic structure + * @param run_time, the total run time + * @param freq, statistic frequency + * @param obj_size, average object size + */ +void ms_dump_format_stats(ms_stat_t *stat, int run_time, int freq, int obj_size) { + uint64_t events = 0; + double global_average = 0; + uint64_t global_tps = 0; + double global_rate = 0; + double global_std = 0; + double global_log = 0; + + double period_average = 0; + uint64_t period_tps = 0; + double period_rate = 0; + double period_std = 0; + double period_log = 0; + + if ((events = ms_get_events(stat)) == 0) { + return; + } + + global_average = (double) (stat->total_time / events); + global_tps = events / (uint64_t) run_time; + global_rate = (double) events * obj_size / 1024 / 1024 / run_time; + global_std = sqrt((stat->squares - (double) events * global_average * global_average) + / (double) (events - 1)); + global_log = exp(stat->log_product / (double) events); + + uint64_t diff_time = stat->total_time - stat->pre_total_time; + uint64_t diff_events = events - stat->pre_events; + if (diff_events >= 1) { + period_average = (double) (diff_time / diff_events); + period_tps = diff_events / (uint64_t) freq; + period_rate = (double) diff_events * obj_size / 1024 / 1024 / freq; + double diff_squares = (double) stat->squares - (double) stat->pre_squares; + period_std = sqrt((diff_squares - (double) diff_events * period_average * period_average) + / (double) (diff_events - 1)); + double diff_log_product = stat->log_product - stat->pre_log_product; + period_log = exp(diff_log_product / (double) diff_events); + } + + printf("%s Statistics\n", stat->name); + printf("%-8s %-8s %-12s %-12s %-10s %-10s %-8s %-10s %-10s %-10s %-10s\n", "Type", "Time(s)", + "Ops", "TPS(ops/s)", "Net(M/s)", "Get_miss", "Min(us)", "Max(us)", "Avg(us)", "Std_dev", + "Geo_dist"); + + printf("%-8s %-8d %-12llu %-12lld %-10.1f %-10lld %-8lld %-10lld %-10lld %-10.2f %.2f\n", + "Period", freq, (long long) diff_events, (long long) period_tps, global_rate, + (long long) (stat->get_miss - stat->pre_get_miss), (long long) stat->period_min_time, + (long long) stat->period_max_time, (long long) period_average, period_std, period_log); + + printf("%-8s %-8d %-12llu %-12lld %-10.1f %-10lld %-8lld %-10lld %-10lld %-10.2f %.2f\n\n", + "Global", run_time, (long long) events, (long long) global_tps, period_rate, + (long long) stat->get_miss, (long long) stat->min_time, (long long) stat->max_time, + (long long) global_average, global_std, global_log); + + stat->pre_events = events; + stat->pre_squares = (uint64_t) stat->squares; + stat->pre_total_time = stat->total_time; + stat->pre_log_product = stat->log_product; + stat->period_min_time = (uint64_t) -1; + stat->period_max_time = 0; + stat->pre_get_miss = stat->get_miss; +} /* ms_dump_format_stats */ diff --git a/contrib/bin/memaslap/ms_stats.h b/contrib/bin/memaslap/ms_stats.h new file mode 100644 index 00000000..9d12a393 --- /dev/null +++ b/contrib/bin/memaslap/ms_stats.h @@ -0,0 +1,66 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#ifndef MS_STAT_H +#define MS_STAT_H + +#include +#include +#include +#include +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/* statistic structure of response time */ +typedef struct { + char *name; + uint64_t total_time; + uint64_t min_time; + uint64_t max_time; + uint64_t get_miss; + uint64_t dist[65]; + double squares; + double log_product; + + uint64_t period_min_time; + uint64_t period_max_time; + uint64_t pre_get_miss; + uint64_t pre_events; + uint64_t pre_total_time; + uint64_t pre_squares; + double pre_log_product; +} ms_stat_t; + +/* initialize statistic */ +void ms_init_stats(ms_stat_t *stat, const char *name); + +/* record one event */ +void ms_record_event(ms_stat_t *stat, uint64_t time, int get_miss); + +/* dump the statistics */ +void ms_dump_stats(ms_stat_t *stat); + +/* dump the format statistics */ +void ms_dump_format_stats(ms_stat_t *stat, int run_time, int freq, int obj_size); + +#ifdef __cplusplus +} +#endif + +#endif /* MS_STAT_H */ diff --git a/contrib/bin/memaslap/ms_task.c b/contrib/bin/memaslap/ms_task.c new file mode 100644 index 00000000..63d7fed8 --- /dev/null +++ b/contrib/bin/memaslap/ms_task.c @@ -0,0 +1,927 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#include "mem_config.h" + +#if defined(HAVE_SYS_TIME_H) +# include +#endif + +#if defined(HAVE_TIME_H) +# include +#endif + +#include "ms_thread.h" +#include "ms_setting.h" +#include "ms_atomic.h" + +/* command distribution adjustment cycle */ +#define CMD_DISTR_ADJUST_CYCLE 1000 +#define DISADJUST_FACTOR \ + 0.03 /** \ + * In one adjustment cycle, if undo set or get \ + * operations proportion is more than 3% , means \ + * there are too many new item or need more new \ + * item in the window. This factor shows it. \ + */ + +/* get item from task window */ +static ms_task_item_t *ms_get_cur_opt_item(ms_conn_t *c); +static ms_task_item_t *ms_get_next_get_item(ms_conn_t *c); +static ms_task_item_t *ms_get_next_set_item(ms_conn_t *c); +static ms_task_item_t *ms_get_random_overwrite_item(ms_conn_t *c); + +/* select next operation to do */ +static void ms_select_opt(ms_conn_t *c, ms_task_t *task); + +/* set and get speed estimate for controlling and adjustment */ +static bool ms_is_set_too_fast(ms_task_t *task); +static bool ms_is_get_too_fast(ms_task_t *task); +static void ms_kick_out_item(ms_task_item_t *item); + +/* miss rate adjustment */ +static bool ms_need_overwrite_item(ms_task_t *task); +static bool ms_adjust_opt(ms_conn_t *c, ms_task_t *task); + +/* deal with data verification initialization */ +static void ms_task_data_verify_init(ms_task_t *task); +static void ms_task_expire_verify_init(ms_task_t *task); + +/* select a new task to do */ +static ms_task_t *ms_get_task(ms_conn_t *c, bool warmup); + +/* run the selected task */ +static void ms_update_set_result(ms_conn_t *c, ms_task_item_t *item); +static void ms_update_stat_result(ms_conn_t *c); +static void ms_update_multi_get_result(ms_conn_t *c); +static void ms_update_single_get_result(ms_conn_t *c, ms_task_item_t *item); +static void ms_update_task_result(ms_conn_t *c); +static void ms_single_getset_task_sch(ms_conn_t *c); +static void ms_multi_getset_task_sch(ms_conn_t *c); +static void ms_send_signal(ms_sync_lock_t *sync_lock); +static void ms_warmup_server(ms_conn_t *c); +static int ms_run_getset_task(ms_conn_t *c); + +/** + * used to get the current operation item(object) + * + * @param c, pointer of the concurrency + * + * @return ms_task_item_t*, current operating item + */ +static ms_task_item_t *ms_get_cur_opt_item(ms_conn_t *c) { + return c->curr_task.item; +} + +/** + * used to get the next item to do get operation + * + * @param c, pointer of the concurrency + * + * @return ms_task_item_t*, the pointer of the next item to do + * get operation + */ +static ms_task_item_t *ms_get_next_get_item(ms_conn_t *c) { + ms_task_item_t *item = NULL; + + if (c->set_cursor <= 0) { + /* the first item in the window */ + item = &c->item_win[0]; + } else if (c->set_cursor > 0 && c->set_cursor < (uint32_t) c->win_size) { + /* random get one item set before */ + item = &c->item_win[random() % (int64_t) c->set_cursor]; + } else { + /* random get one item from the window */ + item = &c->item_win[random() % c->win_size]; + } + + return item; +} /* ms_get_next_get_item */ + +/** + * used to get the next item to do set operation + * + * @param c, pointer of the concurrency + * + * @return ms_task_item_t*, the pointer of the next item to do + * set operation + */ +static ms_task_item_t *ms_get_next_set_item(ms_conn_t *c) { + /** + * when a set command successes, the cursor will plus 1. If set + * fails, the cursor doesn't change. it isn't necessary to + * increase the cursor here. + */ + return &c->item_win[(int64_t) c->set_cursor % c->win_size]; +} + +/** + * If we need do overwrite, we could select a item set before. + * This function is used to get a item set before to do + * overwrite. + * + * @param c, pointer of the concurrency + * + * @return ms_task_item_t*, the pointer of the previous item of + * set operation + */ +static ms_task_item_t *ms_get_random_overwrite_item(ms_conn_t *c) { + return ms_get_next_get_item(c); +} /* ms_get_random_overwrite_item */ + +/** + * According to the proportion of operations(get or set), select + * an operation to do. + * + * @param c, pointer of the concurrency + * @param task, pointer of current task in the concurrency + */ +static void ms_select_opt(ms_conn_t *c, ms_task_t *task) { + double get_prop = ms_setting.cmd_distr[CMD_GET].cmd_prop; + double set_prop = ms_setting.cmd_distr[CMD_SET].cmd_prop; + + /* update cycle operation number if necessary */ + if ((task->cycle_undo_get == 0) || (task->cycle_undo_set == 0)) { + task->cycle_undo_get += (int) (CMD_DISTR_ADJUST_CYCLE * get_prop); + task->cycle_undo_set += (int) (CMD_DISTR_ADJUST_CYCLE * set_prop); + } + + /** + * According to operation distribution to choose doing which + * operation. If it can't set new object to sever, just change + * to do get operation. + */ + if ((set_prop > PROP_ERROR) + && ((double) task->get_opt * set_prop >= (double) task->set_opt * get_prop)) + { + task->cmd = CMD_SET; + task->item = ms_get_next_set_item(c); + } else { + task->cmd = CMD_GET; + task->item = ms_get_next_get_item(c); + } +} /* ms_select_opt */ + +/** + * used to judge whether the number of get operations done is + * more than expected number of get operations to do right now. + * + * @param task, pointer of current task in the concurrency + * + * @return bool, if get too fast, return true, else return false + */ +static bool ms_is_get_too_fast(ms_task_t *task) { + double get_prop = ms_setting.cmd_distr[CMD_GET].cmd_prop; + double set_prop = ms_setting.cmd_distr[CMD_SET].cmd_prop; + + /* no get operation */ + if (get_prop < PROP_ERROR) { + return false; + } + + int max_undo_set = (int) (set_prop / get_prop * (1.0 + DISADJUST_FACTOR)) * task->cycle_undo_get; + + if (((double) task->get_opt * set_prop > (double) task->set_opt * get_prop) + && (task->cycle_undo_set > max_undo_set)) + { + return true; + } + + return false; +} /* ms_is_get_too_fast */ + +/** + * used to judge whether the number of set operations done is + * more than expected number of set operations to do right now. + * + * @param task, pointer of current task in the concurrency + * + * @return bool, if set too fast, return true, else return false + */ +static bool ms_is_set_too_fast(ms_task_t *task) { + double get_prop = ms_setting.cmd_distr[CMD_GET].cmd_prop; + double set_prop = ms_setting.cmd_distr[CMD_SET].cmd_prop; + + /* no set operation */ + if (set_prop < PROP_ERROR) { + return false; + } + + /* If it does set operation too fast, skip some */ + int max_undo_get = + (int) ((get_prop / set_prop * (1.0 + DISADJUST_FACTOR)) * (double) task->cycle_undo_set); + + if (((double) task->get_opt * set_prop < (double) task->set_opt * get_prop) + && (task->cycle_undo_get > max_undo_get)) + { + return true; + } + + return false; +} /* ms_is_set_too_fast */ + +/** + * kick out the old item in the window, and add a new item to + * overwrite the old item. When we don't want to do overwrite + * object, and the current item to do set operation is an old + * item, we could kick out the old item and add a new item. Then + * we can ensure we set new object every time. + * + * @param item, pointer of task item which includes the object + * information + */ +static void ms_kick_out_item(ms_task_item_t *item) { + /* allocate a new item */ + item->key_prefix = ms_get_key_prefix(); + + item->key_suffix_offset++; + item->value_offset = INVALID_OFFSET; /* new item use invalid value offset */ + item->client_time = 0; +} /* ms_kick_out_item */ + +/** + * used to judge whether we need overwrite object based on the + * options user specified + * + * @param task, pointer of current task in the concurrency + * + * @return bool, if need overwrite, return true, else return + * false + */ +static bool ms_need_overwrite_item(ms_task_t *task) { + ms_task_item_t *item = task->item; + + assert(item); + assert(task->cmd == CMD_SET); + + /** + * according to data overwrite percent to determine if do data + * overwrite. + */ + if (task->overwrite_set < (double) task->set_opt * ms_setting.overwrite_percent) { + return true; + } + + return false; +} /* ms_need_overwirte_item */ + +/** + * used to adjust operation. the function must be called after + * select operation. the function change get operation to set + * operation, or set operation to get operation based on the + * current case. + * + * @param c, pointer of the concurrency + * @param task, pointer of current task in the concurrency + * + * @return bool, if success, return true, else return false + */ +static bool ms_adjust_opt(ms_conn_t *c, ms_task_t *task) { + ms_task_item_t *item = task->item; + + assert(item); + + if (task->cmd == CMD_SET) { + /* If did set operation too fast, skip some */ + if (ms_is_set_too_fast(task)) { + /* get the item instead */ + if (item->value_offset != INVALID_OFFSET) { + task->cmd = CMD_GET; + return true; + } + } + + /* If the current item is not a new item, kick it out */ + if (item->value_offset != INVALID_OFFSET) { + if (ms_need_overwrite_item(task)) { + /* overwrite */ + task->overwrite_set++; + } else { + /* kick out the current item to do set operation */ + ms_kick_out_item(item); + } + } else /* it's a new item */ { + /* need overwrite */ + if (ms_need_overwrite_item(task)) { + /** + * overwrite not use the item with current set cursor, revert + * set cursor. + */ + c->set_cursor--; + + item = ms_get_random_overwrite_item(c); + if (item->value_offset != INVALID_OFFSET) { + task->item = item; + task->overwrite_set++; + } else /* item is a new item */ { + /* select the item to run, and cancel overwrite */ + task->item = item; + } + } + } + task->cmd = CMD_SET; + return true; + } else { + if (item->value_offset == INVALID_OFFSET) { + task->cmd = CMD_SET; + return true; + } + + /** + * If It does get operation too fast, it will change the + * operation to set. + */ + if (ms_is_get_too_fast(task)) { + /* don't kick out the first item in the window */ + if (!ms_is_set_too_fast(task)) { + ms_kick_out_item(item); + task->cmd = CMD_SET; + return true; + } else { + return false; + } + } + + assert(item->value_offset != INVALID_OFFSET); + + task->cmd = CMD_GET; + return true; + } +} /* ms_adjust_opt */ + +/** + * used to initialize the task which need verify data. + * + * @param task, pointer of current task in the concurrency + */ +static void ms_task_data_verify_init(ms_task_t *task) { + ms_task_item_t *item = task->item; + + assert(item); + assert(task->cmd == CMD_GET); + + /** + * according to data verification percent to determine if do + * data verification. + */ + if (task->verified_get < (double) task->get_opt * ms_setting.verify_percent) { + /** + * currently it doesn't do verify, just increase the counter, + * and do verification next proper get command + */ + if ((task->item->value_offset != INVALID_OFFSET) && (item->exp_time == 0)) { + task->verify = true; + task->finish_verify = false; + task->verified_get++; + } + } +} /* ms_task_data_verify_init */ + +/** + * used to initialize the task which need verify expire time. + * + * @param task, pointer of current task in the concurrency + */ +static void ms_task_expire_verify_init(ms_task_t *task) { + ms_task_item_t *item = task->item; + + assert(item); + assert(task->cmd == CMD_GET); + assert(item->exp_time > 0); + + task->verify = true; + task->finish_verify = false; +} /* ms_task_expire_verify_init */ + +/** + * used to get one task, the function initializes the task + * structure. + * + * @param c, pointer of the concurrency + * @param warmup, whether it need warmup + * + * @return ms_task_t*, pointer of current task in the + * concurrency + */ +static ms_task_t *ms_get_task(ms_conn_t *c, bool warmup) { + ms_task_t *task = &c->curr_task; + + while (1) { + task->verify = false; + task->finish_verify = true; + task->get_miss = true; + + if (warmup) { + task->cmd = CMD_SET; + task->item = ms_get_next_set_item(c); + + return task; + } + + /* according to operation distribution to choose doing which operation */ + ms_select_opt(c, task); + + if (!ms_adjust_opt(c, task)) { + continue; + } + + if ((ms_setting.verify_percent > 0) && (task->cmd == CMD_GET)) { + ms_task_data_verify_init(task); + } + + if ((ms_setting.exp_ver_per > 0) && (task->cmd == CMD_GET) && (task->item->exp_time > 0)) { + ms_task_expire_verify_init(task); + } + + break; + } + + /** + * Only update get and delete counter, set counter will be + * updated after set operation successes. + */ + if (task->cmd == CMD_GET) { + task->get_opt++; + task->cycle_undo_get--; + } + + return task; +} /* ms_get_task */ + +/** + * send a signal to the main monitor thread + * + * @param sync_lock, pointer of the lock + */ +static void ms_send_signal(ms_sync_lock_t *sync_lock) { + pthread_mutex_lock(&sync_lock->lock); + sync_lock->count++; + pthread_cond_signal(&sync_lock->cond); + pthread_mutex_unlock(&sync_lock->lock); +} /* ms_send_signal */ + +/** + * If user only want to do get operation, but there is no object + * in server , so we use this function to warmup the server, and + * set some objects to server. It runs at the beginning of task. + * + * @param c, pointer of the concurrency + */ +static void ms_warmup_server(ms_conn_t *c) { + ms_task_t *task; + ms_task_item_t *item; + + /** + * Extra one loop to get the last command returned state. + * Normally it gets the previous command returned state. + */ + if ((c->remain_warmup_num >= 0) && (c->remain_warmup_num != c->warmup_num)) { + item = ms_get_cur_opt_item(c); + /* only update the set command result state for data verification */ + if ((c->precmd.cmd == CMD_SET) && (c->precmd.retstat == MCD_STORED)) { + item->value_offset = item->key_suffix_offset; + /* set success, update counter */ + c->set_cursor++; + } else if (c->precmd.cmd == CMD_SET && c->precmd.retstat != MCD_STORED) { + printf("key: %" PRIx64 " didn't set success\n", item->key_prefix); + } + } + + /* the last time don't run a task */ + if (c->remain_warmup_num-- > 0) { + /* operate next task item */ + task = ms_get_task(c, true); + item = task->item; + ms_mcd_set(c, item); + } + + /** + * finish warming up server, wait all connects initialize + * complete. Then all connects can start do task at the same + * time. + */ + if (c->remain_warmup_num == -1) { + ms_send_signal(&ms_global.warmup_lock); + c->remain_warmup_num--; /* never run the if branch */ + } +} /* ms_warmup_server */ + +/** + * dispatch single get and set task + * + * @param c, pointer of the concurrency + */ +static void ms_single_getset_task_sch(ms_conn_t *c) { + ms_task_t *task; + ms_task_item_t *item; + + /* the last time don't run a task */ + if (c->remain_exec_num-- > 0) { + task = ms_get_task(c, false); + item = task->item; + if (task->cmd == CMD_SET) { + ms_mcd_set(c, item); + } else if (task->cmd == CMD_GET) { + assert(task->cmd == CMD_GET); + ms_mcd_get(c, item); + } + } +} /* ms_single_getset_task_sch */ + +/** + * dispatch multi-get and set task + * + * @param c, pointer of the concurrency + */ +static void ms_multi_getset_task_sch(ms_conn_t *c) { + ms_task_t *task; + ms_mlget_task_item_t *mlget_item; + + while (1) { + if (c->remain_exec_num-- > 0) { + task = ms_get_task(c, false); + if (task->cmd == CMD_SET) /* just do it */ { + ms_mcd_set(c, task->item); + break; + } else { + assert(task->cmd == CMD_GET); + mlget_item = &c->mlget_task.mlget_item[c->mlget_task.mlget_num]; + mlget_item->item = task->item; + mlget_item->verify = task->verify; + mlget_item->finish_verify = task->finish_verify; + mlget_item->get_miss = task->get_miss; + c->mlget_task.mlget_num++; + + /* enough multi-get task items can be done */ + if ((c->mlget_task.mlget_num >= ms_setting.mult_key_num) + || ((c->remain_exec_num == 0) && (c->mlget_task.mlget_num > 0))) + { + ms_mcd_mlget(c); + break; + } + } + } else { + if ((c->remain_exec_num <= 0) && (c->mlget_task.mlget_num > 0)) { + ms_mcd_mlget(c); + } + break; + } + } +} /* ms_multi_getset_task_sch */ + +/** + * calculate the difference value of two time points + * + * @param start_time, the start time + * @param end_time, the end time + * + * @return uint64_t, the difference value between start_time and end_time in us + */ +int64_t ms_time_diff(struct timeval *start_time, struct timeval *end_time) { + int64_t endtime = end_time->tv_sec * 1000000 + end_time->tv_usec; + int64_t starttime = start_time->tv_sec * 1000000 + start_time->tv_usec; + + assert(endtime >= starttime); + + return endtime - starttime; +} /* ms_time_diff */ + +/** + * after get the response from server for multi-get, the + * function update the state of the task and do data verify if + * necessary. + * + * @param c, pointer of the concurrency + */ +static void ms_update_multi_get_result(ms_conn_t *c) { + ms_mlget_task_item_t *mlget_item; + ms_task_item_t *item; + char *orignval = NULL; + char *orignkey = NULL; + + if (c == NULL) { + return; + } + assert(c); + + for (int i = 0; i < c->mlget_task.mlget_num; i++) { + mlget_item = &c->mlget_task.mlget_item[i]; + item = mlget_item->item; + orignval = &ms_setting.char_block[item->value_offset]; + orignkey = &ms_setting.char_block[item->key_suffix_offset]; + + /* update get miss counter */ + if (mlget_item->get_miss) { + atomic_add_size(&ms_stats.get_misses, 1); + } + + /* get nothing from server for this task item */ + if (mlget_item->verify && !mlget_item->finish_verify) { + /* verify expire time if necessary */ + if (item->exp_time > 0) { + struct timeval curr_time; + gettimeofday(&curr_time, NULL); + + /* object doesn't expire but can't get it now */ + if (curr_time.tv_sec - item->client_time < item->exp_time - EXPIRE_TIME_ERROR) { + atomic_add_size(&ms_stats.unexp_unget, 1); + + if (ms_setting.verbose) { + char set_time[64]; + char cur_time[64]; + strftime(set_time, 64, "%Y-%m-%d %H:%M:%S", localtime(&item->client_time)); + strftime(cur_time, 64, "%Y-%m-%d %H:%M:%S", localtime(&curr_time.tv_sec)); + fprintf(stderr, + "\n\t<%d expire time verification failed, object " + "doesn't expire but can't get it now\n" + "\tkey len: %d\n" + "\tkey: %" PRIx64 " %.*s\n" + "\tset time: %s current time: %s " + "diff time: %d expire time: %d\n" + "\texpected data len: %d\n" + "\texpected data: %.*s\n" + "\treceived data: \n", + c->sfd, item->key_size, item->key_prefix, + item->key_size - (int) KEY_PREFIX_SIZE, orignkey, set_time, cur_time, + (int) (curr_time.tv_sec - item->client_time), item->exp_time, item->value_size, + item->value_size, orignval); + fflush(stderr); + } + } + } else { + atomic_add_size(&ms_stats.vef_miss, 1); + + if (ms_setting.verbose) { + fprintf(stderr, + "\n<%d data verification failed\n" + "\tkey len: %d\n" + "\tkey: %" PRIx64 " %.*s\n" + "\texpected data len: %d\n" + "\texpected data: %.*s\n" + "\treceived data: \n", + c->sfd, item->key_size, item->key_prefix, item->key_size - (int) KEY_PREFIX_SIZE, + orignkey, item->value_size, item->value_size, orignval); + fflush(stderr); + } + } + } + } + c->mlget_task.mlget_num = 0; + c->mlget_task.value_index = INVALID_OFFSET; +} /* ms_update_multi_get_result */ + +/** + * after get the response from server for single get, the + * function update the state of the task and do data verify if + * necessary. + * + * @param c, pointer of the concurrency + * @param item, pointer of task item which includes the object + * information + */ +static void ms_update_single_get_result(ms_conn_t *c, ms_task_item_t *item) { + char *orignval = NULL; + char *orignkey = NULL; + + if ((c == NULL) || (item == NULL)) { + return; + } + assert(c); + assert(item); + + orignval = &ms_setting.char_block[item->value_offset]; + orignkey = &ms_setting.char_block[item->key_suffix_offset]; + + /* update get miss counter */ + if ((c->precmd.cmd == CMD_GET) && c->curr_task.get_miss) { + atomic_add_size(&ms_stats.get_misses, 1); + } + + /* get nothing from server for this task item */ + if ((c->precmd.cmd == CMD_GET) && c->curr_task.verify && !c->curr_task.finish_verify) { + /* verify expire time if necessary */ + if (item->exp_time > 0) { + struct timeval curr_time; + gettimeofday(&curr_time, NULL); + + /* object doesn't expire but can't get it now */ + if (curr_time.tv_sec - item->client_time < item->exp_time - EXPIRE_TIME_ERROR) { + atomic_add_size(&ms_stats.unexp_unget, 1); + + if (ms_setting.verbose) { + char set_time[64]; + char cur_time[64]; + strftime(set_time, 64, "%Y-%m-%d %H:%M:%S", localtime(&item->client_time)); + strftime(cur_time, 64, "%Y-%m-%d %H:%M:%S", localtime(&curr_time.tv_sec)); + fprintf(stderr, + "\n\t<%d expire time verification failed, object " + "doesn't expire but can't get it now\n" + "\tkey len: %d\n" + "\tkey: %" PRIx64 " %.*s\n" + "\tset time: %s current time: %s " + "diff time: %d expire time: %d\n" + "\texpected data len: %d\n" + "\texpected data: %.*s\n" + "\treceived data: \n", + c->sfd, item->key_size, item->key_prefix, item->key_size - (int) KEY_PREFIX_SIZE, + orignkey, set_time, cur_time, (int) (curr_time.tv_sec - item->client_time), + item->exp_time, item->value_size, item->value_size, orignval); + fflush(stderr); + } + } + } else { + atomic_add_size(&ms_stats.vef_miss, 1); + + if (ms_setting.verbose) { + fprintf(stderr, + "\n<%d data verification failed\n" + "\tkey len: %d\n" + "\tkey: %" PRIx64 " %.*s\n" + "\texpected data len: %d\n" + "\texpected data: %.*s\n" + "\treceived data: \n", + c->sfd, item->key_size, item->key_prefix, item->key_size - (int) KEY_PREFIX_SIZE, + orignkey, item->value_size, item->value_size, orignval); + fflush(stderr); + } + } + } +} /* ms_update_single_get_result */ + +/** + * after get the response from server for set the function + * update the state of the task and do data verify if necessary. + * + * @param c, pointer of the concurrency + * @param item, pointer of task item which includes the object + * information + */ +static void ms_update_set_result(ms_conn_t *c, ms_task_item_t *item) { + if ((c == NULL) || (item == NULL)) { + return; + } + assert(c); + assert(item); + + if (c->precmd.cmd == CMD_SET) { + switch (c->precmd.retstat) { + case MCD_STORED: + if (item->value_offset == INVALID_OFFSET) { + /* first set with the same offset of key suffix */ + item->value_offset = item->key_suffix_offset; + } else { + /* not first set, just increase the value offset */ + item->value_offset += 1; + } + + /* set successes, update counter */ + c->set_cursor++; + c->curr_task.set_opt++; + c->curr_task.cycle_undo_set--; + break; + + case MCD_SERVER_ERROR: + default: + break; + } /* switch */ + } +} /* ms_update_set_result */ + +/** + * update the response time result + * + * @param c, pointer of the concurrency + */ +static void ms_update_stat_result(ms_conn_t *c) { + bool get_miss = false; + + if (c == NULL) { + return; + } + assert(c); + + gettimeofday(&c->end_time, NULL); + uint64_t time_diff = (uint64_t) ms_time_diff(&c->start_time, &c->end_time); + + pthread_mutex_lock(&ms_statistic.stat_mutex); + + switch (c->precmd.cmd) { + case CMD_SET: + ms_record_event(&ms_statistic.set_stat, time_diff, false); + break; + + case CMD_GET: + if (c->curr_task.get_miss) { + get_miss = true; + } + ms_record_event(&ms_statistic.get_stat, time_diff, get_miss); + break; + + default: + break; + } /* switch */ + + ms_record_event(&ms_statistic.total_stat, time_diff, get_miss); + pthread_mutex_unlock(&ms_statistic.stat_mutex); +} /* ms_update_stat_result */ + +/** + * after get response from server for the current operation, and + * before doing the next operation, update the state of the + * current operation. + * + * @param c, pointer of the concurrency + */ +static void ms_update_task_result(ms_conn_t *c) { + ms_task_item_t *item; + + if (c == NULL) { + return; + } + assert(c); + + item = ms_get_cur_opt_item(c); + if (item == NULL) { + return; + } + assert(item); + + ms_update_set_result(c, item); + + if ((ms_setting.stat_freq > 0) && ((c->precmd.cmd == CMD_SET) || (c->precmd.cmd == CMD_GET))) { + ms_update_stat_result(c); + } + + /* update multi-get task item */ + if (((ms_setting.mult_key_num > 1) && (c->mlget_task.mlget_num >= ms_setting.mult_key_num)) + || ((c->remain_exec_num == 0) && (c->mlget_task.mlget_num > 0))) + { + ms_update_multi_get_result(c); + } else { + ms_update_single_get_result(c, item); + } +} /* ms_update_task_result */ + +/** + * run get and set operation + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_run_getset_task(ms_conn_t *c) { + /** + * extra one loop to get the last command return state. get the + * last command return state. + */ + if ((c->remain_exec_num >= 0) && (c->remain_exec_num != c->exec_num)) { + ms_update_task_result(c); + } + + /* multi-get */ + if (ms_setting.mult_key_num > 1) { + /* operate next task item */ + ms_multi_getset_task_sch(c); + } else { + /* operate next task item */ + ms_single_getset_task_sch(c); + } + + /* no task to do, exit */ + if ((c->remain_exec_num == -1) || ms_global.time_out) { + return -1; + } + + return EXIT_SUCCESS; +} /* ms_run_getset_task */ + +/** + * the state machine call the function to execute task. + * + * @param c, pointer of the concurrency + * + * @return int, if success, return EXIT_SUCCESS, else return -1 + */ +int ms_exec_task(struct conn *c) { + if (!ms_global.finish_warmup) { + ms_warmup_server(c); + } else { + if (ms_run_getset_task(c)) { + return -1; + } + } + + return EXIT_SUCCESS; +} /* ms_exec_task */ diff --git a/contrib/bin/memaslap/ms_task.h b/contrib/bin/memaslap/ms_task.h new file mode 100644 index 00000000..add33f4b --- /dev/null +++ b/contrib/bin/memaslap/ms_task.h @@ -0,0 +1,93 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#ifndef MS_TASK_H +#define MS_TASK_H + +#include +#include +#if !defined(__cplusplus) +# include +#endif +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#define UNIT_ITEMS_COUNT 1024 /* each window unit has 1024 items */ +#define KEY_PREFIX_SIZE (sizeof(uint64_t)) /* key prefix length: 8 bytes */ +#define INVALID_OFFSET (-1) /* invalid offset in the character table */ +#define FIXED_EXPIRE_TIME 60 /* default expire time is 60s */ +#define EXPIRE_TIME_ERROR 5 /* default expire time error is 5s */ + +/* information of a task item(object) */ +typedef struct task_item { + uint64_t key_prefix; /* prefix of the key, 8 bytes, binary */ + int key_size; /* key size */ + int key_suffix_offset; /* suffix offset in the global character table */ + + int value_size; /* data size */ + int value_offset; /* data offset in the global character table */ + + time_t client_time; /* the current client time */ + int exp_time; /* expire time */ +} ms_task_item_t; + +/* task item for multi-get */ +typedef struct mlget_task_item { + ms_task_item_t *item; /* task item */ + bool verify; /* whether verify data or not */ + bool finish_verify; /* whether finish data verify or not */ + bool get_miss; /* whether get miss or not */ +} ms_mlget_task_item_t; + +/* information of multi-get task */ +typedef struct mlget_task { + ms_mlget_task_item_t *mlget_item; /* multi-get task array */ + int mlget_num; /* how many tasks in mlget_task array */ + int value_index; /* the nth value received by the connect, for multi-get */ +} ms_mlget_task_t; + +/* structure used to store the state of the running task */ +typedef struct task { + int cmd; /* command name */ + bool verify; /* whether verify data or not */ + bool finish_verify; /* whether finish data verify or not */ + bool get_miss; /* whether get miss or not */ + ms_task_item_t *item; /* task item */ + + /* counter for command distribution adjustment */ + uint64_t get_opt; /* number of total get operations */ + uint64_t set_opt; /* number of total set operations, no including warmup set count */ + int cycle_undo_get; /* number of undo get in an adjustment cycle */ + int cycle_undo_set; /* number of undo set in an adjustment cycle */ + uint64_t verified_get; /* number of total verified get operations */ + uint64_t overwrite_set; /* number of total overwrite set operations */ +} ms_task_t; + +struct conn; + +/* the state machine call the function to execute task.