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/*************************************************************************** |
/* SPDX-License-Identifier: GPL-3.0-or-later */ |
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user_list.c - description |
/* |
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------------------- |
* user_list |
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Copyright : (C) 2004-2025 by Leaflet |
* - data model and basic operations of (online) user list |
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Email : leaflet@leafok.com |
* |
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***************************************************************************/ |
* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com> |
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*/ |
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/*************************************************************************** |
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* * |
#ifdef HAVE_CONFIG_H |
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* This program is free software; you can redistribute it and/or modify * |
#include "config.h" |
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* it under the terms of the GNU General Public License as published by * |
#endif |
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* the Free Software Foundation; either version 3 of the License, or * |
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* (at your option) any later version. * |
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* * |
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***************************************************************************/ |
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#include "common.h" |
#include "common.h" |
| 14 |
#include "database.h" |
#include "database.h" |
| 15 |
#include "log.h" |
#include "log.h" |
| 16 |
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#include "trie_dict.h" |
| 17 |
#include "user_list.h" |
#include "user_list.h" |
| 18 |
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#include "user_stat.h" |
| 19 |
#include <errno.h> |
#include <errno.h> |
| 20 |
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#include <fcntl.h> |
| 21 |
#include <stdlib.h> |
#include <stdlib.h> |
| 22 |
#include <string.h> |
#include <string.h> |
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#include <time.h> |
#include <time.h> |
|
#include <sys/ipc.h> |
|
| 24 |
#include <sys/mman.h> |
#include <sys/mman.h> |
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#include <sys/param.h> |
#include <sys/param.h> |
| 26 |
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#include <sys/stat.h> |
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#ifdef HAVE_SYSTEM_V |
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#include <sys/sem.h> |
#include <sys/sem.h> |
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#include <sys/shm.h> |
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|
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#ifdef _SEM_SEMUN_UNDEFINED |
#ifdef _SEM_SEMUN_UNDEFINED |
| 32 |
union semun |
union semun |
| 33 |
{ |
{ |
| 34 |
int val; /* Value for SETVAL */ |
int val; /* Value for SETVAL */ |
| 35 |
struct semid_ds *buf; /* Buffer for IPC_STAT, IPC_SET */ |
struct semid_ds *buf; /* Buffer for IPC_STAT, IPC_SET */ |
| 36 |
unsigned short *array; /* Array for GETALL, SETALL */ |
unsigned short *array; /* Array for GETALL, SETALL */ |
| 37 |
struct seminfo *__buf; /* Buffer for IPC_INFO |
struct seminfo *__buf; /* Buffer for IPC_INFO |
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(Linux-specific) */ |
(Linux-specific) */ |
| 39 |
}; |
}; |
| 40 |
#endif // #ifdef _SEM_SEMUN_UNDEFINED |
#endif // #ifdef _SEM_SEMUN_UNDEFINED |
| 41 |
|
|
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#define USER_LIST_TRY_LOCK_WAIT_TIME 1 // second |
#else |
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#define USER_LIST_TRY_LOCK_TIMES 10 |
#include <semaphore.h> |
| 44 |
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#endif |
| 45 |
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|
| 46 |
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enum _user_list_constant_t |
| 47 |
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{ |
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USER_LIST_TRY_LOCK_WAIT_TIME = 1, // second |
| 49 |
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USER_LIST_TRY_LOCK_TIMES = 10, |
| 50 |
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USER_LIST_DEAD_LOCK_TIMEOUT = 15, // second |
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}; |
| 52 |
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|
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struct user_list_pool_t |
struct user_list_pool_t |
| 54 |
{ |
{ |
| 55 |
int shmid; |
size_t shm_size; |
| 56 |
int semid; |
#ifndef HAVE_SYSTEM_V |
| 57 |
USER_LIST user_list[2]; |
sem_t sem; |
| 58 |
