/*
- * File: ms_conn.c
- * Author: Mingqiang Zhuang
- *
- * Created on February 10, 2009
- *
- * (c) Copyright 2009, Schooner Information Technology, Inc.
- * http://www.schoonerinfotech.com/
- *
- */
+ +--------------------------------------------------------------------+
+ | libmemcached - C/C++ Client Library for memcached |
+ +--------------------------------------------------------------------+
+ | Redistribution and use in source and binary forms, with or without |
+ | modification, are permitted under the terms of the BSD license. |
+ | You should have received a copy of the license in a bundled file |
+ | named LICENSE; in case you did not receive a copy you can review |
+ | the terms online at: https://opensource.org/licenses/BSD-3-Clause |
+ +--------------------------------------------------------------------+
+ | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ |
+ | Copyright (c) 2020 Michael Wallner <mike@php.net> |
+ +--------------------------------------------------------------------+
+*/
#include "mem_config.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>
+# include <sys/time.h>
#endif
#if defined(HAVE_TIME_H)
-# include <time.h>
+# include <time.h>
#endif
#include "ms_setting.h"
* 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
+# 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
+#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
+#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
+#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;
+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;
+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,
+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_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_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_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_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_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,
+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
*
* @return uint64_t
*/
-uint64_t ms_get_key_prefix(void)
-{
+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 |= 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)
-{
+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;
+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
*
*
* @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;
+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->rudpsize = UDP_DATA_BUFFER_SIZE;
+ c->hdrsize = 0;
- c->rudpbytes= 0;
- c->packets= 0;
- c->recvpkt= 0;
- c->pktcurr= 0;
- c->ordcurr= 0;
+ c->rudpbytes = 0;
+ c->packets = 0;
+ c->recvpkt = 0;
+ c->pktcurr = 0;
+ c->ordcurr = 0;
- c->udp= is_udp;
+ 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->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)
+ if ((c->rudpbuf == NULL) || (c->udppkt == NULL)) {
+ if (c->rudpbuf)
free(c->rudpbuf);
- if (c->udppkt != NULL)
+ if (c->udppkt)
free(c->udppkt);
fprintf(stderr, "malloc()\n");
return -1;
return EXIT_SUCCESS;
} /* ms_conn_udp_init */
-
/**
* initialize the connection structure
*
*
* @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;
+static int ms_conn_init(ms_conn_t *c, const int init_state, const int read_buffer_size,
+ const bool is_udp) {
+ assert(c);
+
+ c->rbuf = c->wbuf = 0;
+ c->iov = 0;
+ c->msglist = 0;
+
+ c->rsize = read_buffer_size;
+ c->wsize = WRITE_BUFFER_SIZE;
+ c->iovsize = IOV_LIST_INITIAL;
+ c->msgsize = MSG_LIST_INITIAL;
/* for replication, each connection need connect all the server */
- if (ms_setting.rep_write_srv > 0)
- {
- c->total_sfds= ms_setting.srv_cnt * ms_setting.sock_per_conn;
- }
- else
- {
- c->total_sfds= ms_setting.sock_per_conn;
+ 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->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->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));
+ 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) || (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)
+ if (c->rbuf)
free(c->rbuf);
- if (c->wbuf != NULL)
+ if (c->wbuf)
free(c->wbuf);
- if (c->iov != NULL)
+ if (c->iov)
free(c->iov);
- if (c->msglist != NULL)
+ if (c->msglist)
free(c->msglist);
- if (c->mlget_task.mlget_item != NULL)
+ if (c->mlget_task.mlget_item)
free(c->mlget_task.mlget_item);
- if (c->tcpsfd != NULL)
+ if (c->tcpsfd)
free(c->tcpsfd);
fprintf(stderr, "malloc()\n");
return -1;
}
- c->state= init_state;
- c->rvbytes= 0;
- c->rbytes= 0;
- c->rcurr= c->rbuf;
- c->wcurr= c->wbuf;
- c->iovused= 0;
- c->msgcurr= 0;
- c->msgused= 0;
- c->cur_idx= c->total_sfds; /* default index is a invalid value */
+ c->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->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->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 */
+ 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;
+ 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)
- {
+ if (ms_conn_udp_init(c, is_udp)) {
return -1;
}
/* initialize task */
ms_task_init(c);
- if (! (ms_setting.facebook_test && is_udp))
- {
+ 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
*
* @param c, pointer of the concurrency
*/
-static void ms_warmup_num_init(ms_conn_t *c)
-{
+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;
+ 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.
*
* @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)
- {
+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);
+ 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;
+ 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;
+ 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;
+ } else {
+ c->item_win[i].exp_time = 0;
}
}
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
*
* @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);
+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;
+ uint32_t srv_idx = 0;
- assert(c != NULL);
- assert(c->tcpsfd != NULL);
+ assert(c);
+ assert(c->tcpsfd);
- for (i= 0; i < c->total_sfds; i++)
- {
- ret_sfd= 0;
- if (ms_setting.rep_write_srv > 0)
- {
+ 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
- {
+ 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;
+ 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)
+ ms_setting.servers[srv_idx].srv_port, ms_setting.udp, &ret_sfd)
+)
{
break;
}
- if (i == 0)
- {
- c->sfd= ret_sfd;
+ if (i == 0) {
+ c->sfd = ret_sfd;
}
- if (! ms_setting.udp)
- {
- c->tcpsfd[i]= 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_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)
+ ms_setting.servers[srv_idx].srv_port, true, &ret_sfd)
+)
{
- c->udpsfd= 0;
- }
- else
- {
- c->udpsfd= ret_sfd;
+ c->udpsfd = 0;
+ } else {
+ c->udpsfd = ret_sfd;
}
}
- if ((i != c->total_sfds) || (ms_setting.facebook_test && (c->udpsfd == 0)))
- {
- if (ms_setting.udp)
- {
+ 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++)
- {
+ } else {
+ for (uint32_t j = 0; j < i; j++) {
close(c->tcpsfd[j]);
}
}
- if (c->udpsfd != 0)
- {
+ if (c->udpsfd) {
close(c->udpsfd);
}
return EXIT_SUCCESS;
} /* ms_conn_sock_init */
-
/**
* each connection is managed by libevent, this function
* initialize the event of the connection structure.
*
* @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;
+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_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;
+ c->ev_flags = event_flags;
- if (event_add(&c->event, NULL) == -1)
- {
+ 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.