*/ +int ms_exec_task(struct conn *c); + +/* calculate the difference value of two time points */ +int64_t ms_time_diff(struct timeval *start_time, struct timeval *end_time); + +#ifdef __cplusplus +} +#endif + +#endif /* end of MS_TASK_H */ diff --git a/contrib/bin/memaslap/ms_thread.c b/contrib/bin/memaslap/ms_thread.c new file mode 100644 index 00000000..1d960cfa --- /dev/null +++ b/contrib/bin/memaslap/ms_thread.c @@ -0,0 +1,303 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#include "mem_config.h" + +#if defined(HAVE_SYS_TIME_H) +# include +#endif + +#if defined(HAVE_TIME_H) +# include +#endif + +#include "ms_thread.h" +#include "ms_setting.h" +#include "ms_atomic.h" + +/* global variable */ +pthread_key_t ms_thread_key; + +/* array of thread context structure, each thread has a thread context structure */ +static ms_thread_ctx_t *ms_thread_ctx; + +/* functions */ +static void ms_set_current_time(void); +static void ms_check_sock_timeout(void); +static void ms_clock_handler(const int fd, const short which, void *arg); +static uint32_t ms_set_thread_cpu_affinity(uint32_t cpu); +static int ms_setup_thread(ms_thread_ctx_t *thread_ctx); +static void *ms_worker_libevent(void *arg); +static void ms_create_worker(void *(*func)(void *), ms_thread_ctx_t *arg); + +/** + * time-sensitive callers can call it by hand with this, + * outside the normal ever-1-second timer + */ +static void ms_set_current_time() { + struct timeval timer; + ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); + + gettimeofday(&timer, NULL); + ms_thread->curr_time = (rel_time_t) timer.tv_sec; +} /* ms_set_current_time */ + +/** + * used to check whether UDP of command are waiting timeout + * by the ever-1-second timer + */ +static void ms_check_sock_timeout(void) { + ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); + ms_conn_t *c = NULL; + int time_diff = 0; + + for (uint32_t i = 0; i < ms_thread->thread_ctx->nconns; i++) { + c = &ms_thread->conn[i]; + + if (c->udp) { + time_diff = (int) (ms_thread->curr_time - (rel_time_t) c->start_time.tv_sec); + + /* wait time out */ + if (time_diff > SOCK_WAIT_TIMEOUT) { + /* calculate dropped packets count */ + if (c->recvpkt > 0) { + atomic_add_size(&ms_stats.pkt_drop, c->packets - c->recvpkt); + } + + atomic_add_size(&ms_stats.udp_timeout, 1); + ms_reset_conn(c, true); + } + } + } +} /* ms_check_sock_timeout */ + +/* if disconnect, the ever-1-second timer will call this function to reconnect */ +static void ms_reconn_thread_socks(void) { + ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); + for (uint32_t i = 0; i < ms_thread->thread_ctx->nconns; i++) { + ms_reconn_socks(&ms_thread->conn[i]); + } +} /* ms_reconn_thread_socks */ + +/** + * the handler of the ever-1-second timer + * + * @param fd, the descriptors of the socket + * @param which, event flags + * @param arg, argument + */ +static void ms_clock_handler(const int fd, const short which, void *arg) { + ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); + struct timeval t = {.tv_sec = 1, .tv_usec = 0}; + + UNUSED_ARGUMENT(fd); + UNUSED_ARGUMENT(which); + UNUSED_ARGUMENT(arg); + + ms_set_current_time(); + + if (ms_thread->initialized) { + /* only delete the event if it's actually there. */ + evtimer_del(&ms_thread->clock_event); + ms_check_sock_timeout(); + } else { + ms_thread->initialized = true; + } + + ms_reconn_thread_socks(); + + evtimer_set(&ms_thread->clock_event, ms_clock_handler, 0); + event_base_set(ms_thread->base, &ms_thread->clock_event); + evtimer_add(&ms_thread->clock_event, &t); +} /* ms_clock_handler */ + +/** + * used to bind thread to CPU if the system supports + * + * @param cpu, cpu index + * + * @return if success, return EXIT_SUCCESS, else return -1 + */ +static uint32_t ms_set_thread_cpu_affinity(uint32_t cpu) { + uint32_t ret = 0; + +#ifdef HAVE_CPU_SET_T + cpu_set_t cpu_set; + CPU_ZERO(&cpu_set); + CPU_SET(cpu, &cpu_set); + + if (sched_setaffinity(0, sizeof(cpu_set_t), &cpu_set) == -1) { + fprintf(stderr, "WARNING: Could not set CPU Affinity, continuing...\n"); + ret = 1; + } +#else + UNUSED_ARGUMENT(cpu); +#endif + + return ret; +} /* ms_set_thread_cpu_affinity */ + +/** + * Set up a thread's information. + * + * @param thread_ctx, pointer of the thread context structure + * + * @return if success, return EXIT_SUCCESS, else return -1 + */ +static int ms_setup_thread(ms_thread_ctx_t *thread_ctx) { + ms_thread_t *ms_thread = (ms_thread_t *) calloc(sizeof(*ms_thread), 1); + pthread_setspecific(ms_thread_key, (void *) ms_thread); + + ms_thread->thread_ctx = thread_ctx; + ms_thread->nactive_conn = thread_ctx->nconns; + ms_thread->initialized = false; + static ATOMIC uint32_t cnt = 0; + + gettimeofday(&ms_thread->startup_time, NULL); + + ms_thread->base = event_base_new(); + if (ms_thread->base == NULL) { + if (atomic_add_32_nv(&cnt, 1) == 0) { + fprintf(stderr, "Can't allocate event base.\n"); + } + + return -1; + } + + ms_thread->conn = (ms_conn_t *) malloc((size_t) thread_ctx->nconns * sizeof(ms_conn_t)); + if (ms_thread->conn == NULL) { + if (atomic_add_32_nv(&cnt, 1) == 0) { + fprintf(stderr, "Can't allocate concurrency structure for thread descriptors."); + } + + return -1; + } + memset(ms_thread->conn, 0, (size_t) thread_ctx->nconns * sizeof(ms_conn_t)); + + for (uint32_t i = 0; i < thread_ctx->nconns; i++) { + ms_thread->conn[i].conn_idx = i; + if (ms_setup_conn(&ms_thread->conn[i])) { + /* only output this error once */ + if (atomic_add_32_nv(&cnt, 1) == 0) { + fprintf(stderr, "Initializing connection failed.\n"); + } + + return -1; + } + } + + return EXIT_SUCCESS; +} /* ms_setup_thread */ + +/** + * Worker thread: main event loop + * + * @param arg, the pointer of argument + * + * @return void* + */ +static void *ms_worker_libevent(void *arg) { + ms_thread_t *ms_thread = NULL; + ms_thread_ctx_t *thread_ctx = (ms_thread_ctx_t *) arg; + + /** + * If system has more than one cpu and supports set cpu + * affinity, try to bind each thread to a cpu core; + */ + if (ms_setting.ncpu > 1) { + ms_set_thread_cpu_affinity(thread_ctx->thd_idx % ms_setting.ncpu); + } + + if (ms_setup_thread(thread_ctx)) { + exit(1); + } + + /* each thread with a timer */ + ms_clock_handler(0, 0, 0); + + pthread_mutex_lock(&ms_global.init_lock.lock); + ms_global.init_lock.count++; + pthread_cond_signal(&ms_global.init_lock.cond); + pthread_mutex_unlock(&ms_global.init_lock.lock); + + ms_thread = pthread_getspecific(ms_thread_key); + event_base_loop(ms_thread->base, 0); + event_base_free(ms_thread->base); + free(ms_thread); + + return NULL; +} /* ms_worker_libevent */ + +/** + * Creates a worker thread. + * + * @param func, the callback function + * @param arg, the argument to pass to the callback function + */ +static void ms_create_worker(void *(*func)(void *), ms_thread_ctx_t *arg) { + pthread_attr_t attr; + int ret; + + pthread_attr_init(&attr); + + if ((ret = pthread_create(&arg->pth_id, &attr, func, arg))) { + fprintf(stderr, "Can't create thread: %s.\n", strerror(ret)); + exit(1); + } +} /* ms_create_worker */ + +/* initialize threads */ +void ms_thread_init() { + ms_thread_ctx = + (ms_thread_ctx_t *) malloc(sizeof(ms_thread_ctx_t) * (size_t) ms_setting.nthreads); + if (ms_thread_ctx == NULL) { + fprintf(stderr, "Can't allocate thread descriptors."); + exit(1); + } + + for (uint32_t i = 0; i < ms_setting.nthreads; i++) { + ms_thread_ctx[i].thd_idx = i; + ms_thread_ctx[i].nconns = ms_setting.nconns / ms_setting.nthreads; + + /** + * If only one server, all the connections in all threads + * connects the same server. For support multi-servers, simple + * distribute thread to server. + */ + ms_thread_ctx[i].srv_idx = i % ms_setting.srv_cnt; + ms_thread_ctx[i].tps_perconn = ms_setting.expected_tps / (int) ms_setting.nconns; + ms_thread_ctx[i].exec_num_perconn = ms_setting.exec_num / ms_setting.nconns; + } + + if (pthread_key_create(&ms_thread_key, NULL)) { + fprintf(stderr, "Can't create pthread keys. Major malfunction!\n"); + exit(1); + } + /* Create threads after we've done all the epoll setup. */ + for (uint32_t i = 0; i < ms_setting.nthreads; i++) { + ms_create_worker(ms_worker_libevent, &ms_thread_ctx[i]); + } +} /* ms_thread_init */ + +/* cleanup some resource of threads when all the threads exit */ +void ms_thread_cleanup() { + for (uint32_t i = 0; i < ms_setting.nthreads; i++) { + pthread_join(ms_thread_ctx[i].pth_id, NULL); + } + if (ms_thread_ctx) { + free(ms_thread_ctx); + } + pthread_key_delete(ms_thread_key); +} /* ms_thread_cleanup */ diff --git a/contrib/bin/memaslap/ms_thread.h b/contrib/bin/memaslap/ms_thread.h new file mode 100644 index 00000000..3c49c56f --- /dev/null +++ b/contrib/bin/memaslap/ms_thread.h @@ -0,0 +1,65 @@ +/* + +--------------------------------------------------------------------+ + | libmemcached - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#ifndef MS_THREAD_H +#define MS_THREAD_H + +#include +#include +#include "ms_conn.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** Time relative to server start. Smaller than time_t on 64-bit systems. */ +typedef unsigned int rel_time_t; + +/* Used to store the context of each thread */ +typedef struct thread_ctx { + uint32_t thd_idx; /* the thread index */ + uint32_t nconns; /* how many connections included by the thread */ + uint32_t srv_idx; /* index of the thread */ + int tps_perconn; /* expected throughput per connection */ + int64_t exec_num_perconn; /* execute number per connection */ + pthread_t pth_id; +} ms_thread_ctx_t; + +/* Used to store the private variables of each thread */ +typedef struct thread { + ms_conn_t *conn; /* conn array to store all the conn in the thread */ + uint32_t nactive_conn; /* how many connects are active */ + + ms_thread_ctx_t *thread_ctx; /* thread context from the caller */ + struct event_base *base; /* libevent handler created by this thread */ + + rel_time_t curr_time; /* current time */ + struct event clock_event; /* clock event to time each one second */ + bool initialized; /* whether clock_event has been initialized */ + + struct timeval startup_time; /* start time of the thread */ +} ms_thread_t; + +/* initialize threads */ +void ms_thread_init(void); + +/* cleanup some resource of threads when all the threads exit */ +void ms_thread_cleanup(void); + +#ifdef __cplusplus +} +#endif + +#endif /* end of MS_THREAD_H */ diff --git a/src/bin/CMakeLists.txt b/src/bin/CMakeLists.txt index 0dea2a88..187b9cef 100644 --- a/src/bin/CMakeLists.txt +++ b/src/bin/CMakeLists.txt @@ -22,7 +22,3 @@ target_sources(memcapable PRIVATE ../libmemcached/byteorder.cc) target_link_libraries(memcapable PRIVATE Threads::Threads) target_link_libraries(memping PRIVATE libmemcachedutil) target_link_libraries(memslap PRIVATE Threads::Threads) - -# contrib - -add_subdirectory(contrib) diff --git a/src/bin/contrib/CMakeLists.txt b/src/bin/contrib/CMakeLists.txt deleted file mode 100644 index adc7af8a..00000000 --- a/src/bin/contrib/CMakeLists.txt +++ /dev/null @@ -1,24 +0,0 @@ -if(HAVE_MEMASLAP) - add_executable(memaslap memaslap.c - memaslap/ms_conn.c - memaslap/ms_setting.c - memaslap/ms_sigsegv.c - memaslap/ms_stats.c - memaslap/ms_task.c - memaslap/ms_thread.c) - target_include_directories(memaslap PRIVATE - memaslap - ${CMAKE_SOURCE_DIR}/include - ${CMAKE_BINARY_DIR}/include - ${CMAKE_SOURCE_DIR}/src - ${CMAKE_BINARY_DIR}/src - ${CMAKE_BINARY_DIR}) - target_link_libraries(memaslap PUBLIC libmemcached Threads::Threads ${LIBEVENT} m) - set_property(TARGET memaslap PROPERTY C_STANDARD 11) - if(CMAKE_INSTALL_RPATH) - set_target_properties(${CLIENT} PROPERTIES - INSTALL_RPATH ${CMAKE_INSTALL_RPATH}/../${CMAKE_INSTALL_LIBDIR}) - endif() - install(TARGETS memaslap - RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}) -endif() diff --git a/src/bin/contrib/memaslap.c b/src/bin/contrib/memaslap.c deleted file mode 100644 index d7573eb5..00000000 --- a/src/bin/contrib/memaslap.c +++ /dev/null @@ -1,778 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#include "mem_config.h" - -#include -#include -#include -#include -#include - -#if defined(HAVE_SYS_TIME_H) -# include -#endif - -#if defined(HAVE_TIME_H) -# include -#endif - -#include "ms_atomic.h" -#include "ms_sigsegv.h" -#include "ms_setting.h" -#include "ms_thread.h" - -/* global structure */ -ms_global_t ms_global; - -/* global stats information structure */ -ms_stats_t ms_stats; - -/* global statistic structure */ -ms_statistic_t ms_statistic; - -#define PROGRAM_NAME "memaslap" -#define PROGRAM_DESCRIPTION "Generates workload against memcached servers." - -#ifdef __sun -/* For some odd reason the option struct on solaris defines the argument - * as char* and not const char* - */ -# define OPTIONSTRING char * -#else -# define OPTIONSTRING const char * -#endif - -/* options */ -static struct option long_options[] = { - {(OPTIONSTRING) "servers", required_argument, NULL, OPT_SERVERS}, - {(OPTIONSTRING) "threads", required_argument, NULL, OPT_THREAD_NUMBER}, - {(OPTIONSTRING) "concurrency", required_argument, NULL, OPT_CONCURRENCY}, - {(OPTIONSTRING) "conn_sock", required_argument, NULL, OPT_SOCK_PER_CONN}, - {(OPTIONSTRING) "execute_number", required_argument, NULL, OPT_EXECUTE_NUMBER}, - {(OPTIONSTRING) "time", required_argument, NULL, OPT_TIME}, - {(OPTIONSTRING) "cfg_cmd", required_argument, NULL, OPT_CONFIG_CMD}, - {(OPTIONSTRING) "win_size", required_argument, NULL, OPT_WINDOW_SIZE}, - {(OPTIONSTRING) "fixed_size", required_argument, NULL, OPT_FIXED_LTH}, - {(OPTIONSTRING) "verify", required_argument, NULL, OPT_VERIFY}, - {(OPTIONSTRING) "division", required_argument, NULL, OPT_GETS_DIVISION}, - {(OPTIONSTRING) "stat_freq", required_argument, NULL, OPT_STAT_FREQ}, - {(OPTIONSTRING) "exp_verify", required_argument, NULL, OPT_EXPIRE}, - {(OPTIONSTRING) "overwrite", required_argument, NULL, OPT_OVERWRITE}, - {(OPTIONSTRING) "reconnect", no_argument, NULL, OPT_RECONNECT}, - {(OPTIONSTRING) "udp", no_argument, NULL, OPT_UDP}, - {(OPTIONSTRING) "facebook", no_argument, NULL, OPT_FACEBOOK_TEST}, - {(OPTIONSTRING) "binary", no_argument, NULL, OPT_BINARY_PROTOCOL}, - {(OPTIONSTRING) "tps", required_argument, NULL, OPT_TPS}, - {(OPTIONSTRING) "rep_write", required_argument, NULL, OPT_REP_WRITE_SRV}, - {(OPTIONSTRING) "verbose", no_argument, NULL, OPT_VERBOSE}, - {(OPTIONSTRING) "help", no_argument, NULL, OPT_HELP}, - {(OPTIONSTRING) "version", no_argument, NULL, OPT_VERSION}, - {0, 0, 0, 0}, -}; - -/* Prototypes */ -static void ms_sync_lock_init(void); -static void ms_sync_lock_destroy(void); -static void ms_global_struct_init(void); -static void ms_global_struct_destroy(void); -static void ms_version_command(const char *command_name); -static const char *ms_lookup_help(ms_options_t option); -static int64_t ms_parse_time(void); -static int64_t ms_parse_size(void); -static void ms_options_parse(int argc, char *argv[]); -static int ms_check_para(void); -static void ms_statistic_init(void); -static void ms_stats_init(void); -static void ms_print_statistics(int in_time); -static void ms_print_memaslap_stats(struct timeval *start_time, struct timeval *end_time); -static void ms_monitor_slap_mode(void); - -/** - * output the help information - * - * @param command_name, the string of this process - * @param description, description of this process - * @param long_options, global options array - */ -static void ms_help_command(const char *command_name, const char *description) { - char *help_message = NULL; - - printf("%s v%u.%u\n", command_name, 1U, 0U); - printf(" %s\n\n", description); - printf("Usage:\n" - " memaslap -hV | -s servers [-F config_file] [-t time | -x exe_num] [...]\n\n" - "Options:\n"); - - for (int x = 0; long_options[x].name; x++) { - printf(" -%c, --%s%c\n", long_options[x].val, long_options[x].name, - long_options[x].has_arg ? '=' : ' '); - - if ((help_message = (char *) ms_lookup_help(long_options[x].val))) { - printf(" %s\n", help_message); - } - } - - printf("\nExamples:\n" - " memaslap -s 127.0.0.1:11211 -S 5s\n" - " memaslap -s 127.0.0.1:11211 -t 2m -v 0.2 -e 0.05 -b\n" - " memaslap -s 127.0.0.1:11211 -F config -t 2m -w 40k -S 20s -o 0.2\n" - " memaslap -s 127.0.0.1:11211 -F config -t 2m -T 4 -c 128 -d 20 -P 40k\n" - " memaslap -s 127.0.0.1:11211 -F config -t 2m -d 50 -a -n 40\n" - " memaslap -s 127.0.0.1:11211,127.0.0.1:11212 -F config -t 2m\n" - " memaslap -s 127.0.0.1:11211,127.0.0.1:11212 -F config -t 2m -p 2\n\n"); -} /* ms_help_command */ - -/* initialize the global locks */ -static void ms_sync_lock_init() { - ms_global.init_lock.count = 0; - pthread_mutex_init(&ms_global.init_lock.lock, NULL); - pthread_cond_init(&ms_global.init_lock.cond, NULL); - - ms_global.warmup_lock.count = 0; - pthread_mutex_init(&ms_global.warmup_lock.lock, NULL); - pthread_cond_init(&ms_global.warmup_lock.cond, NULL); - - ms_global.run_lock.count = 0; - pthread_mutex_init(&ms_global.run_lock.lock, NULL); - pthread_cond_init(&ms_global.run_lock.cond, NULL); - - pthread_mutex_init(&ms_global.quit_mutex, NULL); - pthread_mutex_init(&ms_global.seq_mutex, NULL); -} /* ms_sync_lock_init */ - -/* destroy the global locks */ -static void ms_sync_lock_destroy() { - pthread_mutex_destroy(&ms_global.init_lock.lock); - pthread_cond_destroy(&ms_global.init_lock.cond); - - pthread_mutex_destroy(&ms_global.warmup_lock.lock); - pthread_cond_destroy(&ms_global.warmup_lock.cond); - - pthread_mutex_destroy(&ms_global.run_lock.lock); - pthread_cond_destroy(&ms_global.run_lock.cond); - - pthread_mutex_destroy(&ms_global.quit_mutex); - pthread_mutex_destroy(&ms_global.seq_mutex); - - if (ms_setting.stat_freq > 0) { - pthread_mutex_destroy(&ms_statistic.stat_mutex); - } -} /* ms_sync_lock_destroy */ - -/* initialize the global structure */ -static void ms_global_struct_init() { - ms_sync_lock_init(); - ms_global.finish_warmup = false; - ms_global.time_out = false; -} - -/* destroy the global structure */ -static void ms_global_struct_destroy() { - ms_sync_lock_destroy(); -} - -/** - * output the version information - * - * @param command_name, the string of this process - */ -static void ms_version_command(const char *command_name) { - printf("%s v%u.%u\n", command_name, 1U, 0U); - exit(0); -} - -/** - * get the description of the option - * - * @param option, option of command line - * - * @return char*, description of the command option - */ -static const char *ms_lookup_help(ms_options_t option) { - switch (option) { - case OPT_SERVERS: - return "List one or more servers to connect. Servers count must be less than\n" - " threads count. e.g.: --servers=localhost:1234,localhost:11211"; - - case OPT_VERSION: - return "Display the version of the application and then exit."; - - case OPT_HELP: - return "Display this message and then exit."; - - case OPT_EXECUTE_NUMBER: - return "Number of operations(get and set) to execute for the\n" - " given test. Default 1000000."; - - case OPT_THREAD_NUMBER: - return "Number of threads to startup, better equal to CPU numbers. Default 8."; - - case OPT_CONCURRENCY: - return "Number of concurrency to simulate with load. Default 128."; - - case OPT_FIXED_LTH: - return "Fixed length of value."; - - case OPT_VERIFY: - return "The proportion of date verification, e.g.: --verify=0.01"; - - case OPT_GETS_DIVISION: - return "Number of keys to multi-get once. Default 1, means single get."; - - case OPT_TIME: - return "How long the test to run, suffix: s-seconds, m-minutes, h-hours,\n" - " d-days e.g.: --time=2h."; - - case OPT_CONFIG_CMD: - return "Load the configure file to get command,key and value distribution list."; - - case OPT_WINDOW_SIZE: - return "Task window size of each concurrency, suffix: K, M e.g.: --win_size=10k.\n" - " Default 10k."; - - case OPT_UDP: - return "UDP support, by default memaslap uses TCP; TCP port and UDP port of\n" - " server must be same."; - - case OPT_EXPIRE: - return "The proportion of objects with expire time, e.g.: --exp_verify=0.01.\n" - " Default no object with expire time"; - - case OPT_OVERWRITE: - return "The proportion of objects need overwrite, e.g.: --overwrite=0.01.\n" - " Default never overwrite object."; - - case OPT_STAT_FREQ: - return "Frequency of dumping statistic information. suffix: s-seconds,\n" - " m-minutes, e.g.: --resp_freq=10s."; - - case OPT_SOCK_PER_CONN: - return "Number of TCP socks per concurrency. Default 1."; - - case OPT_RECONNECT: - return "Reconnect support, when connection is closed it will be reconnected."; - - case OPT_VERBOSE: - return "Whether it outputs detailed information when verification fails."; - - case OPT_FACEBOOK_TEST: - return "Whether it enables facebook test feature, set with TCP and multi-get with UDP."; - - case OPT_BINARY_PROTOCOL: - return "Whether it enables binary protocol. Default with ASCII protocol."; - - case OPT_TPS: - return "Expected throughput, suffix: K, e.g.: --tps=10k."; - - case OPT_REP_WRITE_SRV: - return "The first nth servers can write data, e.g.: --rep_write=2."; - - default: - return "Forgot to document this option :)"; - } /* switch */ -} /* ms_lookup_help */ - -/* used to parse the time string */ -static int64_t ms_parse_time() { - int64_t ret = 0; - char unit = optarg[strlen(optarg) - 1]; - - optarg[strlen(optarg) - 1] = '\0'; - ret = atoi(optarg); - - switch (unit) { - case 'd': - case 'D': - ret *= 24; - /* fall through */ - case 'h': - case 'H': - ret *= 60; - /* fall through */ - case 'm': - case 'M': - ret *= 60; - /* fall through */ - case 's': - case 'S': - break; - - default: - ret = -1; - break; - } /* switch */ - - return ret; -} /* ms_parse_time */ - -/* used to parse the size string */ -static int64_t ms_parse_size() { - int64_t ret = -1; - char unit = optarg[strlen(optarg) - 1]; - - optarg[strlen(optarg) - 1] = '\0'; - errno = 0; - ret = strtoll(optarg, (char **) NULL, 10); - if (errno) { - fprintf(stderr, "strtoll(optarg,..): %s\n", strerror(errno)); - exit(1); - } - - switch (unit) { - case 'k': - case 'K': - ret *= 1024; - break; - - case 'm': - case 'M': - ret *= 1024 * 1024; - break; - - case 'g': - case 'G': - ret *= 1024 * 1024 * 1024; - break; - - default: - ret = -1; - break; - } /* switch */ - - return ret; -} /* ms_parse_size */ - -/* used to parse the options of command line */ -static void ms_options_parse(int argc, char *argv[]) { - int option_index = 0; - int option_rv; - - while ((option_rv = getopt_long(argc, argv, - "VhURbaBs:x:T:c:X:v:d:" - "t:S:F:w:e:o:n:P:p:", - long_options, &option_index)) - != -1) - { - switch (option_rv) { - case 0: - break; - - case OPT_VERSION: /* --version or -V */ - ms_version_command(PROGRAM_NAME); - break; - - case OPT_HELP: /* --help or -h */ - ms_help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION); - exit(0); - break; - - case OPT_SERVERS: /* --servers or -s */ - ms_setting.srv_str = strdup(optarg); - break; - - case OPT_CONCURRENCY: /* --concurrency or -c */ - errno = 0; - ms_setting.nconns = (uint32_t) strtoul(optarg, (char **) NULL, 10); - if (ms_setting.nconns <= 0 || errno) { - fprintf(stderr, "Concurrency must be greater than 0.:-)\n"); - exit(1); - } - break; - - case OPT_EXECUTE_NUMBER: /* --execute_number or -x */ - errno = 0; - ms_setting.exec_num = (int) strtol(optarg, (char **) NULL, 10); - if (ms_setting.exec_num <= 0 || errno) { - fprintf(stderr, "Execute number must be greater than 0.:-)\n"); - exit(1); - } - break; - - case OPT_THREAD_NUMBER: /* --threads or -T */ - errno = 0; - ms_setting.nthreads = (uint32_t) strtoul(optarg, (char **) NULL, 10); - if (ms_setting.nthreads <= 0 || errno) { - fprintf(stderr, "Threads number must be greater than 0.:-)\n"); - exit(1); - } - break; - - case OPT_FIXED_LTH: /* --fixed_size or -X */ - errno = 0; - ms_setting.fixed_value_size = (size_t) strtoull(optarg, (char **) NULL, 10); - if ((ms_setting.fixed_value_size <= 0 || errno) - || (ms_setting.fixed_value_size > MAX_VALUE_SIZE)) - { - fprintf(stderr, "Value size must be between 0 and 1M.:-)\n"); - exit(1); - } - break; - - case OPT_VERIFY: /* --verify or -v */ - ms_setting.verify_percent = atof(optarg); - if ((ms_setting.verify_percent <= 0) || (ms_setting.verify_percent > 1.0)) { - fprintf(stderr, - "Data verification rate must be " - "greater than 0 and less than 1.0. :-)\n"); - exit(1); - } - break; - - case OPT_GETS_DIVISION: /* --division or -d */ - errno = 0; - ms_setting.mult_key_num = (int) strtol(optarg, (char **) NULL, 10); - if (ms_setting.mult_key_num <= 0 || errno) { - fprintf(stderr, "Multi-get key number must be greater than 0.:-)\n"); - exit(1); - } - break; - - case OPT_TIME: /* --time or -t */ - ms_setting.run_time = (int) ms_parse_time(); - if (ms_setting.run_time == -1) { - fprintf(stderr, - "Please specify the run time. :-)\n" - "'s' for second, 'm' for minute, 'h' for hour, " - "'d' for day. e.g.: --time=24h (means 24 hours).\n"); - exit(1); - } - - if (ms_setting.run_time == 0) { - fprintf(stderr, "Running time can not be 0. :-)\n"); - exit(1); - } - break; - - case OPT_CONFIG_CMD: /* --cfg_cmd or -F */ - ms_setting.cfg_file = strdup(optarg); - break; - - case OPT_WINDOW_SIZE: /* --win_size or -w */ - ms_setting.win_size = (size_t) ms_parse_size(); - if (ms_setting.win_size == (size_t) -1) { - fprintf(stderr, - "Please specify the item window size. :-)\n" - "e.g.: --win_size=10k (means 10k task window size).\n"); - exit(1); - } - break; - - case OPT_UDP: /* --udp or -U*/ - ms_setting.udp = true; - break; - - case OPT_EXPIRE: /* --exp_verify or -e */ - ms_setting.exp_ver_per = atof(optarg); - if ((ms_setting.exp_ver_per <= 0) || (ms_setting.exp_ver_per > 1.0)) { - fprintf(stderr, - "Expire time verification rate must be " - "greater than 0 and less than 1.0. :-)\n"); - exit(1); - } - break; - - case OPT_OVERWRITE: /* --overwrite or -o */ - ms_setting.overwrite_percent = atof(optarg); - if ((ms_setting.overwrite_percent <= 0) || (ms_setting.overwrite_percent > 1.0)) { - fprintf(stderr, - "Objects overwrite rate must be " - "greater than 0 and less than 1.0. :-)\n"); - exit(1); - } - break; - - case OPT_STAT_FREQ: /* --stat_freq or -S */ - ms_setting.stat_freq = (int) ms_parse_time(); - if (ms_setting.stat_freq == -1) { - fprintf(stderr, - "Please specify the frequency of dumping " - "statistic information. :-)\n" - "'s' for second, 'm' for minute, 'h' for hour, " - "'d' for day. e.g.: --time=24h (means 24 hours).