USER_LIST *p_current; |
uint16_t read_lock_count; |
| 59 |
USER_LIST *p_new; |
uint16_t write_lock_count; |
| 60 |
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#else |
| 61 |
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int semid; |
| 62 |
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#endif |
| 63 |
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USER_LIST user_list[2]; |
| 64 |
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int user_list_index_current; |
| 65 |
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int user_list_index_new; |
| 66 |
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USER_ONLINE_LIST user_online_list[2]; |
| 67 |
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int user_online_list_index_current; |
| 68 |
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int user_online_list_index_new; |
| 69 |
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USER_STAT_MAP user_stat_map; |
| 70 |
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int user_login_count; |
| 71 |
}; |
}; |
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typedef struct user_list_pool_t USER_LIST_POOL; |
typedef struct user_list_pool_t USER_LIST_POOL; |
| 73 |
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|
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static char user_list_shm_name[FILE_NAME_LEN]; |
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static USER_LIST_POOL *p_user_list_pool = NULL; |
static USER_LIST_POOL *p_user_list_pool = NULL; |
| 76 |
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static TRIE_NODE *p_trie_action_dict = NULL; |
| 77 |
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|
| 78 |
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typedef struct user_action_map_t |
| 79 |
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{ |
| 80 |
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char name[BBS_current_action_max_len + 1]; |
| 81 |
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char title[BBS_current_action_max_len + 1]; |
| 82 |
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} USER_ACTION_MAP; |
| 83 |
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|
| 84 |
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const USER_ACTION_MAP user_action_map[] = |
| 85 |
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{ |
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{"ARTICLE_FAVOR", "浏览收藏"}, |
| 87 |
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{"BBS_NET", "站点穿梭"}, |
| 88 |
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{"CHICKEN", "电子小鸡"}, |
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{"EDIT_ARTICLE", "修改文章"}, |
| 90 |
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{"LOGIN", "进入大厅"}, |
| 91 |
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{"MENU", "菜单选择"}, |
| 92 |
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{"POST_ARTICLE", "撰写文章"}, |
| 93 |
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{"REPLY_ARTICLE", "回复文章"}, |
| 94 |
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{"TOP10_MENU", "十大热门"}, |
| 95 |
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{"USER_LIST", "查花名册"}, |
| 96 |
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{"USER_ONLINE", "环顾四周"}, |
| 97 |
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{"VIEW_ARTICLE", "阅读文章"}, |
| 98 |
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{"VIEW_FILE", "查看文档"}, |
| 99 |
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{"WWW", "Web浏览"}}; |
| 100 |
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|
| 101 |
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const int user_action_map_size = sizeof(user_action_map) / sizeof(USER_ACTION_MAP); |
| 102 |
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|
| 103 |
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static int user_list_try_rd_lock(int wait_sec); |
| 104 |
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static int user_list_try_rw_lock(int wait_sec); |
| 105 |
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static int user_list_rd_unlock(void); |
| 106 |
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static int user_list_rw_unlock(void); |
| 107 |
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static int user_list_rd_lock(void); |
| 108 |
|
static int user_list_rw_lock(void); |
| 109 |
|
#ifndef HAVE_SYSTEM_V |
| 110 |
|
static int user_list_reset_lock(void); |
| 111 |
|
#endif |
| 112 |
|
|
| 113 |
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static int user_list_load(MYSQL *db, USER_LIST *p_list); |
| 114 |
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static int user_online_list_load(MYSQL *db, USER_ONLINE_LIST *p_online_list); |
| 115 |
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static int user_login_count_load(MYSQL *db); |
| 116 |
|
|
| 117 |
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static int user_info_index_uid_comp(const void *ptr1, const void *ptr2) |
| 118 |
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{ |