*
* @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)
- {
+int ms_setup_conn(ms_conn_t *c) {
+ if (ms_item_win_init(c)) {
return -1;
}
- if (ms_conn_init(c, conn_write, DATA_BUFFER_SIZE, ms_setting.udp) != 0)
- {
+ if (ms_conn_init(c, conn_write, DATA_BUFFER_SIZE, ms_setting.udp)) {
return -1;
}
- if (ms_conn_sock_init(c) != 0)
- {
+ if (ms_conn_sock_init(c)) {
return -1;
}
- if (ms_conn_event_init(c) != 0)
- {
+ if (ms_conn_event_init(c)) {
return -1;
}
return EXIT_SUCCESS;
} /* ms_setup_conn */
-
/**
* Frees a connection.
*
* @param c, pointer of the concurrency
*/
-void ms_conn_free(ms_conn_t *c)
-{
- ms_thread_t *ms_thread= pthread_getspecific(ms_thread_key);
- if (c != NULL)
- {
- if (c->hdrbuf != NULL)
+void ms_conn_free(ms_conn_t *c) {
+ ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key);
+ if (c) {
+ if (c->hdrbuf)
free(c->hdrbuf);
- if (c->msglist != NULL)
+ if (c->msglist)
free(c->msglist);
- if (c->rbuf != NULL)
+ if (c->rbuf)
free(c->rbuf);
- if (c->wbuf != NULL)
+ if (c->wbuf)
free(c->wbuf);
- if (c->iov != NULL)
+ if (c->iov)
free(c->iov);
- if (c->mlget_task.mlget_item != NULL)
+ if (c->mlget_task.mlget_item)
free(c->mlget_task.mlget_item);
- if (c->rudpbuf != NULL)
+ if (c->rudpbuf)
free(c->rudpbuf);
- if (c->udppkt != NULL)
+ if (c->udppkt)
free(c->udppkt);
- if (c->item_win != NULL)
+ if (c->item_win)
free(c->item_win);
- if (c->tcpsfd != NULL)
+ if (c->tcpsfd)
free(c->tcpsfd);
- if (--ms_thread->nactive_conn == 0)
- {
+ 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);
+static void ms_conn_close(ms_conn_t *c) {
+ ms_thread_t *ms_thread = pthread_getspecific(ms_thread_key);
+ assert(c);
/* delete the event, the socket and the connection */
event_del(&c->event);
- for (uint32_t i= 0; i < c->total_sfds; i++)
- {
- if (c->tcpsfd[i] > 0)
- {
+ for (uint32_t i = 0; i < c->total_sfds; i++) {
+ if (c->tcpsfd[i] > 0) {
close(c->tcpsfd[i]);
}
}
- c->sfd= 0;
+ c->sfd = 0;
- if (ms_setting.facebook_test)
- {
+ if (ms_setting.facebook_test) {
close(c->udpsfd);
}
ms_conn_free(c);
- if (ms_setting.run_time == 0)
- {
+ 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);
+ if (ms_thread->nactive_conn == 0) {
+ event_base_loopbreak(ms_thread->base);
}
} /* ms_conn_close */
-
/**
* create a new sock
*
*
* @return int, if success, return EXIT_SUCCESS, else return -1
*/
-static int ms_new_socket(struct addrinfo *ai)
-{
+static int ms_new_socket(struct addrinfo *ai) {
int sfd;
- if ((sfd= socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol)) == -1)
- {
+ 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;
+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)
- {
+ if (getsockopt(sfd, SOL_SOCKET, SO_SNDBUF, &old_size, &intsize)) {
fprintf(stderr, "getsockopt(SO_SNDBUF)\n");
return;
}
/* Binary-search for the real maximum. */
- min= old_size;
- max= MAX_SENDBUF_SIZE;
+ 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;
+ 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;
+ (void) last_good;
} /* ms_maximize_sndbuf */
-
/**
* socket connects the server
*
*
* @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)
-{
+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 linger ling = {0, 0};
struct addrinfo *ai;
struct addrinfo *next;
struct addrinfo hints;
char port_buf[NI_MAXSERV];
- int error;
- int success= 0;
+ int error;
+ int success = 0;
- int flags= 1;
+ int flags = 1;
/*
* the memset call clears nonstandard fields in some impementations
*/
memset(&hints, 0, sizeof(hints));
#ifdef AI_ADDRCONFIG
- hints.ai_flags= AI_PASSIVE | AI_ADDRCONFIG;
+ hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
#else
- hints.ai_flags= AI_PASSIVE;
+ 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;
+ 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)
- {
+ error = getaddrinfo(srv_host_name, port_buf, &hints, &ai);
+ if (error) {
if (error != EAI_SYSTEM)
fprintf(stderr, "getaddrinfo(): %s.\n", gai_strerror(error));
else
return -1;
}
- for (next= ai; next; next= next->ai_next)
- {
- if ((sfd= ms_new_socket(next)) == -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)
- {
+ 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));
+ } 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);
+ 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)
- {
+ } 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))
- {
+ 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;
+ if (ret_sfd) {
+ *ret_sfd = sfd;
}
success++;
return success == 0;
} /* ms_network_connect */
-
/**
* reconnect a disconnected sock
*
*
* @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;
+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;
+ 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;
+ c->tcpsfd[c->cur_idx] = 0;
- if (atomic_add_32_nv(&ms_setting.servers[srv_idx].disconn_cnt, 1)
- % srv_conn_cnt == 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,
+ 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;
+ if (ms_setting.rep_write_srv > 0) {
+ uint32_t i = 0;
- for (i= 0; i < c->total_sfds; i++)
- {
- if (c->tcpsfd[i] != 0)
- {
+ for (i = 0; i < c->total_sfds; i++) {
+ if (c->tcpsfd[i]) {
break;
}
}
/* all socks disconnect */
- if (i == c->total_sfds)
- {
+ if (i == c->total_sfds) {
return -1;
}
- }
- else
- {
- do
- {
+ } 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)
+ 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)
- {
+ 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);
+ 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);
+ 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)
- {
+ 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);
+ } 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;
+ 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
*
* @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;
+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);
+ assert(c);
- if ((c->total_sfds == 1) || (c->total_sfds == c->alive_sfds))
- {
+ 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)
- {
+ for (uint32_t i = 0; i < c->total_sfds; i++) {
+ if (c->tcpsfd[i] == 0) {
gettimeofday(&cur_time, NULL);
/**
* 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)
- {
+ 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_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)
+ ms_setting.servers[srv_idx].srv_port, ms_setting.udp, &ret_sfd)
+ == 0)
{
- c->tcpsfd[i]= ret_sfd;
+ 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)
- {
+ 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);
+ 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);
+ 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.