\n"); - exit(1); - } - - if (ms_setting.stat_freq == 0) { - fprintf(stderr, - "The frequency of dumping statistic information " - "can not be 0. :-)\n"); - exit(1); - } - break; - - case OPT_SOCK_PER_CONN: /* --conn_sock or -n */ - errno = 0; - ms_setting.sock_per_conn = (uint32_t) strtoul(optarg, (char **) NULL, 10); - if (ms_setting.sock_per_conn <= 0 || errno) { - fprintf(stderr, - "Number of socks of each concurrency " - "must be greater than 0.:-)\n"); - exit(1); - } - break; - - case OPT_RECONNECT: /* --reconnect or -R */ - ms_setting.reconnect = true; - break; - - case OPT_VERBOSE: /* --verbose or -b */ - ms_setting.verbose = true; - break; - - case OPT_FACEBOOK_TEST: /* --facebook or -a */ - ms_setting.facebook_test = true; - break; - - case OPT_BINARY_PROTOCOL: /* --binary or -B */ - ms_setting.binary_prot_ = true; - break; - - case OPT_TPS: /* --tps or -P */ - ms_setting.expected_tps = (int) ms_parse_size(); - if (ms_setting.expected_tps == -1) { - fprintf(stderr, - "Please specify the item expected throughput. :-)\n" - "e.g.: --tps=10k (means 10k throughput).\n"); - exit(1); - } - break; - - case OPT_REP_WRITE_SRV: /* --rep_write or -p */ - errno = 0; - ms_setting.rep_write_srv = (uint32_t) strtoul(optarg, (char **) NULL, 10); - if (ms_setting.rep_write_srv <= 0 || errno) { - fprintf(stderr, - "Number of replication writing server must be greater " - "than 0.:-)\n"); - exit(1); - } - break; - - case '?': - /* getopt_long already printed an error message. */ - exit(1); - - default: - abort(); - } /* switch */ - } -} /* ms_options_parse */ - -static int ms_check_para() { - if (ms_setting.srv_str == NULL) { - char *temp; - - if ((temp = getenv("MEMCACHED_SERVERS"))) { - ms_setting.srv_str = strdup(temp); - } else { - fprintf(stderr, "No servers provided\n\n"); - return -1; - } - } - - if (ms_setting.nconns % (uint32_t) ms_setting.nthreads) { - fprintf(stderr, "Concurrency must be the multiples of threads count.\n"); - return -1; - } - - if (ms_setting.win_size % UNIT_ITEMS_COUNT) { - fprintf(stderr, "Window size must be the multiples of 1024.\n\n"); - return -1; - } - - return EXIT_SUCCESS; -} /* ms_check_para */ - -/* initialize the statistic structure */ -static void ms_statistic_init() { - pthread_mutex_init(&ms_statistic.stat_mutex, NULL); - ms_init_stats(&ms_statistic.get_stat, "Get"); - ms_init_stats(&ms_statistic.set_stat, "Set"); - ms_init_stats(&ms_statistic.total_stat, "Total"); -} /* ms_statistic_init */ - -/* initialize the global state structure */ -static void ms_stats_init() { - memset(&ms_stats, 0, sizeof(ms_stats_t)); - if (ms_setting.stat_freq > 0) { - ms_statistic_init(); - } -} /* ms_stats_init */ - -/* use to output the statistic */ -static void ms_print_statistics(int in_time) { - int obj_size = (int) (ms_setting.avg_key_size + ms_setting.avg_val_size); - - printf("\033[1;1H\033[2J\n"); - ms_dump_format_stats(&ms_statistic.get_stat, in_time, ms_setting.stat_freq, obj_size); - ms_dump_format_stats(&ms_statistic.set_stat, in_time, ms_setting.stat_freq, obj_size); - ms_dump_format_stats(&ms_statistic.total_stat, in_time, ms_setting.stat_freq, obj_size); -} /* ms_print_statistics */ - -/* used to print the states of memaslap */ -static void ms_print_memaslap_stats(struct timeval *start_time, struct timeval *end_time) { - char buf[0x2000]; - char *pos = buf; - - pos += snprintf(pos, sizeof(buf), "cmd_get: %lu\n", (unsigned long) ms_stats.cmd_get); - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "cmd_set: %lu\n", - (unsigned long) ms_stats.cmd_set); - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "get_misses: %lu\n", - (unsigned long) ms_stats.get_misses); - - if (ms_setting.verify_percent > 0) { - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "verify_misses: %lu\n", - (unsigned long) ms_stats.vef_miss); - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "verify_failed: %lu\n", - (unsigned long) ms_stats.vef_failed); - } - - if (ms_setting.exp_ver_per > 0) { - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "expired_get: %lu\n", - (unsigned long) ms_stats.exp_get); - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "unexpired_unget: %lu\n", - (unsigned long) ms_stats.unexp_unget); - } - - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "written_bytes: %lu\n", - (unsigned long) ms_stats.bytes_written); - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "read_bytes: %lu\n", - (unsigned long) ms_stats.bytes_read); - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "object_bytes: %lu\n", - (unsigned long) ms_stats.obj_bytes); - - if (ms_setting.udp || ms_setting.facebook_test) { - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "packet_disorder: %lu\n", - (unsigned long) ms_stats.pkt_disorder); - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "packet_drop: %lu\n", - (unsigned long) ms_stats.pkt_drop); - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), "udp_timeout: %lu\n", - (unsigned long) ms_stats.udp_timeout); - } - - if (ms_setting.stat_freq > 0) { - ms_dump_stats(&ms_statistic.get_stat); - ms_dump_stats(&ms_statistic.set_stat); - ms_dump_stats(&ms_statistic.total_stat); - } - - int64_t time_diff = ms_time_diff(start_time, end_time); - pos += snprintf(pos, sizeof(buf) - (size_t)(pos - buf), - "\nRun time: %.1fs Ops: %llu TPS: %.0Lf Net_rate: %.1fM/s\n", - (double) time_diff / 1000000, - (unsigned long long) (ms_stats.cmd_get + ms_stats.cmd_set), - (ms_stats.cmd_get + ms_stats.cmd_set) / ((long double) time_diff / 1000000), - (double) (ms_stats.bytes_written + ms_stats.bytes_read) / 1024 / 1024 - / ((double) time_diff / 1000000)); - assert(pos <= (buf + sizeof(buf))); - - fwrite(buf, 1, pos - buf, stdout); - fflush(stdout); -} /* ms_print_memaslap_stats */ - -/* the loop of the main thread, wait the work threads to complete */ -static void ms_monitor_slap_mode() { - struct timeval start_time, end_time; - - /* Wait all the threads complete initialization. */ - pthread_mutex_lock(&ms_global.init_lock.lock); - while (ms_global.init_lock.count < ms_setting.nthreads) { - pthread_cond_wait(&ms_global.init_lock.cond, &ms_global.init_lock.lock); - } - pthread_mutex_unlock(&ms_global.init_lock.lock); - - /* only when there is no set operation it need warm up */ - if (ms_setting.cmd_distr[CMD_SET].cmd_prop < PROP_ERROR) { - /* Wait all the connects complete warm up. */ - pthread_mutex_lock(&ms_global.warmup_lock.lock); - while (ms_global.warmup_lock.count < ms_setting.nconns) { - pthread_cond_wait(&ms_global.warmup_lock.cond, &ms_global.warmup_lock.lock); - } - pthread_mutex_unlock(&ms_global.warmup_lock.lock); - } - ms_global.finish_warmup = true; - - /* running in "run time" mode, user specify run time */ - if (ms_setting.run_time > 0) { - int second = 0; - gettimeofday(&start_time, NULL); - while (1) { - sleep(1); - second++; - - if ((ms_setting.stat_freq > 0) && (second % ms_setting.stat_freq == 0) - && (ms_stats.active_conns >= ms_setting.nconns) && (ms_stats.active_conns <= INT_MAX)) - { - ms_print_statistics(second); - } - - if (ms_setting.run_time <= second) { - ms_global.time_out = true; - break; - } - - /* all connections disconnect */ - if ((second > 5) && (ms_stats.active_conns == 0)) { - break; - } - } - gettimeofday(&end_time, NULL); - sleep(1); /* wait all threads clean up */ - } else { - /* running in "execute number" mode, user specify execute number */ - gettimeofday(&start_time, NULL); - - /* - * We loop until we know that all connects have cleaned up. - */ - pthread_mutex_lock(&ms_global.run_lock.lock); - while (ms_global.run_lock.count < ms_setting.nconns) { - pthread_cond_wait(&ms_global.run_lock.cond, &ms_global.run_lock.lock); - } - pthread_mutex_unlock(&ms_global.run_lock.lock); - - gettimeofday(&end_time, NULL); - } - - ms_print_memaslap_stats(&start_time, &end_time); -} /* ms_monitor_slap_mode */ - -/* the main function */ -int main(int argc, char *argv[]) { - srandom((unsigned int) time(NULL)); - ms_global_struct_init(); - - /* initialization */ - ms_setting_init_pre(); - ms_options_parse(argc, argv); - if (ms_check_para()) { - ms_help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION); - exit(1); - } - ms_setting_init_post(); - ms_stats_init(); - ms_thread_init(); - - /* waiting work thread complete its task */ - ms_monitor_slap_mode(); - - /* clean up */ - ms_thread_cleanup(); - ms_global_struct_destroy(); - ms_setting_cleanup(); - - return EXIT_SUCCESS; -} /* main */ diff --git a/src/bin/contrib/memaslap/ms_atomic.h b/src/bin/contrib/memaslap/ms_atomic.h deleted file mode 100644 index f50c629b..00000000 --- a/src/bin/contrib/memaslap/ms_atomic.h +++ /dev/null @@ -1,64 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#ifndef CLIENTS_MS_ATOMIC_H -#define CLIENTS_MS_ATOMIC_H - -#include "mem_config.h" - -#if defined(__SUNPRO_C) || defined(HAVE_ATOMIC_ADD_NV) -# define ATOMIC volatile -# define _KERNEL -# include -# if SIZEOF_SIZE_T == 8 -# define atomic_add_size(X, Y) atomic_add_64((X), (Y)) -# else -# define atomic_add_size(X, Y) atomic_add_32((X), (Y)) -# endif -# undef _KERNEL - -#elif HAVE_C_STDATOMIC -# define ATOMIC _Atomic -# include -# define atomic_dec_32(X) atomic_fetch_sub(X,1) -# define atomic_add_32 atomic_fetch_add -# define atomic_add_32_nv(X,Y) (atomic_fetch_add(X,Y)+(Y)) -# define atomic_add_size atomic_fetch_add - -#elif HAVE_BUILTIN_ATOMIC -# define ATOMIC -# define atomic_dec_32(X) BUILTIN_ATOMIC_PREFIX ## _atomic_fetch_sub(X,1) -# define atomic_add_32 BUILTIN_ATOMIC_PREFIX ## _atomic_fetch_add -# define atomic_add_32_nv BUILTIN_ATOMIC_PREFIX ## _atomic_add_fetch(X,Y) -# define atomic_add_size BUILTIN_ATOMIC_PREFIX ## _atomic_fetch_add - -#elif HAVE_BUILTIN_SYNC -# define ATOMIC -# define atomic_dec_32(X) __sync_fetch_and_sub((X), 1) -# define atomic_add_32 __sync_fetch_and_add -# define atomic_add_32_nv __sync_add_and_fetch -# define atomic_add_size __sync_fetch_and_add - -#else -# warning "Atomic operators not found so memslap will not work correctly" -# define ATOMIC -# define atomic_dec_32(X) (--(*(X))) -# define atomic_add_32(X,Y) ((*(X))+=(Y)) -# define atomic_add_32_nv atomic_add_32 -# define atomic_add_size atomic_add_32 - -#endif - -#endif /* CLIENTS_MS_ATOMIC_H */ diff --git a/src/bin/contrib/memaslap/ms_conn.c b/src/bin/contrib/memaslap/ms_conn.c deleted file mode 100644 index f4375ae8..00000000 --- a/src/bin/contrib/memaslap/ms_conn.c +++ /dev/null @@ -1,2864 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#include "mem_config.h" - -#include -#include -#include -#include -#include -#include -#include -#include - -#if defined(HAVE_ARPA_INET_H) -# include -#endif - -#if defined(HAVE_SYS_TIME_H) -# include -#endif - -#if defined(HAVE_TIME_H) -# include -#endif - -#include "ms_setting.h" -#include "ms_thread.h" -#include "ms_atomic.h" - -#ifdef linux -/* /usr/include/netinet/in.h defines macros from ntohs() to _bswap_nn to - * optimize the conversion functions, but the prototypes generate warnings - * from gcc. The conversion methods isn't the bottleneck for my app, so - * just remove the warnings by undef'ing the optimization .. - */ -# undef ntohs -# undef ntohl -# undef htons -# undef htonl -#endif - -/* for network write */ -#define TRANSMIT_COMPLETE 0 -#define TRANSMIT_INCOMPLETE 1 -#define TRANSMIT_SOFT_ERROR 2 -#define TRANSMIT_HARD_ERROR 3 - -/* for generating key */ -#define KEY_PREFIX_BASE 0x1010101010101010 /* not include ' ' '\r' '\n' '\0' */ -#define KEY_PREFIX_MASK 0x1010101010101010 - -/* For parse the value length return by server */ -#define KEY_TOKEN 1 -#define VALUELEN_TOKEN 3 - -/* global increasing counter, to ensure the key prefix unique */ -static uint64_t key_prefix_seq = KEY_PREFIX_BASE; - -/* global increasing counter, generating request id for UDP */ -static ATOMIC uint32_t udp_request_id = 0; - -extern pthread_key_t ms_thread_key; - -/* generate upd request id */ -static uint32_t ms_get_udp_request_id(void); - -/* connect initialize */ -static void ms_task_init(ms_conn_t *c); -static int ms_conn_udp_init(ms_conn_t *c, const bool is_udp); -static int ms_conn_sock_init(ms_conn_t *c); -static int ms_conn_event_init(ms_conn_t *c); -static int ms_conn_init(ms_conn_t *c, const int init_state, const int read_buffer_size, - const bool is_udp); -static void ms_warmup_num_init(ms_conn_t *c); -static int ms_item_win_init(ms_conn_t *c); - -/* connection close */ -void ms_conn_free(ms_conn_t *c); -static void ms_conn_close(ms_conn_t *c); - -/* create network connection */ -static int ms_new_socket(struct addrinfo *ai); -static void ms_maximize_sndbuf(const int sfd); -static int ms_network_connect(ms_conn_t *c, char *srv_host_name, const int srv_port, - const bool is_udp, int *ret_sfd); -static int ms_reconn(ms_conn_t *c); - -/* read and parse */ -static int ms_tokenize_command(char *command, token_t *tokens, const int max_tokens); -static int ms_ascii_process_line(ms_conn_t *c, char *command); -static int ms_try_read_line(ms_conn_t *c); -static int ms_sort_udp_packet(ms_conn_t *c, char *buf, int rbytes); -static int ms_udp_read(ms_conn_t *c, char *buf, int len); -static int ms_try_read_network(ms_conn_t *c); -static void ms_verify_value(ms_conn_t *c, ms_mlget_task_item_t *mlget_item, char *value, int vlen); -static void ms_ascii_complete_nread(ms_conn_t *c); -static void ms_bin_complete_nread(ms_conn_t *c); -static void ms_complete_nread(ms_conn_t *c); - -/* send functions */ -static int ms_add_msghdr(ms_conn_t *c); -static int ms_ensure_iov_space(ms_conn_t *c); -static int ms_add_iov(ms_conn_t *c, const void *buf, int len); -static int ms_build_udp_headers(ms_conn_t *c); -static int ms_transmit(ms_conn_t *c); - -/* status adjustment */ -static void ms_conn_shrink(ms_conn_t *c); -static void ms_conn_set_state(ms_conn_t *c, int state); -static bool ms_update_event(ms_conn_t *c, const int new_flags); -static uint32_t ms_get_rep_sock_index(ms_conn_t *c, int cmd); -static uint32_t ms_get_next_sock_index(ms_conn_t *c); -static int ms_update_conn_sock_event(ms_conn_t *c); -static bool ms_need_yield(ms_conn_t *c); -static void ms_update_start_time(ms_conn_t *c); - -/* main loop */ -static void ms_drive_machine(ms_conn_t *c); -void ms_event_handler(const int fd, const short which, void *arg); - -/* ascii protocol */ -static int ms_build_ascii_write_buf_set(ms_conn_t *c, ms_task_item_t *item); -static int ms_build_ascii_write_buf_get(ms_conn_t *c, ms_task_item_t *item); -static int ms_build_ascii_write_buf_mlget(ms_conn_t *c); - -/* binary protocol */ -static int ms_bin_process_response(ms_conn_t *c); -static void ms_add_bin_header(ms_conn_t *c, uint8_t opcode, uint8_t hdr_len, uint16_t key_len, - uint32_t body_len); -static void ms_add_key_to_iov(ms_conn_t *c, ms_task_item_t *item); -static int ms_build_bin_write_buf_set(ms_conn_t *c, ms_task_item_t *item); -static int ms_build_bin_write_buf_get(ms_conn_t *c, ms_task_item_t *item); -static int ms_build_bin_write_buf_mlget(ms_conn_t *c); - -/** - * each key has two parts, prefix and suffix. The suffix is a - * string random get form the character table. The prefix is a - * uint64_t variable. And the prefix must be unique. we use the - * prefix to identify a key. And the prefix can't include - * character ' ' '\r' '\n' '\0'. - * - * @return uint64_t - */ -uint64_t ms_get_key_prefix(void) { - uint64_t key_prefix; - - pthread_mutex_lock(&ms_global.seq_mutex); - key_prefix_seq |= KEY_PREFIX_MASK; - key_prefix = key_prefix_seq; - key_prefix_seq++; - pthread_mutex_unlock(&ms_global.seq_mutex); - - return key_prefix; -} /* ms_get_key_prefix */ - -/** - * get an unique udp request id - * - * @return an unique UDP request id - */ -static uint32_t ms_get_udp_request_id(void) { - return atomic_add_32_nv(&udp_request_id, 1); -} - -/** - * initialize current task structure - * - * @param c, pointer of the concurrency - */ -static void ms_task_init(ms_conn_t *c) { - c->curr_task.cmd = CMD_NULL; - c->curr_task.item = 0; - c->curr_task.verify = false; - c->curr_task.finish_verify = true; - c->curr_task.get_miss = true; - - c->curr_task.get_opt = 0; - c->curr_task.set_opt = 0; - c->curr_task.cycle_undo_get = 0; - c->curr_task.cycle_undo_set = 0; - c->curr_task.verified_get = 0; - c->curr_task.overwrite_set = 0; -} /* ms_task_init */ - -/** - * initialize udp for the connection structure - * - * @param c, pointer of the concurrency - * @param is_udp, whether it's udp - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_conn_udp_init(ms_conn_t *c, const bool is_udp) { - c->hdrbuf = 0; - c->rudpbuf = 0; - c->udppkt = 0; - - c->rudpsize = UDP_DATA_BUFFER_SIZE; - c->hdrsize = 0; - - c->rudpbytes = 0; - c->packets = 0; - c->recvpkt = 0; - c->pktcurr = 0; - c->ordcurr = 0; - - c->udp = is_udp; - - if (c->udp || (!c->udp && ms_setting.facebook_test)) { - c->rudpbuf = (char *) malloc((size_t) c->rudpsize); - c->udppkt = (ms_udppkt_t *) malloc(MAX_UDP_PACKET * sizeof(ms_udppkt_t)); - - if ((c->rudpbuf == NULL) || (c->udppkt == NULL)) { - if (c->rudpbuf) - free(c->rudpbuf); - if (c->udppkt) - free(c->udppkt); - fprintf(stderr, "malloc()\n"); - return -1; - } - memset(c->udppkt, 0, MAX_UDP_PACKET * sizeof(ms_udppkt_t)); - } - - return EXIT_SUCCESS; -} /* ms_conn_udp_init */ - -/** - * initialize the connection structure - * - * @param c, pointer of the concurrency - * @param init_state, (conn_read, conn_write, conn_closing) - * @param read_buffer_size - * @param is_udp, whether it's udp - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_conn_init(ms_conn_t *c, const int init_state, const int read_buffer_size, - const bool is_udp) { - assert(c); - - c->rbuf = c->wbuf = 0; - c->iov = 0; - c->msglist = 0; - - c->rsize = read_buffer_size; - c->wsize = WRITE_BUFFER_SIZE; - c->iovsize = IOV_LIST_INITIAL; - c->msgsize = MSG_LIST_INITIAL; - - /* for replication, each connection need connect all the server */ - if (ms_setting.rep_write_srv > 0) { - c->total_sfds = ms_setting.srv_cnt * ms_setting.sock_per_conn; - } else { - c->total_sfds = ms_setting.sock_per_conn; - } - c->alive_sfds = 0; - - c->rbuf = (char *) malloc((size_t) c->rsize); - c->wbuf = (char *) malloc((size_t) c->wsize); - c->iov = (struct iovec *) malloc(sizeof(struct iovec) * (size_t) c->iovsize); - c->msglist = (struct msghdr *) malloc(sizeof(struct msghdr) * (size_t) c->msgsize); - if (ms_setting.mult_key_num > 1) { - c->mlget_task.mlget_item = (ms_mlget_task_item_t *) malloc(sizeof(ms_mlget_task_item_t) - * (size_t) ms_setting.mult_key_num); - } - c->tcpsfd = (int *) malloc((size_t) c->total_sfds * sizeof(int)); - - if ((c->rbuf == NULL) || (c->wbuf == NULL) || (c->iov == NULL) || (c->msglist == NULL) - || (c->tcpsfd == NULL) - || ((ms_setting.mult_key_num > 1) && (c->mlget_task.mlget_item == NULL))) - { - if (c->rbuf) - free(c->rbuf); - if (c->wbuf) - free(c->wbuf); - if (c->iov) - free(c->iov); - if (c->msglist) - free(c->msglist); - if (c->mlget_task.mlget_item) - free(c->mlget_task.mlget_item); - if (c->tcpsfd) - free(c->tcpsfd); - fprintf(stderr, "malloc()\n"); - return -1; - } - - c->state = init_state; - c->rvbytes = 0; - c->rbytes = 0; - c->rcurr = c->rbuf; - c->wcurr = c->wbuf; - c->iovused = 0; - c->msgcurr = 0; - c->msgused = 0; - c->cur_idx = c->total_sfds; /* default index is a invalid value */ - - c->ctnwrite = false; - c->readval = false; - c->change_sfd = false; - - c->precmd.cmd = c->currcmd.cmd = CMD_NULL; - c->precmd.isfinish = true; /* default the previous command finished */ - c->currcmd.isfinish = false; - c->precmd.retstat = c->currcmd.retstat = MCD_FAILURE; - c->precmd.key_prefix = c->currcmd.key_prefix = 0; - - c->mlget_task.mlget_num = 0; - c->mlget_task.value_index = -1; /* default invalid value */ - - if (ms_setting.binary_prot_) { - c->protocol = binary_prot; - } else { - c->protocol = ascii_prot; - } - - /* initialize udp */ - if (ms_conn_udp_init(c, is_udp)) { - return -1; - } - - /* initialize task */ - ms_task_init(c); - - if (!(ms_setting.facebook_test && is_udp)) { - atomic_add_32(&ms_stats.active_conns, 1); - } - - return EXIT_SUCCESS; -} /* ms_conn_init */ - -/** - * when doing 100% get operation, it could preset some objects - * to warmup the server. this function is used to initialize the - * number of the objects to preset. - * - * @param c, pointer of the concurrency - */ -static void ms_warmup_num_init(ms_conn_t *c) { - /* no set operation, preset all the items in the window */ - if (ms_setting.cmd_distr[CMD_SET].cmd_prop < PROP_ERROR) { - c->warmup_num = c->win_size; - c->remain_warmup_num = c->warmup_num; - } else { - c->warmup_num = 0; - c->remain_warmup_num = c->warmup_num; - } -} /* ms_warmup_num_init */ - -/** - * each connection has an item window, this function initialize - * the window. The window is used to generate task. - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_item_win_init(ms_conn_t *c) { - ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); - int exp_cnt = 0; - - c->win_size = (int) ms_setting.win_size; - c->set_cursor = 0; - c->exec_num = ms_thread->thread_ctx->exec_num_perconn; - c->remain_exec_num = c->exec_num; - - c->item_win = (ms_task_item_t *) malloc(sizeof(ms_task_item_t) * (size_t) c->win_size); - if (c->item_win == NULL) { - fprintf(stderr, "Can't allocate task item array for conn.\n"); - return -1; - } - memset(c->item_win, 0, sizeof(ms_task_item_t) * (size_t) c->win_size); - - for (int i = 0; i < c->win_size; i++) { - c->item_win[i].key_size = (int) ms_setting.distr[i].key_size; - c->item_win[i].key_prefix = ms_get_key_prefix(); - c->item_win[i].key_suffix_offset = ms_setting.distr[i].key_offset; - c->item_win[i].value_size = (int) ms_setting.distr[i].value_size; - c->item_win[i].value_offset = INVALID_OFFSET; /* default in invalid offset */ - c->item_win[i].client_time = 0; - - /* set expire time base on the proportion */ - if (exp_cnt < ms_setting.exp_ver_per * i) { - c->item_win[i].exp_time = FIXED_EXPIRE_TIME; - exp_cnt++; - } else { - c->item_win[i].exp_time = 0; - } - } - - ms_warmup_num_init(c); - - return EXIT_SUCCESS; -} /* ms_item_win_init */ - -/** - * each connection structure can include one or more sock - * handlers. this function create these socks and connect the - * server(s). - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_conn_sock_init(ms_conn_t *c) { - ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); - uint32_t i; - int ret_sfd; - uint32_t srv_idx = 0; - - assert(c); - assert(c->tcpsfd); - - for (i = 0; i < c->total_sfds; i++) { - ret_sfd = 0; - if (ms_setting.rep_write_srv > 0) { - /* for replication, each connection need connect all the server */ - srv_idx = i % ms_setting.srv_cnt; - } else { - /* all the connections in a thread connects the same server */ - srv_idx = ms_thread->thread_ctx->srv_idx; - } - - if (ms_network_connect(c, ms_setting.servers[srv_idx].srv_host_name, - ms_setting.servers[srv_idx].srv_port, ms_setting.udp, &ret_sfd) -) - { - break; - } - - if (i == 0) { - c->sfd = ret_sfd; - } - - if (!ms_setting.udp) { - c->tcpsfd[i] = ret_sfd; - } - - c->alive_sfds++; - } - - /* initialize udp sock handler if necessary */ - if (ms_setting.facebook_test) { - ret_sfd = 0; - if (ms_network_connect(c, ms_setting.servers[srv_idx].srv_host_name, - ms_setting.servers[srv_idx].srv_port, true, &ret_sfd) -) - { - c->udpsfd = 0; - } else { - c->udpsfd = ret_sfd; - } - } - - if ((i != c->total_sfds) || (ms_setting.facebook_test && (c->udpsfd == 0))) { - if (ms_setting.udp) { - close(c->sfd); - } else { - for (uint32_t j = 0; j < i; j++) { - close(c->tcpsfd[j]); - } - } - - if (c->udpsfd) { - close(c->udpsfd); - } - - return -1; - } - - return EXIT_SUCCESS; -} /* ms_conn_sock_init */ - -/** - * each connection is managed by libevent, this function - * initialize the event of the connection structure. - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_conn_event_init(ms_conn_t *c) { - ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); - short event_flags = EV_WRITE | EV_PERSIST; - - event_set(&c->event, c->sfd, event_flags, ms_event_handler, (void *) c); - event_base_set(ms_thread->base, &c->event); - c->ev_flags = event_flags; - - if (event_add(&c->event, NULL) == -1) { - return -1; - } - - return EXIT_SUCCESS; -} /* ms_conn_event_init */ - -/** - * setup a connection, each connection structure of each - * thread must call this function to initialize. - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -int ms_setup_conn(ms_conn_t *c) { - if (ms_item_win_init(c)) { - return -1; - } - - if (ms_conn_init(c, conn_write, DATA_BUFFER_SIZE, ms_setting.udp)) { - return -1; - } - - if (ms_conn_sock_init(c)) { - return -1; - } - - if (ms_conn_event_init(c)) { - return -1; - } - - return EXIT_SUCCESS; -} /* ms_setup_conn */ - -/** - * Frees a connection. - * - * @param c, pointer of the concurrency - */ -void ms_conn_free(ms_conn_t *c) { - ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); - if (c) { - if (c->hdrbuf) - free(c->hdrbuf); - if (c->msglist) - free(c->msglist); - if (c->rbuf) - free(c->rbuf); - if (c->wbuf) - free(c->wbuf); - if (c->iov) - free(c->iov); - if (c->mlget_task.mlget_item) - free(c->mlget_task.mlget_item); - if (c->rudpbuf) - free(c->rudpbuf); - if (c->udppkt) - free(c->udppkt); - if (c->item_win) - free(c->item_win); - if (c->tcpsfd) - free(c->tcpsfd); - - if (--ms_thread->nactive_conn == 0) { - free(ms_thread->conn); - } - } -} /* ms_conn_free */ - -/** - * close a connection - * - * @param c, pointer of the concurrency - */ -static void ms_conn_close(ms_conn_t *c) { - ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); - assert(c); - - /* delete the event, the socket and the connection */ - event_del(&c->event); - - for (uint32_t i = 0; i < c->total_sfds; i++) { - if (c->tcpsfd[i] > 0) { - close(c->tcpsfd[i]); - } - } - c->sfd = 0; - - if (ms_setting.facebook_test) { - close(c->udpsfd); - } - - atomic_dec_32(&ms_stats.active_conns); - - ms_conn_free(c); - - if (ms_setting.run_time == 0) { - pthread_mutex_lock(&ms_global.run_lock.lock); - ms_global.run_lock.count++; - pthread_cond_signal(&ms_global.run_lock.cond); - pthread_mutex_unlock(&ms_global.run_lock.lock); - } - - if (ms_thread->nactive_conn == 0) { - event_base_loopbreak(ms_thread->base); - } -} /* ms_conn_close */ - -/** - * create a new sock - * - * @param ai, server address information - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_new_socket(struct addrinfo *ai) { - int sfd; - - if ((sfd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol)) == -1) { - fprintf(stderr, "socket() error: %s.\n", strerror(errno)); - return -1; - } - - return sfd; -} /* ms_new_socket */ - -/** - * Sets a socket's send buffer size to the maximum allowed by the system. - * - * @param sfd, file descriptor of socket - */ -static void ms_maximize_sndbuf(const int sfd) { - socklen_t intsize = sizeof(int); - unsigned int last_good = 0; - unsigned int min, max, avg; - unsigned int old_size; - - /* Start with the default size. */ - if (getsockopt(sfd, SOL_SOCKET, SO_SNDBUF, &old_size, &intsize)) { - fprintf(stderr, "getsockopt(SO_SNDBUF)\n"); - return; - } - - /* Binary-search for the real maximum. */ - min = old_size; - max = MAX_SENDBUF_SIZE; - - while (min <= max) { - avg = ((unsigned int) (min + max)) / 2; - if (setsockopt(sfd, SOL_SOCKET, SO_SNDBUF, (void *) &avg, intsize) == 0) { - last_good = avg; - min = avg + 1; - } else { - max = avg - 1; - } - } - (void) last_good; -} /* ms_maximize_sndbuf */ - -/** - * socket connects the server - * - * @param c, pointer of the concurrency - * @param srv_host_name, the host name of the server - * @param srv_port, port of server - * @param is_udp, whether it's udp - * @param ret_sfd, the connected socket file descriptor - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_network_connect(ms_conn_t *c, char *srv_host_name, const int srv_port, - const bool is_udp, int *ret_sfd) { - int sfd; - struct linger ling = {0, 0}; - struct addrinfo *ai; - struct addrinfo *next; - struct addrinfo hints; - char port_buf[NI_MAXSERV]; - int error; - int success = 0; - - int flags = 1; - - /* - * the memset call clears nonstandard fields in some impementations - * that otherwise mess things up. - */ - memset(&hints, 0, sizeof(hints)); -#ifdef AI_ADDRCONFIG - hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG; -#else - hints.ai_flags = AI_PASSIVE; -#endif /* AI_ADDRCONFIG */ - if (is_udp) { - hints.ai_protocol = IPPROTO_UDP; - hints.ai_socktype = SOCK_DGRAM; - hints.ai_family = AF_INET; /* This left here because of issues with OSX 10.5 */ - } else { - hints.ai_family = AF_UNSPEC; - hints.ai_protocol = IPPROTO_TCP; - hints.ai_socktype = SOCK_STREAM; - } - - snprintf(port_buf, NI_MAXSERV, "%d", srv_port); - error = getaddrinfo(srv_host_name, port_buf, &hints, &ai); - if (error) { - if (error != EAI_SYSTEM) - fprintf(stderr, "getaddrinfo(): %s.