| 119 |
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const USER_INFO_INDEX_UID *p1 = ptr1; |
| 120 |
|
const USER_INFO_INDEX_UID *p2 = ptr2; |
| 121 |
|
|
| 122 |
static int user_list_try_rd_lock(int semid, int wait_sec); |
if (p1->uid < p2->uid) |
| 123 |
static int user_list_try_rw_lock(int semid, int wait_sec); |
{ |
| 124 |
static int user_list_rd_unlock(int semid); |
return -1; |
| 125 |
static int user_list_rw_unlock(int semid); |
} |
| 126 |
static int user_list_rd_lock(int semid); |
else if (p1->uid > p2->uid) |
| 127 |
static int user_list_rw_lock(int semid); |
{ |
| 128 |
|
return 1; |
| 129 |
|
} |
| 130 |
|
else if (p1->id < p2->id) |
| 131 |
|
{ |
| 132 |
|
return -1; |
| 133 |
|
} |
| 134 |
|
else if (p1->id > p2->id) |
| 135 |
|
{ |
| 136 |
|
return 1; |
| 137 |
|
} |
| 138 |
|
return 0; |
| 139 |
|
} |
| 140 |
|
|
| 141 |
int user_list_load(MYSQL *db, USER_LIST *p_list) |
int user_list_load(MYSQL *db, USER_LIST *p_list) |
| 142 |
{ |
{ |
| 143 |
MYSQL_RES *rs = NULL; |
MYSQL_RES *rs = NULL; |
| 144 |
MYSQL_ROW row; |
MYSQL_ROW row; |
| 145 |
char sql[SQL_BUFFER_LEN]; |
char sql[SQL_BUFFER_LEN]; |
| 146 |
int ret = 0; |
int ret = 0; |
| 147 |
int i; |
int i; |
| 148 |
|
int j; |
| 149 |
if (db == NULL || p_list == NULL) |
int32_t last_uid; |
| 150 |
{ |
size_t intro_buf_offset; |
| 151 |
log_error("NULL pointer error\n"); |
size_t intro_len; |
| 152 |
return -1; |
|
| 153 |
} |
if (db == NULL || p_list == NULL) |
| 154 |
|
{ |
| 155 |
snprintf(sql, sizeof(sql), |
log_error("NULL pointer error\n"); |
| 156 |
"SELECT user_list.UID AS UID, username, nickname, gender, gender_pub, life, exp, " |
return -1; |
| 157 |
"UNIX_TIMESTAMP(signup_dt), UNIX_TIMESTAMP(last_login_dt), UNIX_TIMESTAMP(birthday) " |
} |
| 158 |
"FROM user_list INNER JOIN user_pubinfo ON user_list.UID = user_pubinfo.UID " |
|
| 159 |
"INNER JOIN user_reginfo ON user_list.UID = user_reginfo.UID " |
if (p_list->user_count > 0) |
| 160 |
"WHERE enable ORDER BY UID"); |
{ |
| 161 |
|
last_uid = p_list->users[p_list->user_count - 1].uid; |
| 162 |
if (mysql_query(db, sql) != 0) |
} |
| 163 |
{ |
else |
| 164 |
log_error("Query user info error: %s\n", mysql_error(db)); |
{ |
| 165 |
ret = -1; |
last_uid = -1; |
| 166 |
goto cleanup; |
} |
| 167 |
} |
|
| 168 |
|
snprintf(sql, sizeof(sql), |
| 169 |
if ((rs = mysql_use_result(db)) == NULL) |
"SELECT user_list.UID AS UID, username, nickname, gender, gender_pub, life, exp, visit_count, " |
| 170 |
{ |
"UNIX_TIMESTAMP(signup_dt), UNIX_TIMESTAMP(last_login_dt), UNIX_TIMESTAMP(last_logout_dt), " |
| 171 |
log_error("Get user info data failed\n"); |
"UNIX_TIMESTAMP(birthday), `introduction` " |
| 172 |
ret = -1; |
"FROM user_list INNER JOIN user_pubinfo ON user_list.UID = user_pubinfo.UID " |
| 173 |
goto cleanup; |
"INNER JOIN user_reginfo ON user_list.UID = user_reginfo.UID " |
| 174 |
} |
"WHERE enable ORDER BY username"); |
| 175 |
|
|
| 176 |
i = 0; |
if (mysql_query(db, sql) != 0) |
| 177 |
while ((row = mysql_fetch_row(rs))) |
{ |
| 178 |
{ |
log_error("Query user info error: %s\n", mysql_error(db)); |
| 179 |
p_list->users[i].uid = atoi(row[0]); |
ret = -1; |
| 180 |
strncpy(p_list->users[i].username, row[1], sizeof(p_list->users[i].username) - 1); |
goto cleanup; |
| 181 |
p_list->users[i].username[sizeof(p_list->users[i].username) - 1] = '\0'; |
} |
| 182 |
strncpy(p_list->users[i].nickname, row[2], sizeof(p_list->users[i].nickname) - 1); |
|
| 183 |
p_list->users[i].nickname[sizeof(p_list->users[i].nickname) - 1] = '\0'; |
if ((rs = mysql_use_result(db)) == NULL) |
| 184 |
p_list->users[i].gender = row[3][0]; |
{ |
| 185 |
p_list->users[i].gender_pub = (int8_t)(row[4] == NULL ? 0 : atoi(row[4])); |
log_error("Get user info data failed\n"); |
| 186 |
p_list->users[i].life = (row[5] == NULL ? 0 : atoi(row[5])); |
ret = -1; |
| 187 |
p_list->users[i].exp = (row[6] == NULL ? 0 : atoi(row[6])); |
goto cleanup; |
| 188 |
p_list->users[i].signup_dt = (row[7] == NULL ? 0 : atol(row[7])); |
} |
| 189 |
p_list->users[i].last_login_dt = (row[8] == NULL ? 0 : atol(row[8])); |
|
| 190 |
p_list->users[i].birthday = (row[9] == NULL ? 0 : atol(row[9])); |
intro_buf_offset = 0; |
| 191 |
|
i = 0; |
| 192 |
i++; |
while ((row = mysql_fetch_row(rs))) |
| 193 |
if (i >= BBS_max_user_count) |
{ |
| 194 |
{ |
// record |
| 195 |
log_error("Too many users, exceed limit %d\n", BBS_max_user_count); |
p_list->users[i].id = i; |
| 196 |
break; |
p_list->users[i].uid = atoi(row[0]); |
| 197 |
} |
strncpy(p_list->users[i].username, row[1], sizeof(p_list->users[i].username) - 1); |
| 198 |
} |
p_list->users[i].username[sizeof(p_list->users[i].username) - 1] = '\0'; |
| 199 |
mysql_free_result(rs); |
strncpy(p_list->users[i].nickname, row[2], sizeof(p_list->users[i].nickname) - 1); |
| 200 |
rs = NULL; |
p_list->users[i].nickname[sizeof(p_list->users[i].nickname) - 1] = '\0'; |
| 201 |
|
p_list->users[i].gender = row[3][0]; |
| 202 |
|
p_list->users[i].gender_pub = (int8_t)(row[4] == NULL ? 0 : atoi(row[4])); |
| 203 |
|
p_list->users[i].life = (row[5] == NULL ? 0 : atoi(row[5])); |
