-
-add_library(libclient_utilities STATIC utilities.cc generator.cc execute.cc)
-add_library(client_utilities ALIAS libclient_utilities)
-target_link_libraries(libclient_utilities PRIVATE libmemcachedinternal)
-target_include_directories(libclient_utilities PUBLIC
- ${CMAKE_SOURCE_DIR}/include
- ${CMAKE_BINARY_DIR}/include
- ${CMAKE_SOURCE_DIR}/src
- ${CMAKE_BINARY_DIR}/src
- ${CMAKE_BINARY_DIR})
-
+add_subdirectory(common)
foreach(CLIENT IN LISTS CLIENTS)
add_executable(${CLIENT} ${CLIENT}.cc)
target_include_directories(${CLIENT} PRIVATE ..)
- target_link_libraries(${CLIENT} PRIVATE libclient_utilities)
+ target_link_libraries(${CLIENT} PRIVATE libclient_common)
if(CMAKE_INSTALL_RPATH)
set_target_properties(${CLIENT} PROPERTIES
INSTALL_RPATH ${CMAKE_INSTALL_RPATH}/../${CMAKE_INSTALL_LIBDIR})
if(ENABLE_MEMASLAP)
if(LIBEVENT AND HAVE_C_STDATOMIC)
add_executable(memaslap memaslap.c
- ms_conn.c ms_setting.c ms_sigsegv.c ms_stats.c ms_task.c ms_thread.c)
- target_include_directories(memaslap PRIVATE ${LIBEVENT_INCLUDEDIR})
- target_link_libraries(memaslap PRIVATE libclient_utilities ${LIBEVENT_LIBRARIES} Threads::Threads)
+ 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 ${LIBEVENT_INCLUDEDIR})
+ target_link_libraries(memaslap PRIVATE libclient_common ${LIBEVENT_LIBRARIES} Threads::Threads)
if(CMAKE_INSTALL_RPATH)
set_target_properties(${CLIENT} PROPERTIES
INSTALL_RPATH ${CMAKE_INSTALL_RPATH}/../${CMAKE_INSTALL_LIBDIR})
+++ /dev/null
-/* LibMemcached
- * Copyright (C) 2006-2009 Brian Aker
- * All rights reserved.
- *
- * Use and distribution licensed under the BSD license. See
- * the COPYING file in the parent directory for full text.
- *
- * Summary:
- *
- */
-
-#pragma once
-
-typedef struct memcached_help_text_st memcached_help_text_st;
-
-enum memcached_options {
- OPT_SERVERS= 's',
- OPT_VERSION= 'V',
- OPT_HELP= 'h',
- OPT_VERBOSE= 'v',
- OPT_DEBUG= 'd',
- OPT_ANALYZE= 'a',
- OPT_FLAG= 257,
- OPT_EXPIRE,
- OPT_SET,
- OPT_REPLACE,
- OPT_ADD,
- OPT_SLAP_EXECUTE_NUMBER,
- OPT_SLAP_INITIAL_LOAD,
- OPT_SLAP_TEST,
- OPT_SLAP_CONCURRENCY,
- OPT_SLAP_NON_BLOCK,
- OPT_SLAP_TCP_NODELAY,
- OPT_FLUSH,
- OPT_HASH,
- OPT_BINARY,
- OPT_UDP,
- OPT_BUFFER,
- OPT_USERNAME,
- OPT_PASSWD,
- OPT_STAT_ARGS,
- OPT_SERVER_VERSION,
- OPT_QUIET,
- OPT_FILE= 'f'
-};
--- /dev/null
+add_library(libclient_common STATIC utilities.cc generator.cc execute.cc)
+add_library(client_common ALIAS libclient_common)
+target_link_libraries(libclient_common PRIVATE libmemcachedinternal)
+target_include_directories(libclient_common PUBLIC
+ .
+ ${CMAKE_SOURCE_DIR}/include
+ ${CMAKE_BINARY_DIR}/include
+ ${CMAKE_SOURCE_DIR}/src
+ ${CMAKE_BINARY_DIR}/src
+ ${CMAKE_BINARY_DIR})
--- /dev/null
+/* LibMemcached
+ * Copyright (C) 2006-2009 Brian Aker
+ * All rights reserved.
+ *
+ * Use and distribution licensed under the BSD license. See
+ * the COPYING file in the parent directory for full text.
+ *
+ * Summary:
+ *
+ */
+
+#pragma once
+
+typedef struct memcached_help_text_st memcached_help_text_st;
+
+enum memcached_options {
+ OPT_SERVERS= 's',
+ OPT_VERSION= 'V',
+ OPT_HELP= 'h',
+ OPT_VERBOSE= 'v',
+ OPT_DEBUG= 'd',
+ OPT_ANALYZE= 'a',
+ OPT_FLAG= 257,
+ OPT_EXPIRE,
+ OPT_SET,
+ OPT_REPLACE,
+ OPT_ADD,
+ OPT_SLAP_EXECUTE_NUMBER,
+ OPT_SLAP_INITIAL_LOAD,
+ OPT_SLAP_TEST,
+ OPT_SLAP_CONCURRENCY,
+ OPT_SLAP_NON_BLOCK,
+ OPT_SLAP_TCP_NODELAY,
+ OPT_FLUSH,
+ OPT_HASH,
+ OPT_BINARY,
+ OPT_UDP,
+ OPT_BUFFER,
+ OPT_USERNAME,
+ OPT_PASSWD,
+ OPT_STAT_ARGS,
+ OPT_SERVER_VERSION,
+ OPT_QUIET,
+ OPT_FILE= 'f'
+};
--- /dev/null
+/* LibMemcached
+ * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
+ * Copyright (C) 2006-2009 Brian Aker
+ * All rights reserved.
+ *
+ * Use and distribution licensed under the BSD license. See
+ * the COPYING file in the parent directory for full text.
+ *
+ * Summary:
+ *
+ */
+
+/*
+ Execute a memcached_set() a set of pairs.
+ Return the number of rows set.
+*/
+
+#include "mem_config.h"
+#include "execute.h"
+
+unsigned int execute_set(memcached_st *memc, pairs_st *pairs, unsigned int number_of)
+{
+ uint32_t count= 0;
+ for (; count < number_of; ++count)
+ {
+ memcached_return_t rc= memcached_set(memc, pairs[count].key, pairs[count].key_length,
+ pairs[count].value, pairs[count].value_length,
+ 0, 0);
+ if (memcached_failed(rc))
+ {
+ fprintf(stderr, "%s:%d Failure on %u insert (%s) of %.*s\n",
+ __FILE__, __LINE__, count,
+ memcached_last_error_message(memc),
+ (unsigned int)pairs[count].key_length, pairs[count].key);
+
+ // We will try to reconnect and see if that fixes the issue
+ memcached_quit(memc);
+
+ return count;
+ }
+ }
+
+ return count;
+}
+
+/*
+ Execute a memcached_get() on a set of pairs.
+ Return the number of rows retrieved.