\n", gai_strerror(error)); - else - perror("getaddrinfo()"); - - return -1; - } - - for (next = ai; next; next = next->ai_next) { - if ((sfd = ms_new_socket(next)) == -1) { - freeaddrinfo(ai); - return -1; - } - - setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, (void *) &flags, sizeof(flags)); - if (is_udp) { - ms_maximize_sndbuf(sfd); - } else { - setsockopt(sfd, SOL_SOCKET, SO_KEEPALIVE, (void *) &flags, sizeof(flags)); - setsockopt(sfd, SOL_SOCKET, SO_LINGER, (void *) &ling, sizeof(ling)); - setsockopt(sfd, IPPROTO_TCP, TCP_NODELAY, (void *) &flags, sizeof(flags)); - } - - if (is_udp) { - c->srv_recv_addr_size = sizeof(struct sockaddr); - memcpy(&c->srv_recv_addr, next->ai_addr, c->srv_recv_addr_size); - } else { - if (connect(sfd, next->ai_addr, next->ai_addrlen) == -1) { - close(sfd); - freeaddrinfo(ai); - return -1; - } - } - - if (((flags = fcntl(sfd, F_GETFL, 0)) < 0) || (fcntl(sfd, F_SETFL, flags | O_NONBLOCK) < 0)) { - fprintf(stderr, "setting O_NONBLOCK\n"); - close(sfd); - freeaddrinfo(ai); - return -1; - } - - if (ret_sfd) { - *ret_sfd = sfd; - } - - success++; - } - - freeaddrinfo(ai); - - /* Return zero if we detected no errors in starting up connections */ - return success == 0; -} /* ms_network_connect */ - -/** - * reconnect a disconnected sock - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_reconn(ms_conn_t *c) { - ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); - uint32_t srv_idx = 0; - uint32_t srv_conn_cnt = 0; - - if (ms_setting.rep_write_srv > 0) { - srv_idx = c->cur_idx % ms_setting.srv_cnt; - srv_conn_cnt = ms_setting.sock_per_conn * ms_setting.nconns; - } else { - srv_idx = ms_thread->thread_ctx->srv_idx; - srv_conn_cnt = ms_setting.nconns / ms_setting.srv_cnt; - } - - /* close the old socket handler */ - close(c->sfd); - c->tcpsfd[c->cur_idx] = 0; - - if (atomic_add_32_nv(&ms_setting.servers[srv_idx].disconn_cnt, 1) % srv_conn_cnt == 0) { - gettimeofday(&ms_setting.servers[srv_idx].disconn_time, NULL); - fprintf(stderr, "Server %s:%d disconnect\n", ms_setting.servers[srv_idx].srv_host_name, - ms_setting.servers[srv_idx].srv_port); - } - - if (ms_setting.rep_write_srv > 0) { - uint32_t i = 0; - - for (i = 0; i < c->total_sfds; i++) { - if (c->tcpsfd[i]) { - break; - } - } - - /* all socks disconnect */ - if (i == c->total_sfds) { - return -1; - } - } else { - do { - /* reconnect success, break the loop */ - if (ms_network_connect(c, ms_setting.servers[srv_idx].srv_host_name, - ms_setting.servers[srv_idx].srv_port, ms_setting.udp, &c->sfd) - == 0) - { - c->tcpsfd[c->cur_idx] = c->sfd; - if (atomic_add_32_nv(&ms_setting.servers[srv_idx].reconn_cnt, 1) % (uint32_t) srv_conn_cnt - == 0) { - gettimeofday(&ms_setting.servers[srv_idx].reconn_time, NULL); - int reconn_time = (int) (ms_setting.servers[srv_idx].reconn_time.tv_sec - - ms_setting.servers[srv_idx].disconn_time.tv_sec); - fprintf(stderr, "Server %s:%d reconnect after %ds\n", - ms_setting.servers[srv_idx].srv_host_name, ms_setting.servers[srv_idx].srv_port, - reconn_time); - } - break; - } - - if (ms_setting.rep_write_srv == 0 && c->total_sfds > 0) { - /* wait a second and reconnect */ - sleep(1); - } - } while (ms_setting.rep_write_srv == 0 && c->total_sfds > 0); - } - - if ((c->total_sfds > 1) && (c->tcpsfd[c->cur_idx] == 0)) { - c->sfd = 0; - c->alive_sfds--; - } - - return EXIT_SUCCESS; -} /* ms_reconn */ - -/** - * reconnect several disconnected socks in the connection - * structure, the ever-1-second timer of the thread will check - * whether some socks in the connections disconnect. if - * disconnect, reconnect the sock. - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -int ms_reconn_socks(ms_conn_t *c) { - ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); - uint32_t srv_idx = 0; - int ret_sfd = 0; - uint32_t srv_conn_cnt = 0; - struct timeval cur_time; - - assert(c); - - if ((c->total_sfds == 1) || (c->total_sfds == c->alive_sfds)) { - return EXIT_SUCCESS; - } - - for (uint32_t i = 0; i < c->total_sfds; i++) { - if (c->tcpsfd[i] == 0) { - gettimeofday(&cur_time, NULL); - - /** - * For failover test of replication, reconnect the socks after - * it disconnects more than 5 seconds, Otherwise memslap will - * block at connect() function and the work threads can't work - * in this interval. - */ - if (cur_time.tv_sec - ms_setting.servers[srv_idx].disconn_time.tv_sec < 5) { - break; - } - - if (ms_setting.rep_write_srv > 0) { - srv_idx = i % ms_setting.srv_cnt; - srv_conn_cnt = ms_setting.sock_per_conn * ms_setting.nconns; - } else { - srv_idx = ms_thread->thread_ctx->srv_idx; - srv_conn_cnt = ms_setting.nconns / ms_setting.srv_cnt; - } - - if (ms_network_connect(c, ms_setting.servers[srv_idx].srv_host_name, - ms_setting.servers[srv_idx].srv_port, ms_setting.udp, &ret_sfd) - == 0) - { - c->tcpsfd[i] = ret_sfd; - c->alive_sfds++; - - if (atomic_add_32_nv(&ms_setting.servers[srv_idx].reconn_cnt, 1) % (uint32_t) srv_conn_cnt - == 0) { - gettimeofday(&ms_setting.servers[srv_idx].reconn_time, NULL); - int reconn_time = (int) (ms_setting.servers[srv_idx].reconn_time.tv_sec - - ms_setting.servers[srv_idx].disconn_time.tv_sec); - fprintf(stderr, "Server %s:%d reconnect after %ds\n", - ms_setting.servers[srv_idx].srv_host_name, ms_setting.servers[srv_idx].srv_port, - reconn_time); - } - } - } - } - - return EXIT_SUCCESS; -} /* ms_reconn_socks */ - -/** - * Tokenize the command string by replacing whitespace with '\0' and update - * the token array tokens with pointer to start of each token and length. - * Returns total number of tokens. The last valid token is the terminal - * token (value points to the first unprocessed character of the string and - * length zero). - * - * Usage example: - * - * while(ms_tokenize_command(command, ncommand, tokens, max_tokens) > 0) { - * for(int ix = 0; tokens[ix].length; ix++) { - * ... - * } - * ncommand = tokens[ix].value - command; - * command = tokens[ix].value; - * } - * - * @param command, the command string to token - * @param tokens, array to store tokens - * @param max_tokens, maximum tokens number - * - * @return int, the number of tokens - */ -static int ms_tokenize_command(char *command, token_t *tokens, const int max_tokens) { - char *s, *e; - int ntokens = 0; - - assert(command && tokens && max_tokens > 1); - - for (s = e = command; ntokens < max_tokens - 1; ++e) { - if (*e == ' ') { - if (s != e) { - tokens[ntokens].value = s; - tokens[ntokens].length = (size_t)(e - s); - ntokens++; - *e = '\0'; - } - s = e + 1; - } else if (*e == '\0') { - if (s != e) { - tokens[ntokens].value = s; - tokens[ntokens].length = (size_t)(e - s); - ntokens++; - } - - break; /* string end */ - } - } - - return ntokens; -} /* ms_tokenize_command */ - -/** - * parse the response of server. - * - * @param c, pointer of the concurrency - * @param command, the string responded by server - * - * @return int, if the command completed return EXIT_SUCCESS, else return - * -1 - */ -static int ms_ascii_process_line(ms_conn_t *c, char *command) { - int ret = 0; - int64_t value_len; - char *buffer = command; - - assert(c); - - /** - * for command get, we store the returned value into local buffer - * then continue in ms_complete_nread(). - */ - - switch (buffer[0]) { - case 'V': /* VALUE || VERSION */ - if (buffer[1] == 'A') /* VALUE */ { - token_t tokens[MAX_TOKENS]; - ms_tokenize_command(command, tokens, MAX_TOKENS); - errno = 0; - value_len = strtol(tokens[VALUELEN_TOKEN].value, NULL, 10); - if (errno) { - printf("<%d ERROR %s\n", c->sfd, strerror(errno)); - } - memcpy(&c->currcmd.key_prefix, tokens[KEY_TOKEN].value, sizeof(c->currcmd.key_prefix)); - - /* - * We read the \r\n into the string since not doing so is more - * cycles then the waster of memory to do so. - * - * We are null terminating through, which will most likely make - * some people lazy about using the return length. - */ - c->rvbytes = (int) (value_len + 2); - c->readval = true; - ret = -1; - } - - break; - - case 'O': /* OK */ - c->currcmd.retstat = MCD_SUCCESS; - break; - - case 'S': /* STORED STATS SERVER_ERROR */ - if (buffer[2] == 'A') /* STORED STATS */ { /* STATS*/ - c->currcmd.retstat = MCD_STAT; - } else if (buffer[1] == 'E') { - /* SERVER_ERROR */ - printf("<%d %s\n", c->sfd, buffer); - - c->currcmd.retstat = MCD_SERVER_ERROR; - } else if (buffer[1] == 'T') { - /* STORED */ - c->currcmd.retstat = MCD_STORED; - } else { - c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; - } - break; - - case 'D': /* DELETED DATA */ - if (buffer[1] == 'E') { - c->currcmd.retstat = MCD_DELETED; - } else { - c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; - } - - break; - - case 'N': /* NOT_FOUND NOT_STORED*/ - if (buffer[4] == 'F') { - c->currcmd.retstat = MCD_NOTFOUND; - } else if (buffer[4] == 'S') { - printf("<%d %s\n", c->sfd, buffer); - c->currcmd.retstat = MCD_NOTSTORED; - } else { - c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; - } - break; - - case 'E': /* PROTOCOL ERROR or END */ - if (buffer[1] == 'N') { - /* END */ - c->currcmd.retstat = MCD_END; - } else if (buffer[1] == 'R') { - printf("<%d ERROR\n", c->sfd); - c->currcmd.retstat = MCD_PROTOCOL_ERROR; - } else if (buffer[1] == 'X') { - c->currcmd.retstat = MCD_DATA_EXISTS; - printf("<%d %s\n", c->sfd, buffer); - } else { - c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; - } - break; - - case 'C': /* CLIENT ERROR */ - printf("<%d %s\n", c->sfd, buffer); - c->currcmd.retstat = MCD_CLIENT_ERROR; - break; - - default: - c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; - break; - } /* switch */ - - return ret; -} /* ms_ascii_process_line */ - -/** - * after one operation completes, reset the concurrency - * - * @param c, pointer of the concurrency - * @param timeout, whether it's timeout - */ -void ms_reset_conn(ms_conn_t *c, bool timeout) { - assert(c); - - if (c->udp) { - if ((c->packets > 0) && (c->packets < MAX_UDP_PACKET)) { - memset(c->udppkt, 0, sizeof(ms_udppkt_t) * (size_t) c->packets); - } - - c->packets = 0; - c->recvpkt = 0; - c->pktcurr = 0; - c->ordcurr = 0; - c->rudpbytes = 0; - } - c->currcmd.isfinish = true; - c->ctnwrite = false; - c->rbytes = 0; - c->rcurr = c->rbuf; - c->msgcurr = 0; - c->msgused = 0; - c->iovused = 0; - ms_conn_set_state(c, conn_write); - memcpy(&c->precmd, &c->currcmd, sizeof(ms_cmdstat_t)); /* replicate command state */ - - if (timeout) { - ms_drive_machine(c); - } -} /* ms_reset_conn */ - -/** - * if we have a complete line in the buffer, process it. - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_try_read_line(ms_conn_t *c) { - if (c->protocol == binary_prot) { - /* Do we have the complete packet header? */ - if ((uint64_t) c->rbytes < sizeof(c->binary_header)) { - /* need more data! */ - return EXIT_SUCCESS; - } else { -#ifdef NEED_ALIGN - if (((long) (c->rcurr)) % 8) { - /* must realign input buffer */ - memmove(c->rbuf, c->rcurr, c->rbytes); - c->rcurr = c->rbuf; - if (settings.verbose) { - fprintf(stderr, "%d: Realign input buffer.\n", c->sfd); - } - } -#endif - protocol_binary_response_header *rsp; - rsp = (protocol_binary_response_header *) c->rcurr; - - c->binary_header = *rsp; - c->binary_header.response.extlen = rsp->response.extlen; - c->binary_header.response.keylen = ntohs(rsp->response.keylen); - c->binary_header.response.bodylen = ntohl(rsp->response.bodylen); - c->binary_header.response.status = ntohs(rsp->response.status); - - if (c->binary_header.response.magic != PROTOCOL_BINARY_RES) { - fprintf(stderr, "Invalid magic: %x\n", c->binary_header.response.magic); - ms_conn_set_state(c, conn_closing); - return EXIT_SUCCESS; - } - - /* process this complete response */ - if (ms_bin_process_response(c) == 0) { - /* current operation completed */ - ms_reset_conn(c, false); - return -1; - } else { - c->rbytes -= (int32_t) sizeof(c->binary_header); - c->rcurr += sizeof(c->binary_header); - } - } - } else { - char *el, *cont; - - assert(c); - assert(c->rcurr <= (c->rbuf + c->rsize)); - - if (c->rbytes == 0) - return EXIT_SUCCESS; - - el = memchr(c->rcurr, '\n', (size_t) c->rbytes); - if (!el) - return EXIT_SUCCESS; - - cont = el + 1; - if (((el - c->rcurr) > 1) && (*(el - 1) == '\r')) { - el--; - } - *el = '\0'; - - assert(cont <= (c->rcurr + c->rbytes)); - - /* process this complete line */ - if (ms_ascii_process_line(c, c->rcurr) == 0) { - /* current operation completed */ - ms_reset_conn(c, false); - return -1; - } else { - /* current operation didn't complete */ - c->rbytes -= (int32_t)(cont - c->rcurr); - c->rcurr = cont; - } - - assert(c->rcurr <= (c->rbuf + c->rsize)); - } - - return -1; -} /* ms_try_read_line */ - -/** - * because the packet of UDP can't ensure the order, the - * function is used to sort the received udp packet. - * - * @param c, pointer of the concurrency - * @param buf, the buffer to store the ordered packages data - * @param rbytes, the maximum capacity of the buffer - * - * @return int, if success, return the copy bytes, else return - * -1 - */ -static int ms_sort_udp_packet(ms_conn_t *c, char *buf, int rbytes) { - int len = 0; - int wbytes = 0; - uint16_t req_id = 0; - uint16_t seq_num = 0; - uint16_t packets = 0; - unsigned char *header = NULL; - - /* no enough data */ - assert(c); - assert(buf); - assert(c->rudpbytes >= UDP_HEADER_SIZE); - - /* calculate received packets count */ - if (c->rudpbytes % UDP_MAX_PAYLOAD_SIZE >= UDP_HEADER_SIZE) { - /* the last packet has some data */ - c->recvpkt = c->rudpbytes / UDP_MAX_PAYLOAD_SIZE + 1; - } else { - c->recvpkt = c->rudpbytes / UDP_MAX_PAYLOAD_SIZE; - } - - /* get the total packets count if necessary */ - if (c->packets == 0) { - c->packets = HEADER_TO_PACKETS((unsigned char *) c->rudpbuf); - } - - /* build the ordered packet array */ - for (int i = c->pktcurr; i < c->recvpkt; i++) { - header = (unsigned char *) c->rudpbuf + i * UDP_MAX_PAYLOAD_SIZE; - req_id = (uint16_t) HEADER_TO_REQID(header); - assert(req_id == c->request_id % (1 << 16)); - - packets = (uint16_t) HEADER_TO_PACKETS(header); - assert(c->packets == HEADER_TO_PACKETS(header)); - - seq_num = (uint16_t) HEADER_TO_SEQNUM(header); - c->udppkt[seq_num].header = header; - c->udppkt[seq_num].data = (char *) header + UDP_HEADER_SIZE; - - if (i == c->recvpkt - 1) { - /* last received packet */ - if (c->rudpbytes % UDP_MAX_PAYLOAD_SIZE == 0) { - c->udppkt[seq_num].rbytes = UDP_MAX_PAYLOAD_SIZE - UDP_HEADER_SIZE; - c->pktcurr++; - } else { - c->udppkt[seq_num].rbytes = c->rudpbytes % UDP_MAX_PAYLOAD_SIZE - UDP_HEADER_SIZE; - } - } else { - c->udppkt[seq_num].rbytes = UDP_MAX_PAYLOAD_SIZE - UDP_HEADER_SIZE; - c->pktcurr++; - } - } - - for (int i = c->ordcurr; i < c->recvpkt; i++) { - /* there is some data to copy */ - if ((c->udppkt[i].data) && (c->udppkt[i].copybytes < c->udppkt[i].rbytes)) { - header = c->udppkt[i].header; - len = c->udppkt[i].rbytes - c->udppkt[i].copybytes; - if (len > rbytes - wbytes) { - len = rbytes - wbytes; - } - - assert(len <= rbytes - wbytes); - assert(i == HEADER_TO_SEQNUM(header)); - - memcpy(buf + wbytes, c->udppkt[i].data + c->udppkt[i].copybytes, (size_t) len); - wbytes += len; - c->udppkt[i].copybytes += len; - - if ((c->udppkt[i].copybytes == c->udppkt[i].rbytes) - && (c->udppkt[i].rbytes == UDP_MAX_PAYLOAD_SIZE - UDP_HEADER_SIZE)) - { - /* finish copying all the data of this packet, next */ - c->ordcurr++; - } - - /* last received packet, and finish copying all the data */ - if ((c->recvpkt == c->packets) && (i == c->recvpkt - 1) - && (c->udppkt[i].copybytes == c->udppkt[i].rbytes)) - { - break; - } - - /* no space to copy data */ - if (wbytes >= rbytes) { - break; - } - - /* it doesn't finish reading all the data of the packet from network */ - if ((i != c->recvpkt - 1) && (c->udppkt[i].rbytes < UDP_MAX_PAYLOAD_SIZE - UDP_HEADER_SIZE)) { - break; - } - } else { - /* no data to copy */ - break; - } - } - (void) packets; - - return wbytes == 0 ? -1 : wbytes; -} /* ms_sort_udp_packet */ - -/** - * encapsulate upd read like tcp read - * - * @param c, pointer of the concurrency - * @param buf, read buffer - * @param len, length to read - * - * @return int, if success, return the read bytes, else return - * -1 - */ -static int ms_udp_read(ms_conn_t *c, char *buf, int len) { - int res = 0; - int avail = 0; - int rbytes = 0; - int copybytes = 0; - - assert(c->udp); - - while (1) { - if (c->rudpbytes + UDP_MAX_PAYLOAD_SIZE > c->rudpsize) { - char *new_rbuf = realloc(c->rudpbuf, (size_t) c->rudpsize * 2); - if (!new_rbuf) { - fprintf(stderr, "Couldn't realloc input buffer.\n"); - c->rudpbytes = 0; /* ignore what we read */ - return -1; - } - c->rudpbuf = new_rbuf; - c->rudpsize *= 2; - } - - avail = c->rudpsize - c->rudpbytes; - /* UDP each time read a packet, 1400 bytes */ - res = (int) read(c->sfd, c->rudpbuf + c->rudpbytes, (size_t) avail); - - if (res > 0) { - atomic_add_size(&ms_stats.bytes_read, res); - c->rudpbytes += res; - rbytes += res; - if (res == avail) { - continue; - } else { - break; - } - } - - if (res == 0) { - /* "connection" closed */ - return res; - } - - if (res == -1) { - /* no data to read */ - return res; - } - } - - /* copy data to read buffer */ - if (rbytes > 0) { - copybytes = ms_sort_udp_packet(c, buf, len); - } - - if (copybytes == -1) { - atomic_add_size(&ms_stats.pkt_disorder, 1); - } - - return copybytes; -} /* ms_udp_read */ - -/* - * read from network as much as we can, handle buffer overflow and connection - * close. - * before reading, move the remaining incomplete fragment of a command - * (if any) to the beginning of the buffer. - * return EXIT_SUCCESS if there's nothing to read on the first read. - */ - -/** - * read from network as much as we can, handle buffer overflow and connection - * close. before reading, move the remaining incomplete fragment of a command - * (if any) to the beginning of the buffer. - * - * @param c, pointer of the concurrency - * - * @return int, - * return EXIT_SUCCESS if there's nothing to read on the first read. - * return EXIT_FAILURE if get data - * return -1 if error happens - */ -static int ms_try_read_network(ms_conn_t *c) { - int gotdata = 0; - int res; - int64_t avail; - - assert(c); - - if ((c->rcurr != c->rbuf) - && (!c->readval || (c->rvbytes > c->rsize - (c->rcurr - c->rbuf)) - || (c->readval && (c->rcurr - c->rbuf > c->rbytes)))) - { - if (c->rbytes) /* otherwise there's nothing to copy */ - memmove(c->rbuf, c->rcurr, (size_t) c->rbytes); - c->rcurr = c->rbuf; - } - - while (1) { - if (c->rbytes >= c->rsize) { - char *new_rbuf = realloc(c->rbuf, (size_t) c->rsize * 2); - if (!new_rbuf) { - fprintf(stderr, "Couldn't realloc input buffer.\n"); - c->rbytes = 0; /* ignore what we read */ - return -1; - } - c->rcurr = c->rbuf = new_rbuf; - c->rsize *= 2; - } - - avail = c->rsize - c->rbytes - (c->rcurr - c->rbuf); - if (avail == 0) { - break; - } - - if (c->udp) { - res = (int32_t) ms_udp_read(c, c->rcurr + c->rbytes, (int32_t) avail); - } else { - res = (int) read(c->sfd, c->rcurr + c->rbytes, (size_t) avail); - } - - if (res > 0) { - if (!c->udp) { - atomic_add_size(&ms_stats.bytes_read, res); - } - gotdata = 1; - c->rbytes += res; - if (res == avail) { - continue; - } else { - break; - } - } - if (res == 0) { - /* connection closed */ - ms_conn_set_state(c, conn_closing); - return -1; - } - if (res == -1) { - if ((errno == EAGAIN) || (errno == EWOULDBLOCK)) - break; - /* Should close on unhandled errors. */ - ms_conn_set_state(c, conn_closing); - return -1; - } - } - - return gotdata; -} /* ms_try_read_network */ - -/** - * after get the object from server, verify the value if - * necessary. - * - * @param c, pointer of the concurrency - * @param mlget_item, pointer of mulit-get task item structure - * @param value, received value string - * @param vlen, received value string length - */ -static void ms_verify_value(ms_conn_t *c, ms_mlget_task_item_t *mlget_item, char *value, int vlen) { - if (c->curr_task.verify) { - assert(c->curr_task.item->value_offset != INVALID_OFFSET); - char *orignval = &ms_setting.char_block[c->curr_task.item->value_offset]; - char *orignkey = &ms_setting.char_block[c->curr_task.item->key_suffix_offset]; - - /* verify expire time if necessary */ - if (c->curr_task.item->exp_time > 0) { - struct timeval curr_time; - gettimeofday(&curr_time, NULL); - - /* object expired but get it now */ - if (curr_time.tv_sec - c->curr_task.item->client_time - > c->curr_task.item->exp_time + EXPIRE_TIME_ERROR) - { - atomic_add_size(&ms_stats.exp_get, 1); - - if (ms_setting.verbose) { - char set_time[64]; - char cur_time[64]; - strftime(set_time, 64, "%Y-%m-%d %H:%M:%S", localtime(&c->curr_task.item->client_time)); - strftime(cur_time, 64, "%Y-%m-%d %H:%M:%S", localtime(&curr_time.tv_sec)); - fprintf(stderr, - "\n<%d expire time verification failed, " - "object expired but get it now\n" - "\tkey len: %d\n" - "\tkey: %" PRIx64 " %.*s\n" - "\tset time: %s current time: %s " - "diff time: %d expire time: %d\n" - "\texpected data: \n" - "\treceived data len: %d\n" - "\treceived data: %.*s\n", - c->sfd, c->curr_task.item->key_size, c->curr_task.item->key_prefix, - c->curr_task.item->key_size - (int) KEY_PREFIX_SIZE, orignkey, set_time, cur_time, - (int) (curr_time.tv_sec - c->curr_task.item->client_time), - c->curr_task.item->exp_time, vlen, vlen, value); - fflush(stderr); - } - } - } else { - if ((c->curr_task.item->value_size != vlen) || (memcmp(orignval, value, (size_t) vlen))) - { - atomic_add_size(&ms_stats.vef_failed, 1); - - if (ms_setting.verbose) { - fprintf(stderr, - "\n<%d data verification failed\n" - "\tkey len: %d\n" - "\tkey: %" PRIx64 " %.*s\n" - "\texpected data len: %d\n" - "\texpected data: %.*s\n" - "\treceived data len: %d\n" - "\treceived data: %.*s\n", - c->sfd, c->curr_task.item->key_size, c->curr_task.item->key_prefix, - c->curr_task.item->key_size - (int) KEY_PREFIX_SIZE, orignkey, - c->curr_task.item->value_size, c->curr_task.item->value_size, orignval, vlen, - vlen, value); - fflush(stderr); - } - } - } - - c->curr_task.finish_verify = true; - - if (mlget_item) { - mlget_item->finish_verify = true; - } - } -} /* ms_verify_value */ - -/** - * For ASCII protocol, after store the data into the local - * buffer, run this function to handle the data. - * - * @param c, pointer of the concurrency - */ -static void ms_ascii_complete_nread(ms_conn_t *c) { - assert(c); - assert(c->rbytes >= c->rvbytes); - assert(c->protocol == ascii_prot); - if (c->rvbytes > 2) { - assert(c->rcurr[c->rvbytes - 1] == '\n' && c->rcurr[c->rvbytes - 2] == '\r'); - } - - /* multi-get */ - ms_mlget_task_item_t *mlget_item = NULL; - if (((ms_setting.mult_key_num > 1) && (c->mlget_task.mlget_num >= ms_setting.mult_key_num)) - || ((c->remain_exec_num == 0) && (c->mlget_task.mlget_num > 0))) - { - c->mlget_task.value_index++; - mlget_item = &c->mlget_task.mlget_item[c->mlget_task.value_index]; - - if (mlget_item->item->key_prefix == c->currcmd.key_prefix) { - c->curr_task.item = mlget_item->item; - c->curr_task.verify = mlget_item->verify; - c->curr_task.finish_verify = mlget_item->finish_verify; - mlget_item->get_miss = false; - } else { - /* Try to find the task item in multi-get task array */ - for (int i = 0; i < c->mlget_task.mlget_num; i++) { - mlget_item = &c->mlget_task.mlget_item[i]; - if (mlget_item->item->key_prefix == c->currcmd.key_prefix) { - c->curr_task.item = mlget_item->item; - c->curr_task.verify = mlget_item->verify; - c->curr_task.finish_verify = mlget_item->finish_verify; - mlget_item->get_miss = false; - - break; - } - } - } - } - - ms_verify_value(c, mlget_item, c->rcurr, c->rvbytes - 2); - - c->curr_task.get_miss = false; - c->rbytes -= c->rvbytes; - c->rcurr = c->rcurr + c->rvbytes; - assert(c->rcurr <= (c->rbuf + c->rsize)); - c->readval = false; - c->rvbytes = 0; -} /* ms_ascii_complete_nread */ - -/** - * For binary protocol, after store the data into the local - * buffer, run this function to handle the data. - * - * @param c, pointer of the concurrency - */ -static void ms_bin_complete_nread(ms_conn_t *c) { - assert(c); - assert(c->rbytes >= c->rvbytes); - assert(c->protocol == binary_prot); - - int extlen = c->binary_header.response.extlen; - int keylen = c->binary_header.response.keylen; - uint8_t opcode = c->binary_header.response.opcode; - - /* not get command or not include value, just return */ - if (((opcode != PROTOCOL_BINARY_CMD_GET) && (opcode != PROTOCOL_BINARY_CMD_GETQ)) - || (c->rvbytes <= extlen + keylen)) - { - /* get miss */ - if (c->binary_header.response.opcode == PROTOCOL_BINARY_CMD_GET) { - c->currcmd.retstat = MCD_END; - c->curr_task.get_miss = true; - } - - c->readval = false; - c->rvbytes = 0; - ms_reset_conn(c, false); - return; - } - - /* multi-get */ - ms_mlget_task_item_t *mlget_item = NULL; - if (((ms_setting.mult_key_num > 1) && (c->mlget_task.mlget_num >= ms_setting.mult_key_num)) - || ((c->remain_exec_num == 0) && (c->mlget_task.mlget_num > 0))) - { - c->mlget_task.value_index++; - mlget_item = &c->mlget_task.mlget_item[c->mlget_task.value_index]; - - c->curr_task.item = mlget_item->item; - c->curr_task.verify = mlget_item->verify; - c->curr_task.finish_verify = mlget_item->finish_verify; - mlget_item->get_miss = false; - } - - ms_verify_value(c, mlget_item, c->rcurr + extlen + keylen, c->rvbytes - extlen - keylen); - - c->currcmd.retstat = MCD_END; - c->curr_task.get_miss = false; - c->rbytes -= c->rvbytes; - c->rcurr = c->rcurr + c->rvbytes; - assert(c->rcurr <= (c->rbuf + c->rsize)); - c->readval = false; - c->rvbytes = 0; - - if (ms_setting.mult_key_num > 1) { - /* multi-get have check all the item */ - if (c->mlget_task.value_index == c->mlget_task.mlget_num - 1) { - ms_reset_conn(c, false); - } - } else { - /* single get */ - ms_reset_conn(c, false); - } -} /* ms_bin_complete_nread */ - -/** - * we get here after reading the value of get commands. - * - * @param c, pointer of the concurrency - */ -static void ms_complete_nread(ms_conn_t *c) { - assert(c); - assert(c->rbytes >= c->rvbytes); - assert(c->protocol == ascii_prot || c->protocol == binary_prot); - - if (c->protocol == binary_prot) { - ms_bin_complete_nread(c); - } else { - ms_ascii_complete_nread(c); - } -} /* ms_complete_nread */ - -/** - * Adds a message header to a connection. - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_add_msghdr(ms_conn_t *c) { - struct msghdr *msg; - - assert(c); - - if (c->msgsize == c->msgused) { - msg = realloc(c->msglist, (size_t) c->msgsize * 2 * sizeof(struct msghdr)); - if (!msg) - return -1; - - c->msglist = msg; - c->msgsize *= 2; - } - - msg = c->msglist + c->msgused; - - /** - * this wipes msg_iovlen, msg_control, msg_controllen, and - * msg_flags, the last 3 of which aren't defined on solaris: - */ - memset(msg, 0, sizeof(struct msghdr)); - - msg->msg_iov = &c->iov[c->iovused]; - - if (c->udp && (c->srv_recv_addr_size > 0)) { - msg->msg_name = &c->srv_recv_addr; - msg->msg_namelen = c->srv_recv_addr_size; - } - - c->msgbytes = 0; - c->msgused++; - - if (c->udp) { - /* Leave room for the UDP header, which we'll fill in later. */ - return ms_add_iov(c, NULL, UDP_HEADER_SIZE); - } - - return EXIT_SUCCESS; -} /* ms_add_msghdr */ - -/** - * Ensures that there is room for another structure iovec in a connection's - * iov list. - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_ensure_iov_space(ms_conn_t *c) { - assert(c); - - if (c->iovused >= c->iovsize) { - int i, iovnum; - struct iovec *new_iov = - (struct iovec *) realloc(c->iov, ((size_t) c->iovsize * 2) * sizeof(struct iovec)); - if (!new_iov) - return -1; - - c->iov = new_iov; - c->iovsize *= 2; - - /* Point all the msghdr structures at the new list. */ - for (i = 0, iovnum = 0; i < c->msgused; i++) { - c->msglist[i].msg_iov = &c->iov[iovnum]; - iovnum += (int) c->msglist[i].msg_iovlen; - } - } - - return EXIT_SUCCESS; -} /* ms_ensure_iov_space */ - -/** - * Adds data to the list of pending data that will be written out to a - * connection. - * - * @param c, pointer of the concurrency - * @param buf, the buffer includes data to send - * @param len, the data length in the buffer - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_add_iov(ms_conn_t *c, const void *buf, int len) { - struct msghdr *m; - int leftover; - bool limit_to_mtu; - - assert(c); - - do { - m = &c->msglist[c->msgused - 1]; - - /* - * Limit UDP packets, to UDP_MAX_PAYLOAD_SIZE bytes. - */ - limit_to_mtu = c->udp; - -#ifdef IOV_MAX - /* We may need to start a new msghdr if this one is full. */ - if ((m->msg_iovlen == IOV_MAX) || (limit_to_mtu && (c->msgbytes >= UDP_MAX_SEND_PAYLOAD_SIZE))) - { - ms_add_msghdr(c); - m = &c->msglist[c->msgused - 1]; - } -#endif - - if (ms_ensure_iov_space(c)) - return -1; - - /* If the fragment is too big to fit in the datagram, split it up */ - if (limit_to_mtu && (len + c->msgbytes > UDP_MAX_SEND_PAYLOAD_SIZE)) { - leftover = len + c->msgbytes - UDP_MAX_SEND_PAYLOAD_SIZE; - len -= leftover; - } else { - leftover = 0; - } - - m = &c->msglist[c->msgused - 1]; - m->msg_iov[m->msg_iovlen].iov_base = (void *) buf; - m->msg_iov[m->msg_iovlen].iov_len = (size_t) len; - - c->msgbytes += len; - c->iovused++; - m->msg_iovlen++; - - buf = ((char *) buf) + len; - len = leftover; - } while (leftover > 0); - - return EXIT_SUCCESS; -} /* ms_add_iov */ - -/** - * Constructs a set of UDP headers and attaches them to the outgoing messages. - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_build_udp_headers(ms_conn_t *c) { - int i; - unsigned char *hdr; - - assert(c); - - c->request_id = ms_get_udp_request_id(); - - if (c->msgused > c->hdrsize) { - void *new_hdrbuf; - if (c->hdrbuf) - new_hdrbuf = realloc(c->hdrbuf, (size_t) c->msgused * 2 * UDP_HEADER_SIZE); - else - new_hdrbuf = malloc((size_t) c->msgused * 2 * UDP_HEADER_SIZE); - if (!new_hdrbuf) - return -1; - - c->hdrbuf = (unsigned char *) new_hdrbuf; - c->hdrsize = c->msgused * 2; - } - - /* If this is a multi-packet request, drop it. */ - if (c->udp && (c->msgused > 1)) { - fprintf(stderr, "multi-packet request for UDP not supported.