* Usage example:
*
* while(ms_tokenize_command(command, ncommand, tokens, max_tokens) > 0) {
- * for(int ix = 0; tokens[ix].length != 0; ix++) {
+ * for(int ix = 0; tokens[ix].length; ix++) {
* ...
* }
* ncommand = tokens[ix].value - command;
*
* @return int, the number of tokens
*/
-static int ms_tokenize_command(char *command,
- token_t *tokens,
- const int max_tokens)
-{
+static int ms_tokenize_command(char *command, token_t *tokens, const int max_tokens) {
char *s, *e;
- int ntokens= 0;
+ int ntokens = 0;
- assert(command != NULL && tokens != NULL && max_tokens > 1);
+ assert(command && tokens && max_tokens > 1);
- for (s= e= command; ntokens < max_tokens - 1; ++e)
- {
- if (*e == ' ')
- {
- if (s != e)
- {
- tokens[ntokens].value= s;
- tokens[ntokens].length= (size_t)(e - s);
+ 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';
+ *e = '\0';
}
- s= e + 1;
- }
- else if (*e == '\0')
- {
- if (s != e)
- {
- tokens[ntokens].value= s;
- tokens[ntokens].length= (size_t)(e - s);
+ 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 */
+ break; /* string end */
}
}
return ntokens;
} /* ms_tokenize_command */
-
/**
* parse the response of 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;
+static int ms_ascii_process_line(ms_conn_t *c, char *command) {
+ int ret = 0;
int64_t value_len;
- char *buffer= command;
+ char *buffer = command;
- assert(c != NULL);
+ assert(c);
/**
* for command get, we store the returned value into local buffer
* then continue in ms_complete_nread().
*/
- switch (buffer[0])
- {
- case 'V': /* VALUE || VERSION */
- if (buffer[1] == 'A') /* VALUE */
- {
+ 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)
- {
+ errno = 0;
+ value_len = strtol(tokens[VALUELEN_TOKEN].value, NULL, 10);
+ if (errno) {
printf("<%d ERROR %s\n", c->sfd, strerror(errno));
}
memcpy(&c->currcmd.key_prefix, tokens[KEY_TOKEN].value, sizeof(c->currcmd.key_prefix));
* We 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;
+ c->rvbytes = (int) (value_len + 2);
+ c->readval = true;
+ ret = -1;
}
break;
- case 'O': /* OK */
- c->currcmd.retstat= MCD_SUCCESS;
+ 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')
- {
+ 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')
- {
+ 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;
+ 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;
+ 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')
- {
+ 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;
+ c->currcmd.retstat = MCD_NOTSTORED;
+ } else {
+ c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE;
}
break;
- case 'E': /* PROTOCOL ERROR or END */
- if (buffer[1] == 'N')
- {
+ case 'E': /* PROTOCOL ERROR or END */
+ if (buffer[1] == 'N') {
/* END */
- c->currcmd.retstat= MCD_END;
- }
- else if (buffer[1] == 'R')
- {
+ 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;
+ 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;
+ } else {
+ c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE;
}
break;
- case 'C': /* CLIENT ERROR */
+ case 'C': /* CLIENT ERROR */
printf("<%d %s\n", c->sfd, buffer);
- c->currcmd.retstat= MCD_CLIENT_ERROR;
+ c->currcmd.retstat = MCD_CLIENT_ERROR;
break;
default:
- c->currcmd.retstat= MCD_UNKNOWN_READ_FAILURE;
+ 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);
+void ms_reset_conn(ms_conn_t *c, bool timeout) {
+ assert(c);
- if (c->udp)
- {
- if ((c->packets > 0) && (c->packets < MAX_UDP_PACKET))
- {
- memset(c->udppkt, 0, sizeof(ms_udppkt_t) * (size_t)c->packets);
+ 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->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->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 */
+ memcpy(&c->precmd, &c->currcmd, sizeof(ms_cmdstat_t)); /* replicate command state */
- if (timeout)
- {
+ if (timeout) {
ms_drive_machine(c);
}
} /* ms_reset_conn */
-
/**
* if we have a complete line in the buffer, process it.
*
*
* @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)
- {
+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))
- {
+ if ((uint64_t) c->rbytes < sizeof(c->binary_header)) {
/* need more data! */
return EXIT_SUCCESS;
- }
- else
- {
+ } else {
#ifdef NEED_ALIGN
- if (((long)(c->rcurr)) % 8 != 0)
- {
+ if (((long) (c->rcurr)) % 8) {
/* must realign input buffer */
memmove(c->rbuf, c->rcurr, c->rbytes);
- c->rcurr= c->rbuf;
- if (settings.verbose)
- {
+ 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;
+ 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);
+ 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);
+ 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)
- {
+ 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 {
+ c->rbytes -= (int32_t) sizeof(c->binary_header);
+ c->rcurr += sizeof(c->binary_header);
}
}
- }
- else
- {
+ } else {
char *el, *cont;
- assert(c != NULL);
+ assert(c);
assert(c->rcurr <= (c->rbuf + c->rsize));
if (c->rbytes == 0)
return EXIT_SUCCESS;
- el= memchr(c->rcurr, '\n', (size_t)c->rbytes);
- if (! el)
+ 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'))
- {
+ cont = el + 1;
+ if (((el - c->rcurr) > 1) && (*(el - 1) == '\r')) {
el--;
}
- *el= '\0';
+ *el = '\0';
assert(cont <= (c->rcurr + c->rbytes));
/* process this complete line */
- if (ms_ascii_process_line(c, c->rcurr) == 0)
- {
+ if (ms_ascii_process_line(c, c->rcurr) == 0) {
/* current operation completed */
ms_reset_conn(c, false);
return -1;
- }
- else
- {
+ } else {
/* current operation didn't complete */
- c->rbytes-= (int32_t)(cont - c->rcurr);
- c->rcurr= cont;
+ 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.