+*/
+unsigned int execute_get(memcached_st *memc, pairs_st *pairs, unsigned int number_of)
+{
+ unsigned int x;
+ unsigned int retrieved;
+
+
+ for (retrieved= 0,x= 0; x < number_of; x++)
+ {
+ size_t value_length;
+ uint32_t flags;
+
+ unsigned int fetch_key= (unsigned int)((unsigned int)random() % number_of);
+
+ memcached_return_t rc;
+ char *value= memcached_get(memc, pairs[fetch_key].key, pairs[fetch_key].key_length,
+ &value_length, &flags, &rc);
+
+ if (memcached_failed(rc))
+ {
+ fprintf(stderr, "%s:%d Failure on read(%s) of %.*s\n",
+ __FILE__, __LINE__,
+ memcached_last_error_message(memc),
+ (unsigned int)pairs[fetch_key].key_length, pairs[fetch_key].key);
+ }
+ else
+ {
+ retrieved++;
+ }
+
+ ::free(value);
+ }
+
+ return retrieved;
+}
+
+/**
+ * Callback function to count the number of results
+ */
+static memcached_return_t callback_counter(const memcached_st *ptr,
+ memcached_result_st *result,
+ void *context)
+{
+ (void)ptr;
+ (void)result;
+ unsigned int *counter= (unsigned int *)context;
+ *counter= *counter + 1;
+
+ return MEMCACHED_SUCCESS;
+}
+
+/**
+ * Try to run a large mget to get all of the keys
+ * @param memc memcached handle
+ * @param keys the keys to get
+ * @param key_length the length of the keys
+ * @param number_of the number of keys to try to get
+ * @return the number of keys received
+ */
+unsigned int execute_mget(memcached_st *memc,
+ const char * const *keys,
+ size_t *key_length,
+ unsigned int number_of)
+{
+ unsigned int retrieved= 0;
+ memcached_execute_fn callbacks[]= { callback_counter };
+ memcached_return_t rc;
+ rc= memcached_mget_execute(memc, keys, key_length,
+ (size_t)number_of, callbacks, &retrieved, 1);
+
+ if (rc == MEMCACHED_SUCCESS || rc == MEMCACHED_NOTFOUND ||
+ rc == MEMCACHED_BUFFERED || rc == MEMCACHED_END)
+ {
+ rc= memcached_fetch_execute(memc, callbacks, (void *)&retrieved, 1);
+ if (rc != MEMCACHED_SUCCESS && rc != MEMCACHED_NOTFOUND && rc != MEMCACHED_END)
+ {
+ fprintf(stderr, "%s:%d Failed to execute mget: %s\n",
+ __FILE__, __LINE__,
+ memcached_strerror(memc, rc));
+ memcached_quit(memc);
+ return 0;
+ }
+ }
+ else
+ {
+ fprintf(stderr, "%s:%d Failed to execute mget: %s\n",
+ __FILE__, __LINE__,
+ memcached_strerror(memc, rc));
+ memcached_quit(memc);
+ return 0;
+ }
+
+ return retrieved;
+}
--- /dev/null
+/* LibMemcached
+ * Copyright (C) 2006-2009 Brian Aker
+ * All rights reserved.
+ *
+ * Use and distribution licensed under the BSD license. See
+ * the COPYING file in the parent directory for full text.
+ *
+ * Summary:
+ *
+ */
+
+#pragma once
+
+#include <stdio.h>
+
+#include "libmemcached-1.0/memcached.h"
+#include "generator.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+unsigned int execute_set(memcached_st *memc, pairs_st *pairs, unsigned int number_of);
+unsigned int execute_get(memcached_st *memc, pairs_st *pairs, unsigned int number_of);
+unsigned int execute_mget(memcached_st *memc, const char * const *keys, size_t *key_length,
+ unsigned int number_of);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
--- /dev/null
+/* LibMemcached
+ * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
+ * Copyright (C) 2006-2009 Brian Aker
+ * All rights reserved.
+ *
+ * Use and distribution licensed under the BSD license. See
+ * the COPYING file in the parent directory for full text.
+ *
+ * Summary:
+ *
+ */
+
+#include "mem_config.h"
+
+#include <stdint.h>
+
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <iostream>
+#include <unistd.h>
+
+#include "generator.h"
+
+#define KEY_BYTES 20
+
+/* Use this for string generation */
+static const char ALPHANUMERICS[]=
+ "0123456789ABCDEFGHIJKLMNOPQRSTWXYZabcdefghijklmnopqrstuvwxyz";
+
+#define ALPHANUMERICS_SIZE (sizeof(ALPHANUMERICS)-1)
+
+static size_t get_alpha_num(void)
+{
+ return (size_t)random() % ALPHANUMERICS_SIZE;
+}
+
+void get_random_string(char *buffer, size_t size)
+{
+ char *buffer_ptr= buffer;
+
+ while (--size)
+ {
+ *buffer_ptr++= ALPHANUMERICS[get_alpha_num()];
+ }
+ *buffer_ptr++= ALPHANUMERICS[get_alpha_num()];
+}
+
+void pairs_free(pairs_st *pairs)
+{
+ if (pairs == NULL)
+ {
+ return;
+ }
+
+ /* We free until we hit the null pair we stores during creation */
+ for (uint32_t x= 0; pairs[x].key; x++)
+ {
+ free(pairs[x].key);
+ if (pairs[x].value)
+ {
+ free(pairs[x].value);
+ }
+ }
+
+ free(pairs);
+}
+
+pairs_st *pairs_generate(uint64_t number_of, size_t value_length)
+{
+ pairs_st *pairs= (pairs_st*)calloc((size_t)number_of + 1, sizeof(pairs_st));
+
+ if (pairs == NULL)
+ {
+ goto error;
+ }
+
+ for (uint64_t x= 0; x < number_of; x++)
+ {
+ pairs[x].key= (char *)calloc(KEY_BYTES, sizeof(char));
+
+ if (pairs[x].key == NULL)
+ goto error;
+
+ get_random_string(pairs[x].key, KEY_BYTES);
+ pairs[x].key_length= KEY_BYTES;
+
+ if (value_length)
+ {
+ pairs[x].value= (char *)calloc(value_length, sizeof(char));
+
+ if (pairs[x].value == NULL)
+ goto error;
+
+ get_random_string(pairs[x].value, value_length);
+ pairs[x].value_length= value_length;
+ }
+ else
+ {
+ pairs[x].value= NULL;
+ pairs[x].value_length= 0;
+ }
+ }
+
+ return pairs;
+error:
+ std::cerr << "Memory Allocation failure in pairs_generate." << std::endl;
+ exit(EXIT_SUCCESS);
+}
--- /dev/null
+/* LibMemcached
+ * Copyright (C) 2006-2009 Brian Aker
+ * All rights reserved.
+ *
+ * Use and distribution licensed under the BSD license. See
+ * the COPYING file in the parent directory for full text.
+ *
+ * Summary:
+ *
+ */
+
+/*
+ Code to generate data to be pushed into memcached
+*/
+
+#pragma once
+
+typedef struct pairs_st pairs_st;
+
+struct pairs_st {
+ char *key;
+ size_t key_length;
+ char *value;
+ size_t value_length;
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+pairs_st *pairs_generate(uint64_t number_of, size_t value_length);
+void pairs_free(pairs_st *pairs);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
--- /dev/null
+/* LibMemcached
+ * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
+ * Copyright (C) 2006-2009 Brian Aker
+ * All rights reserved.
+ *
+ * Use and distribution licensed under the BSD license. See
+ * the COPYING file in the parent directory for full text.