\n"); - return -1; - } - - hdr = c->hdrbuf; - for (i = 0; i < c->msgused; i++) { - c->msglist[i].msg_iov[0].iov_base = (void *) hdr; - c->msglist[i].msg_iov[0].iov_len = UDP_HEADER_SIZE; - *hdr++ = (unsigned char) (c->request_id / 256); - *hdr++ = (unsigned char) (c->request_id % 256); - *hdr++ = (unsigned char) (i / 256); - *hdr++ = (unsigned char) (i % 256); - *hdr++ = (unsigned char) (c->msgused / 256); - *hdr++ = (unsigned char) (c->msgused % 256); - *hdr++ = (unsigned char) 1; /* support facebook memcached */ - *hdr++ = (unsigned char) 0; - assert(hdr == ((unsigned char *) c->msglist[i].msg_iov[0].iov_base + UDP_HEADER_SIZE)); - } - - return EXIT_SUCCESS; -} /* ms_build_udp_headers */ - -/** - * Transmit the next chunk of data from our list of msgbuf structures. - * - * @param c, pointer of the concurrency - * - * @return TRANSMIT_COMPLETE All done writing. - * TRANSMIT_INCOMPLETE More data remaining to write. - * TRANSMIT_SOFT_ERROR Can't write any more right now. - * TRANSMIT_HARD_ERROR Can't write (c->state is set to conn_closing) - */ -static int ms_transmit(ms_conn_t *c) { - assert(c); - - if ((c->msgcurr < c->msgused) && (c->msglist[c->msgcurr].msg_iovlen == 0)) { - /* Finished writing the current msg; advance to the next. */ - c->msgcurr++; - } - - if (c->msgcurr < c->msgused) { - ssize_t res; - struct msghdr *m = &c->msglist[c->msgcurr]; - - res = sendmsg(c->sfd, m, 0); - if (res > 0) { - atomic_add_size(&ms_stats.bytes_written, res); - - /* We've written some of the data. Remove the completed - * iovec entries from the list of pending writes. */ - while (m->msg_iovlen > 0 && res >= (ssize_t) m->msg_iov->iov_len) { - res -= (ssize_t) m->msg_iov->iov_len; - m->msg_iovlen--; - m->msg_iov++; - } - - /* Might have written just part of the last iovec entry; - * adjust it so the next write will do the rest. */ - if (res > 0) { - m->msg_iov->iov_base = (void *) ((unsigned char *) m->msg_iov->iov_base + res); - m->msg_iov->iov_len -= (size_t) res; - } - return TRANSMIT_INCOMPLETE; - } - if ((res == -1) && ((errno == EAGAIN) || (errno == EWOULDBLOCK))) { - if (!ms_update_event(c, EV_WRITE | EV_PERSIST)) { - fprintf(stderr, "Couldn't update event.\n"); - ms_conn_set_state(c, conn_closing); - return TRANSMIT_HARD_ERROR; - } - return TRANSMIT_SOFT_ERROR; - } - - /* if res==0 or res==-1 and error is not EAGAIN or EWOULDBLOCK, - * we have a real error, on which we close the connection */ - fprintf(stderr, "Failed to write, and not due to blocking.\n"); - - ms_conn_set_state(c, conn_closing); - return TRANSMIT_HARD_ERROR; - } else { - return TRANSMIT_COMPLETE; - } -} /* ms_transmit */ - -/** - * Shrinks a connection's buffers if they're too big. This prevents - * periodic large "mget" response from server chewing lots of client - * memory. - * - * This should only be called in between requests since it can wipe output - * buffers! - * - * @param c, pointer of the concurrency - */ -static void ms_conn_shrink(ms_conn_t *c) { - assert(c); - - if (c->udp) - return; - - if ((c->rsize > READ_BUFFER_HIGHWAT) && (c->rbytes < DATA_BUFFER_SIZE)) { - char *newbuf; - - if (c->rcurr != c->rbuf) - memmove(c->rbuf, c->rcurr, (size_t) c->rbytes); - - newbuf = (char *) realloc((void *) c->rbuf, DATA_BUFFER_SIZE); - - if (newbuf) { - c->rbuf = newbuf; - c->rsize = DATA_BUFFER_SIZE; - } - c->rcurr = c->rbuf; - } - - if (c->udp && (c->rudpsize > UDP_DATA_BUFFER_HIGHWAT) - && (c->rudpbytes + UDP_MAX_PAYLOAD_SIZE < UDP_DATA_BUFFER_SIZE)) - { - char *new_rbuf = (char *) realloc(c->rudpbuf, (size_t) c->rudpsize * 2); - if (new_rbuf) { - c->rudpbuf = new_rbuf; - c->rudpsize = UDP_DATA_BUFFER_SIZE; - } - /* TODO check error condition? */ - } - - if (c->msgsize > MSG_LIST_HIGHWAT) { - struct msghdr *newbuf = - (struct msghdr *) realloc((void *) c->msglist, MSG_LIST_INITIAL * sizeof(c->msglist[0])); - if (newbuf) { - c->msglist = newbuf; - c->msgsize = MSG_LIST_INITIAL; - } - /* TODO check error condition? */ - } - - if (c->iovsize > IOV_LIST_HIGHWAT) { - struct iovec *newbuf = - (struct iovec *) realloc((void *) c->iov, IOV_LIST_INITIAL * sizeof(c->iov[0])); - if (newbuf) { - c->iov = newbuf; - c->iovsize = IOV_LIST_INITIAL; - } - /* TODO check return value */ - } -} /* ms_conn_shrink */ - -/** - * Sets a connection's current state in the state machine. Any special - * processing that needs to happen on certain state transitions can - * happen here. - * - * @param c, pointer of the concurrency - * @param state, connection state - */ -static void ms_conn_set_state(ms_conn_t *c, int state) { - assert(c); - - if (state != c->state) { - if (state == conn_read) { - ms_conn_shrink(c); - } - c->state = state; - } -} /* ms_conn_set_state */ - -/** - * update the event if socks change state. for example: when - * change the listen scoket read event to sock write event, or - * change socket handler, we could call this function. - * - * @param c, pointer of the concurrency - * @param new_flags, new event flags - * - * @return bool, if success, return true, else return false - */ -static bool ms_update_event(ms_conn_t *c, const int new_flags) { - assert(c); - - struct event_base *base = c->event.ev_base; - if ((c->ev_flags == new_flags) && (ms_setting.rep_write_srv == 0) - && (!ms_setting.facebook_test || (c->total_sfds == 1))) - { - return true; - } - - if (event_del(&c->event) == -1) { - /* try to delete the event again */ - if (event_del(&c->event) == -1) { - return false; - } - } - - event_set(&c->event, c->sfd, (short) new_flags, ms_event_handler, (void *) c); - event_base_set(base, &c->event); - c->ev_flags = (short) new_flags; - - if (event_add(&c->event, NULL) == -1) { - return false; - } - - return true; -} /* ms_update_event */ - -/** - * If user want to get the expected throughput, we could limit - * the performance of memslap. we could give up some work and - * just wait a short time. The function is used to check this - * case. - * - * @param c, pointer of the concurrency - * - * @return bool, if success, return true, else return false - */ -static bool ms_need_yield(ms_conn_t *c) { - ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); - int64_t tps = 0; - int64_t time_diff = 0; - struct timeval curr_time; - ms_task_t *task = &c->curr_task; - - if (ms_setting.expected_tps > 0) { - gettimeofday(&curr_time, NULL); - time_diff = ms_time_diff(&ms_thread->startup_time, &curr_time); - tps = (int64_t)(((task->get_opt + task->set_opt) / (uint64_t) time_diff) * 1000000); - - /* current throughput is greater than expected throughput */ - if (tps > ms_thread->thread_ctx->tps_perconn) { - return true; - } - } - - return false; -} /* ms_need_yield */ - -/** - * used to update the start time of each operation - * - * @param c, pointer of the concurrency - */ -static void ms_update_start_time(ms_conn_t *c) { - ms_task_item_t *item = c->curr_task.item; - - if ((ms_setting.stat_freq > 0) || c->udp || ((c->currcmd.cmd == CMD_SET) && (item->exp_time > 0))) - { - gettimeofday(&c->start_time, NULL); - if ((c->currcmd.cmd == CMD_SET) && (item->exp_time > 0)) { - /* record the current time */ - item->client_time = c->start_time.tv_sec; - } - } -} /* ms_update_start_time */ - -/** - * run the state machine - * - * @param c, pointer of the concurrency - */ -static void ms_drive_machine(ms_conn_t *c) { - bool stop = false; - - assert(c); - - while (!stop) { - switch (c->state) { - case conn_read: - if (c->readval) { - if (c->rbytes >= c->rvbytes) { - ms_complete_nread(c); - break; - } - } else { - if (ms_try_read_line(c)) { - break; - } - } - - if (ms_try_read_network(c)) { - break; - } - - /* doesn't read all the response data, wait event wake up */ - if (!c->currcmd.isfinish) { - if (!ms_update_event(c, EV_READ | EV_PERSIST)) { - fprintf(stderr, "Couldn't update event.\n"); - ms_conn_set_state(c, conn_closing); - break; - } - stop = true; - break; - } - - /* we have no command line and no data to read from network, next write */ - ms_conn_set_state(c, conn_write); - memcpy(&c->precmd, &c->currcmd, sizeof(ms_cmdstat_t)); /* replicate command state */ - - break; - - case conn_write: - if (!c->ctnwrite && ms_need_yield(c)) { - usleep(10); - - if (!ms_update_event(c, EV_WRITE | EV_PERSIST)) { - fprintf(stderr, "Couldn't update event.\n"); - ms_conn_set_state(c, conn_closing); - break; - } - stop = true; - break; - } - - if (!c->ctnwrite && (ms_exec_task(c))) { - ms_conn_set_state(c, conn_closing); - break; - } - - /* record the start time before starting to send data if necessary */ - if (!c->ctnwrite || (c->change_sfd && c->ctnwrite)) { - if (c->change_sfd) { - c->change_sfd = false; - } - ms_update_start_time(c); - } - - /* change sfd if necessary */ - if (c->change_sfd) { - c->ctnwrite = true; - stop = true; - break; - } - - /* execute task until nothing need be written to network */ - if (!c->ctnwrite && (c->msgcurr == c->msgused)) { - if (!ms_update_event(c, EV_WRITE | EV_PERSIST)) { - fprintf(stderr, "Couldn't update event.\n"); - ms_conn_set_state(c, conn_closing); - break; - } - stop = true; - break; - } - - switch (ms_transmit(c)) { - case TRANSMIT_COMPLETE: - /* we have no data to write to network, next wait repose */ - if (!ms_update_event(c, EV_READ | EV_PERSIST)) { - fprintf(stderr, "Couldn't update event.\n"); - ms_conn_set_state(c, conn_closing); - c->ctnwrite = false; - break; - } - ms_conn_set_state(c, conn_read); - c->ctnwrite = false; - stop = true; - break; - - case TRANSMIT_INCOMPLETE: - c->ctnwrite = true; - break; /* Continue in state machine. */ - - case TRANSMIT_HARD_ERROR: - c->ctnwrite = false; - break; - - case TRANSMIT_SOFT_ERROR: - c->ctnwrite = true; - stop = true; - break; - - default: - break; - } /* switch */ - - break; - - case conn_closing: - /* recovery mode, need reconnect if connection close */ - if (ms_setting.reconnect - && (!ms_global.time_out || ((ms_setting.run_time == 0) && (c->remain_exec_num > 0)))) - { - if (ms_reconn(c)) { - ms_conn_close(c); - stop = true; - break; - } - - ms_reset_conn(c, false); - - if (c->total_sfds == 1) { - if (!ms_update_event(c, EV_WRITE | EV_PERSIST)) { - fprintf(stderr, "Couldn't update event.\n"); - ms_conn_set_state(c, conn_closing); - break; - } - } - - break; - } else { - ms_conn_close(c); - stop = true; - break; - } - - default: - assert(0); - } /* switch */ - } -} /* ms_drive_machine */ - -/** - * the event handler of each thread - * - * @param fd, the file descriptor of socket - * @param which, event flag - * @param arg, argument - */ -void ms_event_handler(const int fd, const short which, void *arg) { - ms_conn_t *c = (ms_conn_t *) arg; - - assert(c); - - c->which = which; - - /* sanity */ - if (fd != c->sfd) { - fprintf(stderr, "Catastrophic: event fd: %d doesn't match conn fd: %d\n", fd, c->sfd); - ms_conn_close(c); - exit(1); - } - assert(fd == c->sfd); - - ms_drive_machine(c); - - /* wait for next event */ -} /* ms_event_handler */ - -/** - * get the next socket descriptor index to run for replication - * - * @param c, pointer of the concurrency - * @param cmd, command(get or set ) - * - * @return int, if success, return the index, else return EXIT_SUCCESS - */ -static uint32_t ms_get_rep_sock_index(ms_conn_t *c, int cmd) { - uint32_t sock_index = 0; - uint32_t i = 0; - - if (c->total_sfds == 1) { - return EXIT_SUCCESS; - } - - if (ms_setting.rep_write_srv == 0) { - return sock_index; - } - - do { - if (cmd == CMD_SET) { - for (i = 0; i < ms_setting.rep_write_srv; i++) { - if (c->tcpsfd[i] > 0) { - break; - } - } - - if (i == ms_setting.rep_write_srv) { - /* random get one replication server to read */ - sock_index = (uint32_t) random() % c->total_sfds; - } else { - /* random get one replication writing server to write */ - sock_index = (uint32_t) random() % ms_setting.rep_write_srv; - } - } else if (cmd == CMD_GET) { - /* random get one replication server to read */ - sock_index = (uint32_t) random() % c->total_sfds; - } - } while (c->tcpsfd[sock_index] == 0); - - return sock_index; -} /* ms_get_rep_sock_index */ - -/** - * get the next socket descriptor index to run - * - * @param c, pointer of the concurrency - * - * @return int, return the index - */ -static uint32_t ms_get_next_sock_index(ms_conn_t *c) { - uint32_t sock_index = 0; - - do { - sock_index = (++c->cur_idx == c->total_sfds) ? 0 : c->cur_idx; - } while (c->tcpsfd[sock_index] == 0); - - return sock_index; -} /* ms_get_next_sock_index */ - -/** - * update socket event of the connections - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_update_conn_sock_event(ms_conn_t *c) { - assert(c); - - switch (c->currcmd.cmd) { - case CMD_SET: - if (ms_setting.facebook_test && c->udp) { - c->sfd = c->tcpsfd[0]; - c->udp = false; - c->change_sfd = true; - } - break; - - case CMD_GET: - if (ms_setting.facebook_test && !c->udp) { - c->sfd = c->udpsfd; - c->udp = true; - c->change_sfd = true; - } - break; - - default: - break; - } /* switch */ - - if (!c->udp && (c->total_sfds > 1)) { - if (c->cur_idx != c->total_sfds) { - if (ms_setting.rep_write_srv == 0) { - c->cur_idx = ms_get_next_sock_index(c); - } else { - c->cur_idx = ms_get_rep_sock_index(c, c->currcmd.cmd); - } - } else { - /* must select the first sock of the connection at the beginning */ - c->cur_idx = 0; - } - - c->sfd = c->tcpsfd[c->cur_idx]; - assert(c->sfd); - c->change_sfd = true; - } - - if (c->change_sfd) { - if (!ms_update_event(c, EV_WRITE | EV_PERSIST)) { - fprintf(stderr, "Couldn't update event.\n"); - ms_conn_set_state(c, conn_closing); - return -1; - } - } - - return EXIT_SUCCESS; -} /* ms_update_conn_sock_event */ - -/** - * for ASCII protocol, this function build the set command - * string and send the command. - * - * @param c, pointer of the concurrency - * @param item, pointer of task item which includes the object - * information - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_build_ascii_write_buf_set(ms_conn_t *c, ms_task_item_t *item) { - int value_offset; - int write_len; - char *buffer = c->wbuf; - - write_len = snprintf(buffer, c->wsize, " %u %d %d\r\n", 0, item->exp_time, item->value_size); - - if (write_len > c->wsize || write_len < 0) { - /* ought to be always enough. just fail for simplicity */ - fprintf(stderr, "output command line too long.\n"); - return -1; - } - - if (item->value_offset == INVALID_OFFSET) { - value_offset = item->key_suffix_offset; - } else { - value_offset = item->value_offset; - } - - if ((ms_add_iov(c, "set ", 4)) - || (ms_add_iov(c, (char *) &item->key_prefix, (int) KEY_PREFIX_SIZE)) - || (ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset], - item->key_size - (int) KEY_PREFIX_SIZE) -) - || (ms_add_iov(c, buffer, write_len)) - || (ms_add_iov(c, &ms_setting.char_block[value_offset], item->value_size)) - || (ms_add_iov(c, "\r\n", 2)) || (c->udp && (ms_build_udp_headers(c)))) - { - return -1; - } - - return EXIT_SUCCESS; -} /* ms_build_ascii_write_buf_set */ - -/** - * used to send set command to server - * - * @param c, pointer of the concurrency - * @param item, pointer of task item which includes the object - * information - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -int ms_mcd_set(ms_conn_t *c, ms_task_item_t *item) { - assert(c); - - c->currcmd.cmd = CMD_SET; - c->currcmd.isfinish = false; - c->currcmd.retstat = MCD_FAILURE; - - if (ms_update_conn_sock_event(c)) { - return -1; - } - - c->msgcurr = 0; - c->msgused = 0; - c->iovused = 0; - if (ms_add_msghdr(c)) { - fprintf(stderr, "Out of memory preparing request."); - return -1; - } - - /* binary protocol */ - if (c->protocol == binary_prot) { - if (ms_build_bin_write_buf_set(c, item)) { - return -1; - } - } else { - if (ms_build_ascii_write_buf_set(c, item)) { - return -1; - } - } - - atomic_add_size(&ms_stats.obj_bytes, item->key_size + item->value_size); - atomic_add_size(&ms_stats.cmd_set, 1); - - return EXIT_SUCCESS; -} /* ms_mcd_set */ - -/** - * for ASCII protocol, this function build the get command - * string and send the command. - * - * @param c, pointer of the concurrency - * @param item, pointer of task item which includes the object - * information - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_build_ascii_write_buf_get(ms_conn_t *c, ms_task_item_t *item) { - if ((ms_add_iov(c, "get ", 4)) - || (ms_add_iov(c, (char *) &item->key_prefix, (int) KEY_PREFIX_SIZE)) - || (ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset], - item->key_size - (int) KEY_PREFIX_SIZE) -) - || (ms_add_iov(c, "\r\n", 2)) || (c->udp && (ms_build_udp_headers(c)))) - { - return -1; - } - - return EXIT_SUCCESS; -} /* ms_build_ascii_write_buf_get */ - -/** - * used to send the get command to server - * - * @param c, pointer of the concurrency - * @param item, pointer of task item which includes the object - * information - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -int ms_mcd_get(ms_conn_t *c, ms_task_item_t *item) { - assert(c); - - c->currcmd.cmd = CMD_GET; - c->currcmd.isfinish = false; - c->currcmd.retstat = MCD_FAILURE; - - if (ms_update_conn_sock_event(c)) { - return -1; - } - - c->msgcurr = 0; - c->msgused = 0; - c->iovused = 0; - if (ms_add_msghdr(c)) { - fprintf(stderr, "Out of memory preparing request."); - return -1; - } - - /* binary protocol */ - if (c->protocol == binary_prot) { - if (ms_build_bin_write_buf_get(c, item)) { - return -1; - } - } else { - if (ms_build_ascii_write_buf_get(c, item)) { - return -1; - } - } - - atomic_add_size(&ms_stats.cmd_get, 1); - - return EXIT_SUCCESS; -} /* ms_mcd_get */ - -/** - * for ASCII protocol, this function build the multi-get command - * string and send the command. - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_build_ascii_write_buf_mlget(ms_conn_t *c) { - ms_task_item_t *item; - - if (ms_add_iov(c, "get", 3)) { - return -1; - } - - for (int i = 0; i < c->mlget_task.mlget_num; i++) { - item = c->mlget_task.mlget_item[i].item; - assert(item); - if ((ms_add_iov(c, " ", 1)) - || (ms_add_iov(c, (char *) &item->key_prefix, (int) KEY_PREFIX_SIZE)) - || (ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset], - item->key_size - (int) KEY_PREFIX_SIZE) -)) - { - return -1; - } - } - - if ((ms_add_iov(c, "\r\n", 2)) || (c->udp && (ms_build_udp_headers(c)))) { - return -1; - } - - return EXIT_SUCCESS; -} /* ms_build_ascii_write_buf_mlget */ - -/** - * used to send the multi-get command to server - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -int ms_mcd_mlget(ms_conn_t *c) { - ms_task_item_t *item; - - assert(c); - assert(c->mlget_task.mlget_num >= 1); - - c->currcmd.cmd = CMD_GET; - c->currcmd.isfinish = false; - c->currcmd.retstat = MCD_FAILURE; - - if (ms_update_conn_sock_event(c)) { - return -1; - } - - c->msgcurr = 0; - c->msgused = 0; - c->iovused = 0; - if (ms_add_msghdr(c)) { - fprintf(stderr, "Out of memory preparing request."); - return -1; - } - - /* binary protocol */ - if (c->protocol == binary_prot) { - if (ms_build_bin_write_buf_mlget(c)) { - return -1; - } - } else { - if (ms_build_ascii_write_buf_mlget(c)) { - return -1; - } - } - - /* decrease operation time of each item */ - for (int i = 0; i < c->mlget_task.mlget_num; i++) { - item = c->mlget_task.mlget_item[i].item; - atomic_add_size(&ms_stats.cmd_get, 1); - } - - (void) item; - - return EXIT_SUCCESS; -} /* ms_mcd_mlget */ - -/** - * binary protocol support - */ - -/** - * for binary protocol, parse the response of server - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_bin_process_response(ms_conn_t *c) { - const char *errstr = NULL; - - assert(c); - - uint32_t bodylen = c->binary_header.response.bodylen; - uint8_t opcode = c->binary_header.response.opcode; - uint16_t status = c->binary_header.response.status; - - if (bodylen > 0) { - c->rvbytes = (int32_t) bodylen; - c->readval = true; - return EXIT_FAILURE; - } else { - switch (status) { - case PROTOCOL_BINARY_RESPONSE_SUCCESS: - if (opcode == PROTOCOL_BINARY_CMD_SET) { - c->currcmd.retstat = MCD_STORED; - } else if (opcode == PROTOCOL_BINARY_CMD_DELETE) { - c->currcmd.retstat = MCD_DELETED; - } else if (opcode == PROTOCOL_BINARY_CMD_GET) { - c->currcmd.retstat = MCD_END; - } - break; - - case PROTOCOL_BINARY_RESPONSE_ENOMEM: - errstr = "Out of memory"; - c->currcmd.retstat = MCD_SERVER_ERROR; - break; - - case PROTOCOL_BINARY_RESPONSE_UNKNOWN_COMMAND: - errstr = "Unknown command"; - c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; - break; - - case PROTOCOL_BINARY_RESPONSE_KEY_ENOENT: - errstr = "Not found"; - c->currcmd.retstat = MCD_NOTFOUND; - break; - - case PROTOCOL_BINARY_RESPONSE_EINVAL: - errstr = "Invalid arguments"; - c->currcmd.retstat = MCD_PROTOCOL_ERROR; - break; - - case PROTOCOL_BINARY_RESPONSE_KEY_EEXISTS: - errstr = "Data exists for key."; - break; - - case PROTOCOL_BINARY_RESPONSE_E2BIG: - errstr = "Too large."; - c->currcmd.retstat = MCD_SERVER_ERROR; - break; - - case PROTOCOL_BINARY_RESPONSE_NOT_STORED: - errstr = "Not stored."; - c->currcmd.retstat = MCD_NOTSTORED; - break; - - default: - errstr = "Unknown error"; - c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE; - break; - } /* switch */ - - if (errstr) { - fprintf(stderr, "%s\n", errstr); - } - } - - return EXIT_SUCCESS; -} /* ms_bin_process_response */ - -/* build binary header and add the header to the buffer to send */ - -/** - * build binary header and add the header to the buffer to send - * - * @param c, pointer of the concurrency - * @param opcode, operation code - * @param hdr_len, length of header - * @param key_len, length of key - * @param body_len. length of body - */ -static void ms_add_bin_header(ms_conn_t *c, uint8_t opcode, uint8_t hdr_len, uint16_t key_len, - uint32_t body_len) { - protocol_binary_request_header *header; - - assert(c); - - header = (protocol_binary_request_header *) c->wcurr; - - header->request.magic = (uint8_t) PROTOCOL_BINARY_REQ; - header->request.opcode = (uint8_t) opcode; - header->request.keylen = htons(key_len); - - header->request.extlen = (uint8_t) hdr_len; - header->request.datatype = (uint8_t) PROTOCOL_BINARY_RAW_BYTES; - header->request.vbucket = 0; - - header->request.bodylen = htonl(body_len); - header->request.opaque = 0; - header->request.cas = 0; - - ms_add_iov(c, c->wcurr, sizeof(header->request)); -} /* ms_add_bin_header */ - -/** - * add the key to the socket write buffer array - * - * @param c, pointer of the concurrency - * @param item, pointer of task item which includes the object - * information - */ -static void ms_add_key_to_iov(ms_conn_t *c, ms_task_item_t *item) { - ms_add_iov(c, (char *) &item->key_prefix, (int) KEY_PREFIX_SIZE); - ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset], - item->key_size - (int) KEY_PREFIX_SIZE); -} - -/** - * for binary protocol, this function build the set command - * and add the command to send buffer array. - * - * @param c, pointer of the concurrency - * @param item, pointer of task item which includes the object - * information - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_build_bin_write_buf_set(ms_conn_t *c, ms_task_item_t *item) { - assert(c->wbuf == c->wcurr); - - int value_offset; - protocol_binary_request_set *rep = (protocol_binary_request_set *) c->wcurr; - uint16_t keylen = (uint16_t) item->key_size; - uint32_t bodylen = - (uint32_t) sizeof(rep->message.body) + (uint32_t) keylen + (uint32_t) item->value_size; - - ms_add_bin_header(c, PROTOCOL_BINARY_CMD_SET, sizeof(rep->message.body), keylen, bodylen); - rep->message.body.flags = 0; - rep->message.body.expiration = htonl((uint32_t) item->exp_time); - ms_add_iov(c, &rep->message.body, sizeof(rep->message.body)); - ms_add_key_to_iov(c, item); - - if (item->value_offset == INVALID_OFFSET) { - value_offset = item->key_suffix_offset; - } else { - value_offset = item->value_offset; - } - ms_add_iov(c, &ms_setting.char_block[value_offset], item->value_size); - - return EXIT_SUCCESS; -} /* ms_build_bin_write_buf_set */ - -/** - * for binary protocol, this function build the get command and - * add the command to send buffer array. - * - * @param c, pointer of the concurrency - * @param item, pointer of task item which includes the object - * information - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_build_bin_write_buf_get(ms_conn_t *c, ms_task_item_t *item) { - assert(c->wbuf == c->wcurr); - - ms_add_bin_header(c, PROTOCOL_BINARY_CMD_GET, 0, (uint16_t) item->key_size, - (uint32_t) item->key_size); - ms_add_key_to_iov(c, item); - - return EXIT_SUCCESS; -} /* ms_build_bin_write_buf_get */ - -/** - * for binary protocol, this function build the multi-get - * command and add the command to send buffer array. - * - * @param c, pointer of the concurrency - * @param item, pointer of task item which includes the object - * information - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_build_bin_write_buf_mlget(ms_conn_t *c) { - ms_task_item_t *item; - - assert(c->wbuf == c->wcurr); - - for (int i = 0; i < c->mlget_task.mlget_num; i++) { - item = c->mlget_task.mlget_item[i].item; - assert(item); - - ms_add_bin_header(c, PROTOCOL_BINARY_CMD_GET, 0, (uint16_t) item->key_size, - (uint32_t) item->key_size); - ms_add_key_to_iov(c, item); - c->wcurr += sizeof(protocol_binary_request_get); - } - - c->wcurr = c->wbuf; - - return EXIT_SUCCESS; -} /* ms_build_bin_write_buf_mlget */ diff --git a/src/bin/contrib/memaslap/ms_conn.h b/src/bin/contrib/memaslap/ms_conn.h deleted file mode 100644 index 426eae82..00000000 --- a/src/bin/contrib/memaslap/ms_conn.h +++ /dev/null @@ -1,229 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#ifndef MS_CONN_H -#define MS_CONN_H - -#include -#include -#include -#include - -#include "ms_task.h" -#include "libmemcachedprotocol-0.0/binary.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define DATA_BUFFER_SIZE \ - (1024 * 1024 + 2048) /* read buffer, 1M + 2k, enough for the max value(1M) */ -#define WRITE_BUFFER_SIZE (32 * 1024) /* write buffer, 32k */ -#define UDP_DATA_BUFFER_SIZE (1 * 1024 * 1024) /* read buffer for UDP, 1M */ -#define UDP_MAX_PAYLOAD_SIZE 1400 /* server limit UDP payload size */ -#define UDP_MAX_SEND_PAYLOAD_SIZE 1400 /* mtu size is 1500 */ -#define UDP_HEADER_SIZE 8 /* UDP header size */ -#define MAX_SENDBUF_SIZE (256 * 1024 * 1024) /* Maximum socket buffer size */ -#define SOCK_WAIT_TIMEOUT 30 /* maximum waiting time of UDP, 30s */ -#define MAX_UDP_PACKET (1 << 16) /* maximum UDP packets, 65536 */ - -/* Initial size of the sendmsg() scatter/gather array. */ -#define IOV_LIST_INITIAL 400 - -/* Initial number of sendmsg() argument structures to allocate. */ -#define MSG_LIST_INITIAL 10 - -/* High water marks for buffer shrinking */ -#define READ_BUFFER_HIGHWAT (2 * DATA_BUFFER_SIZE) -#define UDP_DATA_BUFFER_HIGHWAT (4 * UDP_DATA_BUFFER_SIZE) -#define IOV_LIST_HIGHWAT 600 -#define MSG_LIST_HIGHWAT 100 - -/* parse udp header */ -#define HEADER_TO_REQID(ptr) ((uint16_t) *ptr * 256 + (uint16_t) * (ptr + 1)) -#define HEADER_TO_SEQNUM(ptr) ((uint16_t) * (ptr + 2) * 256 + (uint16_t) * (ptr + 3)) -#define HEADER_TO_PACKETS(ptr) ((uint16_t) * (ptr + 4) * 256 + (uint16_t) * (ptr + 5)) - -/* states of connection */ -enum conn_states { - conn_read, /* reading in a command line */ - conn_write, /* writing out a simple response */ - conn_closing /* closing this connection */ -}; - -/* returned states of memcached command */ -enum mcd_ret { - MCD_SUCCESS, /* command success */ - MCD_FAILURE, /* command failure */ - MCD_UNKNOWN_READ_FAILURE, /* unknown read failure */ - MCD_PROTOCOL_ERROR, /* protocol error */ - MCD_CLIENT_ERROR, /* client error, wrong command */ - MCD_SERVER_ERROR, /* server error, server run command failed */ - MCD_DATA_EXISTS, /* object is existent in server */ - MCD_NOTSTORED, /* server doesn't set the object successfully */ - MCD_STORED, /* server set the object successfully */ - MCD_NOTFOUND, /* server not find the object */ - MCD_END, /* end of the response of get command */ - MCD_DELETED, /* server delete the object successfully */ - MCD_STAT /* response of stats command */ -}; - -/* used to store the current or previous running command state */ -typedef struct cmdstat { - int cmd; /* command name */ - int retstat; /* return state of this command */ - bool isfinish; /* if it read all the response data */ - uint64_t key_prefix; /* key prefix */ -} ms_cmdstat_t; - -/* udp packet structure */ -typedef struct udppkt { - uint8_t *header; /* udp header of the packet */ - char *data; /* udp data of the packet */ - int rbytes; /* number of data in the packet */ - int copybytes; /* number of copied data in the packet */ -} ms_udppkt_t; - -/* three protocols supported */ -enum protocol { - ascii_prot = 3, /* ASCII protocol */ - binary_prot /* binary protocol */ -}; - -/** - * concurrency structure - * - * Each thread has a libevent to manage the events of network. - * Each thread has one or more self-governed concurrencies; - * each concurrency has one or more socket connections. This - * concurrency structure includes all the private variables of - * the concurrency. - */ -typedef struct conn { - uint32_t conn_idx; /* connection index in the thread */ - int sfd; /* current tcp sock handler of the connection structure */ - int udpsfd; /* current udp sock handler of the connection structure*/ - int state; /* state of the connection */ - struct event event; /* event for libevent */ - short ev_flags; /* event flag for libevent */ - short which; /* which events were just triggered */ - bool change_sfd; /* whether change sfd */ - - int *tcpsfd; /* TCP sock array */ - uint32_t total_sfds; /* how many socks in the tcpsfd array */ - uint32_t alive_sfds; /* alive socks */ - uint32_t cur_idx; /* current sock index in tcpsfd array */ - - ms_cmdstat_t precmd; /* previous command state */ - ms_cmdstat_t currcmd; /* current command state */ - - char *rbuf; /* buffer to read commands into */ - char *rcurr; /* but if we parsed some already, this is where we stopped */ - int rsize; /* total allocated size of rbuf */ - int rbytes; /* how much data, starting from rcur, do we have unparsed */ - - bool readval; /* read value state, read known data size */ - int rvbytes; /* total value size need to read */ - - char *wbuf; /* buffer to write commands out */ - char *wcurr; /* for multi-get, where we stopped */ - int wsize; /* total allocated size of wbuf */ - bool ctnwrite; /* continue to write */ - - /* data for the mwrite state */ - struct iovec *iov; - int iovsize; /* number of elements allocated in iov[] */ - int iovused; /* number of elements used in iov[] */ - - struct msghdr *msglist; - int msgsize; /* number of elements allocated in msglist[] */ - int msgused; /* number of elements used in msglist[] */ - int msgcurr; /* element in msglist[] being transmitted now */ - int msgbytes; /* number of bytes in current msg */ - - /* data for UDP clients */ - bool udp; /* is this is a UDP "connection" */ - uint32_t request_id; /* UDP request ID of current operation, if this is a UDP "connection" */ - uint8_t *hdrbuf; /* udp packet headers */ - int hdrsize; /* number of headers' worth of space is allocated */ - struct sockaddr srv_recv_addr; /* Sent the most recent request to which server */ - socklen_t srv_recv_addr_size; - - /* udp read buffer */ - char *rudpbuf; /* buffer to read commands into for udp */ - int rudpsize; /* total allocated size of rudpbuf */ - int rudpbytes; /* how much data, starting from rudpbuf */ - - /* order udp packet */ - ms_udppkt_t *udppkt; /* the offset of udp packet in rudpbuf */ - int packets; /* number of total packets need to read */ - int recvpkt; /* number of received packets */ - int pktcurr; /* current packet in rudpbuf being ordered */ - int ordcurr; /* current ordered packet */ - - ms_task_item_t *item_win; /* task sequence */ - int win_size; /* current task window size */ - uint64_t set_cursor; /* current set item index in the item window */ - ms_task_t curr_task; /* current running task */ - ms_mlget_task_t mlget_task; /* multi-get task */ - - int warmup_num; /* to run how many warm up operations*/ - int remain_warmup_num; /* left how many warm up operations to run */ - int64_t exec_num; /* to run how many task operations */ - int64_t remain_exec_num; /* how many remained task operations to run */ - - /* response time statistic and time out control */ - struct timeval start_time; /* start time of current operation(s) */ - struct timeval end_time; /* end time of current operation(s) */ - - /* Binary protocol stuff */ - protocol_binary_response_header binary_header; /* local temporary binary header */ - enum protocol protocol; /* which protocol this connection speaks */ -} ms_conn_t; - -/* used to generate the key prefix */ -uint64_t ms_get_key_prefix(void); - -/** - * setup a connection, each connection structure of each - * thread must call this function to initialize. - */ -int ms_setup_conn(ms_conn_t *c); - -/* after one operation completes, reset the connection */ -void ms_reset_conn(ms_conn_t *c, bool timeout); - -/** - * reconnect several disconnected socks in the connection - * structure, the ever-1-second timer of the thread will check - * whether some socks in the connections disconnect. if - * disconnect, reconnect the sock. - */ -int ms_reconn_socks(ms_conn_t *c); - -/* used to send set command to server */ -int ms_mcd_set(ms_conn_t *c, ms_task_item_t *item); - -/* used to send the get command to server */ -int ms_mcd_get(ms_conn_t *c, ms_task_item_t *item); - -/* used to send the multi-get command to server */ -int ms_mcd_mlget(ms_conn_t *c); - -#ifdef __cplusplus -} -#endif - -#endif /* end of MS_CONN_H */ diff --git a/src/bin/contrib/memaslap/ms_memslap.h b/src/bin/contrib/memaslap/ms_memslap.h deleted file mode 100644 index 36bb8f7f..00000000 --- a/src/bin/contrib/memaslap/ms_memslap.h +++ /dev/null @@ -1,133 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#ifndef MS_MEMSLAP_H -#define MS_MEMSLAP_H - -#include -#include -#include -#include -#include -#include -#include -#include -#if !defined(__cplusplus) -# include -#endif -#include - -#include "ms_stats.h" -#include "ms_atomic.