* @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;
+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);
+ assert(buf);
assert(c->rudpbytes >= UDP_HEADER_SIZE);
/* calculate received packets count */
- if (c->rudpbytes % UDP_MAX_PAYLOAD_SIZE >= UDP_HEADER_SIZE)
- {
+ 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;
+ 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);
+ 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);
+ 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);
+ 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;
+ 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)
- {
+ 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;
+ 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= c->rudpbytes % UDP_MAX_PAYLOAD_SIZE
- - UDP_HEADER_SIZE;
- }
- }
- else
- {
- c->udppkt[seq_num].rbytes= 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++)
- {
+ 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;
+ if ((c->udppkt[i].data) && (c->udppkt[i].copybytes < c->udppkt[i].rbytes)) {
+ header = c->udppkt[i].header;
+ len = c->udppkt[i].rbytes - c->udppkt[i].copybytes;
+ if (len > rbytes - wbytes) {
+ len = rbytes - wbytes;
}
assert(len <= rbytes - wbytes);
assert(i == HEADER_TO_SEQNUM(header));
- memcpy(buf + wbytes, c->udppkt[i].data + c->udppkt[i].copybytes,
- (size_t)len);
- wbytes+= len;
- c->udppkt[i].copybytes+= len;
+ 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))
}
/* no space to copy data */
- if (wbytes >= rbytes)
- {
+ 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))
- {
+ if ((i != c->recvpkt - 1) && (c->udppkt[i].rbytes < UDP_MAX_PAYLOAD_SIZE - UDP_HEADER_SIZE)) {
break;
}
- }
- else
- {
+ } else {
/* no data to copy */
break;
}
}
- (void)packets;
+ (void) packets;
return wbytes == 0 ? -1 : wbytes;
} /* ms_sort_udp_packet */
-
/**
* encapsulate upd read like tcp 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;
+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)
- {
+ 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 */
+ c->rudpbytes = 0; /* ignore what we read */
return -1;
}
- c->rudpbuf= new_rbuf;
- c->rudpsize*= 2;
+ c->rudpbuf = new_rbuf;
+ c->rudpsize *= 2;
}
- avail= c->rudpsize - c->rudpbytes;
+ 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);
+ res = (int) read(c->sfd, c->rudpbuf + c->rudpbytes, (size_t) avail);
- if (res > 0)
- {
+ if (res > 0) {
atomic_add_size(&ms_stats.bytes_read, res);
- c->rudpbytes+= res;
- rbytes+= res;
- if (res == avail)
- {
+ c->rudpbytes += res;
+ rbytes += res;
+ if (res == avail) {
continue;
- }
- else
- {
+ } else {
break;
}
}
- if (res == 0)
- {
+ if (res == 0) {
/* "connection" closed */
return res;
}
- if (res == -1)
- {
+ 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 (rbytes > 0) {
+ copybytes = ms_sort_udp_packet(c, buf, len);
}
- if (copybytes == -1)
- {
+ 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.
* return EXIT_FAILURE if get data
* return -1 if error happens
*/
-static int ms_try_read_network(ms_conn_t *c)
-{
- int gotdata= 0;
+static int ms_try_read_network(ms_conn_t *c) {
+ int gotdata = 0;
int res;
int64_t avail;
- assert(c != NULL);
+ assert(c);
if ((c->rcurr != c->rbuf)
- && (! c->readval || (c->rvbytes > c->rsize - (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;
+ if (c->rbytes) /* otherwise there's nothing to copy */
+ memmove(c->rbuf, c->rcurr, (size_t) c->rbytes);
+ c->rcurr = c->rbuf;
}
- while (1)
- {
- if (c->rbytes >= c->rsize)
- {
- char *new_rbuf= realloc(c->rbuf, (size_t)c->rsize * 2);
- if (! new_rbuf)
- {
+ 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 */
+ c->rbytes = 0; /* ignore what we read */
return -1;
}
- c->rcurr= c->rbuf= new_rbuf;
- c->rsize*= 2;
+ c->rcurr = c->rbuf = new_rbuf;
+ c->rsize *= 2;
}
- avail= c->rsize - c->rbytes - (c->rcurr - c->rbuf);
- if (avail == 0)
- {
+ 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 (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)
- {
+ if (res > 0) {
+ if (!c->udp) {
atomic_add_size(&ms_stats.bytes_read, res);
}
- gotdata= 1;
- c->rbytes+= res;
- if (res == avail)
- {
+ gotdata = 1;
+ c->rbytes += res;
+ if (res == avail) {
continue;
- }
- else
- {
+ } else {
break;
}
}
- if (res == 0)
- {
+ if (res == 0) {
/* connection closed */
ms_conn_set_state(c, conn_closing);
return -1;
}
- if (res == -1)
- {
+ if (res == -1) {
if ((errno == EAGAIN) || (errno == EWOULDBLOCK))
break;
/* Should close on unhandled errors. */
return gotdata;
} /* ms_try_read_network */
-
/**
* after get the object from server, verify the value if
* necessary.
* @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)
- {
+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];
+ 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)
- {
+ if (c->curr_task.item->exp_time > 0) {
struct timeval curr_time;
gettimeofday(&curr_time, NULL);
{
atomic_add_size(&ms_stats.exp_get, 1);
- if (ms_setting.verbose)
- {
+ 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));
+ 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"
"\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);
+ 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))
+ } else {
+ if ((c->curr_task.item->value_size != vlen) || (memcmp(orignval, value, (size_t) vlen)))
{
atomic_add_size(&ms_stats.vef_failed, 1);
- if (ms_setting.verbose)
- {
+ if (ms_setting.verbose) {
fprintf(stderr,
"\n<%d data verification failed\n"
"\tkey len: %d\n"
- "\tkey: %" PRIx64" %.*s\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);
+ 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;
+ c->curr_task.finish_verify = true;
- if (mlget_item != NULL)
- {
- mlget_item->finish_verify= true;
+ if (mlget_item) {
+ mlget_item->finish_verify = true;
}
}
} /* ms_verify_value */
-
/**
* For ASCII protocol, after store the data into the local
* buffer, run this function to handle the data.
*
* @param c, pointer of the concurrency
*/
-static void ms_ascii_complete_nread(ms_conn_t *c)
-{
- assert(c != NULL);
+static void ms_ascii_complete_nread(ms_conn_t *c) {
+ assert(c);
assert(c->rbytes >= c->rvbytes);
assert(c->protocol == ascii_prot);
- if (c->rvbytes > 2)
- {
- assert(
- c->rcurr[c->rvbytes - 1] == '\n' && c->rcurr[c->rvbytes - 2] == '\r');
+ 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))
+ 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
- {
+ 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;
+ 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;
+ 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;
+ 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);
+static void ms_bin_complete_nread(ms_conn_t *c) {
+ assert(c);
assert(c->rbytes >= c->rvbytes);
assert(c->protocol == binary_prot);
- int extlen= c->binary_header.response.extlen;
- int keylen= c->binary_header.response.keylen;
- uint8_t opcode= c->binary_header.response.opcode;
+ 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))
+ 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;
+ 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;
+ 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))
+ 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];
+ 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;
+ 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);
+ 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;
+ 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;
+ c->readval = false;
+ c->rvbytes = 0;
- if (ms_setting.mult_key_num > 1)
- {
+ 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)
- {
+ if (c->mlget_task.value_index == c->mlget_task.mlget_num - 1) {
ms_reset_conn(c, false);
}
- }
- else
- {
+ } 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);
+static void ms_complete_nread(ms_conn_t *c) {
+ assert(c);
assert(c->rbytes >= c->rvbytes);
- assert(c->protocol == ascii_prot
- || c->protocol == binary_prot);
+ assert(c->protocol == ascii_prot || c->protocol == binary_prot);
- if (c->protocol == binary_prot)
- {
+ if (c->protocol == binary_prot) {
ms_bin_complete_nread(c);
- }
- else
- {
+ } else {
ms_ascii_complete_nread(c);
}
} /* ms_complete_nread */
-
/**
* Adds a message header to a connection.