+ *
+ * Summary:
+ *
+ */
+#include "mem_config.h"
+
+#include "utilities.h"
+
+#include <cstdio>
+#include <cassert>
+#include <cstdlib>
+#include <cstring>
+#include <ctype.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+
+long int timedif(struct timeval a, struct timeval b)
+{
+ long us, s;
+
+ us = (int)(a.tv_usec - b.tv_usec);
+ us /= 1000;
+ s = (int)(a.tv_sec - b.tv_sec);
+ s *= 1000;
+ return s + us;
+}
+
+void version_command(const char *command_name)
+{
+ printf("%s v%u.%u\n", command_name, 1U, 0U);
+ exit(EXIT_SUCCESS);
+}
+
+void close_stdio(void)
+{
+ int fd;
+ if ((fd = open("/dev/null", O_RDWR, 0)) < 0)
+ {
+ return;
+ }
+ else
+ {
+ if (dup2(fd, STDIN_FILENO) < 0)
+ {
+ return;
+ }
+
+ if (dup2(fd, STDOUT_FILENO) < 0)
+ {
+ return;
+ }
+
+ if (dup2(fd, STDERR_FILENO) < 0)
+ {
+ return;
+ }
+
+ if (fd > STDERR_FILENO)
+ {
+ close(fd);
+ }
+ }
+}
+
+
+static const char *lookup_help(memcached_options option)
+{
+ switch (option)
+ {
+ case OPT_SERVERS: return("List which servers you wish to connect to.");
+ 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_VERBOSE: return("Give more details on the progression of the application.");
+ case OPT_QUIET: return("stderr and stdin will be closed at application startup.");
+ case OPT_DEBUG: return("Provide output only useful for debugging.");
+ case OPT_FLAG: return("Provide flag information for storage operation.");
+ case OPT_EXPIRE: return("Set the expire option for the object.");
+ case OPT_SET: return("Use set command with memcached when storing.");
+ case OPT_REPLACE: return("Use replace command with memcached when storing.");
+ case OPT_ADD: return("Use add command with memcached when storing.");
+ case OPT_SLAP_EXECUTE_NUMBER: return("Number of times to execute the given test.");
+ case OPT_SLAP_INITIAL_LOAD: return("Number of key pairs to load before executing tests.");
+ case OPT_SLAP_TEST: return("Test to run (currently \"get\" or \"set\").");
+ case OPT_SLAP_CONCURRENCY: return("Number of users to simulate with load.");
+ case OPT_SLAP_NON_BLOCK: return("Set TCP up to use non-blocking IO.");
+ case OPT_SLAP_TCP_NODELAY: return("Set TCP socket up to use nodelay.");
+ case OPT_FLUSH: return("Flush servers before running tests.");
+ case OPT_HASH: return("Select hash type.");
+ case OPT_BINARY: return("Switch to binary protocol.");
+ case OPT_ANALYZE: return("Analyze the provided servers.");
+ case OPT_UDP: return("Use UDP protocol when communicating with server.");
+ case OPT_BUFFER: return("Enable request buffering.");
+ case OPT_USERNAME: return "Username to use for SASL authentication";
+ case OPT_PASSWD: return "Password to use for SASL authentication";
+ case OPT_FILE: return "Path to file in which to save result";
+ case OPT_STAT_ARGS: return "Argument for statistics";
+ case OPT_SERVER_VERSION: return "Memcached daemon software version";
+ default:
+ break;
+ };
+
+ assert(0);
+ return "forgot to document this function :)";
+}
+
+void help_command(const char *command_name, const char *description,
+ const struct option *long_options,
+ memcached_programs_help_st *options)
+{
+ unsigned int x;
+ (void)options;
+
+ printf("%s v%u.%u\n\n", command_name, 1U, 0U);
+ printf("\t%s\n\n", description);
+ printf("Current options. A '=' means the option takes a value.\n\n");
+
+ for (x= 0; long_options[x].name; x++)
+ {
+ const char *help_message;
+
+ printf("\t --%s%c\n", long_options[x].name,
+ long_options[x].has_arg ? '=' : ' ');
+ if ((help_message= lookup_help(memcached_options(long_options[x].val))))
+ printf("\t\t%s\n", help_message);
+ }
+
+ printf("\n");
+ exit(EXIT_SUCCESS);
+}
+
+void process_hash_option(memcached_st *memc, char *opt_hash)
+{
+ uint64_t set;
+ memcached_return_t rc;
+
+ if (opt_hash == NULL)
+ {
+ return;
+ }
+
+ set= MEMCACHED_HASH_DEFAULT; /* Just here to solve warning */
+ if (!strcasecmp(opt_hash, "CRC"))
+ {
+ set= MEMCACHED_HASH_CRC;
+ }
+ else if (!strcasecmp(opt_hash, "FNV1_64"))
+ {
+ set= MEMCACHED_HASH_FNV1_64;
+ }
+ else if (!strcasecmp(opt_hash, "FNV1A_64"))
+ {
+ set= MEMCACHED_HASH_FNV1A_64;
+ }
+ else if (!strcasecmp(opt_hash, "FNV1_32"))
+ {
+ set= MEMCACHED_HASH_FNV1_32;
+ }
+ else if (!strcasecmp(opt_hash, "FNV1A_32"))
+ {
+ set= MEMCACHED_HASH_FNV1A_32;
+ }
+ else
+ {
+ fprintf(stderr, "hash: type not recognized %s\n", opt_hash);
+ exit(EXIT_FAILURE);
+ }
+
+ rc= memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_HASH, set);
+ if (rc != MEMCACHED_SUCCESS)
+ {
+ fprintf(stderr, "hash: memcache error %s\n", memcached_strerror(memc, rc));
+ exit(EXIT_FAILURE);
+ }
+}
+
+void initialize_sockets(void)
+{
+ /* Define the function for all platforms to avoid #ifdefs in each program */
+#if defined(_WIN32)
+ WSADATA wsaData;
+ if (WSAStartup(MAKEWORD(2,0), &wsaData) != 0)
+ {
+ fprintf(stderr, "Socket Initialization Error. Program aborted\n");
+ exit(EXIT_FAILURE);
+ }
+#endif // #if defined(_WIN32)
+}
--- /dev/null
+/* LibMemcached
+ * Copyright (C) 2006-2009 Brian Aker
+ * All rights reserved.
+ *
+ * Use and distribution licensed under the BSD license. See
+ * the COPYING file in the parent directory for full text.
+ *
+ * Summary:
+ *
+ */
+
+#pragma once
+
+#include <getopt.h>
+#include "libmemcached-1.0/memcached.h"
+#include "client_options.h"
+
+#if defined(HAVE_SYS_TIME_H)
+# include <sys/time.h>
+#endif
+
+#if defined(HAVE_TIME_H)
+# include <time.h>
+#endif
+
+
+#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
+
+typedef struct memcached_programs_help_st memcached_programs_help_st;
+
+struct memcached_programs_help_st
+{
+ char *not_used_yet;
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+char *strdup_cleanup(const char *str);
+void cleanup(void);
+long int timedif(struct timeval a, struct timeval b);
+void version_command(const char *command_name) __attribute__ ((noreturn));
+void help_command(const char *command_name, const char *description,
+ const struct option *long_options,
+ memcached_programs_help_st *options) __attribute__ ((noreturn));
+void process_hash_option(memcached_st *memc, char *opt_hash);
+bool initialize_sasl(memcached_st *memc, char *user, char *password);
+void shutdown_sasl(void);
+void initialize_sockets(void);
+void close_stdio(void);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+++ /dev/null
-/* LibMemcached
- * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
- * Copyright (C) 2006-2009 Brian Aker
- * All rights reserved.
- *
- * Use and distribution licensed under the BSD license. See
- * the COPYING file in the parent directory for full text.
- *
- * Summary:
- *
- */
-
-/*
- Execute a memcached_set() a set of pairs.
- Return the number of rows set.