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* command line option */ -typedef enum { - OPT_VERSION = 'V', - OPT_HELP = 'h', - OPT_UDP = 'U', - OPT_SERVERS = 's', - OPT_EXECUTE_NUMBER = 'x', - OPT_THREAD_NUMBER = 'T', - OPT_CONCURRENCY = 'c', - OPT_FIXED_LTH = 'X', - OPT_VERIFY = 'v', - OPT_GETS_DIVISION = 'd', - OPT_TIME = 't', - OPT_CONFIG_CMD = 'F', - OPT_WINDOW_SIZE = 'w', - OPT_EXPIRE = 'e', - OPT_STAT_FREQ = 'S', - OPT_RECONNECT = 'R', - OPT_VERBOSE = 'b', - OPT_FACEBOOK_TEST = 'a', - OPT_SOCK_PER_CONN = 'n', - OPT_BINARY_PROTOCOL = 'B', - OPT_OVERWRITE = 'o', - OPT_TPS = 'P', - OPT_REP_WRITE_SRV = 'p' -} ms_options_t; - -/* global statistic of response time */ -typedef struct statistic { - pthread_mutex_t stat_mutex; /* synchronize the following members */ - - ms_stat_t get_stat; /* statistics of get command */ - ms_stat_t set_stat; /* statistics of set command */ - ms_stat_t total_stat; /* statistics of both get and set commands */ -} ms_statistic_t; - -/* global status statistic structure */ -typedef struct stats { - ATOMIC uint32_t active_conns; /* active connections */ - ATOMIC size_t bytes_read; /* read bytes */ - ATOMIC size_t bytes_written; /* written bytes */ - ATOMIC size_t obj_bytes; /* object bytes */ - ATOMIC size_t pre_cmd_get; /* previous total get command count */ - ATOMIC size_t pre_cmd_set; /* previous total set command count */ - ATOMIC size_t cmd_get; /* current total get command count */ - ATOMIC size_t cmd_set; /* current total set command count */ - ATOMIC size_t get_misses; /* total objects of get miss */ - ATOMIC size_t vef_miss; /* total objects of verification miss */ - ATOMIC size_t vef_failed; /* total objects of verification failed */ - ATOMIC size_t unexp_unget; /* total objects which is unexpired but not get */ - ATOMIC size_t exp_get; /* total objects which is expired but get */ - ATOMIC size_t pkt_disorder; /* disorder packages of UDP */ - ATOMIC size_t pkt_drop; /* packages dropped of UDP */ - ATOMIC size_t udp_timeout; /* how many times timeout of UDP happens */ -} ms_stats_t; - -/* lock adapter */ -typedef struct sync_lock { - uint32_t count; - pthread_mutex_t lock; - pthread_cond_t cond; -} ms_sync_lock_t; - -/* global variable structure */ -typedef struct global { - /* synchronize lock */ - ms_sync_lock_t init_lock; - ms_sync_lock_t warmup_lock; - ms_sync_lock_t run_lock; - - /* mutex for outputing error log synchronously when memslap crashes */ - pthread_mutex_t quit_mutex; - - /* mutex for generating key prefix */ - pthread_mutex_t seq_mutex; - - /* global synchronous flags for slap mode */ - bool finish_warmup; - bool time_out; -} ms_global_t; - -/* global structure */ -extern ms_global_t ms_global; - -/* global stats information structure */ -extern ms_stats_t ms_stats; - -/* global statistic structure */ -extern ms_statistic_t ms_statistic; - -#ifdef __cplusplus -} -#endif - -#endif /* end of MS_MEMSLAP_H */ diff --git a/src/bin/contrib/memaslap/ms_setting.c b/src/bin/contrib/memaslap/ms_setting.c deleted file mode 100644 index 9d328ddc..00000000 --- a/src/bin/contrib/memaslap/ms_setting.c +++ /dev/null @@ -1,900 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#include "mem_config.h" - -#include "libmemcached/memcached.h" - -#include -#include -#include -#include -#include -#include -#include - -#include "ms_setting.h" -#include "ms_conn.h" - -#define MAX_EXEC_NUM 0x4000000000000000 /* 1 << 62 */ -#define ADDR_ALIGN(addr) ((addr + 15) & ~(16 - 1)) /* 16 bytes aligned */ -#define RAND_CHAR_SIZE (10 * 1024 * 1024) /* 10M character table */ -#define RESERVED_RAND_CHAR_SIZE (2 * 1024 * 1024) /* reserved 2M to avoid pointer sloping over */ - -#define DEFAULT_CONFIG_NAME ".memslap.cnf" - -#define DEFAULT_THREADS_NUM 1 /* default start one thread */ -#define DEFAULT_CONNS_NUM 16 /* default each thread with 16 connections */ -#define DEFAULT_EXE_NUM 0 /* default execute number is 0 */ -#define DEFAULT_VERIFY_RATE 0.0 /* default it doesn't do data verification */ -#define DEFAULT_OVERWRITE_RATE 0.0 /* default it doesn't do overwrite */ -#define DEFAULT_DIV 1 /* default it runs single get */ -#define DEFAULT_RUN_TIME 600 /* default run time 10 minutes */ -#define DEFAULT_WINDOW_SIZE (10 * UNIT_ITEMS_COUNT) /* default window size is 10k */ -#define DEFAULT_SOCK_PER_CONN 1 /* default socks per connection is 1 */ - -/* Use this for string generation */ -#define CHAR_COUNT 64 /* number of characters used to generate character table */ -const char ALPHANUMBERICS[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.-"; - -ms_setting_st ms_setting; /* store the settings specified by user */ - -/* read setting from configuration file */ -static void ms_get_serverlist(char *str); -static uint32_t ms_get_cpu_count(void); -ms_conf_type_t ms_get_conf_type(char *line); -static int ms_is_line_data(char *line); -static int ms_read_is_data(char *line, ssize_t nread); -static void ms_no_config_file(void); -static void ms_parse_cfg_file(char *cfg_file); - -/* initialize setting structure */ -static void ms_init_random_block(void); -static void ms_calc_avg_size(void); -static int ms_shuffle_distr(ms_distr_t *distr, int length); -static void ms_build_distr(void); -static void ms_print_setting(void); -static void ms_setting_slapmode_init_pre(void); -static void ms_setting_slapmode_init_post(void); - -#if !defined(HAVE_GETLINE) -# include -static ssize_t getline(char **line, size_t *line_size, FILE *fp) { - char delim = '\n'; - ssize_t result = 0; - size_t cur_len = 0; - - if (line == NULL || line_size == NULL || fp == NULL) { - errno = EINVAL; - return -1; - } - - if (*line == NULL || *line_size == 0) { - char *new_line; - *line_size = 120; - new_line = (char *) realloc(*line, *line_size); - if (new_line == NULL) { - result = -1; - return result; - } - *line = new_line; - } - - for (;;) { - int i = getc(fp); - if (i == EOF) { - result = -1; - break; - } - - /* Make enough space for len+1 (for final NUL) bytes. */ - if (cur_len + 1 >= *line_size) { - size_t needed_max = SSIZE_MAX < SIZE_MAX ? (size_t) SSIZE_MAX + 1 : SIZE_MAX; - size_t needed = (2 * (*line_size)) + 1; - char *new_line; - - if (needed_max < needed) - needed = needed_max; - if (cur_len + 1 >= needed) { - result = -1; - errno = EOVERFLOW; - return result; - } - - new_line = (char *) realloc(*line, needed); - if (new_line == NULL) { - result = -1; - return result; - } - - *line = new_line; - *line_size = needed; - } - - (*line)[cur_len] = (char) i; - cur_len++; - - if (i == delim) - break; - } - (*line)[cur_len] = '\0'; - if (cur_len) - return (ssize_t) cur_len; - return result; -} -#endif - -/** - * parse the server list string, and build the servers - * information structure array. this function is used to parse - * the command line options specified by user. - * - * @param str, the string of server list - */ -static void ms_get_serverlist(char *str) { - ms_mcd_server_t *srvs = NULL; - - /** - * Servers list format is like this. For example: - * "localhost:11108, localhost:11109" - */ - memcached_server_st *server_pool; - server_pool = memcached_servers_parse(str); - - for (uint32_t loop = 0; loop < memcached_server_list_count(server_pool); loop++) { - assert(ms_setting.srv_cnt < ms_setting.total_srv_cnt); - strcpy(ms_setting.servers[ms_setting.srv_cnt].srv_host_name, server_pool[loop].hostname); - ms_setting.servers[ms_setting.srv_cnt].srv_port = server_pool[loop].port; - ms_setting.servers[ms_setting.srv_cnt].disconn_cnt = 0; - ms_setting.servers[ms_setting.srv_cnt].reconn_cnt = 0; - ms_setting.srv_cnt++; - - if (ms_setting.srv_cnt >= ms_setting.total_srv_cnt) { - srvs = (ms_mcd_server_t *) realloc( - ms_setting.servers, (size_t) ms_setting.total_srv_cnt * sizeof(ms_mcd_server_t) * 2); - if (srvs == NULL) { - fprintf(stderr, "Can't reallocate servers structure.\n"); - exit(1); - } - ms_setting.servers = srvs; - ms_setting.total_srv_cnt *= 2; - } - } - - memcached_server_free(server_pool); -} /* ms_get_serverlist */ - -/** - * used to get the CPU count of the current system - * - * @return return the cpu count if get, else return EXIT_FAILURE - */ -static uint32_t ms_get_cpu_count() { -#ifdef HAVE__SC_NPROCESSORS_ONLN - return sysconf(_SC_NPROCESSORS_CONF); - -#else -# ifdef HAVE_CPU_SET_T - int cpu_count = 0; - cpu_set_t cpu_set; - - sched_getaffinity(0, sizeof(cpu_set_t), &cpu_set); - - for (int i = 0; i < (sizeof(cpu_set_t) * 8); i++) { - if (CPU_ISSET(i, &cpu_set)) { - cpu_count++; - } - } - - return cpu_count; - -# endif -#endif - - /* the system with one cpu at least */ - return EXIT_FAILURE; -} /* ms_get_cpu_count */ - -/** - * used to get the configure type based on the type string read - * from the configuration file. - * - * @param line, string of one line - * - * @return ms_conf_type_t - */ -ms_conf_type_t ms_get_conf_type(char *line) { - if (!memcmp(line, "key", strlen("key"))) { - return CONF_KEY; - } else if (!memcmp(line, "value", strlen("value"))) { - return CONF_VALUE; - } else if (!memcmp(line, "cmd", strlen("cmd"))) { - return CONF_CMD; - } else { - return CONF_NULL; - } -} /* ms_get_conf_type */ - -/** - * judge whether the line is a line with useful data. used to - * parse the configuration file. - * - * @param line, string of one line - * - * @return if success, return EXIT_FAILURE, else return EXIT_SUCCESS - */ -static int ms_is_line_data(char *line) { - assert(line); - - char *begin_ptr = line; - - while (isspace(*begin_ptr)) { - begin_ptr++; - } - if ((begin_ptr[0] == '\0') || (begin_ptr[0] == '#')) - return EXIT_SUCCESS; - - return EXIT_FAILURE; -} /* ms_is_line_data */ - -/** - * function to bypass blank line and comments - * - * @param line, string of one line - * @param nread, length of the line - * - * @return if it's EOF or not line data, return EXIT_SUCCESS, else return EXIT_FAILURE - */ -static int ms_read_is_data(char *line, ssize_t nread) { - if ((nread == EOF) || !ms_is_line_data(line)) - return EXIT_SUCCESS; - - return EXIT_FAILURE; -} /* ms_read_is_data */ - -/** - * if no configuration file, use this function to create the default - * configuration file. - */ -static void ms_no_config_file() { - char userpath[PATH_MAX]; - struct passwd *usr = NULL; - FILE *fd; - - usr = getpwuid(getuid()); - - snprintf(userpath, PATH_MAX, "%s/%s", usr->pw_dir, DEFAULT_CONFIG_NAME); - - if (access(userpath, F_OK | R_OK) == 0) - goto exit; - - fd = fopen(userpath, "w+"); - - if (fd == NULL) { - fprintf(stderr, "Could not create default configure file %s\n", userpath); - perror("fopen"); - exit(1); - } - fprintf(fd, "%s", DEFAULT_CONGIF_STR); - fclose(fd); - -exit: - ms_setting.cfg_file = strdup(userpath); -} /* ms_no_config_file */ - -/** - * parse the configuration file - * - * @param cfg_file, the configuration file name - */ -static void ms_parse_cfg_file(char *cfg_file) { - FILE *f; - size_t start_len, end_len; - double proportion; - char *line = NULL; - size_t read_len; - ssize_t nread; - int cmd_type; - ms_conf_type_t conf_type; - int end_of_file = 0; - ms_key_distr_t *key_distr = NULL; - ms_value_distr_t *val_distr = NULL; - - if (cfg_file == NULL) { - ms_no_config_file(); - cfg_file = ms_setting.cfg_file; - } - - /*read key value configure file*/ - if ((f = fopen(cfg_file, "r")) == NULL) { - fprintf(stderr, "Can not open file: '%s'.\n", cfg_file); - exit(1); - } - - while (1) { - if ((((nread = getline(&line, &read_len, f)) == 1) || !ms_read_is_data(line, nread)) - && (nread != EOF)) /* bypass blank line */ - continue; - - if (nread == EOF) { - fprintf(stderr, "Bad configuration file, no configuration find.\n"); - exit(1); - } - conf_type = ms_get_conf_type(line); - break; - } - - while (!end_of_file) { - switch (conf_type) { - case CONF_KEY: - while (1) { - if ((((nread = getline(&line, &read_len, f)) == 1) || !ms_read_is_data(line, nread)) - && (nread != EOF)) /* bypass blank line */ - continue; - - if (nread != EOF) { - if (sscanf(line, "%zu %zu %lf ", &start_len, &end_len, &proportion) != 3) { - conf_type = ms_get_conf_type(line); - break; - } - ms_setting.key_distr[ms_setting.key_rng_cnt].start_len = start_len; - ms_setting.key_distr[ms_setting.key_rng_cnt].end_len = end_len; - ms_setting.key_distr[ms_setting.key_rng_cnt].key_prop = proportion; - ms_setting.key_rng_cnt++; - - if (ms_setting.key_rng_cnt >= ms_setting.total_key_rng_cnt) { - key_distr = (ms_key_distr_t *) realloc(ms_setting.key_distr, - (size_t) ms_setting.total_key_rng_cnt - * sizeof(ms_key_distr_t) * 2); - if (key_distr == NULL) { - fprintf(stderr, "Can't reallocate key distribution structure.\n"); - exit(1); - } - ms_setting.key_distr = key_distr; - ms_setting.total_key_rng_cnt *= 2; - } - continue; - } - end_of_file = 1; - break; - } - break; - - case CONF_VALUE: - while (1) { - if ((((nread = getline(&line, &read_len, f)) == 1) || !ms_read_is_data(line, nread)) - && (nread != EOF)) /* bypass blank line */ - continue; - - if (nread != EOF) { - if (sscanf(line, "%zu %zu %lf", &start_len, &end_len, &proportion) != 3) { - conf_type = ms_get_conf_type(line); - break; - } - ms_setting.value_distr[ms_setting.val_rng_cnt].start_len = start_len; - ms_setting.value_distr[ms_setting.val_rng_cnt].end_len = end_len; - ms_setting.value_distr[ms_setting.val_rng_cnt].value_prop = proportion; - ms_setting.val_rng_cnt++; - - if (ms_setting.val_rng_cnt >= ms_setting.total_val_rng_cnt) { - val_distr = (ms_value_distr_t *) realloc(ms_setting.value_distr, - (size_t) ms_setting.total_val_rng_cnt - * sizeof(ms_value_distr_t) * 2); - if (val_distr == NULL) { - fprintf(stderr, "Can't reallocate key distribution structure.\n"); - exit(1); - } - ms_setting.value_distr = val_distr; - ms_setting.total_val_rng_cnt *= 2; - } - continue; - } - end_of_file = 1; - break; - } - break; - - case CONF_CMD: - while (1) { - if ((((nread = getline(&line, &read_len, f)) == 1) || !ms_read_is_data(line, nread)) - && (nread != EOF)) /* bypass blank line */ - continue; - - if (nread != EOF) { - if (sscanf(line, "%d %lf", &cmd_type, &proportion) != 2) { - conf_type = ms_get_conf_type(line); - break; - } - if (cmd_type >= CMD_NULL) { - continue; - } - ms_setting.cmd_distr[ms_setting.cmd_used_count].cmd_type = cmd_type; - ms_setting.cmd_distr[ms_setting.cmd_used_count].cmd_prop = proportion; - ms_setting.cmd_used_count++; - continue; - } - end_of_file = 1; - break; - } - - case CONF_NULL: - while (1) { - if ((((nread = getline(&line, &read_len, f)) == 1) || !ms_read_is_data(line, nread)) - && (nread != EOF)) /* bypass blank line */ - continue; - - if (nread != EOF) { - if ((conf_type = ms_get_conf_type(line)) != CONF_NULL) { - break; - } - continue; - } - end_of_file = 1; - break; - } - break; - - default: - assert(0); - break; - } /* switch */ - } - - fclose(f); - - if (line) { - free(line); - } -} /* ms_parse_cfg_file */ - -/* calculate the average size of key and value */ -static void ms_calc_avg_size() { - double avg_val_size = 0.0; - double avg_key_size = 0.0; - double val_pro = 0.0; - double key_pro = 0.0; - double averge_len = 0.0; - size_t start_len = 0; - size_t end_len = 0; - - for (int j = 0; j < ms_setting.val_rng_cnt; j++) { - val_pro = ms_setting.value_distr[j].value_prop; - start_len = ms_setting.value_distr[j].start_len; - end_len = ms_setting.value_distr[j].end_len; - - averge_len = val_pro * ((double) (start_len + end_len)) / 2; - avg_val_size += averge_len; - } - - for (int j = 0; j < ms_setting.key_rng_cnt; j++) { - key_pro = ms_setting.key_distr[j].key_prop; - start_len = ms_setting.key_distr[j].start_len; - end_len = ms_setting.key_distr[j].end_len; - - averge_len = key_pro * ((double) (start_len + end_len)) / 2; - avg_key_size += averge_len; - } - - ms_setting.avg_val_size = (size_t) avg_val_size; - ms_setting.avg_key_size = (size_t) avg_key_size; -} /* ms_calc_avg_size */ - -/** - * used to shuffle key and value distribution array to ensure - * (key, value) pair with different set. - * - * @param distr, pointer of distribution structure array - * @param length, length of the array - * - * @return always return EXIT_SUCCESS - */ -static int ms_shuffle_distr(ms_distr_t *distr, int length) { - int i, j; - int tmp_offset; - size_t tmp_size; - int64_t rnd; - - for (i = 0; i < length; i++) { - rnd = random(); - j = (int) (rnd % (length - i)) + i; - - switch (rnd % 3) { - case 0: - tmp_size = distr[j].key_size; - distr[j].key_size = distr[i].key_size; - distr[i].key_size = tmp_size; - break; - - case 1: - tmp_offset = distr[j].key_offset; - distr[j].key_offset = distr[i].key_offset; - distr[i].key_offset = tmp_offset; - break; - - case 2: - tmp_size = distr[j].value_size; - distr[j].value_size = distr[i].value_size; - distr[i].value_size = tmp_size; - break; - - default: - break; - } /* switch */ - } - - return EXIT_SUCCESS; -} /* ms_shuffle_distr */ - -/** - * according to the key and value distribution, to build the - * (key, value) pair distribution. the (key, value) pair - * distribution array is global, each connection set or get - * object keeping this distribution, for the final result, we - * can reach the expected key and value distribution. - */ -static void ms_build_distr() { - int offset = 0; - int end = 0; - int key_cnt = 0; - int value_cnt = 0; - size_t average_len = 0; - size_t diff_len = 0; - size_t start_len = 0; - size_t end_len = 0; - int rnd = 0; - ms_distr_t *distr = NULL; - int units = (int) ms_setting.win_size / UNIT_ITEMS_COUNT; - - /* calculate average value size and key size */ - ms_calc_avg_size(); - - ms_setting.char_blk_size = RAND_CHAR_SIZE; - int key_scope_size = - (int) ((ms_setting.char_blk_size - RESERVED_RAND_CHAR_SIZE) / UNIT_ITEMS_COUNT); - - ms_setting.distr = (ms_distr_t *) malloc(sizeof(ms_distr_t) * ms_setting.win_size); - if (ms_setting.distr == NULL) { - fprintf(stderr, "Can't allocate distribution array."); - exit(1); - } - - /** - * character block is divided by how many different key - * size, each different key size has the same size character - * range. - */ - for (int m = 0; m < units; m++) { - for (int i = 0; i < UNIT_ITEMS_COUNT; i++) { - ms_setting.distr[m * UNIT_ITEMS_COUNT + i].key_offset = ADDR_ALIGN(key_scope_size * i); - } - } - - /* initialize key size distribution */ - for (int m = 0; m < units; m++) { - for (int j = 0; j < ms_setting.key_rng_cnt; j++) { - key_cnt = (int) (UNIT_ITEMS_COUNT * ms_setting.key_distr[j].key_prop); - start_len = ms_setting.key_distr[j].start_len; - end_len = ms_setting.key_distr[j].end_len; - if ((start_len < MIN_KEY_SIZE) || (end_len < MIN_KEY_SIZE)) { - fprintf(stderr, "key length must be greater than 16 bytes.\n"); - exit(1); - } - - if (!ms_setting.binary_prot_ && ((start_len > MAX_KEY_SIZE) || (end_len > MAX_KEY_SIZE))) { - fprintf(stderr, "key length must be less than 250 bytes.\n"); - exit(1); - } - - average_len = (start_len + end_len) / 2; - diff_len = (end_len - start_len) / 2; - for (int k = 0; k < key_cnt; k++) { - if (offset >= (m + 1) * UNIT_ITEMS_COUNT) { - break; - } - rnd = (int) random(); - if (k % 2 == 0) { - ms_setting.distr[offset].key_size = - (diff_len == 0) ? average_len : average_len + (size_t) rnd % diff_len; - } else { - ms_setting.distr[offset].key_size = - (diff_len == 0) ? average_len : average_len - (size_t) rnd % diff_len; - } - offset++; - } - } - - if (offset < (m + 1) * UNIT_ITEMS_COUNT) { - end = (m + 1) * UNIT_ITEMS_COUNT - offset; - for (int i = 0; i < end; i++) { - ms_setting.distr[offset].key_size = ms_setting.avg_key_size; - offset++; - } - } - } - offset = 0; - - /* initialize value distribution */ - if (ms_setting.fixed_value_size) { - for (int i = 0; i < units * UNIT_ITEMS_COUNT; i++) { - ms_setting.distr[i].value_size = ms_setting.fixed_value_size; - } - } else { - for (int m = 0; m < units; m++) { - for (int j = 0; j < ms_setting.val_rng_cnt; j++) { - value_cnt = (int) (UNIT_ITEMS_COUNT * ms_setting.value_distr[j].value_prop); - start_len = ms_setting.value_distr[j].start_len; - end_len = ms_setting.value_distr[j].end_len; - if ((start_len <= 0) || (end_len <= 0)) { - fprintf(stderr, "value length must be greater than 0 bytes.\n"); - exit(1); - } - - if ((start_len > MAX_VALUE_SIZE) || (end_len > MAX_VALUE_SIZE)) { - fprintf(stderr, "key length must be less than or equal to 1M.\n"); - exit(1); - } - - average_len = (start_len + end_len) / 2; - diff_len = (end_len - start_len) / 2; - for (int k = 0; k < value_cnt; k++) { - if (offset >= (m + 1) * UNIT_ITEMS_COUNT) { - break; - } - rnd = (int) random(); - if (k % 2 == 0) { - ms_setting.distr[offset].value_size = - (diff_len == 0) ? average_len : average_len + (size_t) rnd % diff_len; - } else { - ms_setting.distr[offset].value_size = - (diff_len == 0) ? average_len : average_len - (size_t) rnd % diff_len; - } - offset++; - } - } - - if (offset < (m + 1) * UNIT_ITEMS_COUNT) { - end = (m + 1) * UNIT_ITEMS_COUNT - offset; - for (int i = 0; i < end; i++) { - ms_setting.distr[offset++].value_size = ms_setting.avg_val_size; - } - } - } - } - - /* shuffle distribution */ - for (int i = 0; i < units; i++) { - distr = &ms_setting.distr[i * UNIT_ITEMS_COUNT]; - for (int j = 0; j < 4; j++) { - ms_shuffle_distr(distr, UNIT_ITEMS_COUNT); - } - } -} /* ms_build_distr */ - -/** - * used to initialize the global character block. The character - * block is used to generate the suffix of the key and value. we - * only store a pointer in the character block for each key - * suffix or value string. It can save much memory to store key - * or value string. - */ -static void ms_init_random_block() { - char *ptr = NULL; - - assert(ms_setting.char_blk_size > 0); - - ms_setting.char_block = (char *) malloc(ms_setting.char_blk_size); - if (ms_setting.char_block == NULL) { - fprintf(stderr, "Can't allocate global char block."); - exit(1); - } - ptr = ms_setting.char_block; - - for (int i = 0; (size_t) i < ms_setting.char_blk_size; i++) { - *(ptr++) = ALPHANUMBERICS[random() % CHAR_COUNT]; - } -} /* ms_init_random_block */ - -/** - * after initialization, call this function to output the main - * configuration user specified. - */ -static void ms_print_setting() { - fprintf(stdout, "servers: %s\n", ms_setting.srv_str); - fprintf(stdout, "threads count: %d\n", ms_setting.nthreads); - fprintf(stdout, "concurrency: %d\n", ms_setting.nconns); - if (ms_setting.run_time > 0) { - fprintf(stdout, "run time: %ds\n", ms_setting.run_time); - } else { - fprintf(stdout, "execute number: %" PRId64 "\n", ms_setting.exec_num); - } - fprintf(stdout, "windows size: %" PRId64 "k\n", (int64_t)(ms_setting.win_size / 1024)); - fprintf(stdout, "set proportion: set_prop=%.2f\n", ms_setting.cmd_distr[CMD_SET].cmd_prop); - fprintf(stdout, "get proportion: get_prop=%.2f\n", ms_setting.cmd_distr[CMD_GET].cmd_prop); - fflush(stdout); -} /* ms_print_setting */ - -/** - * previous part of slap mode initialization of setting structure - */ -static void ms_setting_slapmode_init_pre() { - ms_setting.exec_num = DEFAULT_EXE_NUM; - ms_setting.verify_percent = DEFAULT_VERIFY_RATE; - ms_setting.exp_ver_per = DEFAULT_VERIFY_RATE; - ms_setting.overwrite_percent = DEFAULT_OVERWRITE_RATE; - ms_setting.mult_key_num = DEFAULT_DIV; - ms_setting.fixed_value_size = 0; - ms_setting.win_size = DEFAULT_WINDOW_SIZE; - ms_setting.udp = false; - ms_setting.reconnect = false; - ms_setting.verbose = false; - ms_setting.facebook_test = false; - ms_setting.binary_prot_ = false; - ms_setting.stat_freq = 0; - ms_setting.srv_str = NULL; - ms_setting.cfg_file = NULL; - ms_setting.sock_per_conn = DEFAULT_SOCK_PER_CONN; - ms_setting.expected_tps = 0; - ms_setting.rep_write_srv = 0; -} /* ms_setting_slapmode_init_pre */ - -/** - * previous part of initialization of setting structure - */ -void ms_setting_init_pre() { - memset(&ms_setting, 0, sizeof(ms_setting)); - - /* common initialize */ - ms_setting.ncpu = ms_get_cpu_count(); - ms_setting.nthreads = DEFAULT_THREADS_NUM; - ms_setting.nconns = DEFAULT_CONNS_NUM; - ms_setting.run_time = DEFAULT_RUN_TIME; - ms_setting.total_srv_cnt = MCD_SRVS_NUM_INIT; - ms_setting.servers = - (ms_mcd_server_t *) malloc((size_t) ms_setting.total_srv_cnt * sizeof(ms_mcd_server_t)); - if (ms_setting.servers == NULL) { - fprintf(stderr, "Can't allocate servers structure.\n"); - exit(1); - } - - ms_setting_slapmode_init_pre(); -} /* ms_setting_init_pre */ - -/** - * post part of slap mode initialization of setting structure - */ -static void ms_setting_slapmode_init_post() { - ms_setting.total_key_rng_cnt = KEY_RANGE_COUNT_INIT; - ms_setting.key_distr = - (ms_key_distr_t *) malloc((size_t) ms_setting.total_key_rng_cnt * sizeof(ms_key_distr_t)); - - if (ms_setting.key_distr == NULL) { - fprintf(stderr, "Can't allocate key distribution structure.\n"); - exit(1); - } - - ms_setting.total_val_rng_cnt = VALUE_RANGE_COUNT_INIT; - - ms_setting.value_distr = - (ms_value_distr_t *) malloc((size_t) ms_setting.total_val_rng_cnt * sizeof(ms_value_distr_t)); - - if (ms_setting.value_distr == NULL) { - fprintf(stderr, "Can't allocate value distribution structure.\n"); - exit(1); - } - - ms_parse_cfg_file(ms_setting.cfg_file); - - /* run time mode */ - if ((ms_setting.exec_num == 0) && (ms_setting.run_time)) { - ms_setting.exec_num = (int64_t) MAX_EXEC_NUM; - } else { - /* execute number mode */ - ms_setting.run_time = 0; - } - - if (ms_setting.rep_write_srv > 0) { - /* for replication test, need enable reconnect feature */ - ms_setting.reconnect = true; - } - - if (ms_setting.facebook_test && (ms_setting.mult_key_num < 2)) { - fprintf(stderr, - "facebook test must work with multi-get, " - "please specify multi-get key number " - "with '--division' option.\n"); - exit(1); - } - - if (ms_setting.facebook_test && ms_setting.udp) { - fprintf(stderr, "facebook test couldn't work with UDP.