*
*
* @return int, if success, return EXIT_SUCCESS, else return -1
*/
-static int ms_add_msghdr(ms_conn_t *c)
-{
+static int ms_add_msghdr(ms_conn_t *c) {
struct msghdr *msg;
- assert(c != NULL);
+ assert(c);
- if (c->msgsize == c->msgused)
- {
- msg=
- realloc(c->msglist, (size_t)c->msgsize * 2 * sizeof(struct msghdr));
- if (! msg)
+ 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;
+ c->msglist = msg;
+ c->msgsize *= 2;
}
- msg= c->msglist + c->msgused;
+ msg = c->msglist + c->msgused;
/**
* this wipes msg_iovlen, msg_control, msg_controllen, and
*/
memset(msg, 0, sizeof(struct msghdr));
- msg->msg_iov= &c->iov[c->iovused];
+ 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;
+ 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->msgbytes = 0;
c->msgused++;
- if (c->udp)
- {
+ 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.
*
* @return int, if success, return EXIT_SUCCESS, else return -1
*/
-static int ms_ensure_iov_space(ms_conn_t *c)
-{
- assert(c != NULL);
+static int ms_ensure_iov_space(ms_conn_t *c) {
+ assert(c);
- if (c->iovused >= c->iovsize)
- {
+ 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)
+ 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;
+ 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;
+ 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.
*
* @return int, if success, return EXIT_SUCCESS, else return -1
*/
-static int ms_add_iov(ms_conn_t *c, const void *buf, int len)
-{
+static int ms_add_iov(ms_conn_t *c, const void *buf, int len) {
struct msghdr *m;
- int leftover;
+ int leftover;
bool limit_to_mtu;
- assert(c != NULL);
+ assert(c);
- do
- {
- m= &c->msglist[c->msgused - 1];
+ do {
+ m = &c->msglist[c->msgused - 1];
/*
* Limit UDP packets, to UDP_MAX_PAYLOAD_SIZE bytes.
*/
- limit_to_mtu= c->udp;
+ 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)))
+ 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];
+ m = &c->msglist[c->msgused - 1];
}
#endif
- if (ms_ensure_iov_space(c) != 0)
+ if (ms_ensure_iov_space(c))
return -1;
/* If the fragment is too big to fit in the datagram, split it up */
- if (limit_to_mtu && (len + c->msgbytes > UDP_MAX_SEND_PAYLOAD_SIZE))
- {
- leftover= len + c->msgbytes - UDP_MAX_SEND_PAYLOAD_SIZE;
- len-= leftover;
- }
- else
- {
- leftover= 0;
+ 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;
+ 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->msgbytes += len;
c->iovused++;
m->msg_iovlen++;
- buf= ((char *)buf) + len;
- len= leftover;
- }
- while (leftover > 0);
+ 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.
*
*
* @return int, if success, return EXIT_SUCCESS, else return -1
*/
-static int ms_build_udp_headers(ms_conn_t *c)
-{
+static int ms_build_udp_headers(ms_conn_t *c) {
int i;
unsigned char *hdr;
- assert(c != NULL);
+ assert(c);
- c->request_id= ms_get_udp_request_id();
+ c->request_id = ms_get_udp_request_id();
- if (c->msgused > c->hdrsize)
- {
+ if (c->msgused > c->hdrsize) {
void *new_hdrbuf;
if (c->hdrbuf)
- new_hdrbuf= realloc(c->hdrbuf,
- (size_t)c->msgused * 2 * UDP_HEADER_SIZE);
+ 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)
+ 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;
+ 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))
- {
+ 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));
+ 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.
*
* 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);
+static int ms_transmit(ms_conn_t *c) {
+ assert(c);
- if ((c->msgcurr < c->msgused)
- && (c->msglist[c->msgcurr].msg_iovlen == 0))
- {
+ 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)
- {
+ if (c->msgcurr < c->msgused) {
ssize_t res;
- struct msghdr *m= &c->msglist[c->msgcurr];
+ struct msghdr *m = &c->msglist[c->msgcurr];
- res= sendmsg(c->sfd, m, 0);
- if (res > 0)
- {
+ 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;
+ 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;
+ 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))
- {
+ 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;
ms_conn_set_state(c, conn_closing);
return TRANSMIT_HARD_ERROR;
- }
- else
- {
+ } 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
*
* @param c, pointer of the concurrency
*/
-static void ms_conn_shrink(ms_conn_t *c)
-{
- assert(c != NULL);
+static void ms_conn_shrink(ms_conn_t *c) {
+ assert(c);
if (c->udp)
return;
- if ((c->rsize > READ_BUFFER_HIGHWAT) && (c->rbytes < DATA_BUFFER_SIZE))
- {
+ 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);
+ memmove(c->rbuf, c->rcurr, (size_t) c->rbytes);
- newbuf= (char *)realloc((void *)c->rbuf, DATA_BUFFER_SIZE);
+ newbuf = (char *) realloc((void *) c->rbuf, DATA_BUFFER_SIZE);
- if (newbuf)
- {
- c->rbuf= newbuf;
- c->rsize= DATA_BUFFER_SIZE;
+ if (newbuf) {
+ c->rbuf = newbuf;
+ c->rsize = DATA_BUFFER_SIZE;
}
- c->rcurr= c->rbuf;
+ 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;
+ 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;
+ 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;
+ 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
* @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);
+static void ms_conn_set_state(ms_conn_t *c, int state) {
+ assert(c);
- if (state != c->state)
- {
- if (state == conn_read)
- {
+ if (state != c->state) {
+ if (state == conn_read) {
ms_conn_shrink(c);
}
- c->state= state;
+ 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
*
* @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);
+static bool ms_update_event(ms_conn_t *c, const int new_flags) {
+ assert(c);
- struct event_base *base= c->event.ev_base;
+ 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)))
+ && (!ms_setting.facebook_test || (c->total_sfds == 1)))
{
return true;
}
- if (event_del(&c->event) == -1)
- {
+ if (event_del(&c->event) == -1) {
/* try to delete the event again */
- if (event_del(&c->event) == -1)
- {
+ if (event_del(&c->event) == -1) {
return false;
}
}
- event_set(&c->event,
- c->sfd,
- (short)new_flags,
- ms_event_handler,
- (void *)c);
+ 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;
+ c->ev_flags = (short) new_flags;
- if (event_add(&c->event, NULL) == -1)
- {
+ 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
*
* @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;