-*/
-
-#include "mem_config.h"
-#include "execute.h"
-
-unsigned int execute_set(memcached_st *memc, pairs_st *pairs, unsigned int number_of)
-{
- uint32_t count= 0;
- for (; count < number_of; ++count)
- {
- memcached_return_t rc= memcached_set(memc, pairs[count].key, pairs[count].key_length,
- pairs[count].value, pairs[count].value_length,
- 0, 0);
- if (memcached_failed(rc))
- {
- fprintf(stderr, "%s:%d Failure on %u insert (%s) of %.*s\n",
- __FILE__, __LINE__, count,
- memcached_last_error_message(memc),
- (unsigned int)pairs[count].key_length, pairs[count].key);
-
- // We will try to reconnect and see if that fixes the issue
- memcached_quit(memc);
-
- return count;
- }
- }
-
- return count;
-}
-
-/*
- Execute a memcached_get() on a set of pairs.
- Return the number of rows retrieved.
-*/
-unsigned int execute_get(memcached_st *memc, pairs_st *pairs, unsigned int number_of)
-{
- unsigned int x;
- unsigned int retrieved;
-
-
- for (retrieved= 0,x= 0; x < number_of; x++)
- {
- size_t value_length;
- uint32_t flags;
-
- unsigned int fetch_key= (unsigned int)((unsigned int)random() % number_of);
-
- memcached_return_t rc;
- char *value= memcached_get(memc, pairs[fetch_key].key, pairs[fetch_key].key_length,
- &value_length, &flags, &rc);
-
- if (memcached_failed(rc))
- {
- fprintf(stderr, "%s:%d Failure on read(%s) of %.*s\n",
- __FILE__, __LINE__,
- memcached_last_error_message(memc),
- (unsigned int)pairs[fetch_key].key_length, pairs[fetch_key].key);
- }
- else
- {
- retrieved++;
- }
-
- ::free(value);
- }
-
- return retrieved;
-}
-
-/**
- * Callback function to count the number of results
- */
-static memcached_return_t callback_counter(const memcached_st *ptr,
- memcached_result_st *result,
- void *context)
-{
- (void)ptr;
- (void)result;
- unsigned int *counter= (unsigned int *)context;
- *counter= *counter + 1;
-
- return MEMCACHED_SUCCESS;
-}
-
-/**
- * Try to run a large mget to get all of the keys
- * @param memc memcached handle
- * @param keys the keys to get
- * @param key_length the length of the keys
- * @param number_of the number of keys to try to get
- * @return the number of keys received
- */
-unsigned int execute_mget(memcached_st *memc,
- const char * const *keys,
- size_t *key_length,
- unsigned int number_of)
-{
- unsigned int retrieved= 0;
- memcached_execute_fn callbacks[]= { callback_counter };
- memcached_return_t rc;
- rc= memcached_mget_execute(memc, keys, key_length,
- (size_t)number_of, callbacks, &retrieved, 1);
-
- if (rc == MEMCACHED_SUCCESS || rc == MEMCACHED_NOTFOUND ||
- rc == MEMCACHED_BUFFERED || rc == MEMCACHED_END)
- {
- rc= memcached_fetch_execute(memc, callbacks, (void *)&retrieved, 1);
- if (rc != MEMCACHED_SUCCESS && rc != MEMCACHED_NOTFOUND && rc != MEMCACHED_END)
- {
- fprintf(stderr, "%s:%d Failed to execute mget: %s\n",
- __FILE__, __LINE__,
- memcached_strerror(memc, rc));
- memcached_quit(memc);
- return 0;
- }
- }
- else
- {
- fprintf(stderr, "%s:%d Failed to execute mget: %s\n",
- __FILE__, __LINE__,
- memcached_strerror(memc, rc));
- memcached_quit(memc);
- return 0;
- }
-
- return retrieved;
-}
+++ /dev/null
-/* LibMemcached
- * Copyright (C) 2006-2009 Brian Aker
- * All rights reserved.
- *
- * Use and distribution licensed under the BSD license. See
- * the COPYING file in the parent directory for full text.
- *
- * Summary:
- *
- */
-
-#pragma once
-
-#include <stdio.h>
-
-#include "libmemcached-1.0/memcached.h"
-#include "generator.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-unsigned int execute_set(memcached_st *memc, pairs_st *pairs, unsigned int number_of);
-unsigned int execute_get(memcached_st *memc, pairs_st *pairs, unsigned int number_of);
-unsigned int execute_mget(memcached_st *memc, const char * const *keys, size_t *key_length,
- unsigned int number_of);
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
+++ /dev/null
-/* LibMemcached
- * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
- * Copyright (C) 2006-2009 Brian Aker
- * All rights reserved.
- *
- * Use and distribution licensed under the BSD license. See
- * the COPYING file in the parent directory for full text.
- *
- * Summary:
- *
- */
-
-#include "mem_config.h"
-
-#include <stdint.h>
-
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-#include <iostream>
-#include <unistd.h>
-
-#include "generator.h"
-
-#define KEY_BYTES 20
-
-/* Use this for string generation */
-static const char ALPHANUMERICS[]=
- "0123456789ABCDEFGHIJKLMNOPQRSTWXYZabcdefghijklmnopqrstuvwxyz";
-
-#define ALPHANUMERICS_SIZE (sizeof(ALPHANUMERICS)-1)
-
-static size_t get_alpha_num(void)
-{
- return (size_t)random() % ALPHANUMERICS_SIZE;
-}
-
-void get_random_string(char *buffer, size_t size)
-{
- char *buffer_ptr= buffer;
-
- while (--size)
- {
- *buffer_ptr++= ALPHANUMERICS[get_alpha_num()];
- }
- *buffer_ptr++= ALPHANUMERICS[get_alpha_num()];
-}
-
-void pairs_free(pairs_st *pairs)
-{
- if (pairs == NULL)
- {
- return;
- }
-
- /* We free until we hit the null pair we stores during creation */
- for (uint32_t x= 0; pairs[x].key; x++)
- {
- free(pairs[x].key);
- if (pairs[x].value)
- {
- free(pairs[x].value);
- }
- }
-
- free(pairs);
-}
-
-pairs_st *pairs_generate(uint64_t number_of, size_t value_length)
-{
- pairs_st *pairs= (pairs_st*)calloc((size_t)number_of + 1, sizeof(pairs_st));
-
- if (pairs == NULL)
- {
- goto error;
- }
-
- for (uint64_t x= 0; x < number_of; x++)
- {
- pairs[x].key= (char *)calloc(KEY_BYTES, sizeof(char));
-
- if (pairs[x].key == NULL)
- goto error;
-
- get_random_string(pairs[x].key, KEY_BYTES);
- pairs[x].key_length= KEY_BYTES;
-
- if (value_length)
- {
- pairs[x].value= (char *)calloc(value_length, sizeof(char));
-
- if (pairs[x].value == NULL)
- goto error;
-
- get_random_string(pairs[x].value, value_length);
- pairs[x].value_length= value_length;
- }
- else
- {
- pairs[x].value= NULL;
- pairs[x].value_length= 0;
- }
- }
-
- return pairs;
-error:
- std::cerr << "Memory Allocation failure in pairs_generate." << std::endl;
- exit(EXIT_SUCCESS);
-}
+++ /dev/null
-/* LibMemcached
- * Copyright (C) 2006-2009 Brian Aker
- * All rights reserved.
- *
- * Use and distribution licensed under the BSD license. See
- * the COPYING file in the parent directory for full text.