| 204 |
|
p_list->users[i].exp = (row[6] == NULL ? 0 : atoi(row[6])); |
| 205 |
|
p_list->users[i].visit_count = (row[7] == NULL ? 0 : atoi(row[7])); |
| 206 |
|
p_list->users[i].signup_dt = (row[8] == NULL ? 0 : atol(row[8])); |
| 207 |
|
p_list->users[i].last_login_dt = (row[9] == NULL ? 0 : atol(row[9])); |
| 208 |
|
p_list->users[i].last_logout_dt = (row[10] == NULL ? 0 : atol(row[10])); |
| 209 |
|
p_list->users[i].birthday = (row[11] == NULL ? 0 : atol(row[11])); |
| 210 |
|
intro_len = strlen((row[12] == NULL ? "" : row[12])); |
| 211 |
|
if (intro_len >= sizeof(p_list->user_intro_buf) - 1 - intro_buf_offset) |
| 212 |
|
{ |
| 213 |
|
log_error("OOM for user introduction: len=%d, i=%d\n", intro_len, i); |
| 214 |
|
break; |
| 215 |
|
} |
| 216 |
|
memcpy(p_list->user_intro_buf + intro_buf_offset, |
| 217 |
|
(row[12] == NULL ? "" : row[12]), |
| 218 |
|
intro_len + 1); |
| 219 |
|
p_list->users[i].intro = p_list->user_intro_buf + intro_buf_offset; |
| 220 |
|
intro_buf_offset += (intro_len + 1); |
| 221 |
|
|
| 222 |
|
i++; |
| 223 |
|
if (i >= BBS_max_user_count) |
| 224 |
|
{ |
| 225 |
|
log_error("Too many users, exceed limit %d\n", BBS_max_user_count); |
| 226 |
|
break; |
| 227 |
|
} |
| 228 |
|
} |
| 229 |
|
mysql_free_result(rs); |
| 230 |
|
rs = NULL; |
| 231 |
|
|
| 232 |
|
if (i != p_list->user_count || p_list->users[i - 1].uid != last_uid) // Count of users changed |
| 233 |
|
{ |
| 234 |
|
// Rebuild index |
| 235 |
|
for (j = 0; j < i; j++) |
| 236 |
|
{ |
| 237 |
|
p_list->index_uid[j].uid = p_list->users[j].uid; |
| 238 |
|
p_list->index_uid[j].id = j; |
| 239 |
|
} |
| 240 |
|
|
| 241 |
p_list->user_count = i; |
qsort(p_list->index_uid, (size_t)i, sizeof(USER_INFO_INDEX_UID), user_info_index_uid_comp); |
| 242 |
|
|
| 243 |
#ifdef _DEBUG |
log_debug("Rebuild index of %d users, last_uid=%d\n", i, p_list->users[i - 1].uid); |
| 244 |
log_error("Loaded %d users\n", p_list->user_count); |
} |
| 245 |
#endif |
|
| 246 |
|
p_list->user_count = i; |
| 247 |
|
|
| 248 |
|
log_debug("Loaded %d users\n", p_list->user_count); |
| 249 |
|
|
| 250 |
cleanup: |
cleanup: |
| 251 |
mysql_free_result(rs); |
mysql_free_result(rs); |
| 252 |
|
|
| 253 |
return ret; |
return ret; |
| 254 |
} |
} |
| 255 |
|
|
| 256 |
int user_list_pool_init(void) |
int user_online_list_load(MYSQL *db, USER_ONLINE_LIST *p_online_list) |
| 257 |
{ |
{ |
| 258 |
int shmid; |
MYSQL_RES *rs = NULL; |
| 259 |
int semid; |
MYSQL_ROW row; |
| 260 |
int proj_id; |
char sql[SQL_BUFFER_LEN]; |
| 261 |
key_t key; |
int ret = 0; |
| 262 |
size_t size; |
int i; |
| 263 |
void *p_shm; |
int j; |
| 264 |
union semun arg; |
int user_cnt; |
| 265 |
int i; |
int guest_cnt; |
| 266 |
|
|
| 267 |
if (p_user_list_pool != NULL) |
if (db == NULL || p_online_list == NULL) |
| 268 |
{ |
{ |
| 269 |
log_error("p_user_list_pool already initialized\n"); |
log_error("NULL pointer error\n"); |
| 270 |
return -1; |
return -1; |
| 271 |
} |
} |
| 272 |
|
|
| 273 |
// Allocate shared memory |
snprintf(sql, sizeof(sql), |
| 274 |
proj_id = (int)(time(NULL) % getpid()); |
"SELECT SID, UID, ip, current_action, UNIX_TIMESTAMP(login_tm), " |
| 275 |
key = ftok(VAR_USER_LIST_SHM, proj_id); |
"UNIX_TIMESTAMP(last_tm) FROM user_online " |
| 276 |
if (key == -1) |
"WHERE last_tm >= SUBDATE(NOW(), INTERVAL %d SECOND) " |
| 277 |
{ |
"ORDER BY last_tm DESC", |
| 278 |
log_error("ftok(%s %d) error (%d)\n", VAR_USER_LIST_SHM, proj_id, errno); |
BBS_user_off_line); |
| 279 |
return -2; |
|
| 280 |
} |
if (mysql_query(db, sql) != 0) |
| 281 |
|
{ |
| 282 |
size = sizeof(USER_LIST_POOL); |
log_error("Query user online error: %s\n", mysql_error(db)); |
| 283 |
shmid = shmget(key, size, IPC_CREAT | IPC_EXCL | 0600); |
ret = -1; |
| 284 |
if (shmid == -1) |
goto cleanup; |
| 285 |
{ |
} |
| 286 |
log_error("shmget(size = %d) error (%d)\n", size, errno); |
|
| 287 |
return -3; |
if ((rs = mysql_use_result(db)) == NULL) |
| 288 |
} |
{ |
| 289 |
p_shm = shmat(shmid, NULL, 0); |
log_error("Get user online data failed\n"); |
| 290 |
if (p_shm == (void *)-1) |
ret = -1; |
| 291 |
{ |
goto cleanup; |
| 292 |
log_error("shmat(shmid=%d) error (%d)\n", shmid, errno); |
} |
| 293 |
return -3; |
|
| 294 |
} |
i = 0; |
| 295 |
|
user_cnt = 0; |
| 296 |
p_user_list_pool = p_shm; |
guest_cnt = 0; |
| 297 |
p_user_list_pool->shmid = shmid; |
while ((row = mysql_fetch_row(rs))) |
| 298 |
|
{ |
| 299 |
// Allocate semaphore as user list pool lock |
if (atoi(row[1]) == 0) // guest |
| 300 |
size = 2; // r_sem and w_sem |
{ |
| 301 |
semid = semget(key, (int)size, IPC_CREAT | IPC_EXCL | 0600); |
guest_cnt++; |
| 302 |
if (semid == -1) |
continue; |
| 303 |
{ |
} |
| 304 |
log_error("semget(user_list_pool_sem, size = %d) error (%d)\n", size, errno); |
else |
| 305 |
return -3; |
{ |
| 306 |
} |
user_cnt++; |
| 307 |
|
} |
| 308 |
// Initialize sem value to 0 |
|
| 309 |
arg.val = 0; |
p_online_list->users[i].id = i; |
| 310 |
for (i = 0; i < size; i++) |
strncpy(p_online_list->users[i].session_id, row[0], sizeof(p_online_list->users[i].session_id) - 1); |