+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;
+ ms_task_t *task = &c->curr_task;
- if (ms_setting.expected_tps > 0)
- {
+ 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);
+ 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)
- {
+ 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;
+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)))
+ 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))
- {
+ if ((c->currcmd.cmd == CMD_SET) && (item->exp_time > 0)) {
/* record the current time */
- item->client_time= c->start_time.tv_sec;
+ 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;
+static void ms_drive_machine(ms_conn_t *c) {
+ bool stop = false;
- assert(c != NULL);
+ assert(c);
- while (! stop)
- {
- switch (c->state)
- {
+ while (!stop) {
+ switch (c->state) {
case conn_read:
- if (c->readval)
- {
- if (c->rbytes >= c->rvbytes)
- {
+ if (c->readval) {
+ if (c->rbytes >= c->rvbytes) {
ms_complete_nread(c);
break;
}
- }
- else
- {
- if (ms_try_read_line(c) != 0)
- {
+ } else {
+ if (ms_try_read_line(c)) {
break;
}
}
- if (ms_try_read_network(c) != 0)
- {
+ if (ms_try_read_network(c)) {
break;
}
/* doesn't read all the response data, wait event wake up */
- if (! c->currcmd.isfinish)
- {
- if (! ms_update_event(c, EV_READ | EV_PERSIST))
- {
+ 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;
+ 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 */
+ memcpy(&c->precmd, &c->currcmd, sizeof(ms_cmdstat_t)); /* replicate command state */
break;
case conn_write:
- if (! c->ctnwrite && ms_need_yield(c))
- {
+ if (!c->ctnwrite && ms_need_yield(c)) {
usleep(10);
- if (! ms_update_event(c, EV_WRITE | EV_PERSIST))
- {
+ 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;
+ stop = true;
break;
}
- if (! c->ctnwrite && (ms_exec_task(c) != 0))
- {
+ if (!c->ctnwrite && (ms_exec_task(c))) {
ms_conn_set_state(c, conn_closing);
break;
}
/* record the start time before starting to send data if necessary */
- if (! c->ctnwrite || (c->change_sfd && c->ctnwrite))
- {
- if (c->change_sfd)
- {
- c->change_sfd= false;
+ 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;
+ 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))
- {
+ 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;
+ stop = true;
break;
}
- switch (ms_transmit(c))
- {
+ 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))
- {
+ 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;
+ c->ctnwrite = false;
break;
}
ms_conn_set_state(c, conn_read);
- c->ctnwrite= false;
- stop= true;
+ c->ctnwrite = false;
+ stop = true;
break;
case TRANSMIT_INCOMPLETE:
- c->ctnwrite= true;
- break; /* Continue in state machine. */
+ c->ctnwrite = true;
+ break; /* Continue in state machine. */
case TRANSMIT_HARD_ERROR:
- c->ctnwrite= false;
+ c->ctnwrite = false;
break;
case TRANSMIT_SOFT_ERROR:
- c->ctnwrite= true;
- stop= true;
+ c->ctnwrite = true;
+ stop = true;
break;
default:
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_setting.reconnect
+ && (!ms_global.time_out || ((ms_setting.run_time == 0) && (c->remain_exec_num > 0))))
{
- if (ms_reconn(c) != 0)
- {
+ if (ms_reconn(c)) {
ms_conn_close(c);
- stop= true;
+ stop = true;
break;
}
ms_reset_conn(c, false);
- if (c->total_sfds == 1)
- {
- if (! ms_update_event(c, EV_WRITE | EV_PERSIST))
- {
+ 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
- {
+ } else {
ms_conn_close(c);
- stop= true;
+ stop = true;
break;
}
}
} /* ms_drive_machine */
-
/**
* the event handler of each thread
*
* @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;
+void ms_event_handler(const int fd, const short which, void *arg) {
+ ms_conn_t *c = (ms_conn_t *) arg;
- assert(c != NULL);
+ assert(c);
- c->which= which;
+ c->which = which;
/* sanity */
- if (fd != c->sfd)
- {
- fprintf(stderr,
- "Catastrophic: event fd: %d doesn't match conn fd: %d\n",
- fd,
- c->sfd);
+ 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);
}
/* wait for next event */
} /* ms_event_handler */
-
/**
* get the next socket descriptor index to run for replication
*
*
* @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;
+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)
- {
+ if (c->total_sfds == 1) {
return EXIT_SUCCESS;
}
- if (ms_setting.rep_write_srv == 0)
- {
+ 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)
- {
+ 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)
- {
+ if (i == ms_setting.rep_write_srv) {
/* random get one replication server to read */
- sock_index= (uint32_t)random() % c->total_sfds;
- }
- else
- {
+ 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;
+ sock_index = (uint32_t) random() % ms_setting.rep_write_srv;
}
- }
- else if (cmd == CMD_GET)
- {
+ } else if (cmd == CMD_GET) {
/* random get one replication server to read */
- sock_index= (uint32_t)random() % c->total_sfds;
+ sock_index = (uint32_t) random() % c->total_sfds;
}
- }
- while (c->tcpsfd[sock_index] == 0);
+ } while (c->tcpsfd[sock_index] == 0);
return sock_index;
} /* ms_get_rep_sock_index */
-
/**
* get the next socket descriptor index to run
*
*
* @return int, return the index
*/
-static uint32_t ms_get_next_sock_index(ms_conn_t *c)
-{
- uint32_t sock_index= 0;
+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);
+ 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
*
*
* @return int, if success, return EXIT_SUCCESS, else return -1
*/
-static int ms_update_conn_sock_event(ms_conn_t *c)
-{
- assert(c != NULL);
+static int ms_update_conn_sock_event(ms_conn_t *c) {
+ assert(c);
- switch (c->currcmd.cmd)
- {
+ 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;
+ 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;
+ if (ms_setting.facebook_test && !c->udp) {
+ c->sfd = c->udpsfd;
+ c->udp = true;
+ c->change_sfd = true;
}
break;
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);
+ 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
- {
+ } else {
/* must select the first sock of the connection at the beginning */
- c->cur_idx= 0;
+ c->cur_idx = 0;
}
- c->sfd= c->tcpsfd[c->cur_idx];
- assert(c->sfd != 0);
- c->change_sfd= true;
+ c->sfd = c->tcpsfd[c->cur_idx];
+ assert(c->sfd);
+ c->change_sfd = true;
}
- if (c->change_sfd)
- {
- if (! ms_update_event(c, EV_WRITE | EV_PERSIST))
- {
+ 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.