- *
- * Summary:
- *
- */
-
-/*
- Code to generate data to be pushed into memcached
-*/
-
-#pragma once
-
-typedef struct pairs_st pairs_st;
-
-struct pairs_st {
- char *key;
- size_t key_length;
- char *value;
- size_t value_length;
-};
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-pairs_st *pairs_generate(uint64_t number_of, size_t value_length);
-void pairs_free(pairs_st *pairs);
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
+++ /dev/null
-#!/bin/sh
-src/bin/memcapable -vh localhost
+++ /dev/null
-#!/bin/sh
-src/bin/memcp.sh
-src/bin/memcat --servers=localhost -v mem.testdata
+++ /dev/null
-#!/bin/sh
-src/bin/memcp -v --servers localhost mem.testdata
+++ /dev/null
-#!/bin/bash
-src/bin/memdump -v --servers localhost
+++ /dev/null
-#!/bin/sh
-src/bin/memerror 0 1 2 3
+++ /dev/null
-#!/bin/bash
-src/bin/memcp.sh
-src/bin/memexist -v --servers localhost mem.testdata
+++ /dev/null
-#!/bin/sh
-src/bin/memflush -v --servers localhost
+++ /dev/null
-#!/bin/sh
-src/bin/memparse --server=localhost:11211/?1 --server=127.0.0.1:11211/?2
+++ /dev/null
-#!/bin/sh
-src/bin/memping -v --servers localhost
+++ /dev/null
-#!/bin/sh
-src/bin/memcp.sh
-src/bin/memrm -v --servers localhost mem.testdata
+++ /dev/null
-#!/bin/sh
-src/bin/memslap -v --servers localhost
+++ /dev/null
-#!/bin/bash
-src/bin/memstat -v --servers localhost
+++ /dev/null
-#!/bin/sh
-src/bin/memcp.sh
-src/bin/memtouch -v --servers localhost mem.testdata
+++ /dev/null
-/* LibMemcached
- * Copyright (C) 2006-2009 Brian Aker
- * All rights reserved.
- *
- * Use and distribution licensed under the BSD license. See
- * the COPYING file in the parent directory for full text.
- *
- * Summary:
- *
- */
-
-#ifndef CLIENTS_MS_ATOMIC_H
-#define CLIENTS_MS_ATOMIC_H
-
-#if HAVE_C_STDATOMIC
-# define ATOMIC _Atomic
-#else
-# define ATOMIC volatile
-#endif
-
-#if defined(__SUNPRO_C)
-# define _KERNEL
-# include <atomic.h>
-# if SIZEOF_SIZE_T == 8
-# define atomic_add_size(X, Y) atomic_add_64((X), (Y))
-# define atomic_add_size_nv(X, Y) atomic_add_64((X), (Y))
-# define atomic_dec_size(X, Y) atomic_add_64((X), (Y))
-# define atomic_dec_size_nv(X, Y) atomic_add_64((X), (Y))
-# else
-# define atomic_add_size(X, Y) atomic_add_32((X), (Y))
-# define atomic_add_size_nv(X, Y) atomic_add_32((X), (Y))
-# define atomic_dec_size(X, Y) atomic_add_32((X), (Y))
-# define atomic_dec_size_nv(X, Y) atomic_add_32((X), (Y))
-# endif
-# undef _KERNEL
-#elif HAVE_GCC_ATOMIC_BUILTINS
-# define atomic_add_8(X, Y) __sync_fetch_and_add((X), (Y))
-# define atomic_add_16(X, Y) __sync_fetch_and_add((X), (Y))
-# define atomic_add_32(X, Y) __sync_fetch_and_add((X), (Y))
-# define atomic_add_size(X, Y) __sync_fetch_and_add((X), (Y))
-# define atomic_dec_8(X) __sync_fetch_and_sub((X), 1)
-# define atomic_dec_16(X) __sync_fetch_and_sub((X), 1)
-# define atomic_dec_32(X) __sync_fetch_and_sub((X), 1)
-# define atomic_dec_size(X) __sync_fetch_and_sub((X), 1)
-/* The same as above, but these return the new value instead of void */
-# define atomic_add_8_nv(X, Y) __sync_fetch_and_add((X), (Y))
-# define atomic_add_16_nv(X, Y) __sync_fetch_and_add((X), (Y))
-# define atomic_add_32_nv(X, Y) __sync_fetch_and_add((X), (Y))
-# define atomic_add_size_nv(X, Y) __sync_fetch_and_add((X), (Y))
-# define atomic_dec_8_nv(X) __sync_fetch_and_sub((X), 1)
-# define atomic_dec_16_nv(X) __sync_fetch_and_sub((X), 1)
-# define atomic_dec_32_nv(X) __sync_fetch_and_sub((X), 1)
-# define atomic_dec_size_nv(X) __sync_fetch_and_sub((X), 1)
-#elif HAVE_C_STDATOMIC
-# include <stdatomic.h>
-# define atomic_add_8(X, Y) atomic_fetch_add(X, Y)
-# define atomic_add_16(X, Y) atomic_fetch_add(X, Y)
-# define atomic_add_32(X, Y) atomic_fetch_add(X, Y)
-# define atomic_add_size(X, Y) atomic_fetch_add(X, Y)
-# define atomic_dec_8(X) atomic_fetch_sub(X, 1)
-# define atomic_dec_16(X) atomic_fetch_sub(X, 1)
-# define atomic_dec_32(X) atomic_fetch_sub(X, 1)
-# define atomic_dec_size(X) atomic_fetch_sub(X, 1)
-/* The same as above, but these return the new value instead of void */
-# define ATOMIC_ADD_FETCH_DECL(T) \
-static inline T atomic_add_fetch_##T(ATOMIC T *ptr, T add) { \
- T des, cur = atomic_load(ptr); \
- do { \
- des = cur + add; \
- } while(!atomic_compare_exchange_weak(ptr, &cur, des)); \
- return des; \
-}
-# define ATOMIC_SUB_FETCH_DECL(T) \
-T atomic_sub_fetch_##T(ATOMIC T *ptr) { \
- T des, cur = atomic_load(ptr); \
- do { \
- des = cur - 1; \
- } while(!atomic_compare_exchange_weak(ptr, &cur, des)); \
- return des; \
-}
-ATOMIC_ADD_FETCH_DECL(uint8_t)
-# define atomic_add_8_nv(X, Y) atomic_add_fetch_uint8_t(X, Y)
-ATOMIC_ADD_FETCH_DECL(uint16_t)
-# define atomic_add_16_nv(X, Y) atomic_add_fetch_uint16_t(X, Y)
-ATOMIC_ADD_FETCH_DECL(uint32_t)
-# define atomic_add_32_nv(X, Y) atomic_add_fetch_uint32_t(X, Y)
-ATOMIC_ADD_FETCH_DECL(size_t)
-# define atomic_add_size_nv(X, Y) atomic_add_fetch_size_t(X, Y)
-# define atomic_dec_8_nv(X) atomic_sub_fetch<uint8_t>(X, Y)
-# define atomic_dec_16_nv(X) atomic_sub_fetch<uint16_t>(X, Y)
-# define atomic_dec_32_nv(X) atomic_sub_fetch<uint32_t>(X, Y)
-# define atomic_dec_size_nv(X) atomic_sub_fetch<size_t>(X, Y)
-#else
-#warning "Atomic operators not found so memslap will not work correctly"
-# define atomic_add_8(X, Y) 0
-# define atomic_add_16(X, Y) 0
-# define atomic_add_32(X, Y) 0
-# define atomic_add_size(X, Y) 0
-# define atomic_dec_8(X) 0
-# define atomic_dec_16(X) 0
-# define atomic_dec_32(X) 0
-# define atomic_dec_size(X) 0
-/* The same as above, but these return the new value instead of void */
-# define atomic_add_8_nv(X, Y) 0
-# define atomic_add_16_nv(X, Y) 0
-# define atomic_add_32_nv(X, Y) 0
-# define atomic_add_size_nv(X, Y) 0
-# define atomic_dec_8_nv(X) 0
-# define atomic_dec_16_nv(X) 0
-# define atomic_dec_32_nv(X) 0
-# define atomic_dec_size_nv(X) 0
-#endif /* defined(__SUNPRO_C) */
-
-#endif /* CLIENTS_MS_ATOMIC_H */
+++ /dev/null
-/*
- * File: ms_conn.c
- * Author: Mingqiang Zhuang
- *
- * Created on February 10, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
-
-#include "mem_config.h"
-
-#include <stdio.h>
-#include <inttypes.h>
-#include <limits.h>
-#include <sys/uio.h>
-#include <event.h>
-#include <fcntl.h>
-#include <netinet/tcp.h>
-#include <netinet/in.h>
-
-#if defined(HAVE_ARPA_INET_H)
-# include <arpa/inet.h>
-#endif
-
-#if defined(HAVE_SYS_TIME_H)
-# include <sys/time.h>
-#endif
-
-#if defined(HAVE_TIME_H)
-# include <time.h>
-#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 != NULL)
- free(c->rudpbuf);
- if (c->udppkt != NULL)
- 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 != NULL);
-
- 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 != NULL)
- free(c->rbuf);
- if (c->wbuf != NULL)
- free(c->wbuf);
- if (c->iov != NULL)
- free(c->iov);
- if (c->msglist != NULL)
- free(c->msglist);
- if (c->mlget_task.mlget_item != NULL)
- free(c->mlget_task.mlget_item);
- if (c->tcpsfd != NULL)
- 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) != 0)
- {
- 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 != NULL);
- assert(c->tcpsfd != NULL);
-
- 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) != 0)
- {
- 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) != 0)
- {
- 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 != 0)
- {
- 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) != 0)
- {
- return -1;