| 311 |
{ |
p_online_list->users[i].session_id[sizeof(p_online_list->users[i].session_id) - 1] = '\0'; |
| 312 |
if (semctl(semid, i, SETVAL, arg) == -1) |
|
| 313 |
{ |
if ((ret = query_user_info_by_uid(atoi(row[1]), &(p_online_list->users[i].user_info), NULL, 0)) <= 0) |
| 314 |
log_error("semctl(user_list_pool_sem, SETVAL) error (%d)\n", errno); |
{ |
| 315 |
return -3; |
log_error("query_user_info_by_uid(%d) error\n", atoi(row[1])); |
| 316 |
} |
continue; |
| 317 |
} |
} |
| 318 |
|
|
| 319 |
p_user_list_pool->semid = semid; |
strncpy(p_online_list->users[i].ip, row[2], sizeof(p_online_list->users[i].ip) - 1); |
| 320 |
|
p_online_list->users[i].ip[sizeof(p_online_list->users[i].ip) - 1] = '\0'; |
| 321 |
// Set user counts to 0 |
|
| 322 |
p_user_list_pool->user_list[0].user_count = 0; |
strncpy(p_online_list->users[i].current_action, row[3], sizeof(p_online_list->users[i].current_action) - 1); |
| 323 |
p_user_list_pool->user_list[1].user_count = 0; |
p_online_list->users[i].current_action[sizeof(p_online_list->users[i].current_action) - 1] = '\0'; |
| 324 |
|
p_online_list->users[i].current_action_title = NULL; |
| 325 |
|
if (p_online_list->users[i].current_action[0] == '\0') |
| 326 |
|
{ |
| 327 |
|
p_online_list->users[i].current_action_title = ""; |
| 328 |
|
} |
| 329 |
|
else if (trie_dict_get(p_trie_action_dict, p_online_list->users[i].current_action, (int64_t *)(&(p_online_list->users[i].current_action_title))) < 0) |
| 330 |
|
{ |
| 331 |
|
log_error("trie_dict_get(p_trie_action_dict, %s) error on session_id=%s\n", |
| 332 |
|
p_online_list->users[i].current_action, p_online_list->users[i].session_id); |
| 333 |
|
continue; |
| 334 |
|
} |
| 335 |
|
|
| 336 |
|
p_online_list->users[i].login_tm = (row[4] == NULL ? 0 : atol(row[4])); |
| 337 |
|
p_online_list->users[i].last_tm = (row[5] == NULL ? 0 : atol(row[5])); |
| 338 |
|
|
| 339 |
|
i++; |
| 340 |
|
if (i >= BBS_max_user_online_count) |
| 341 |
|
{ |
| 342 |
|
log_error("Too many online users, exceed limit %d\n", BBS_max_user_online_count); |
| 343 |
|
break; |
| 344 |
|
} |
| 345 |
|
} |
| 346 |
|
mysql_free_result(rs); |
| 347 |
|
rs = NULL; |
| 348 |
|
|
| 349 |
|
if (user_cnt > 0) |
| 350 |
|
{ |
| 351 |
|
// Rebuild index |
| 352 |
|
for (j = 0; j < user_cnt; j++) |
| 353 |
|
{ |
| 354 |
|
p_online_list->index_uid[j].uid = p_online_list->users[j].user_info.uid; |
| 355 |
|
p_online_list->index_uid[j].id = j; |
| 356 |
|
} |
| 357 |
|
|
| 358 |
|
qsort(p_online_list->index_uid, (size_t)user_cnt, sizeof(USER_INFO_INDEX_UID), user_info_index_uid_comp); |
| 359 |
|
} |
| 360 |
|
|
| 361 |
p_user_list_pool->p_current = &(p_user_list_pool->user_list[0]); |
p_online_list->user_count = user_cnt; |
| 362 |
p_user_list_pool->p_new = &(p_user_list_pool->user_list[1]); |
p_online_list->guest_count = guest_cnt; |
| 363 |
|
|
| 364 |
return 0; |
cleanup: |
| 365 |
|
mysql_free_result(rs); |
| 366 |
|
|
| 367 |
|
return ret; |
| 368 |
} |
} |
| 369 |
|
|
| 370 |
void user_list_pool_cleanup(void) |
int user_login_count_load(MYSQL *db) |
| 371 |
|
{ |
| 372 |
|
MYSQL_RES *rs = NULL; |
| 373 |
|
MYSQL_ROW row; |
| 374 |
|
char sql[SQL_BUFFER_LEN]; |
| 375 |
|
|
| 376 |
|
if (db == NULL) |
| 377 |
|
{ |
| 378 |
|
log_error("NULL pointer error\n"); |
| 379 |
|
return -1; |
| 380 |
|
} |
| 381 |
|
|
| 382 |
|
snprintf(sql, sizeof(sql), |
| 383 |
|
"SELECT ID FROM user_login_log ORDER BY ID DESC LIMIT 1"); |
| 384 |
|
if (mysql_query(db, sql) != 0) |
| 385 |
|
{ |
| 386 |
|
log_error("Query user_login_log error: %s\n", mysql_error(db)); |
| 387 |
|
return -2; |
| 388 |
|
} |
| 389 |
|
if ((rs = mysql_store_result(db)) == NULL) |
| 390 |
|
{ |
| 391 |
|
log_error("Get user_login_log data failed\n"); |
| 392 |
|
return -2; |
| 393 |
|
} |
| 394 |
|
if ((row = mysql_fetch_row(rs))) |
| 395 |
|
{ |
| 396 |
|
p_user_list_pool->user_login_count = atoi(row[0]); |
| 397 |
|
} |
| 398 |
|
mysql_free_result(rs); |
| 399 |
|
|
| 400 |
|
return 0; |
| 401 |
|
} |
| 402 |
|
|
| 403 |
|
int user_list_pool_init(const char *filename) |
| 404 |
{ |
{ |
| 405 |
int shmid; |
char filepath[FILE_PATH_LEN]; |
| 406 |
|
int fd; |
| 407 |
|
size_t size; |
| 408 |
|
void *p_shm; |
| 409 |
|
#ifdef HAVE_SYSTEM_V |
| 410 |
|
int proj_id; |
| 411 |
|
key_t key; |
| 412 |
|
int semid; |
| 413 |
|
union semun arg; |
| 414 |
|
#endif |
| 415 |
|
int i; |
| 416 |
|
|
| 417 |
|
if (p_user_list_pool != NULL || p_trie_action_dict != NULL) |
| 418 |
|
{ |
| 419 |
|
log_error("p_user_list_pool already initialized\n"); |
| 420 |
|
return -1; |
| 421 |
|
} |
| 422 |
|
|
| 423 |
|
p_trie_action_dict = trie_dict_create(); |
| 424 |
|
if (p_trie_action_dict == NULL) |
| 425 |
|
{ |
| 426 |
|
log_error("trie_dict_create() error\n"); |
| 427 |
|
return -1; |
| 428 |
|
} |
| 429 |
|
|
| 430 |
|
for (i = 0; i < user_action_map_size; i++) |
| 431 |
|
{ |
| 432 |
|
if (trie_dict_set(p_trie_action_dict, user_action_map[i].name, (int64_t)(user_action_map[i].title)) < 0) |
| 433 |
|
{ |
| 434 |
|
log_error("trie_dict_set(p_trie_action_dict, %s) error\n", user_action_map[i].name); |