*
* @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)
-{
+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;
+ char *buffer = c->wbuf;
- write_len= snprintf(buffer,
- c->wsize,
- " %u %d %d\r\n",
- 0,
- item->exp_time,
- item->value_size);
+ 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)
- {
+ 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 (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)
+ if ((ms_add_iov(c, "set ", 4))
+ || (ms_add_iov(c, (char *) &item->key_prefix, (int) KEY_PREFIX_SIZE))
|| (ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset],
- item->key_size - (int)KEY_PREFIX_SIZE) != 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)))
+ item->key_size - (int) KEY_PREFIX_SIZE)
+)
+ || (ms_add_iov(c, buffer, write_len))
+ || (ms_add_iov(c, &ms_setting.char_block[value_offset], item->value_size))
+ || (ms_add_iov(c, "\r\n", 2)) || (c->udp && (ms_build_udp_headers(c))))
{
return -1;
}
return EXIT_SUCCESS;
} /* ms_build_ascii_write_buf_set */
-
/**
* used to send set command to server
*
*
* @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);
+int ms_mcd_set(ms_conn_t *c, ms_task_item_t *item) {
+ assert(c);
- c->currcmd.cmd= CMD_SET;
- c->currcmd.isfinish= false;
- c->currcmd.retstat= MCD_FAILURE;
+ c->currcmd.cmd = CMD_SET;
+ c->currcmd.isfinish = false;
+ c->currcmd.retstat = MCD_FAILURE;
- if (ms_update_conn_sock_event(c) != 0)
- {
+ if (ms_update_conn_sock_event(c)) {
return -1;
}
- c->msgcurr= 0;
- c->msgused= 0;
- c->iovused= 0;
- if (ms_add_msghdr(c) != 0)
- {
+ c->msgcurr = 0;
+ c->msgused = 0;
+ c->iovused = 0;
+ if (ms_add_msghdr(c)) {
fprintf(stderr, "Out of memory preparing request.");
return -1;
}
/* binary protocol */
- if (c->protocol == binary_prot)
- {
- if (ms_build_bin_write_buf_set(c, item) != 0)
- {
+ if (c->protocol == binary_prot) {
+ if (ms_build_bin_write_buf_set(c, item)) {
return -1;
}
- }
- else
- {
- if (ms_build_ascii_write_buf_set(c, item) != 0)
- {
+ } else {
+ if (ms_build_ascii_write_buf_set(c, item)) {
return -1;
}
}
- atomic_add_size(&ms_stats.obj_bytes,
- item->key_size + item->value_size);
+ atomic_add_size(&ms_stats.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.
*
* @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)
+static int ms_build_ascii_write_buf_get(ms_conn_t *c, ms_task_item_t *item) {
+ if ((ms_add_iov(c, "get ", 4))
+ || (ms_add_iov(c, (char *) &item->key_prefix, (int) KEY_PREFIX_SIZE))
|| (ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset],
- item->key_size - (int)KEY_PREFIX_SIZE) != 0)
- || (ms_add_iov(c, "\r\n", 2) != 0)
- || (c->udp && (ms_build_udp_headers(c) != 0)))
+ item->key_size - (int) KEY_PREFIX_SIZE)
+)
+ || (ms_add_iov(c, "\r\n", 2)) || (c->udp && (ms_build_udp_headers(c))))
{
return -1;
}
return EXIT_SUCCESS;
} /* ms_build_ascii_write_buf_get */
-
/**
* used to send the get command to server
*
*
* @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);
+int ms_mcd_get(ms_conn_t *c, ms_task_item_t *item) {
+ assert(c);
- c->currcmd.cmd= CMD_GET;
- c->currcmd.isfinish= false;
- c->currcmd.retstat= MCD_FAILURE;
+ c->currcmd.cmd = CMD_GET;
+ c->currcmd.isfinish = false;
+ c->currcmd.retstat = MCD_FAILURE;
- if (ms_update_conn_sock_event(c) != 0)
- {
+ if (ms_update_conn_sock_event(c)) {
return -1;
}
- c->msgcurr= 0;
- c->msgused= 0;
- c->iovused= 0;
- if (ms_add_msghdr(c) != 0)
- {
+ c->msgcurr = 0;
+ c->msgused = 0;
+ c->iovused = 0;
+ if (ms_add_msghdr(c)) {
fprintf(stderr, "Out of memory preparing request.");
return -1;
}
/* binary protocol */
- if (c->protocol == binary_prot)
- {
- if (ms_build_bin_write_buf_get(c, item) != 0)
- {
+ if (c->protocol == binary_prot) {
+ if (ms_build_bin_write_buf_get(c, item)) {
return -1;
}
- }
- else
- {
- if (ms_build_ascii_write_buf_get(c, item) != 0)
- {
+ } else {
+ if (ms_build_ascii_write_buf_get(c, item)) {
return -1;
}
}
return EXIT_SUCCESS;
} /* ms_mcd_get */
-
/**
* for ASCII protocol, this function build the multi-get command
* string and send the command.