- }
-
- if (ms_conn_init(c, conn_write, DATA_BUFFER_SIZE, ms_setting.udp) != 0)
- {
- return -1;
- }
-
- if (ms_conn_sock_init(c) != 0)
- {
- return -1;
- }
-
- if (ms_conn_event_init(c) != 0)
- {
- 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 != NULL)
- {
- if (c->hdrbuf != NULL)
- free(c->hdrbuf);
- if (c->msglist != NULL)
- free(c->msglist);
- if (c->rbuf != NULL)
- free(c->rbuf);
- if (c->wbuf != NULL)
- free(c->wbuf);
- if (c->iov != NULL)
- free(c->iov);
- if (c->mlget_task.mlget_item != NULL)
- free(c->mlget_task.mlget_item);
- if (c->rudpbuf != NULL)
- free(c->rudpbuf);
- if (c->udppkt != NULL)
- free(c->udppkt);
- if (c->item_win != NULL)
- free(c->item_win);
- if (c->tcpsfd != NULL)
- 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 != NULL);
-
- /* 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)
- {
- pthread_exit(NULL);
- }
-} /* 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) != 0)
- {
- 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 != 0)
- {
- if (error != EAI_SYSTEM)
- fprintf(stderr, "getaddrinfo(): %s.\n", gai_strerror(error));
- else
- perror("getaddrinfo()\n");
-
- 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 != NULL)
- {
- *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] != 0)
- {
- 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 != NULL);
-
- 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 != 0; 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 != NULL && tokens != NULL && 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 != NULL);
-
- /**
- * 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 != 0)
- {
- printf("<%d ERROR %s\n", c->sfd, strerror(errno));
- }
- c->currcmd.key_prefix= *(uint64_t *)tokens[KEY_TOKEN].value;
-
- /*
- * 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 != NULL);
-
- 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 != 0)
- {
- /* 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 != NULL);
- 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 != NULL);
- assert(buf != NULL);
- 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 != NULL)
- && (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 != NULL);
-
- 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 != 0) /* 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) != 0))
- {
- 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 != NULL)
- {
- 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 != NULL);
- 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 != NULL);
- 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 != NULL);
- 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 != NULL);
-
- 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 != NULL);
-
- 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 != NULL);
-
- 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) != 0)
- 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 != NULL);
-
- 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 != NULL);
-
- 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 != NULL);
-
- 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 != NULL);
-
- 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 != NULL);
-
- 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 != NULL);
-
- 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) != 0)
- {
- break;
- }
- }
-
- if (ms_try_read_network(c) != 0)
- {
- 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) != 0))
- {
- 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) != 0)
- {
- 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 != NULL);
-
- 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 != NULL);
-
- 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 != 0);
- 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) != 0)
- || (ms_add_iov(c, (char *)&item->key_prefix,
- (int)KEY_PREFIX_SIZE) != 0)
- || (ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset],
- item->key_size - (int)KEY_PREFIX_SIZE) != 0)
- || (ms_add_iov(c, buffer, write_len) != 0)
- || (ms_add_iov(c, &ms_setting.char_block[value_offset],
- item->value_size) != 0)
- || (ms_add_iov(c, "\r\n", 2) != 0)
- || (c->udp && (ms_build_udp_headers(c) != 0)))
- {
- 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 != NULL);
-
- c->currcmd.cmd= CMD_SET;
- c->currcmd.isfinish= false;
- c->currcmd.retstat= MCD_FAILURE;
-
- if (ms_update_conn_sock_event(c) != 0)
- {
- return -1;
- }
-
- c->msgcurr= 0;
- c->msgused= 0;
- c->iovused= 0;
- if (ms_add_msghdr(c) != 0)
- {
- 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) != 0)
- {
- return -1;
- }
- }
- else
- {
- if (ms_build_ascii_write_buf_set(c, item) != 0)
- {
- 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) != 0)
- || (ms_add_iov(c, (char *)&item->key_prefix,
- (int)KEY_PREFIX_SIZE) != 0)
- || (ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset],
- item->key_size - (int)KEY_PREFIX_SIZE) != 0)
- || (ms_add_iov(c, "\r\n", 2) != 0)
- || (c->udp && (ms_build_udp_headers(c) != 0)))
- {
- 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 != NULL);
-
- c->currcmd.cmd= CMD_GET;
- c->currcmd.isfinish= false;
- c->currcmd.retstat= MCD_FAILURE;
-
- if (ms_update_conn_sock_event(c) != 0)
- {
- return -1;
- }
-
- c->msgcurr= 0;
- c->msgused= 0;
- c->iovused= 0;
- if (ms_add_msghdr(c) != 0)
- {
- 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) != 0)
- {
- return -1;
- }
- }
- else
- {
- if (ms_build_ascii_write_buf_get(c, item) != 0)
- {
- 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) != 0)
- {
- return -1;
- }
-
- for (int i= 0; i < c->mlget_task.mlget_num; i++)
- {
- item= c->mlget_task.mlget_item[i].item;
- assert(item != NULL);
- if ((ms_add_iov(c, " ", 1) != 0)
- || (ms_add_iov(c, (char *)&item->key_prefix,
- (int)KEY_PREFIX_SIZE) != 0)
- || (ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset],
- item->key_size - (int)KEY_PREFIX_SIZE) != 0))
- {
- return -1;
- }
- }
-
- if ((ms_add_iov(c, "\r\n", 2) != 0)
- || (c->udp && (ms_build_udp_headers(c) != 0)))
- {
- 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 != NULL);
- 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) != 0)
- {
- return -1;
- }
-
- c->msgcurr= 0;
- c->msgused= 0;
- c->iovused= 0;
- if (ms_add_msghdr(c) != 0)
- {
- fprintf(stderr, "Out of memory preparing request.");
- return -1;
- }
-
- /* binary protocol */
- if (c->protocol == binary_prot)
- {
- if (ms_build_bin_write_buf_mlget(c) != 0)
- {
- return -1;
- }
- }
- else
- {
- if (ms_build_ascii_write_buf_mlget(c) != 0)
- {
- 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 != NULL);
-
- 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 != NULL)
- {
- 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 != NULL);
-
- 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 != NULL);
-
- 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 */
+++ /dev/null
-/*
- * File: ms_conn.h
- * Author: Mingqiang Zhuang
- *
- * Created on February 10, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
-#ifndef MS_CONN_H
-#define MS_CONN_H
-
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <event.h>
-#include <netdb.h>
-
-#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 */
+++ /dev/null
-/*
- * File: ms_memslap.h
- * Author: Mingqiang Zhuang
- *
- * Created on February 10, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
-#ifndef MS_MEMSLAP_H