| 435 |
|
} |
| 436 |
|
} |
| 437 |
|
|
| 438 |
|
// Allocate shared memory |
| 439 |
|
size = sizeof(USER_LIST_POOL); |
| 440 |
|
|
| 441 |
|
strncpy(filepath, filename, sizeof(filepath) - 1); |
| 442 |
|
filepath[sizeof(filepath) - 1] = '\0'; |
| 443 |
|
snprintf(user_list_shm_name, sizeof(user_list_shm_name), "/USER_LIST_SHM_%s", basename(filepath)); |
| 444 |
|
|
| 445 |
|
if (shm_unlink(user_list_shm_name) == -1 && errno != ENOENT) |
| 446 |
|
{ |
| 447 |
|
log_error("shm_unlink(%s) error (%d)\n", user_list_shm_name, errno); |
| 448 |
|
return -2; |
| 449 |
|
} |
| 450 |
|
|
| 451 |
|
if ((fd = shm_open(user_list_shm_name, O_CREAT | O_EXCL | O_RDWR, 0600)) == -1) |
| 452 |
|
{ |
| 453 |
|
log_error("shm_open(%s) error (%d)\n", user_list_shm_name, errno); |
| 454 |
|
return -2; |
| 455 |
|
} |
| 456 |
|
if (ftruncate(fd, (off_t)size) == -1) |
| 457 |
|
{ |
| 458 |
|
log_error("ftruncate(size=%d) error (%d)\n", size, errno); |
| 459 |
|
close(fd); |
| 460 |
|
return -2; |
| 461 |
|
} |
| 462 |
|
|
| 463 |
|
p_shm = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0L); |
| 464 |
|
if (p_shm == MAP_FAILED) |
| 465 |
|
{ |
| 466 |
|
log_error("mmap() error (%d)\n", errno); |
| 467 |
|
close(fd); |
| 468 |
|
return -2; |
| 469 |
|
} |
| 470 |
|
|
| 471 |
|
if (close(fd) < 0) |
| 472 |
|
{ |
| 473 |
|
log_error("close(fd) error (%d)\n", errno); |
| 474 |
|
return -1; |
| 475 |
|
} |
| 476 |
|
|
| 477 |
|
p_user_list_pool = p_shm; |
| 478 |
|
p_user_list_pool->shm_size = size; |
| 479 |
|
|
| 480 |
|
// Allocate semaphore as user list pool lock |
| 481 |
|
#ifndef HAVE_SYSTEM_V |
| 482 |
|
if (sem_init(&(p_user_list_pool->sem), 1, 1) == -1) |
| 483 |
|
{ |
| 484 |
|
log_error("sem_init() error (%d)\n", errno); |
| 485 |
|
return -3; |
| 486 |
|
} |
| 487 |
|
|
| 488 |
|
p_user_list_pool->read_lock_count = 0; |
| 489 |
|
p_user_list_pool->write_lock_count = 0; |
| 490 |
|
#else |
| 491 |
|
proj_id = (int)(time(NULL) % getpid()); |
| 492 |
|
key = ftok(filename, proj_id); |
| 493 |
|
if (key == -1) |
| 494 |
|
{ |
| 495 |
|
log_error("ftok(%s %d) error (%d)\n", filename, proj_id, errno); |
| 496 |
|
return -2; |
| 497 |
|
} |
| 498 |
|
|
| 499 |
|
size = 2; // r_sem and w_sem |
| 500 |
|
semid = semget(key, (int)size, IPC_CREAT | IPC_EXCL | 0600); |
| 501 |
|
if (semid == -1) |
| 502 |
|
{ |
| 503 |
|
log_error("semget(user_list_pool_sem, size = %d) error (%d)\n", size, errno); |
| 504 |
|
return -3; |
| 505 |
|
} |
| 506 |
|
|
| 507 |
|
// Initialize sem value to 0 |
| 508 |
|
arg.val = 0; |
| 509 |
|
for (i = 0; i < size; i++) |
| 510 |
|
{ |
| 511 |
|
if (semctl(semid, i, SETVAL, arg) == -1) |
| 512 |
|
{ |
| 513 |
|
log_error("semctl(user_list_pool_sem, SETVAL) error (%d)\n", errno); |
| 514 |
|
return -3; |
| 515 |
|
} |
| 516 |
|
} |
| 517 |
|
|
| 518 |
|
p_user_list_pool->semid = semid; |
| 519 |
|
#endif |
| 520 |
|
|
| 521 |
|
// Set user counts to 0 |
| 522 |
|
p_user_list_pool->user_list[0].user_count = 0; |
| 523 |
|
p_user_list_pool->user_list[1].user_count = 0; |
| 524 |
|
|
| 525 |
|
p_user_list_pool->user_list_index_current = 0; |
| 526 |
|
p_user_list_pool->user_list_index_new = 1; |
| 527 |
|
|
| 528 |
|
p_user_list_pool->user_online_list_index_current = 0; |
| 529 |
|
p_user_list_pool->user_online_list_index_new = 1; |
| 530 |
|
|
| 531 |
if (p_user_list_pool == NULL) |
user_stat_map_init(&(p_user_list_pool->user_stat_map)); |
|
{ |
|
|
return; |
|
|
} |
|
|
|
|
|
shmid = p_user_list_pool->shmid; |
|
|
|
|
|
if (semctl(p_user_list_pool->semid, 0, IPC_RMID) == -1) |
|
|
{ |
|
|
log_error("semctl(semid = %d, IPC_RMID) error (%d)\n", p_user_list_pool->semid, errno); |
|
|
} |
|
|
|
|
|
if (shmdt(p_user_list_pool) == -1) |
|
|
{ |
|
|
log_error("shmdt(shmid = %d) error (%d)\n", shmid, errno); |
|
|
} |
|
|
|
|
|
if (shmctl(shmid, IPC_RMID, NULL) == -1) |
|
|
{ |
|
|
log_error("shmctl(shmid = %d, IPC_RMID) error (%d)\n", shmid, errno); |
|
|
} |
|
| 532 |
|
|
| 533 |
p_user_list_pool = NULL; |
return 0; |
| 534 |
} |
} |
| 535 |
|
|
| 536 |
int set_user_list_pool_shm_readonly(void) |
void user_list_pool_cleanup(void) |
| 537 |
{ |
{ |
| 538 |
int shmid; |
if (p_user_list_pool == NULL) |
| 539 |
void *p_shm; |
{ |
| 540 |
|
return; |
| 541 |
|
} |
| 542 |
|
|
| 543 |
|
#ifdef HAVE_SYSTEM_V |
| 544 |
|
if (semctl(p_user_list_pool->semid, 0, IPC_RMID) == -1) |
| 545 |
|
{ |
| 546 |
|
log_error("semctl(semid = %d, IPC_RMID) error (%d)\n", p_user_list_pool->semid, errno); |
| 547 |
|
} |
| 548 |
|
#else |
| 549 |
|
if (sem_destroy(&(p_user_list_pool->sem)) == -1) |
| 550 |
|
{ |
| 551 |
|
log_error("sem_destroy() error (%d)\n", errno); |
| 552 |
|
} |
| 553 |
|
#endif |
| 554 |
|
|
| 555 |
|
detach_user_list_pool_shm(); |
| 556 |
|
|
| 557 |
|
if (shm_unlink(user_list_shm_name) == -1 && errno != ENOENT) |
| 558 |
|
{ |
| 559 |
|
log_error("shm_unlink(%s) error (%d)\n", user_list_shm_name, errno); |
| 560 |
|
} |
| 561 |
|
|
| 562 |
|
user_list_shm_name[0] = '\0'; |
| 563 |
|
|
| 564 |
if (p_user_list_pool == NULL) |
if (p_trie_action_dict != NULL) |
| 565 |
{ |