*
* @return int, if success, return EXIT_SUCCESS, else return -1
*/
-static int ms_build_ascii_write_buf_mlget(ms_conn_t *c)
-{
+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)
- {
+ if (ms_add_iov(c, "get", 3)) {
return -1;
}
- for (int i= 0; i < c->mlget_task.mlget_num; i++)
- {
- item= c->mlget_task.mlget_item[i].item;
- assert(item != NULL);
- if ((ms_add_iov(c, " ", 1) != 0)
- || (ms_add_iov(c, (char *)&item->key_prefix,
- (int)KEY_PREFIX_SIZE) != 0)
+ for (int i = 0; i < c->mlget_task.mlget_num; i++) {
+ item = c->mlget_task.mlget_item[i].item;
+ assert(item);
+ if ((ms_add_iov(c, " ", 1))
+ || (ms_add_iov(c, (char *) &item->key_prefix, (int) KEY_PREFIX_SIZE))
|| (ms_add_iov(c, &ms_setting.char_block[item->key_suffix_offset],
- item->key_size - (int)KEY_PREFIX_SIZE) != 0))
+ item->key_size - (int) KEY_PREFIX_SIZE)
+))
{
return -1;
}
}
- if ((ms_add_iov(c, "\r\n", 2) != 0)
- || (c->udp && (ms_build_udp_headers(c) != 0)))
- {
+ if ((ms_add_iov(c, "\r\n", 2)) || (c->udp && (ms_build_udp_headers(c)))) {
return -1;
}
return EXIT_SUCCESS;
} /* ms_build_ascii_write_buf_mlget */
-
/**
* used to send the multi-get command to server
*
*
* @return int, if success, return EXIT_SUCCESS, else return -1
*/
-int ms_mcd_mlget(ms_conn_t *c)
-{
+int ms_mcd_mlget(ms_conn_t *c) {
ms_task_item_t *item;
- assert(c != NULL);
+ assert(c);
assert(c->mlget_task.mlget_num >= 1);
- c->currcmd.cmd= CMD_GET;
- c->currcmd.isfinish= false;
- c->currcmd.retstat= MCD_FAILURE;
+ c->currcmd.cmd = CMD_GET;
+ c->currcmd.isfinish = false;
+ c->currcmd.retstat = MCD_FAILURE;
- if (ms_update_conn_sock_event(c) != 0)
- {
+ if (ms_update_conn_sock_event(c)) {
return -1;
}
- c->msgcurr= 0;
- c->msgused= 0;
- c->iovused= 0;
- if (ms_add_msghdr(c) != 0)
- {
+ c->msgcurr = 0;
+ c->msgused = 0;
+ c->iovused = 0;
+ if (ms_add_msghdr(c)) {
fprintf(stderr, "Out of memory preparing request.");
return -1;
}
/* binary protocol */
- if (c->protocol == binary_prot)
- {
- if (ms_build_bin_write_buf_mlget(c) != 0)
- {
+ if (c->protocol == binary_prot) {
+ if (ms_build_bin_write_buf_mlget(c)) {
return -1;
}
- }
- else
- {
- if (ms_build_ascii_write_buf_mlget(c) != 0)
- {
+ } else {
+ if (ms_build_ascii_write_buf_mlget(c)) {
return -1;
}
}
/* decrease operation time of each item */
- for (int i= 0; i < c->mlget_task.mlget_num; i++)
- {
- item= c->mlget_task.mlget_item[i].item;
+ 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;
+ (void) item;
return EXIT_SUCCESS;
} /* ms_mcd_mlget */
-
/**
* binary protocol support
*/
*
* @return int, if success, return EXIT_SUCCESS, else return -1
*/
-static int ms_bin_process_response(ms_conn_t *c)
-{
- const char *errstr= NULL;
+static int ms_bin_process_response(ms_conn_t *c) {
+ const char *errstr = NULL;
- assert(c != NULL);
+ assert(c);
- uint32_t bodylen= c->binary_header.response.bodylen;
- uint8_t opcode= c->binary_header.response.opcode;
- uint16_t status= c->binary_header.response.status;
+ 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;
+ if (bodylen > 0) {
+ c->rvbytes = (int32_t) bodylen;
+ c->readval = true;
return EXIT_FAILURE;
- }
- else
- {
- switch (status)
- {
+ } 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;
+ 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;
+ 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;
+ 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;
+ errstr = "Not found";
+ c->currcmd.retstat = MCD_NOTFOUND;
break;
case PROTOCOL_BINARY_RESPONSE_EINVAL:
- errstr= "Invalid arguments";
- c->currcmd.retstat= MCD_PROTOCOL_ERROR;
+ errstr = "Invalid arguments";
+ c->currcmd.retstat = MCD_PROTOCOL_ERROR;
break;
case PROTOCOL_BINARY_RESPONSE_KEY_EEXISTS:
- errstr= "Data exists for key.";
+ errstr = "Data exists for key.";
break;
case PROTOCOL_BINARY_RESPONSE_E2BIG:
- errstr= "Too large.";
- c->currcmd.retstat= MCD_SERVER_ERROR;
+ errstr = "Too large.";
+ c->currcmd.retstat = MCD_SERVER_ERROR;
break;
case PROTOCOL_BINARY_RESPONSE_NOT_STORED:
- errstr= "Not stored.";
- c->currcmd.retstat= MCD_NOTSTORED;
+ errstr = "Not stored.";
+ c->currcmd.retstat = MCD_NOTSTORED;
break;
default:
- errstr= "Unknown error";
- c->currcmd.retstat= MCD_UNKNOWN_READ_FAILURE;
+ errstr = "Unknown error";
+ c->currcmd.retstat = MCD_UNKNOWN_READ_FAILURE;
break;
} /* switch */
- if (errstr != NULL)
- {
+ if (errstr) {
fprintf(stderr, "%s\n", errstr);
}
}
return EXIT_SUCCESS;
} /* ms_bin_process_response */
-
/* build binary header and add the header to the buffer to send */
/**
* @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)
-{
+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);
+ assert(c);
- header= (protocol_binary_request_header *)c->wcurr;
+ 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.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.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;
+ 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 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);
+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);
+ item->key_size - (int) KEY_PREFIX_SIZE);
}
-
/**
* for binary protocol, this function build the set command
* and add the command to send buffer array.
*
* @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)
-{
+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);
+ 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;
+ 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.
*
* @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)
-{
+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_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.
*
* @return int, if success, return EXIT_SUCCESS, else return -1
*/
-static int ms_build_bin_write_buf_mlget(ms_conn_t *c)
-{
+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);
+ for (int i = 0; i < c->mlget_task.mlget_num; i++) {
+ item = c->mlget_task.mlget_item[i].item;
+ assert(item);
+
+ ms_add_bin_header(c, PROTOCOL_BINARY_CMD_GET, 0, (uint16_t) item->key_size,
+ (uint32_t) item->key_size);
ms_add_key_to_iov(c, item);
- c->wcurr+= sizeof(protocol_binary_request_get);
+ c->wcurr += sizeof(protocol_binary_request_get);
}
- c->wcurr= c->wbuf;
+ c->wcurr = c->wbuf;
return EXIT_SUCCESS;
} /* ms_build_bin_write_buf_mlget */
projects / m6w6 / libmemcached / blobdiff