-#define MS_MEMSLAP_H
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include <assert.h>
-#include <unistd.h>
-#include <stdint.h>
-#include <pthread.h>
-#if !defined(__cplusplus)
-# include <stdbool.h>
-#endif
-#include <math.h>
-
-#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 */
+++ /dev/null
-/*
- * File: ms_setting.c
- * Author: Mingqiang Zhuang
- *
- * Created on February 10, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
-
-#include "mem_config.h"
-
-#include "libmemcached/memcached.h"
-
-#include <ctype.h>
-#include <inttypes.h>
-#include <limits.h>
-#include <pwd.h>
-#include <strings.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-
-
-#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 <limits.h>
-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 != 0)
- 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 != NULL);
-
- 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(strerror(errno));
- 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 != NULL)
- {
- 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 != 0)
- {
- 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 != 0))
- {
- 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 != NULL)
- {
- free(ms_setting.distr);
- }
-
- if (ms_setting.char_block != NULL)
- {
- free(ms_setting.char_block);
- }
-
- if (ms_setting.srv_str != NULL)
- {
- free(ms_setting.srv_str);
- }
-
- if (ms_setting.cfg_file != NULL)
- {
- free(ms_setting.cfg_file);
- }
-
- if (ms_setting.servers != NULL)
- {
- free(ms_setting.servers);
- }
-
- if (ms_setting.key_distr != NULL)
- {
- free(ms_setting.key_distr);
- }
-
- if (ms_setting.value_distr != NULL)
- {
- free(ms_setting.value_distr);
- }
-} /* ms_setting_cleanup */
+++ /dev/null
-/*
- * File: ms_setting.h
- * Author: Mingqiang Zhuang
- *
- * Created on February 10, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
-#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 */
+++ /dev/null
-/*
- * File: ms_sigsegv.c
- * Author: Mingqiang Zhuang
- *
- * Created on March 15, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- * Rewrite of stack dump:
- * Copyright (C) 2009 Sun Microsystems
- * Author Trond Norbye
- */
-
-#include "mem_config.h"
-
-#include <memory.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <signal.h>
-#include <pthread.h>
-
-#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
+++ /dev/null
-/*
- * File: ms_sigsegv.h
- * Author: Mingqiang Zhuang
- *
- * Created on March 15, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
-#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 */
+++ /dev/null
-/*
- * File: ms_stats.h
- * Author: Mingqiang Zhuang
- *
- * Created on March 25, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
-
-#include "mem_config.h"
-
-#include <inttypes.h>
-#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 != 0)
- {
- 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] != 0)
- {
- 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] != 0)
- || (stat->dist[i + 1] != 0)
- || (stat->dist[i + 2] != 0)
- || (stat->dist[i + 3] != 0))
- {
- 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 */
+++ /dev/null
-/*
- * File: ms_stats.h
- * Author: Mingqiang Zhuang
- *
- * Created on March 25, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
-#ifndef MS_STAT_H
-#define MS_STAT_H
-
-#include <math.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-
-#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 */
+++ /dev/null
-/*
- * File: ms_task.c
- * Author: Mingqiang Zhuang
- *
- * Created on February 10, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
-
-#include "mem_config.h"
-
-#if defined(HAVE_SYS_TIME_H)
-# include <sys/time.h>
-#endif
-
-#if defined(HAVE_TIME_H)
-# include <time.h>
-#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 != NULL);
- 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 != NULL);
-
- 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 != NULL);
- 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 != NULL);
- 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 != NULL);
-
- 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 != NULL);
- assert(item != NULL);
-
- 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 != NULL);
- assert(item != NULL);
-
- 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 != NULL);
-
- 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 != NULL);
-
- item= ms_get_cur_opt_item(c);
- if (item == NULL)
- {
- return;
- }
- assert(item != NULL);
-
- 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) != 0)
- {
- return -1;
- }
- }
-
- return EXIT_SUCCESS;
-} /* ms_exec_task */
+++ /dev/null
-/*
- * File: ms_task.h
- * Author: Mingqiang Zhuang
- *
- * Created on February 10, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
-#ifndef MS_TASK_H
-#define MS_TASK_H
-
-#include <sys/types.h>
-#include <stdint.h>
-#if !defined(__cplusplus)
-# include <stdbool.h>
-#endif
-#include <time.h>
-
-#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 */
+++ /dev/null
-/*
- * File: ms_thread.c
- * Author: Mingqiang Zhuang
- *
- * Created on February 10, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
-
-#include "mem_config.h"
-
-#if defined(HAVE_SYS_TIME_H)
-# include <sys/time.h>
-#endif
-
-#if defined(HAVE_TIME_H)
-# include <time.h>
-#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 *), void *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_init();
- 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]) != 0)
- {
- /* 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) != 0)
- {
- 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);
-
- 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 *), void *arg)
-{
- pthread_t thread;
- pthread_attr_t attr;
- int ret;
-
- pthread_attr_init(&attr);
-
- if ((ret= pthread_create(&thread, &attr, func, arg)) != 0)
- {
- 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, (void *)&ms_thread_ctx[i]);
- }
-} /* ms_thread_init */
-
-
-/* cleanup some resource of threads when all the threads exit */
-void ms_thread_cleanup()
-{
- if (ms_thread_ctx != NULL)
- {
- free(ms_thread_ctx);
- }
- pthread_key_delete(ms_thread_key);
-} /* ms_thread_cleanup */
+++ /dev/null
-/*
- * File: ms_thread.h
- * Author: Mingqiang Zhuang
- *
- * Created on February 10, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
-
-/**
- * Asynchronous memslap has the similar implementation of
- * multi-threads with memcached. Asynchronous memslap creates
- * one or more self-governed threads; each thread is bound with
- * one CPU core if the system supports setting CPU core
- * affinity. And every thread has private variables. There is
- * less communication or some shared resources among all the
- * threads. It can improve the performance because there are
- * fewer locks and competition. In addition, 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. All the concurrencies don't
- * communicate with each other even though they are in the same
- * thread.
- */
-#ifndef MS_THREAD_H
-#define MS_THREAD_H
-
-#include <sched.h>
-#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 */
-} 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 */
+++ /dev/null
-/* LibMemcached
- * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
- * Copyright (C) 2006-2009 Brian Aker
- * All rights reserved.