{ |
| 566 |
log_error("p_user_list_pool not initialized\n"); |
trie_dict_destroy(p_trie_action_dict); |
|
return -1; |
|
|
} |
|
|
|
|
|
shmid = p_user_list_pool->shmid; |
|
|
|
|
|
// Remap shared memory in read-only mode |
|
|
p_shm = shmat(shmid, p_user_list_pool, SHM_RDONLY | SHM_REMAP); |
|
|
if (p_shm == (void *)-1) |
|
|
{ |
|
|
log_error("shmat(user_list_pool shmid = %d) error (%d)\n", shmid, errno); |
|
|
return -3; |
|
|
} |
|
| 567 |
|
|
| 568 |
p_user_list_pool = p_shm; |
p_trie_action_dict = NULL; |
| 569 |
|
} |
| 570 |
|
} |
| 571 |
|
|
| 572 |
|
int set_user_list_pool_shm_readonly(void) |
| 573 |
|
{ |
| 574 |
|
if (p_user_list_pool != NULL && mprotect(p_user_list_pool, p_user_list_pool->shm_size, PROT_READ) < 0) |
| 575 |
|
{ |
| 576 |
|
log_error("mprotect() error (%d)\n", errno); |
| 577 |
|
return -1; |
| 578 |
|
} |
| 579 |
|
|
| 580 |
return 0; |
return 0; |
| 581 |
} |
} |
| 582 |
|
|
| 583 |
int detach_user_list_pool_shm(void) |
int detach_user_list_pool_shm(void) |
| 584 |
{ |
{ |
| 585 |
if (p_user_list_pool != NULL && shmdt(p_user_list_pool) == -1) |
if (p_user_list_pool != NULL && munmap(p_user_list_pool, p_user_list_pool->shm_size) < 0) |
| 586 |
{ |
{ |
| 587 |
log_error("shmdt(user_list_pool) error (%d)\n", errno); |
log_error("munmap() error (%d)\n", errno); |
| 588 |
return -1; |
return -1; |
| 589 |
} |
} |
| 590 |
|
|
| 591 |
p_user_list_pool = NULL; |
p_user_list_pool = NULL; |
| 592 |
|
|
| 593 |
return 0; |
return 0; |
| 594 |
} |
} |
| 595 |
|
|
| 596 |
int user_list_pool_reload(void) |
int user_list_pool_reload(int online_user) |
| 597 |
{ |
{ |
| 598 |
MYSQL *db = NULL; |
MYSQL *db = NULL; |
| 599 |
USER_LIST *p_tmp; |
int tmp; |
| 600 |
|
int ret = 0; |
| 601 |
|
|
| 602 |
|
if (p_user_list_pool == NULL) |
| 603 |
|
{ |
| 604 |
|
log_error("p_user_list_pool not initialized\n"); |
| 605 |
|
return -1; |
| 606 |
|
} |
| 607 |
|
|
| 608 |
|
db = db_open(); |
| 609 |
|
if (db == NULL) |
| 610 |
|
{ |
| 611 |
|
log_error("db_open() error: %s\n", mysql_error(db)); |
| 612 |
|
return -1; |
| 613 |
|
} |
| 614 |
|
|
| 615 |
|
if (online_user) |
| 616 |
|
{ |
| 617 |
|
if (user_online_list_load(db, &(p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_new])) < 0) |
| 618 |
|
{ |
| 619 |
|
log_error("user_online_list_load() error\n"); |
| 620 |
|
ret = -2; |
| 621 |
|
goto cleanup; |
| 622 |
|
} |
| 623 |
|
|
| 624 |
|
if (user_login_count_load(db) < 0) |
| 625 |
|
{ |
| 626 |
|
log_error("user_login_count_load() error\n"); |
| 627 |
|
ret = -2; |
| 628 |
|
goto cleanup; |
| 629 |
|
} |
| 630 |
|
} |
| 631 |
|
else |
| 632 |
|
{ |
| 633 |
|
if (user_list_load(db, &(p_user_list_pool->user_list[p_user_list_pool->user_list_index_new])) < 0) |
| 634 |
|
{ |
| 635 |
|
log_error("user_list_load() error\n"); |
| 636 |
|
ret = -2; |
| 637 |
|
goto cleanup; |
| 638 |
|
} |
| 639 |
|
} |
| 640 |
|
|
| 641 |
|
mysql_close(db); |
| 642 |
|
db = NULL; |
| 643 |
|
|
| 644 |
|
if (user_list_rw_lock() < 0) |
| 645 |
|
{ |
| 646 |
|
log_error("user_list_rw_lock() error\n"); |
| 647 |
|
ret = -3; |
| 648 |
|
goto cleanup; |
| 649 |
|
} |
| 650 |
|
|
| 651 |
|
if (online_user) |
| 652 |
|
{ |
| 653 |
|
// Swap p_online_current and p_online_new |
| 654 |
|
tmp = p_user_list_pool->user_online_list_index_current; |
| 655 |
|
p_user_list_pool->user_online_list_index_current = p_user_list_pool->user_online_list_index_new; |
| 656 |
|
p_user_list_pool->user_online_list_index_new = tmp; |
| 657 |
|
} |
| 658 |
|
else |
| 659 |
|
{ |
| 660 |
|
// Swap index_current and index_new |
| 661 |
|
tmp = p_user_list_pool->user_list_index_current; |
| 662 |
|
p_user_list_pool->user_list_index_current = p_user_list_pool->user_list_index_new; |
| 663 |
|
p_user_list_pool->user_list_index_new = tmp; |
| 664 |
|
} |
| 665 |
|
|
| 666 |
|
if (user_list_rw_unlock() < 0) |
| 667 |
|
{ |
| 668 |
|
log_error("user_list_rw_unlock() error\n"); |
| 669 |
|
ret = -3; |
| 670 |
|
goto cleanup; |
| 671 |
|
} |
| 672 |
|
|
| 673 |
if (p_user_list_pool == NULL) |
cleanup: |
| 674 |
{ |
mysql_close(db); |
|
log_error("p_user_list_pool not initialized\n"); |
|
|
return -1; |
|
|
} |
|
| 675 |
|
|
| 676 |
db = db_open(); |
return ret; |
| 677 |
if (db == NULL) |
} |
|
{ |
|
|
log_error("db_open() error: %s\n", mysql_error(db)); |
|
|
return -1; |
|
|
} |
|
| 678 |
|
|
| 679 |
if (user_list_load(db, p_user_list_pool->p_new) < 0) |
int user_list_try_rd_lock(int wait_sec) |
| 680 |
{ |
{ |
| 681 |
log_error("user_list_rw_lock() error\n"); |
#ifdef HAVE_SYSTEM_V |
| 682 |
return -2; |
struct sembuf sops[2]; |
| 683 |
} |
#endif |
| 684 |
|
struct timespec timeout; |
| 685 |
|
int ret = 0; |
| 686 |
|
|
| 687 |
mysql_close(db); |
if (p_user_list_pool == NULL) |
| 688 |
|
{ |
| 689 |
|
log_error("p_user_list_pool not initialized\n"); |
| 690 |
|
return -1; |
| 691 |
|
} |
| 692 |
|
|
| 693 |
|
timeout.tv_sec = wait_sec; |
| 694 |
|
timeout.tv_nsec = 0; |
| 695 |
|
|
| 696 |
|
#ifdef HAVE_SYSTEM_V |
| 697 |
|
sops[0].sem_num = 1; // w_sem |
| 698 |
|
sops[0].sem_op = 0; // wait until unlocked |
| 699 |
|