\n"); - exit(1); - } - - if (ms_setting.udp && (ms_setting.sock_per_conn > 1)) { - fprintf(stderr, - "UDP doesn't support multi-socks " - "in one connection structure.\n"); - exit(1); - } - - if ((ms_setting.rep_write_srv > 0) && (ms_setting.srv_cnt < 2)) { - fprintf(stderr, "Please specify 2 servers at least for replication\n"); - exit(1); - } - - if ((ms_setting.rep_write_srv > 0) && (ms_setting.srv_cnt < ms_setting.rep_write_srv)) { - fprintf(stderr, - "Servers to do replication writing " - "is larger than the total servers\n"); - exit(1); - } - - if (ms_setting.udp && (ms_setting.rep_write_srv > 0)) { - fprintf(stderr, "UDP doesn't support replication.\n"); - exit(1); - } - - if (ms_setting.facebook_test && (ms_setting.rep_write_srv > 0)) { - fprintf(stderr, "facebook test couldn't work with replication.\n"); - exit(1); - } - - ms_build_distr(); - - /* initialize global character block */ - ms_init_random_block(); - ms_print_setting(); -} /* ms_setting_slapmode_init_post */ - -/** - * post part of initialization of setting structure - */ -void ms_setting_init_post() { - ms_get_serverlist(ms_setting.srv_str); - ms_setting_slapmode_init_post(); -} - -/** - * clean up the global setting structure - */ -void ms_setting_cleanup() { - if (ms_setting.distr) { - free(ms_setting.distr); - } - - if (ms_setting.char_block) { - free(ms_setting.char_block); - } - - if (ms_setting.srv_str) { - free(ms_setting.srv_str); - } - - if (ms_setting.cfg_file) { - free(ms_setting.cfg_file); - } - - if (ms_setting.servers) { - free(ms_setting.servers); - } - - if (ms_setting.key_distr) { - free(ms_setting.key_distr); - } - - if (ms_setting.value_distr) { - free(ms_setting.value_distr); - } -} /* ms_setting_cleanup */ diff --git a/src/bin/contrib/memaslap/ms_setting.h b/src/bin/contrib/memaslap/ms_setting.h deleted file mode 100644 index 51cab2f7..00000000 --- a/src/bin/contrib/memaslap/ms_setting.h +++ /dev/null @@ -1,165 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#ifndef MS_SETTING_H -#define MS_SETTING_H - -#include "ms_memslap.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define MCD_SRVS_NUM_INIT 8 -#define MCD_HOST_LENGTH 64 -#define KEY_RANGE_COUNT_INIT 8 -#define VALUE_RANGE_COUNT_INIT 8 -#define PROP_ERROR 0.001 - -#define MIN_KEY_SIZE 16 -#define MAX_KEY_SIZE 250 -#define MAX_VALUE_SIZE (1024 * 1024) - -/* the content of the configuration file for memslap running without configuration file */ -#define DEFAULT_CONGIF_STR \ - "key\n" \ - "64 64 1\n" \ - "value\n" \ - "1024 1024 1\n" \ - "cmd\n" \ - "0 0.1\n" \ - "1 0.9" - -/* Used to parse the value length return by server and path string */ -typedef struct token_s { - char *value; - size_t length; -} token_t; - -#define MAX_TOKENS 10 - -/* server information */ -typedef struct mcd_server { - char srv_host_name[MCD_HOST_LENGTH]; /* host name of server */ - int srv_port; /* server port */ - - /* for calculating how long the server disconnects */ - ATOMIC uint32_t disconn_cnt; /* number of disconnections count */ - ATOMIC uint32_t reconn_cnt; /* number of reconnections count */ - struct timeval disconn_time; /* start time of disconnection */ - struct timeval reconn_time; /* end time of reconnection */ -} ms_mcd_server_t; - -/* information of an item distribution including key and value */ -typedef struct distr { - size_t key_size; /* size of key */ - int key_offset; /* offset of one key in character block */ - size_t value_size; /* size of value */ -} ms_distr_t; - -/* information of key distribution */ -typedef struct key_distr { - size_t start_len; /* start of the key length range */ - size_t end_len; /* end of the key length range */ - double key_prop; /* key proportion */ -} ms_key_distr_t; - -/* information of value distribution */ -typedef struct value_distr { - size_t start_len; /* start of the value length range */ - size_t end_len; /* end of the value length range */ - double value_prop; /* value proportion */ -} ms_value_distr_t; - -/* memcached command types */ -typedef enum cmd_type { CMD_SET, CMD_GET, CMD_NULL } ms_cmd_type_t; - -/* types in the configuration file */ -typedef enum conf_type { CONF_KEY, CONF_VALUE, CONF_CMD, CONF_NULL } ms_conf_type_t; - -/* information of command distribution */ -typedef struct cmd_distr { - ms_cmd_type_t cmd_type; /* command type */ - double cmd_prop; /* proportion of the command */ -} ms_cmd_distr_t; - -/* global setting structure */ -typedef struct setting { - uint32_t ncpu; /* cpu count of this system */ - uint32_t nthreads; /* total thread count, must equal or less than cpu cores */ - uint32_t nconns; /* total conn count, must multiply by total thread count */ - int64_t exec_num; /* total execute number */ - int run_time; /* total run time */ - - uint32_t char_blk_size; /* global character block size */ - char *char_block; /* global character block with random character */ - ms_distr_t *distr; /* distribution from configure file */ - - char *srv_str; /* string includes servers information */ - char *cfg_file; /* configure file name */ - - ms_mcd_server_t *servers; /* servers array */ - uint32_t total_srv_cnt; /* total servers count of the servers array */ - uint32_t srv_cnt; /* servers count */ - - ms_key_distr_t *key_distr; /* array of key distribution */ - int total_key_rng_cnt; /* total key range count of the array */ - int key_rng_cnt; /* actual key range count */ - - ms_value_distr_t *value_distr; /* array of value distribution */ - int total_val_rng_cnt; /* total value range count of the array */ - int val_rng_cnt; /* actual value range count */ - - ms_cmd_distr_t cmd_distr[CMD_NULL]; /* total we have CMD_NULL commands */ - int cmd_used_count; /* supported command count */ - - size_t fixed_value_size; /* fixed value size */ - size_t avg_val_size; /* average value size */ - size_t avg_key_size; /* average value size */ - - double verify_percent; /* percent of data verification */ - double exp_ver_per; /* percent of data verification with expire time */ - double overwrite_percent; /* percent of overwrite */ - int mult_key_num; /* number of keys used by multi-get once */ - size_t win_size; /* item window size per connection */ - bool udp; /* whether or not use UDP */ - int stat_freq; /* statistic frequency second */ - bool reconnect; /* whether it reconnect when connection close */ - bool verbose; /* whether it outputs detailed information when verification */ - bool facebook_test; /* facebook test, TCP set and multi-get with UDP */ - uint32_t sock_per_conn; /* number of socks per connection structure */ - bool binary_prot_; /* whether it use binary protocol */ - int expected_tps; /* expected throughput */ - uint32_t rep_write_srv; /* which servers are used to do replication writing */ -} ms_setting_st; - -extern ms_setting_st ms_setting; - -/* previous part of initialization of setting structure */ -void ms_setting_init_pre(void); - -/* post part of initialization of setting structure */ -void ms_setting_init_post(void); - -/* clean up the global setting structure */ -void ms_setting_cleanup(void); - -#define UNUSED_ARGUMENT(x) (void) x - -#ifdef __cplusplus -} -#endif - -#endif /* end of MS_SETTING_H */ diff --git a/src/bin/contrib/memaslap/ms_sigsegv.c b/src/bin/contrib/memaslap/ms_sigsegv.c deleted file mode 100644 index 4c421489..00000000 --- a/src/bin/contrib/memaslap/ms_sigsegv.c +++ /dev/null @@ -1,116 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#include "mem_config.h" - -#include -#include -#include -#include -#include - -#include "ms_memslap.h" -#include "ms_setting.h" - -/* prototypes */ -int ms_setup_sigsegv(void); -int ms_setup_sigpipe(void); -int ms_setup_sigint(void); - -/* signal seg reaches, this function will run */ -static void ms_signal_segv(int signum, siginfo_t *info, void *ptr) { - UNUSED_ARGUMENT(signum); - UNUSED_ARGUMENT(info); - UNUSED_ARGUMENT(ptr); - - pthread_mutex_lock(&ms_global.quit_mutex); - fprintf(stderr, "Segmentation fault occurred.\nStack trace:\n"); -#if 0 - pandora_print_callstack(stderr); -#endif - fprintf(stderr, "End of stack trace\n"); - pthread_mutex_unlock(&ms_global.quit_mutex); - abort(); -} - -/* signal int reaches, this function will run */ -static void ms_signal_int(int signum, siginfo_t *info, void *ptr) { - UNUSED_ARGUMENT(signum); - UNUSED_ARGUMENT(info); - UNUSED_ARGUMENT(ptr); - - pthread_mutex_lock(&ms_global.quit_mutex); - fprintf(stderr, "SIGINT handled.\n"); - pthread_mutex_unlock(&ms_global.quit_mutex); - exit(1); -} /* ms_signal_int */ - -/** - * redirect signal seg - * - * @return if success, return EXIT_SUCCESS, else return -1 - */ -int ms_setup_sigsegv(void) { - struct sigaction action; - - memset(&action, 0, sizeof(action)); - action.sa_sigaction = ms_signal_segv; - action.sa_flags = SA_SIGINFO; - if (sigaction(SIGSEGV, &action, NULL) < 0) { - perror("sigaction"); - return EXIT_SUCCESS; - } - - return -1; -} /* ms_setup_sigsegv */ - -/** - * redirect signal pipe - * - * @return if success, return EXIT_SUCCESS, else return -1 - */ -int ms_setup_sigpipe(void) { - /* ignore the SIGPIPE signal */ - signal(SIGPIPE, SIG_IGN); - - return -1; -} /* ms_setup_sigpipe */ - -/** - * redirect signal int - * - * @return if success, return EXIT_SUCCESS, else return -1 - */ -int ms_setup_sigint(void) { - struct sigaction action_3; - - memset(&action_3, 0, sizeof(action_3)); - action_3.sa_sigaction = ms_signal_int; - action_3.sa_flags = SA_SIGINFO; - if (sigaction(SIGINT, &action_3, NULL) < 0) { - perror("sigaction"); - return EXIT_SUCCESS; - } - - return -1; -} /* ms_setup_sigint */ - -#ifndef SIGSEGV_NO_AUTO_INIT -static void __attribute((constructor)) ms_init(void) { - ms_setup_sigsegv(); - ms_setup_sigpipe(); - ms_setup_sigint(); -} -#endif diff --git a/src/bin/contrib/memaslap/ms_sigsegv.h b/src/bin/contrib/memaslap/ms_sigsegv.h deleted file mode 100644 index c990087c..00000000 --- a/src/bin/contrib/memaslap/ms_sigsegv.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#ifndef MS_SIGSEGV_H -#define MS_SIGSEGV_H - -#ifdef __cplusplus -extern "C" { -#endif - -/* redirect signal seg */ -int ms_setup_sigsegv(void); - -/* redirect signal pipe */ -int ms_setup_sigpipe(void); - -/* redirect signal int */ -int ms_setup_sigint(void); - -#ifdef __cplusplus -} -#endif - -#endif /* end of MS_SIGSEGV_H */ diff --git a/src/bin/contrib/memaslap/ms_stats.c b/src/bin/contrib/memaslap/ms_stats.c deleted file mode 100644 index dce5ed8b..00000000 --- a/src/bin/contrib/memaslap/ms_stats.c +++ /dev/null @@ -1,245 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#include "mem_config.h" - -#include -#include "ms_stats.h" - -#define array_size(x) (sizeof(x) / sizeof((x)[0])) - -static int ms_local_log2(uint64_t value); -static uint64_t ms_get_events(ms_stat_t *stat); - -/** - * get the index of local log2 array - * - * @param value - * - * @return return the index of local log2 array - */ -static int ms_local_log2(uint64_t value) { - int result = 0; - - while (result <= 63 && ((uint64_t) 1 << result) < value) { - result++; - } - - return result; -} /* ms_local_log2 */ - -/** - * initialize statistic structure - * - * @param stat, pointer of the statistic structure - * @param name, name of the statistic - */ -void ms_init_stats(ms_stat_t *stat, const char *name) { - memset(stat, 0, sizeof(*stat)); - - stat->name = (char *) name; - stat->min_time = (uint64_t) -1; - stat->max_time = 0; - stat->period_min_time = (uint64_t) -1; - stat->period_max_time = 0; - stat->log_product = 0; - stat->total_time = 0; - stat->pre_total_time = 0; - stat->squares = 0; - stat->pre_squares = 0; - stat->pre_events = 0; - stat->pre_log_product = 0; - stat->get_miss = 0; - stat->pre_get_miss = 0; -} /* ms_init_stats */ - -/** - * record one event - * - * @param stat, pointer of the statistic structure - * @param total_time, response time of the command - * @param get_miss, whether it gets miss - */ -void ms_record_event(ms_stat_t *stat, uint64_t total_time, int get_miss) { - stat->total_time += total_time; - - if (total_time < stat->min_time) { - stat->min_time = total_time; - } - - if (total_time > stat->max_time) { - stat->max_time = total_time; - } - - if (total_time < stat->period_min_time) { - stat->period_min_time = total_time; - } - - if (total_time > stat->period_max_time) { - stat->period_max_time = total_time; - } - - if (get_miss) { - stat->get_miss++; - } - - stat->dist[ms_local_log2(total_time)]++; - stat->squares += (double) (total_time * total_time); - - if (total_time) { - stat->log_product += log((double) total_time); - } -} /* ms_record_event */ - -/** - * get the events count - * - * @param stat, pointer of the statistic structure - * - * @return total events recorded - */ -static uint64_t ms_get_events(ms_stat_t *stat) { - uint64_t events = 0; - - for (uint32_t i = 0; i < array_size(stat->dist); i++) { - events += stat->dist[i]; - } - - return events; -} /* ms_get_events */ - -/** - * dump the statistics - * - * @param stat, pointer of the statistic structure - */ -void ms_dump_stats(ms_stat_t *stat) { - uint64_t events = 0; - int max_non_zero = 0; - int min_non_zero = 0; - double average = 0; - - for (uint32_t i = 0; i < array_size(stat->dist); i++) { - events += stat->dist[i]; - if (stat->dist[i]) { - max_non_zero = (int) i; - } - } - - if (events == 0) { - return; - } - average = (double) (stat->total_time / events); - - printf("%s Statistics (%lld events)\n", stat->name, (long long) events); - printf(" Min: %8lld\n", (long long) stat->min_time); - printf(" Max: %8lld\n", (long long) stat->max_time); - printf(" Avg: %8lld\n", (long long) (stat->total_time / events)); - printf(" Geo: %8.2lf\n", exp(stat->log_product / (double) events)); - - if (events > 1) { - printf(" Std: %8.2lf\n", - sqrt((stat->squares - (double) events * average * average) / ((double) events - 1))); - } - printf(" Log2 Dist:"); - - for (int i = 0; i <= max_non_zero - 4; i += 4) { - if ((stat->dist[i + 0]) || (stat->dist[i + 1]) || (stat->dist[i + 2]) - || (stat->dist[i + 3])) - { - min_non_zero = i; - break; - } - } - - for (int i = min_non_zero; i <= max_non_zero; i++) { - if ((i % 4) == 0) { - printf("\n %2d:", (int) i); - } - printf(" %6" PRIu64, stat->dist[i]); - } - - printf("\n\n"); -} /* ms_dump_stats */ - -/** - * dump the format statistics - * - * @param stat, pointer of the statistic structure - * @param run_time, the total run time - * @param freq, statistic frequency - * @param obj_size, average object size - */ -void ms_dump_format_stats(ms_stat_t *stat, int run_time, int freq, int obj_size) { - uint64_t events = 0; - double global_average = 0; - uint64_t global_tps = 0; - double global_rate = 0; - double global_std = 0; - double global_log = 0; - - double period_average = 0; - uint64_t period_tps = 0; - double period_rate = 0; - double period_std = 0; - double period_log = 0; - - if ((events = ms_get_events(stat)) == 0) { - return; - } - - global_average = (double) (stat->total_time / events); - global_tps = events / (uint64_t) run_time; - global_rate = (double) events * obj_size / 1024 / 1024 / run_time; - global_std = sqrt((stat->squares - (double) events * global_average * global_average) - / (double) (events - 1)); - global_log = exp(stat->log_product / (double) events); - - uint64_t diff_time = stat->total_time - stat->pre_total_time; - uint64_t diff_events = events - stat->pre_events; - if (diff_events >= 1) { - period_average = (double) (diff_time / diff_events); - period_tps = diff_events / (uint64_t) freq; - period_rate = (double) diff_events * obj_size / 1024 / 1024 / freq; - double diff_squares = (double) stat->squares - (double) stat->pre_squares; - period_std = sqrt((diff_squares - (double) diff_events * period_average * period_average) - / (double) (diff_events - 1)); - double diff_log_product = stat->log_product - stat->pre_log_product; - period_log = exp(diff_log_product / (double) diff_events); - } - - printf("%s Statistics\n", stat->name); - printf("%-8s %-8s %-12s %-12s %-10s %-10s %-8s %-10s %-10s %-10s %-10s\n", "Type", "Time(s)", - "Ops", "TPS(ops/s)", "Net(M/s)", "Get_miss", "Min(us)", "Max(us)", "Avg(us)", "Std_dev", - "Geo_dist"); - - printf("%-8s %-8d %-12llu %-12lld %-10.1f %-10lld %-8lld %-10lld %-10lld %-10.2f %.2f\n", - "Period", freq, (long long) diff_events, (long long) period_tps, global_rate, - (long long) (stat->get_miss - stat->pre_get_miss), (long long) stat->period_min_time, - (long long) stat->period_max_time, (long long) period_average, period_std, period_log); - - printf("%-8s %-8d %-12llu %-12lld %-10.1f %-10lld %-8lld %-10lld %-10lld %-10.2f %.2f\n\n", - "Global", run_time, (long long) events, (long long) global_tps, period_rate, - (long long) stat->get_miss, (long long) stat->min_time, (long long) stat->max_time, - (long long) global_average, global_std, global_log); - - stat->pre_events = events; - stat->pre_squares = (uint64_t) stat->squares; - stat->pre_total_time = stat->total_time; - stat->pre_log_product = stat->log_product; - stat->period_min_time = (uint64_t) -1; - stat->period_max_time = 0; - stat->pre_get_miss = stat->get_miss; -} /* ms_dump_format_stats */ diff --git a/src/bin/contrib/memaslap/ms_stats.h b/src/bin/contrib/memaslap/ms_stats.h deleted file mode 100644 index 9d12a393..00000000 --- a/src/bin/contrib/memaslap/ms_stats.h +++ /dev/null @@ -1,66 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#ifndef MS_STAT_H -#define MS_STAT_H - -#include -#include -#include -#include -#include -#include - -#ifdef __cplusplus -extern "C" { -#endif - -/* statistic structure of response time */ -typedef struct { - char *name; - uint64_t total_time; - uint64_t min_time; - uint64_t max_time; - uint64_t get_miss; - uint64_t dist[65]; - double squares; - double log_product; - - uint64_t period_min_time; - uint64_t period_max_time; - uint64_t pre_get_miss; - uint64_t pre_events; - uint64_t pre_total_time; - uint64_t pre_squares; - double pre_log_product; -} ms_stat_t; - -/* initialize statistic */ -void ms_init_stats(ms_stat_t *stat, const char *name); - -/* record one event */ -void ms_record_event(ms_stat_t *stat, uint64_t time, int get_miss); - -/* dump the statistics */ -void ms_dump_stats(ms_stat_t *stat); - -/* dump the format statistics */ -void ms_dump_format_stats(ms_stat_t *stat, int run_time, int freq, int obj_size); - -#ifdef __cplusplus -} -#endif - -#endif /* MS_STAT_H */ diff --git a/src/bin/contrib/memaslap/ms_task.c b/src/bin/contrib/memaslap/ms_task.c deleted file mode 100644 index 63d7fed8..00000000 --- a/src/bin/contrib/memaslap/ms_task.c +++ /dev/null @@ -1,927 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#include "mem_config.h" - -#if defined(HAVE_SYS_TIME_H) -# include -#endif - -#if defined(HAVE_TIME_H) -# include -#endif - -#include "ms_thread.h" -#include "ms_setting.h" -#include "ms_atomic.h" - -/* command distribution adjustment cycle */ -#define CMD_DISTR_ADJUST_CYCLE 1000 -#define DISADJUST_FACTOR \ - 0.03 /** \ - * In one adjustment cycle, if undo set or get \ - * operations proportion is more than 3% , means \ - * there are too many new item or need more new \ - * item in the window. This factor shows it. \ - */ - -/* get item from task window */ -static ms_task_item_t *ms_get_cur_opt_item(ms_conn_t *c); -static ms_task_item_t *ms_get_next_get_item(ms_conn_t *c); -static ms_task_item_t *ms_get_next_set_item(ms_conn_t *c); -static ms_task_item_t *ms_get_random_overwrite_item(ms_conn_t *c); - -/* select next operation to do */ -static void ms_select_opt(ms_conn_t *c, ms_task_t *task); - -/* set and get speed estimate for controlling and adjustment */ -static bool ms_is_set_too_fast(ms_task_t *task); -static bool ms_is_get_too_fast(ms_task_t *task); -static void ms_kick_out_item(ms_task_item_t *item); - -/* miss rate adjustment */ -static bool ms_need_overwrite_item(ms_task_t *task); -static bool ms_adjust_opt(ms_conn_t *c, ms_task_t *task); - -/* deal with data verification initialization */ -static void ms_task_data_verify_init(ms_task_t *task); -static void ms_task_expire_verify_init(ms_task_t *task); - -/* select a new task to do */ -static ms_task_t *ms_get_task(ms_conn_t *c, bool warmup); - -/* run the selected task */ -static void ms_update_set_result(ms_conn_t *c, ms_task_item_t *item); -static void ms_update_stat_result(ms_conn_t *c); -static void ms_update_multi_get_result(ms_conn_t *c); -static void ms_update_single_get_result(ms_conn_t *c, ms_task_item_t *item); -static void ms_update_task_result(ms_conn_t *c); -static void ms_single_getset_task_sch(ms_conn_t *c); -static void ms_multi_getset_task_sch(ms_conn_t *c); -static void ms_send_signal(ms_sync_lock_t *sync_lock); -static void ms_warmup_server(ms_conn_t *c); -static int ms_run_getset_task(ms_conn_t *c); - -/** - * used to get the current operation item(object) - * - * @param c, pointer of the concurrency - * - * @return ms_task_item_t*, current operating item - */ -static ms_task_item_t *ms_get_cur_opt_item(ms_conn_t *c) { - return c->curr_task.item; -} - -/** - * used to get the next item to do get operation - * - * @param c, pointer of the concurrency - * - * @return ms_task_item_t*, the pointer of the next item to do - * get operation - */ -static ms_task_item_t *ms_get_next_get_item(ms_conn_t *c) { - ms_task_item_t *item = NULL; - - if (c->set_cursor <= 0) { - /* the first item in the window */ - item = &c->item_win[0]; - } else if (c->set_cursor > 0 && c->set_cursor < (uint32_t) c->win_size) { - /* random get one item set before */ - item = &c->item_win[random() % (int64_t) c->set_cursor]; - } else { - /* random get one item from the window */ - item = &c->item_win[random() % c->win_size]; - } - - return item; -} /* ms_get_next_get_item */ - -/** - * used to get the next item to do set operation - * - * @param c, pointer of the concurrency - * - * @return ms_task_item_t*, the pointer of the next item to do - * set operation - */ -static ms_task_item_t *ms_get_next_set_item(ms_conn_t *c) { - /** - * when a set command successes, the cursor will plus 1. If set - * fails, the cursor doesn't change. it isn't necessary to - * increase the cursor here. - */ - return &c->item_win[(int64_t) c->set_cursor % c->win_size]; -} - -/** - * If we need do overwrite, we could select a item set before. - * This function is used to get a item set before to do - * overwrite. - * - * @param c, pointer of the concurrency - * - * @return ms_task_item_t*, the pointer of the previous item of - * set operation - */ -static ms_task_item_t *ms_get_random_overwrite_item(ms_conn_t *c) { - return ms_get_next_get_item(c); -} /* ms_get_random_overwrite_item */ - -/** - * According to the proportion of operations(get or set), select - * an operation to do. - * - * @param c, pointer of the concurrency - * @param task, pointer of current task in the concurrency - */ -static void ms_select_opt(ms_conn_t *c, ms_task_t *task) { - double get_prop = ms_setting.cmd_distr[CMD_GET].cmd_prop; - double set_prop = ms_setting.cmd_distr[CMD_SET].cmd_prop; - - /* update cycle operation number if necessary */ - if ((task->cycle_undo_get == 0) || (task->cycle_undo_set == 0)) { - task->cycle_undo_get += (int) (CMD_DISTR_ADJUST_CYCLE * get_prop); - task->cycle_undo_set += (int) (CMD_DISTR_ADJUST_CYCLE * set_prop); - } - - /** - * According to operation distribution to choose doing which - * operation. If it can't set new object to sever, just change - * to do get operation. - */ - if ((set_prop > PROP_ERROR) - && ((double) task->get_opt * set_prop >= (double) task->set_opt * get_prop)) - { - task->cmd = CMD_SET; - task->item = ms_get_next_set_item(c); - } else { - task->cmd = CMD_GET; - task->item = ms_get_next_get_item(c); - } -} /* ms_select_opt */ - -/** - * used to judge whether the number of get operations done is - * more than expected number of get operations to do right now. - * - * @param task, pointer of current task in the concurrency - * - * @return bool, if get too fast, return true, else return false - */ -static bool ms_is_get_too_fast(ms_task_t *task) { - double get_prop = ms_setting.cmd_distr[CMD_GET].cmd_prop; - double set_prop = ms_setting.cmd_distr[CMD_SET].cmd_prop; - - /* no get operation */ - if (get_prop < PROP_ERROR) { - return false; - } - - int max_undo_set = (int) (set_prop / get_prop * (1.0 + DISADJUST_FACTOR)) * task->cycle_undo_get; - - if (((double) task->get_opt * set_prop > (double) task->set_opt * get_prop) - && (task->cycle_undo_set > max_undo_set)) - { - return true; - } - - return false; -} /* ms_is_get_too_fast */ - -/** - * used to judge whether the number of set operations done is - * more than expected number of set operations to do right now. - * - * @param task, pointer of current task in the concurrency - * - * @return bool, if set too fast, return true, else return false - */ -static bool ms_is_set_too_fast(ms_task_t *task) { - double get_prop = ms_setting.cmd_distr[CMD_GET].cmd_prop; - double set_prop = ms_setting.cmd_distr[CMD_SET].cmd_prop; - - /* no set operation */ - if (set_prop < PROP_ERROR) { - return false; - } - - /* If it does set operation too fast, skip some */ - int max_undo_get = - (int) ((get_prop / set_prop * (1.0 + DISADJUST_FACTOR)) * (double) task->cycle_undo_set); - - if (((double) task->get_opt * set_prop < (double) task->set_opt * get_prop) - && (task->cycle_undo_get > max_undo_get)) - { - return true; - } - - return false; -} /* ms_is_set_too_fast */ - -/** - * kick out the old item in the window, and add a new item to - * overwrite the old item. When we don't want to do overwrite - * object, and the current item to do set operation is an old - * item, we could kick out the old item and add a new item. Then - * we can ensure we set new object every time. - * - * @param item, pointer of task item which includes the object - * information - */ -static void ms_kick_out_item(ms_task_item_t *item) { - /* allocate a new item */ - item->key_prefix = ms_get_key_prefix(); - - item->key_suffix_offset++; - item->value_offset = INVALID_OFFSET; /* new item use invalid value offset */ - item->client_time = 0; -} /* ms_kick_out_item */ - -/** - * used to judge whether we need overwrite object based on the - * options user specified - * - * @param task, pointer of current task in the concurrency - * - * @return bool, if need overwrite, return true, else return - * false - */ -static bool ms_need_overwrite_item(ms_task_t *task) { - ms_task_item_t *item = task->item; - - assert(item); - assert(task->cmd == CMD_SET); - - /** - * according to data overwrite percent to determine if do data - * overwrite. - */ - if (task->overwrite_set < (double) task->set_opt * ms_setting.overwrite_percent) { - return true; - } - - return false; -} /* ms_need_overwirte_item */ - -/** - * used to adjust operation. the function must be called after - * select operation. the function change get operation to set - * operation, or set operation to get operation based on the - * current case. - * - * @param c, pointer of the concurrency - * @param task, pointer of current task in the concurrency - * - * @return bool, if success, return true, else return false - */ -static bool ms_adjust_opt(ms_conn_t *c, ms_task_t *task) { - ms_task_item_t *item = task->item; - - assert(item); - - if (task->cmd == CMD_SET) { - /* If did set operation too fast, skip some */ - if (ms_is_set_too_fast(task)) { - /* get the item instead */ - if (item->value_offset != INVALID_OFFSET) { - task->cmd = CMD_GET; - return true; - } - } - - /* If the current item is not a new item, kick it out */ - if (item->value_offset != INVALID_OFFSET) { - if (ms_need_overwrite_item(task)) { - /* overwrite */ - task->overwrite_set++; - } else { - /* kick out the current item to do set operation */ - ms_kick_out_item(item); - } - } else /* it's a new item */ { - /* need overwrite */ - if (ms_need_overwrite_item(task)) { - /** - * overwrite not use the item with current set cursor, revert - * set cursor. - */ - c->set_cursor--; - - item = ms_get_random_overwrite_item(c); - if (item->value_offset != INVALID_OFFSET) { - task->item = item; - task->overwrite_set++; - } else /* item is a new item */ { - /* select the item to run, and cancel overwrite */ - task->item = item; - } - } - } - task->cmd = CMD_SET; - return true; - } else { - if (item->value_offset == INVALID_OFFSET) { - task->cmd = CMD_SET; - return true; - } - - /** - * If It does get operation too fast, it will change the - * operation to set. - */ - if (ms_is_get_too_fast(task)) { - /* don't kick out the first item in the window */ - if (!ms_is_set_too_fast(task)) { - ms_kick_out_item(item); - task->cmd = CMD_SET; - return true; - } else { - return false; - } - } - - assert(item->value_offset != INVALID_OFFSET); - - task->cmd = CMD_GET; - return true; - } -} /* ms_adjust_opt */ - -/** - * used to initialize the task which need verify data. - * - * @param task, pointer of current task in the concurrency - */ -static void ms_task_data_verify_init(ms_task_t *task) { - ms_task_item_t *item = task->item; - - assert(item); - assert(task->cmd == CMD_GET); - - /** - * according to data verification percent to determine if do - * data verification. - */ - if (task->verified_get < (double) task->get_opt * ms_setting.verify_percent) { - /** - * currently it doesn't do verify, just increase the counter, - * and do verification next proper get command - */ - if ((task->item->value_offset != INVALID_OFFSET) && (item->exp_time == 0)) { - task->verify = true; - task->finish_verify = false; - task->verified_get++; - } - } -} /* ms_task_data_verify_init */ - -/** - * used to initialize the task which need verify expire time. - * - * @param task, pointer of current task in the concurrency - */ -static void ms_task_expire_verify_init(ms_task_t *task) { - ms_task_item_t *item = task->item; - - assert(item); - assert(task->cmd == CMD_GET); - assert(item->exp_time > 0); - - task->verify = true; - task->finish_verify = false; -} /* ms_task_expire_verify_init */ - -/** - * used to get one task, the function initializes the task - * structure. - * - * @param c, pointer of the concurrency - * @param warmup, whether it need warmup - * - * @return ms_task_t*, pointer of current task in the - * concurrency - */ -static ms_task_t *ms_get_task(ms_conn_t *c, bool warmup) { - ms_task_t *task = &c->curr_task; - - while (1) { - task->verify = false; - task->finish_verify = true; - task->get_miss = true; - - if (warmup) { - task->cmd = CMD_SET; - task->item = ms_get_next_set_item(c); - - return task; - } - - /* according to operation distribution to choose doing which operation */ - ms_select_opt(c, task); - - if (!ms_adjust_opt(c, task)) { - continue; - } - - if ((ms_setting.verify_percent > 0) && (task->cmd == CMD_GET)) { - ms_task_data_verify_init(task); - } - - if ((ms_setting.exp_ver_per > 0) && (task->cmd == CMD_GET) && (task->item->exp_time > 0)) { - ms_task_expire_verify_init(task); - } - - break; - } - - /** - * Only update get and delete counter, set counter will be - * updated after set operation successes. - */ - if (task->cmd == CMD_GET) { - task->get_opt++; - task->cycle_undo_get--; - } - - return task; -} /* ms_get_task */ - -/** - * send a signal to the main monitor thread - * - * @param sync_lock, pointer of the lock - */ -static void ms_send_signal(ms_sync_lock_t *sync_lock) { - pthread_mutex_lock(&sync_lock->lock); - sync_lock->count++; - pthread_cond_signal(&sync_lock->cond); - pthread_mutex_unlock(&sync_lock->lock); -} /* ms_send_signal */ - -/** - * If user only want to do get operation, but there is no object - * in server , so we use this function to warmup the server, and - * set some objects to server. It runs at the beginning of task. - * - * @param c, pointer of the concurrency - */ -static void ms_warmup_server(ms_conn_t *c) { - ms_task_t *task; - ms_task_item_t *item; - - /** - * Extra one loop to get the last command returned state. - * Normally it gets the previous command returned state. - */ - if ((c->remain_warmup_num >= 0) && (c->remain_warmup_num != c->warmup_num)) { - item = ms_get_cur_opt_item(c); - /* only update the set command result state for data verification */ - if ((c->precmd.cmd == CMD_SET) && (c->precmd.retstat == MCD_STORED)) { - item->value_offset = item->key_suffix_offset; - /* set success, update counter */ - c->set_cursor++; - } else if (c->precmd.cmd == CMD_SET && c->precmd.retstat != MCD_STORED) { - printf("key: %" PRIx64 " didn't set success\n", item->key_prefix); - } - } - - /* the last time don't run a task */ - if (c->remain_warmup_num-- > 0) { - /* operate next task item */ - task = ms_get_task(c, true); - item = task->item; - ms_mcd_set(c, item); - } - - /** - * finish warming up server, wait all connects initialize - * complete. Then all connects can start do task at the same - * time. - */ - if (c->remain_warmup_num == -1) { - ms_send_signal(&ms_global.warmup_lock); - c->remain_warmup_num--; /* never run the if branch */ - } -} /* ms_warmup_server */ - -/** - * dispatch single get and set task - * - * @param c, pointer of the concurrency - */ -static void ms_single_getset_task_sch(ms_conn_t *c) { - ms_task_t *task; - ms_task_item_t *item; - - /* the last time don't run a task */ - if (c->remain_exec_num-- > 0) { - task = ms_get_task(c, false); - item = task->item; - if (task->cmd == CMD_SET) { - ms_mcd_set(c, item); - } else if (task->cmd == CMD_GET) { - assert(task->cmd == CMD_GET); - ms_mcd_get(c, item); - } - } -} /* ms_single_getset_task_sch */ - -/** - * dispatch multi-get and set task - * - * @param c, pointer of the concurrency - */ -static void ms_multi_getset_task_sch(ms_conn_t *c) { - ms_task_t *task; - ms_mlget_task_item_t *mlget_item; - - while (1) { - if (c->remain_exec_num-- > 0) { - task = ms_get_task(c, false); - if (task->cmd == CMD_SET) /* just do it */ { - ms_mcd_set(c, task->item); - break; - } else { - assert(task->cmd == CMD_GET); - mlget_item = &c->mlget_task.mlget_item[c->mlget_task.mlget_num]; - mlget_item->item = task->item; - mlget_item->verify = task->verify; - mlget_item->finish_verify = task->finish_verify; - mlget_item->get_miss = task->get_miss; - c->mlget_task.mlget_num++; - - /* enough multi-get task items can be done */ - if ((c->mlget_task.mlget_num >= ms_setting.mult_key_num) - || ((c->remain_exec_num == 0) && (c->mlget_task.mlget_num > 0))) - { - ms_mcd_mlget(c); - break; - } - } - } else { - if ((c->remain_exec_num <= 0) && (c->mlget_task.mlget_num > 0)) { - ms_mcd_mlget(c); - } - break; - } - } -} /* ms_multi_getset_task_sch */ - -/** - * calculate the difference value of two time points - * - * @param start_time, the start time - * @param end_time, the end time - * - * @return uint64_t, the difference value between start_time and end_time in us - */ -int64_t ms_time_diff(struct timeval *start_time, struct timeval *end_time) { - int64_t endtime = end_time->tv_sec * 1000000 + end_time->tv_usec; - int64_t starttime = start_time->tv_sec * 1000000 + start_time->tv_usec; - - assert(endtime >= starttime); - - return endtime - starttime; -} /* ms_time_diff */ - -/** - * after get the response from server for multi-get, the - * function update the state of the task and do data verify if - * necessary. - * - * @param c, pointer of the concurrency - */ -static void ms_update_multi_get_result(ms_conn_t *c) { - ms_mlget_task_item_t *mlget_item; - ms_task_item_t *item; - char *orignval = NULL; - char *orignkey = NULL; - - if (c == NULL) { - return; - } - assert(c); - - for (int i = 0; i < c->mlget_task.mlget_num; i++) { - mlget_item = &c->mlget_task.mlget_item[i]; - item = mlget_item->item; - orignval = &ms_setting.char_block[item->value_offset]; - orignkey = &ms_setting.char_block[item->key_suffix_offset]; - - /* update get miss counter */ - if (mlget_item->get_miss) { - atomic_add_size(&ms_stats.get_misses, 1); - } - - /* get nothing from server for this task item */ - if (mlget_item->verify && !mlget_item->finish_verify) { - /* verify expire time if necessary */ - if (item->exp_time > 0) { - struct timeval curr_time; - gettimeofday(&curr_time, NULL); - - /* object doesn't expire but can't get it now */ - if (curr_time.tv_sec - item->client_time < item->exp_time - EXPIRE_TIME_ERROR) { - atomic_add_size(&ms_stats.unexp_unget, 1); - - if (ms_setting.verbose) { - char set_time[64]; - char cur_time[64]; - strftime(set_time, 64, "%Y-%m-%d %H:%M:%S", localtime(&item->client_time)); - strftime(cur_time, 64, "%Y-%m-%d %H:%M:%S", localtime(&curr_time.tv_sec)); - fprintf(stderr, - "\n\t<%d expire time verification failed, object " - "doesn't expire but can't get it now\n" - "\tkey len: %d\n" - "\tkey: %" PRIx64 " %.*s\n" - "\tset time: %s current time: %s " - "diff time: %d expire time: %d\n" - "\texpected data len: %d\n" - "\texpected data: %.*s\n" - "\treceived data: \n", - c->sfd, item->key_size, item->key_prefix, - item->key_size - (int) KEY_PREFIX_SIZE, orignkey, set_time, cur_time, - (int) (curr_time.tv_sec - item->client_time), item->exp_time, item->value_size, - item->value_size, orignval); - fflush(stderr); - } - } - } else { - atomic_add_size(&ms_stats.vef_miss, 1); - - if (ms_setting.verbose) { - fprintf(stderr, - "\n<%d data verification failed\n" - "\tkey len: %d\n" - "\tkey: %" PRIx64 " %.*s\n" - "\texpected data len: %d\n" - "\texpected data: %.*s\n" - "\treceived data: \n", - c->sfd, item->key_size, item->key_prefix, item->key_size - (int) KEY_PREFIX_SIZE, - orignkey, item->value_size, item->value_size, orignval); - fflush(stderr); - } - } - } - } - c->mlget_task.mlget_num = 0; - c->mlget_task.value_index = INVALID_OFFSET; -} /* ms_update_multi_get_result */ - -/** - * after get the response from server for single get, the - * function update the state of the task and do data verify if - * necessary. - * - * @param c, pointer of the concurrency - * @param item, pointer of task item which includes the object - * information - */ -static void ms_update_single_get_result(ms_conn_t *c, ms_task_item_t *item) { - char *orignval = NULL; - char *orignkey = NULL; - - if ((c == NULL) || (item == NULL)) { - return; - } - assert(c); - assert(item); - - orignval = &ms_setting.char_block[item->value_offset]; - orignkey = &ms_setting.char_block[item->key_suffix_offset]; - - /* update get miss counter */ - if ((c->precmd.cmd == CMD_GET) && c->curr_task.get_miss) { - atomic_add_size(&ms_stats.get_misses, 1); - } - - /* get nothing from server for this task item */ - if ((c->precmd.cmd == CMD_GET) && c->curr_task.verify && !c->curr_task.finish_verify) { - /* verify expire time if necessary */ - if (item->exp_time > 0) { - struct timeval curr_time; - gettimeofday(&curr_time, NULL); - - /* object doesn't expire but can't get it now */ - if (curr_time.tv_sec - item->client_time < item->exp_time - EXPIRE_TIME_ERROR) { - atomic_add_size(&ms_stats.unexp_unget, 1); - - if (ms_setting.verbose) { - char set_time[64]; - char cur_time[64]; - strftime(set_time, 64, "%Y-%m-%d %H:%M:%S", localtime(&item->client_time)); - strftime(cur_time, 64, "%Y-%m-%d %H:%M:%S", localtime(&curr_time.tv_sec)); - fprintf(stderr, - "\n\t<%d expire time verification failed, object " - "doesn't expire but can't get it now\n" - "\tkey len: %d\n" - "\tkey: %" PRIx64 " %.*s\n" - "\tset time: %s current time: %s " - "diff time: %d expire time: %d\n" - "\texpected data len: %d\n" - "\texpected data: %.*s\n" - "\treceived data: \n", - c->sfd, item->key_size, item->key_prefix, item->key_size - (int) KEY_PREFIX_SIZE, - orignkey, set_time, cur_time, (int) (curr_time.tv_sec - item->client_time), - item->exp_time, item->value_size, item->value_size, orignval); - fflush(stderr); - } - } - } else { - atomic_add_size(&ms_stats.vef_miss, 1); - - if (ms_setting.verbose) { - fprintf(stderr, - "\n<%d data verification failed\n" - "\tkey len: %d\n" - "\tkey: %" PRIx64 " %.*s\n" - "\texpected data len: %d\n" - "\texpected data: %.*s\n" - "\treceived data: \n", - c->sfd, item->key_size, item->key_prefix, item->key_size - (int) KEY_PREFIX_SIZE, - orignkey, item->value_size, item->value_size, orignval); - fflush(stderr); - } - } - } -} /* ms_update_single_get_result */ - -/** - * after get the response from server for set the function - * update the state of the task and do data verify if necessary. - * - * @param c, pointer of the concurrency - * @param item, pointer of task item which includes the object - * information - */ -static void ms_update_set_result(ms_conn_t *c, ms_task_item_t *item) { - if ((c == NULL) || (item == NULL)) { - return; - } - assert(c); - assert(item); - - if (c->precmd.cmd == CMD_SET) { - switch (c->precmd.retstat) { - case MCD_STORED: - if (item->value_offset == INVALID_OFFSET) { - /* first set with the same offset of key suffix */ - item->value_offset = item->key_suffix_offset; - } else { - /* not first set, just increase the value offset */ - item->value_offset += 1; - } - - /* set successes, update counter */ - c->set_cursor++; - c->curr_task.set_opt++; - c->curr_task.cycle_undo_set--; - break; - - case MCD_SERVER_ERROR: - default: - break; - } /* switch */ - } -} /* ms_update_set_result */ - -/** - * update the response time result - * - * @param c, pointer of the concurrency - */ -static void ms_update_stat_result(ms_conn_t *c) { - bool get_miss = false; - - if (c == NULL) { - return; - } - assert(c); - - gettimeofday(&c->end_time, NULL); - uint64_t time_diff = (uint64_t) ms_time_diff(&c->start_time, &c->end_time); - - pthread_mutex_lock(&ms_statistic.stat_mutex); - - switch (c->precmd.cmd) { - case CMD_SET: - ms_record_event(&ms_statistic.set_stat, time_diff, false); - break; - - case CMD_GET: - if (c->curr_task.get_miss) { - get_miss = true; - } - ms_record_event(&ms_statistic.get_stat, time_diff, get_miss); - break; - - default: - break; - } /* switch */ - - ms_record_event(&ms_statistic.total_stat, time_diff, get_miss); - pthread_mutex_unlock(&ms_statistic.stat_mutex); -} /* ms_update_stat_result */ - -/** - * after get response from server for the current operation, and - * before doing the next operation, update the state of the - * current operation. - * - * @param c, pointer of the concurrency - */ -static void ms_update_task_result(ms_conn_t *c) { - ms_task_item_t *item; - - if (c == NULL) { - return; - } - assert(c); - - item = ms_get_cur_opt_item(c); - if (item == NULL) { - return; - } - assert(item); - - ms_update_set_result(c, item); - - if ((ms_setting.stat_freq > 0) && ((c->precmd.cmd == CMD_SET) || (c->precmd.cmd == CMD_GET))) { - ms_update_stat_result(c); - } - - /* update multi-get task item */ - if (((ms_setting.mult_key_num > 1) && (c->mlget_task.mlget_num >= ms_setting.mult_key_num)) - || ((c->remain_exec_num == 0) && (c->mlget_task.mlget_num > 0))) - { - ms_update_multi_get_result(c); - } else { - ms_update_single_get_result(c, item); - } -} /* ms_update_task_result */ - -/** - * run get and set operation - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_run_getset_task(ms_conn_t *c) { - /** - * extra one loop to get the last command return state. get the - * last command return state. - */ - if ((c->remain_exec_num >= 0) && (c->remain_exec_num != c->exec_num)) { - ms_update_task_result(c); - } - - /* multi-get */ - if (ms_setting.mult_key_num > 1) { - /* operate next task item */ - ms_multi_getset_task_sch(c); - } else { - /* operate next task item */ - ms_single_getset_task_sch(c); - } - - /* no task to do, exit */ - if ((c->remain_exec_num == -1) || ms_global.time_out) { - return -1; - } - - return EXIT_SUCCESS; -} /* ms_run_getset_task */ - -/** - * the state machine call the function to execute task. - * - * @param c, pointer of the concurrency - * - * @return int, if success, return EXIT_SUCCESS, else return -1 - */ -int ms_exec_task(struct conn *c) { - if (!ms_global.finish_warmup) { - ms_warmup_server(c); - } else { - if (ms_run_getset_task(c)) { - return -1; - } - } - - return EXIT_SUCCESS; -} /* ms_exec_task */ diff --git a/src/bin/contrib/memaslap/ms_task.h b/src/bin/contrib/memaslap/ms_task.h deleted file mode 100644 index add33f4b..00000000 --- a/src/bin/contrib/memaslap/ms_task.h +++ /dev/null @@ -1,93 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#ifndef MS_TASK_H -#define MS_TASK_H - -#include -#include -#if !defined(__cplusplus) -# include -#endif -#include - -#ifdef __cplusplus -extern "C" { -#endif - -#define UNIT_ITEMS_COUNT 1024 /* each window unit has 1024 items */ -#define KEY_PREFIX_SIZE (sizeof(uint64_t)) /* key prefix length: 8 bytes */ -#define INVALID_OFFSET (-1) /* invalid offset in the character table */ -#define FIXED_EXPIRE_TIME 60 /* default expire time is 60s */ -#define EXPIRE_TIME_ERROR 5 /* default expire time error is 5s */ - -/* information of a task item(object) */ -typedef struct task_item { - uint64_t key_prefix; /* prefix of the key, 8 bytes, binary */ - int key_size; /* key size */ - int key_suffix_offset; /* suffix offset in the global character table */ - - int value_size; /* data size */ - int value_offset; /* data offset in the global character table */ - - time_t client_time; /* the current client time */ - int exp_time; /* expire time */ -} ms_task_item_t; - -/* task item for multi-get */ -typedef struct mlget_task_item { - ms_task_item_t *item; /* task item */ - bool verify; /* whether verify data or not */ - bool finish_verify; /* whether finish data verify or not */ - bool get_miss; /* whether get miss or not */ -} ms_mlget_task_item_t; - -/* information of multi-get task */ -typedef struct mlget_task { - ms_mlget_task_item_t *mlget_item; /* multi-get task array */ - int mlget_num; /* how many tasks in mlget_task array */ - int value_index; /* the nth value received by the connect, for multi-get */ -} ms_mlget_task_t; - -/* structure used to store the state of the running task */ -typedef struct task { - int cmd; /* command name */ - bool verify; /* whether verify data or not */ - bool finish_verify; /* whether finish data verify or not */ - bool get_miss; /* whether get miss or not */ - ms_task_item_t *item; /* task item */ - - /* counter for command distribution adjustment */ - uint64_t get_opt; /* number of total get operations */ - uint64_t set_opt; /* number of total set operations, no including warmup set count */ - int cycle_undo_get; /* number of undo get in an adjustment cycle */ - int cycle_undo_set; /* number of undo set in an adjustment cycle */ - uint64_t verified_get; /* number of total verified get operations */ - uint64_t overwrite_set; /* number of total overwrite set operations */ -} ms_task_t; - -struct conn; - -/* the state machine call the function to execute task.*/ -int ms_exec_task(struct conn *c); - -/* calculate the difference value of two time points */ -int64_t ms_time_diff(struct timeval *start_time, struct timeval *end_time); - -#ifdef __cplusplus -} -#endif - -#endif /* end of MS_TASK_H */ diff --git a/src/bin/contrib/memaslap/ms_thread.c b/src/bin/contrib/memaslap/ms_thread.c deleted file mode 100644 index 1d960cfa..00000000 --- a/src/bin/contrib/memaslap/ms_thread.c +++ /dev/null @@ -1,303 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#include "mem_config.h" - -#if defined(HAVE_SYS_TIME_H) -# include -#endif - -#if defined(HAVE_TIME_H) -# include -#endif - -#include "ms_thread.h" -#include "ms_setting.h" -#include "ms_atomic.h" - -/* global variable */ -pthread_key_t ms_thread_key; - -/* array of thread context structure, each thread has a thread context structure */ -static ms_thread_ctx_t *ms_thread_ctx; - -/* functions */ -static void ms_set_current_time(void); -static void ms_check_sock_timeout(void); -static void ms_clock_handler(const int fd, const short which, void *arg); -static uint32_t ms_set_thread_cpu_affinity(uint32_t cpu); -static int ms_setup_thread(ms_thread_ctx_t *thread_ctx); -static void *ms_worker_libevent(void *arg); -static void ms_create_worker(void *(*func)(void *), ms_thread_ctx_t *arg); - -/** - * time-sensitive callers can call it by hand with this, - * outside the normal ever-1-second timer - */ -static void ms_set_current_time() { - struct timeval timer; - ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); - - gettimeofday(&timer, NULL); - ms_thread->curr_time = (rel_time_t) timer.tv_sec; -} /* ms_set_current_time */ - -/** - * used to check whether UDP of command are waiting timeout - * by the ever-1-second timer - */ -static void ms_check_sock_timeout(void) { - ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); - ms_conn_t *c = NULL; - int time_diff = 0; - - for (uint32_t i = 0; i < ms_thread->thread_ctx->nconns; i++) { - c = &ms_thread->conn[i]; - - if (c->udp) { - time_diff = (int) (ms_thread->curr_time - (rel_time_t) c->start_time.tv_sec); - - /* wait time out */ - if (time_diff > SOCK_WAIT_TIMEOUT) { - /* calculate dropped packets count */ - if (c->recvpkt > 0) { - atomic_add_size(&ms_stats.pkt_drop, c->packets - c->recvpkt); - } - - atomic_add_size(&ms_stats.udp_timeout, 1); - ms_reset_conn(c, true); - } - } - } -} /* ms_check_sock_timeout */ - -/* if disconnect, the ever-1-second timer will call this function to reconnect */ -static void ms_reconn_thread_socks(void) { - ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); - for (uint32_t i = 0; i < ms_thread->thread_ctx->nconns; i++) { - ms_reconn_socks(&ms_thread->conn[i]); - } -} /* ms_reconn_thread_socks */ - -/** - * the handler of the ever-1-second timer - * - * @param fd, the descriptors of the socket - * @param which, event flags - * @param arg, argument - */ -static void ms_clock_handler(const int fd, const short which, void *arg) { - ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key); - struct timeval t = {.tv_sec = 1, .tv_usec = 0}; - - UNUSED_ARGUMENT(fd); - UNUSED_ARGUMENT(which); - UNUSED_ARGUMENT(arg); - - ms_set_current_time(); - - if (ms_thread->initialized) { - /* only delete the event if it's actually there. */ - evtimer_del(&ms_thread->clock_event); - ms_check_sock_timeout(); - } else { - ms_thread->initialized = true; - } - - ms_reconn_thread_socks(); - - evtimer_set(&ms_thread->clock_event, ms_clock_handler, 0); - event_base_set(ms_thread->base, &ms_thread->clock_event); - evtimer_add(&ms_thread->clock_event, &t); -} /* ms_clock_handler */ - -/** - * used to bind thread to CPU if the system supports - * - * @param cpu, cpu index - * - * @return if success, return EXIT_SUCCESS, else return -1 - */ -static uint32_t ms_set_thread_cpu_affinity(uint32_t cpu) { - uint32_t ret = 0; - -#ifdef HAVE_CPU_SET_T - cpu_set_t cpu_set; - CPU_ZERO(&cpu_set); - CPU_SET(cpu, &cpu_set); - - if (sched_setaffinity(0, sizeof(cpu_set_t), &cpu_set) == -1) { - fprintf(stderr, "WARNING: Could not set CPU Affinity, continuing...\n"); - ret = 1; - } -#else - UNUSED_ARGUMENT(cpu); -#endif - - return ret; -} /* ms_set_thread_cpu_affinity */ - -/** - * Set up a thread's information. - * - * @param thread_ctx, pointer of the thread context structure - * - * @return if success, return EXIT_SUCCESS, else return -1 - */ -static int ms_setup_thread(ms_thread_ctx_t *thread_ctx) { - ms_thread_t *ms_thread = (ms_thread_t *) calloc(sizeof(*ms_thread), 1); - pthread_setspecific(ms_thread_key, (void *) ms_thread); - - ms_thread->thread_ctx = thread_ctx; - ms_thread->nactive_conn = thread_ctx->nconns; - ms_thread->initialized = false; - static ATOMIC uint32_t cnt = 0; - - gettimeofday(&ms_thread->startup_time, NULL); - - ms_thread->base = event_base_new(); - if (ms_thread->base == NULL) { - if (atomic_add_32_nv(&cnt, 1) == 0) { - fprintf(stderr, "Can't allocate event base.\n"); - } - - return -1; - } - - ms_thread->conn = (ms_conn_t *) malloc((size_t) thread_ctx->nconns * sizeof(ms_conn_t)); - if (ms_thread->conn == NULL) { - if (atomic_add_32_nv(&cnt, 1) == 0) { - fprintf(stderr, "Can't allocate concurrency structure for thread descriptors."); - } - - return -1; - } - memset(ms_thread->conn, 0, (size_t) thread_ctx->nconns * sizeof(ms_conn_t)); - - for (uint32_t i = 0; i < thread_ctx->nconns; i++) { - ms_thread->conn[i].conn_idx = i; - if (ms_setup_conn(&ms_thread->conn[i])) { - /* only output this error once */ - if (atomic_add_32_nv(&cnt, 1) == 0) { - fprintf(stderr, "Initializing connection failed.\n"); - } - - return -1; - } - } - - return EXIT_SUCCESS; -} /* ms_setup_thread */ - -/** - * Worker thread: main event loop - * - * @param arg, the pointer of argument - * - * @return void* - */ -static void *ms_worker_libevent(void *arg) { - ms_thread_t *ms_thread = NULL; - ms_thread_ctx_t *thread_ctx = (ms_thread_ctx_t *) arg; - - /** - * If system has more than one cpu and supports set cpu - * affinity, try to bind each thread to a cpu core; - */ - if (ms_setting.ncpu > 1) { - ms_set_thread_cpu_affinity(thread_ctx->thd_idx % ms_setting.ncpu); - } - - if (ms_setup_thread(thread_ctx)) { - exit(1); - } - - /* each thread with a timer */ - ms_clock_handler(0, 0, 0); - - pthread_mutex_lock(&ms_global.init_lock.lock); - ms_global.init_lock.count++; - pthread_cond_signal(&ms_global.init_lock.cond); - pthread_mutex_unlock(&ms_global.init_lock.lock); - - ms_thread = pthread_getspecific(ms_thread_key); - event_base_loop(ms_thread->base, 0); - event_base_free(ms_thread->base); - free(ms_thread); - - return NULL; -} /* ms_worker_libevent */ - -/** - * Creates a worker thread. - * - * @param func, the callback function - * @param arg, the argument to pass to the callback function - */ -static void ms_create_worker(void *(*func)(void *), ms_thread_ctx_t *arg) { - pthread_attr_t attr; - int ret; - - pthread_attr_init(&attr); - - if ((ret = pthread_create(&arg->pth_id, &attr, func, arg))) { - fprintf(stderr, "Can't create thread: %s.\n", strerror(ret)); - exit(1); - } -} /* ms_create_worker */ - -/* initialize threads */ -void ms_thread_init() { - ms_thread_ctx = - (ms_thread_ctx_t *) malloc(sizeof(ms_thread_ctx_t) * (size_t) ms_setting.nthreads); - if (ms_thread_ctx == NULL) { - fprintf(stderr, "Can't allocate thread descriptors."); - exit(1); - } - - for (uint32_t i = 0; i < ms_setting.nthreads; i++) { - ms_thread_ctx[i].thd_idx = i; - ms_thread_ctx[i].nconns = ms_setting.nconns / ms_setting.nthreads; - - /** - * If only one server, all the connections in all threads - * connects the same server. For support multi-servers, simple - * distribute thread to server. - */ - ms_thread_ctx[i].srv_idx = i % ms_setting.srv_cnt; - ms_thread_ctx[i].tps_perconn = ms_setting.expected_tps / (int) ms_setting.nconns; - ms_thread_ctx[i].exec_num_perconn = ms_setting.exec_num / ms_setting.nconns; - } - - if (pthread_key_create(&ms_thread_key, NULL)) { - fprintf(stderr, "Can't create pthread keys. Major malfunction!\n"); - exit(1); - } - /* Create threads after we've done all the epoll setup. */ - for (uint32_t i = 0; i < ms_setting.nthreads; i++) { - ms_create_worker(ms_worker_libevent, &ms_thread_ctx[i]); - } -} /* ms_thread_init */ - -/* cleanup some resource of threads when all the threads exit */ -void ms_thread_cleanup() { - for (uint32_t i = 0; i < ms_setting.nthreads; i++) { - pthread_join(ms_thread_ctx[i].pth_id, NULL); - } - if (ms_thread_ctx) { - free(ms_thread_ctx); - } - pthread_key_delete(ms_thread_key); -} /* ms_thread_cleanup */ diff --git a/src/bin/contrib/memaslap/ms_thread.h b/src/bin/contrib/memaslap/ms_thread.h deleted file mode 100644 index 3c49c56f..00000000 --- a/src/bin/contrib/memaslap/ms_thread.h +++ /dev/null @@ -1,65 +0,0 @@ -/* - +--------------------------------------------------------------------+ - | libmemcached - C/C++ Client Library for memcached | - +--------------------------------------------------------------------+ - | Redistribution and use in source and binary forms, with or without | - | modification, are permitted under the terms of the BSD license. | - | You should have received a copy of the license in a bundled file | - | named LICENSE; in case you did not receive a copy you can review | - | the terms online at: https://opensource.org/licenses/BSD-3-Clause | - +--------------------------------------------------------------------+ - | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | - | Copyright (c) 2020 Michael Wallner | - +--------------------------------------------------------------------+ -*/ - -#ifndef MS_THREAD_H -#define MS_THREAD_H - -#include -#include -#include "ms_conn.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** Time relative to server start. Smaller than time_t on 64-bit systems. */ -typedef unsigned int rel_time_t; - -/* Used to store the context of each thread */ -typedef struct thread_ctx { - uint32_t thd_idx; /* the thread index */ - uint32_t nconns; /* how many connections included by the thread */ - uint32_t srv_idx; /* index of the thread */ - int tps_perconn; /* expected throughput per connection */ - int64_t exec_num_perconn; /* execute number per connection */ - pthread_t pth_id; -} ms_thread_ctx_t; - -/* Used to store the private variables of each thread */ -typedef struct thread { - ms_conn_t *conn; /* conn array to store all the conn in the thread */ - uint32_t nactive_conn; /* how many connects are active */ - - ms_thread_ctx_t *thread_ctx; /* thread context from the caller */ - struct event_base *base; /* libevent handler created by this thread */ - - rel_time_t curr_time; /* current time */ - struct event clock_event; /* clock event to time each one second */ - bool initialized; /* whether clock_event has been initialized */ - - struct timeval startup_time; /* start time of the thread */ -} ms_thread_t; - -/* initialize threads */ -void ms_thread_init(void); - -/* cleanup some resource of threads when all the threads exit */ -void ms_thread_cleanup(void); - -#ifdef __cplusplus -} -#endif - -#endif /* end of MS_THREAD_H */ diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt index 6f8230fb..19330d39 100644 --- a/test/CMakeLists.txt +++ b/test/CMakeLists.txt @@ -23,7 +23,6 @@ file(GLOB_RECURSE TESTING_SRC RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *.cpp) set(TESTING_ROOT ${CMAKE_CURRENT_BINARY_DIR}) set(SOURCES_ROOT ${CMAKE_SOURCE_DIR}) set_source_files_properties(main.cpp PROPERTIES SKIP_UNITY_BUILD_INCLUSION ON) -configure_file(conf.h.in conf.h @ONLY) add_executable(runtests ${TESTING_SRC}) set_target_properties(runtests PROPERTIES CXX_STANDARD 17) target_include_directories(runtests PRIVATE @@ -41,10 +40,13 @@ if(NOT (thread IN_LIST ENABLE_SANITIZERS)) endif() add_dependencies(runtests ${CLIENTS}) -if(HAVE_MEMASLAP) +if(TARGET memaslap) + set(HAVE_MEMASLAP 1) add_dependencies(runtests memaslap) endif() +configure_file(conf.h.in conf.h @ONLY) + catch_discover_tests(runtests TEST_SPEC "lib*") catch_discover_tests(runtests diff --git a/test/tests/bin/memaslap.cpp b/test/tests/bin/memaslap.cpp index bcf79de6..0656a510 100644 --- a/test/tests/bin/memaslap.cpp +++ b/test/tests/bin/memaslap.cpp @@ -7,7 +7,7 @@ using Catch::Matchers::Contains; TEST_CASE("bin/memaslap") { - Shell sh{string{TESTING_ROOT "/../src/bin/contrib"}}; + Shell sh{string{TESTING_ROOT "/../contrib/bin/memaslap"}}; SECTION("no servers provided") { string output;