- *
- * Use and distribution licensed under the BSD license. See
- * the COPYING file in the parent directory for full text.
- *
- * Summary:
- *
- */
-#include "mem_config.h"
-
-#include "utilities.h"
-
-#include <cstdio>
-#include <cassert>
-#include <cstdlib>
-#include <cstring>
-#include <ctype.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-
-long int timedif(struct timeval a, struct timeval b)
-{
- long us, s;
-
- us = (int)(a.tv_usec - b.tv_usec);
- us /= 1000;
- s = (int)(a.tv_sec - b.tv_sec);
- s *= 1000;
- return s + us;
-}
-
-void version_command(const char *command_name)
-{
- printf("%s v%u.%u\n", command_name, 1U, 0U);
- exit(EXIT_SUCCESS);
-}
-
-void close_stdio(void)
-{
- int fd;
- if ((fd = open("/dev/null", O_RDWR, 0)) < 0)
- {
- return;
- }
- else
- {
- if (dup2(fd, STDIN_FILENO) < 0)
- {
- return;
- }
-
- if (dup2(fd, STDOUT_FILENO) < 0)
- {
- return;
- }
-
- if (dup2(fd, STDERR_FILENO) < 0)
- {
- return;
- }
-
- if (fd > STDERR_FILENO)
- {
- close(fd);
- }
- }
-}
-
-
-static const char *lookup_help(memcached_options option)
-{
- switch (option)
- {
- case OPT_SERVERS: return("List which servers you wish to connect to.");
- 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_VERBOSE: return("Give more details on the progression of the application.");
- case OPT_QUIET: return("stderr and stdin will be closed at application startup.");
- case OPT_DEBUG: return("Provide output only useful for debugging.");
- case OPT_FLAG: return("Provide flag information for storage operation.");
- case OPT_EXPIRE: return("Set the expire option for the object.");
- case OPT_SET: return("Use set command with memcached when storing.");
- case OPT_REPLACE: return("Use replace command with memcached when storing.");
- case OPT_ADD: return("Use add command with memcached when storing.");
- case OPT_SLAP_EXECUTE_NUMBER: return("Number of times to execute the given test.");
- case OPT_SLAP_INITIAL_LOAD: return("Number of key pairs to load before executing tests.");
- case OPT_SLAP_TEST: return("Test to run (currently \"get\" or \"set\").");
- case OPT_SLAP_CONCURRENCY: return("Number of users to simulate with load.");
- case OPT_SLAP_NON_BLOCK: return("Set TCP up to use non-blocking IO.");
- case OPT_SLAP_TCP_NODELAY: return("Set TCP socket up to use nodelay.");
- case OPT_FLUSH: return("Flush servers before running tests.");
- case OPT_HASH: return("Select hash type.");
- case OPT_BINARY: return("Switch to binary protocol.");
- case OPT_ANALYZE: return("Analyze the provided servers.");
- case OPT_UDP: return("Use UDP protocol when communicating with server.");
- case OPT_BUFFER: return("Enable request buffering.");
- case OPT_USERNAME: return "Username to use for SASL authentication";
- case OPT_PASSWD: return "Password to use for SASL authentication";
- case OPT_FILE: return "Path to file in which to save result";
- case OPT_STAT_ARGS: return "Argument for statistics";
- case OPT_SERVER_VERSION: return "Memcached daemon software version";
- default:
- break;
- };
-
- assert(0);
- return "forgot to document this function :)";
-}
-
-void help_command(const char *command_name, const char *description,
- const struct option *long_options,
- memcached_programs_help_st *options)
-{
- unsigned int x;
- (void)options;
-
- printf("%s v%u.%u\n\n", command_name, 1U, 0U);
- printf("\t%s\n\n", description);
- printf("Current options. A '=' means the option takes a value.\n\n");
-
- for (x= 0; long_options[x].name; x++)
- {
- const char *help_message;
-
- printf("\t --%s%c\n", long_options[x].name,
- long_options[x].has_arg ? '=' : ' ');
- if ((help_message= lookup_help(memcached_options(long_options[x].val))))
- printf("\t\t%s\n", help_message);
- }
-
- printf("\n");
- exit(EXIT_SUCCESS);
-}
-
-void process_hash_option(memcached_st *memc, char *opt_hash)
-{
- uint64_t set;
- memcached_return_t rc;
-
- if (opt_hash == NULL)
- {
- return;
- }
-
- set= MEMCACHED_HASH_DEFAULT; /* Just here to solve warning */
- if (!strcasecmp(opt_hash, "CRC"))
- {
- set= MEMCACHED_HASH_CRC;
- }
- else if (!strcasecmp(opt_hash, "FNV1_64"))
- {
- set= MEMCACHED_HASH_FNV1_64;
- }
- else if (!strcasecmp(opt_hash, "FNV1A_64"))
- {
- set= MEMCACHED_HASH_FNV1A_64;
- }
- else if (!strcasecmp(opt_hash, "FNV1_32"))
- {
- set= MEMCACHED_HASH_FNV1_32;
- }
- else if (!strcasecmp(opt_hash, "FNV1A_32"))
- {
- set= MEMCACHED_HASH_FNV1A_32;
- }
- else
- {
- fprintf(stderr, "hash: type not recognized %s\n", opt_hash);
- exit(EXIT_FAILURE);
- }
-
- rc= memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_HASH, set);
- if (rc != MEMCACHED_SUCCESS)
- {
- fprintf(stderr, "hash: memcache error %s\n", memcached_strerror(memc, rc));
- exit(EXIT_FAILURE);
- }
-}
-
-void initialize_sockets(void)
-{
- /* Define the function for all platforms to avoid #ifdefs in each program */
-#if defined(_WIN32)
- WSADATA wsaData;
- if (WSAStartup(MAKEWORD(2,0), &wsaData) != 0)
- {
- fprintf(stderr, "Socket Initialization Error. Program aborted\n");
- exit(EXIT_FAILURE);
- }
-#endif // #if defined(_WIN32)
-}
+++ /dev/null
-/* LibMemcached
- * Copyright (C) 2006-2009 Brian Aker
- * All rights reserved.
- *
- * Use and distribution licensed under the BSD license. See
- * the COPYING file in the parent directory for full text.
- *
- * Summary:
- *
- */
-
-#pragma once
-
-#include <getopt.h>
-#include "libmemcached-1.0/memcached.h"
-#include "client_options.h"
-
-#if defined(HAVE_SYS_TIME_H)
-# include <sys/time.h>
-#endif
-
-#if defined(HAVE_TIME_H)
-# include <time.h>
-#endif
-
-
-#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
-
-typedef struct memcached_programs_help_st memcached_programs_help_st;
-
-struct memcached_programs_help_st
-{
- char *not_used_yet;
-};
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-char *strdup_cleanup(const char *str);
-void cleanup(void);
-long int timedif(struct timeval a, struct timeval b);
-void version_command(const char *command_name) __attribute__ ((noreturn));
-void help_command(const char *command_name, const char *description,
- const struct option *long_options,
- memcached_programs_help_st *options) __attribute__ ((noreturn));
-void process_hash_option(memcached_st *memc, char *opt_hash);
-bool initialize_sasl(memcached_st *memc, char *user, char *password);
-void shutdown_sasl(void);
-void initialize_sockets(void);
-void close_stdio(void);
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
projects / awesomized / libmemcached / commitdiff