sops[0].sem_flg = 0; |
| 700 |
|
|
| 701 |
|
sops[1].sem_num = 0; // r_sem |
| 702 |
|
sops[1].sem_op = 1; // lock |
| 703 |
|
sops[1].sem_flg = SEM_UNDO; // undo on terminate |
| 704 |
|
|
| 705 |
|
ret = semtimedop(p_user_list_pool->semid, sops, 2, &timeout); |
| 706 |
|
if (ret == -1 && errno != EAGAIN && errno != EINTR) |
| 707 |
|
{ |
| 708 |
|
log_error("semop(lock read) error %d\n", errno); |
| 709 |
|
} |
| 710 |
|
#else |
| 711 |
|
if (sem_timedwait(&(p_user_list_pool->sem), &timeout) == -1) |
| 712 |
|
{ |
| 713 |
|
if (errno != ETIMEDOUT && errno != EAGAIN && errno != EINTR) |
| 714 |
|
{ |
| 715 |
|
log_error("sem_timedwait() error %d\n", errno); |
| 716 |
|
} |
| 717 |
|
return -1; |
| 718 |
|
} |
| 719 |
|
|
| 720 |
|
if (p_user_list_pool->write_lock_count == 0) |
| 721 |
|
{ |
| 722 |
|
p_user_list_pool->read_lock_count++; |
| 723 |
|
} |
| 724 |
|
else |
| 725 |
|
{ |
| 726 |
|
errno = EAGAIN; |
| 727 |
|
ret = -1; |
| 728 |
|
} |
| 729 |
|
|
| 730 |
|
if (sem_post(&(p_user_list_pool->sem)) == -1) |
| 731 |
|
{ |
| 732 |
|
log_error("sem_post() error %d\n", errno); |
| 733 |
|
return -1; |
| 734 |
|
} |
| 735 |
|
#endif |
| 736 |
|
|
| 737 |
if (user_list_rw_lock(p_user_list_pool->semid) < 0) |
return ret; |
| 738 |
{ |
} |
|
log_error("user_list_rw_lock() error\n"); |
|
|
return -3; |
|
|
} |
|
| 739 |
|
|
| 740 |
// Swap p_current and p_new |
int user_list_try_rw_lock(int wait_sec) |
| 741 |
p_tmp = p_user_list_pool->p_current; |
{ |
| 742 |
p_user_list_pool->p_current = p_user_list_pool->p_new; |
#ifdef HAVE_SYSTEM_V |
| 743 |
p_user_list_pool->p_new = p_tmp; |
struct sembuf sops[3]; |
| 744 |
|
#endif |
| 745 |
|
struct timespec timeout; |
| 746 |
|
int ret = 0; |
| 747 |
|
|
| 748 |
if (user_list_rw_unlock(p_user_list_pool->semid) < 0) |
if (p_user_list_pool == NULL) |
| 749 |
{ |
{ |
| 750 |
log_error("user_list_rw_unlock() error\n"); |
log_error("p_user_list_pool not initialized\n"); |
| 751 |
return -3; |
return -1; |
| 752 |
} |
} |
| 753 |
|
|
| 754 |
|
timeout.tv_sec = wait_sec; |
| 755 |
|
timeout.tv_nsec = 0; |
| 756 |
|
|
| 757 |
|
#ifdef HAVE_SYSTEM_V |
| 758 |
|
sops[0].sem_num = 1; // w_sem |
| 759 |
|
sops[0].sem_op = 0; // wait until unlocked |
| 760 |
|
sops[0].sem_flg = 0; |
| 761 |
|
|
| 762 |
|
sops[1].sem_num = 1; // w_sem |
| 763 |
|
sops[1].sem_op = 1; // lock |
| 764 |
|
sops[1].sem_flg = SEM_UNDO; // undo on terminate |
| 765 |
|
|
| 766 |
|
sops[2].sem_num = 0; // r_sem |
| 767 |
|
sops[2].sem_op = 0; // wait until unlocked |
| 768 |
|
sops[2].sem_flg = 0; |
| 769 |
|
|
| 770 |
|
ret = semtimedop(p_user_list_pool->semid, sops, 3, &timeout); |
| 771 |
|
if (ret == -1 && errno != EAGAIN && errno != EINTR) |
| 772 |
|
{ |
| 773 |
|
log_error("semop(lock write) error %d\n", errno); |
| 774 |
|
} |
| 775 |
|
#else |
| 776 |
|
if (sem_timedwait(&(p_user_list_pool->sem), &timeout) == -1) |
| 777 |
|
{ |
| 778 |
|
if (errno != ETIMEDOUT && errno != EAGAIN && errno != EINTR) |
| 779 |
|
{ |
| 780 |
|
log_error("sem_timedwait() error %d\n", errno); |
| 781 |
|
} |
| 782 |
|
return -1; |
| 783 |
|
} |
| 784 |
|
|
| 785 |
|
if (p_user_list_pool->read_lock_count == 0 && p_user_list_pool->write_lock_count == 0) |
| 786 |
|
{ |
| 787 |
|
p_user_list_pool->write_lock_count++; |
| 788 |
|
} |
| 789 |
|
else |
| 790 |
|
{ |
| 791 |
|
errno = EAGAIN; |
| 792 |
|
ret = -1; |
| 793 |
|
} |
| 794 |
|
|
| 795 |
|
if (sem_post(&(p_user_list_pool->sem)) == -1) |
| 796 |
|
{ |
| 797 |
|
log_error("sem_post() error %d\n", errno); |
| 798 |
|
return -1; |
| 799 |
|
} |
| 800 |
|
#endif |
| 801 |
|
|
| 802 |
return 0; |
return ret; |
| 803 |
} |
} |
| 804 |
|
|
| 805 |
int user_list_try_rd_lock(int semid, int wait_sec) |
int user_list_rd_unlock(void) |
| 806 |
{ |
{ |
| 807 |
struct sembuf sops[2]; |
#ifdef HAVE_SYSTEM_V |
| 808 |
struct timespec timeout; |
struct sembuf sops[2]; |
| 809 |
int ret; |
#endif |
| 810 |
|
int ret = 0; |
| 811 |
|
|
| 812 |
sops[0].sem_num = 1; // w_sem |
if (p_user_list_pool == NULL) |
| 813 |
sops[0].sem_op = 0; // wait until unlocked |
{ |
| 814 |
sops[0].sem_flg = 0; |
log_error("p_user_list_pool not initialized\n"); |
| 815 |
|
return -1; |
| 816 |
|
} |
| 817 |
|
|
| 818 |
|
#ifdef HAVE_SYSTEM_V |
| 819 |
|
sops[0].sem_num = 0; // r_sem |
| 820 |
|
sops[0].sem_op = -1; // unlock |
| 821 |
|
sops[0].sem_flg = IPC_NOWAIT | SEM_UNDO; // no wait |
| 822 |
|
|
| 823 |
|
ret = semop(p_user_list_pool->semid, sops, 1); |
| 824 |
|
if (ret == -1 && errno != EAGAIN && errno != EINTR) |
| 825 |
|
{ |
| 826 |
|
log_error("semop(unlock read) error %d\n", errno); |
| 827 |
|
} |
| 828 |
|
#else |
| 829 |
|
if (sem_wait(&(p_user_list_pool->sem)) == -1) |
| 830 |
|
{ |
| 831 |
|
if (errno != ETIMEDOUT && errno != EAGAIN && errno != EINTR) |
| 832 |
|
{ |
| 833 |
|
log_error("sem_wait() error %d\n", errno); |
| 834 |
|
} |
| 835 |
|
return -1; |
| 836 |
|
} |
| 837 |
|
|
| 838 |
|
if (p_user_list_pool->read_lock_count > 0) |
| 839 |
|
{ |
| 840 |
|
p_user_list_pool->read_lock_count--; |
| 841 |
|
} |
| 842 |
|
else |
| 843 |
|
{ |
| 844 |
|
log_error("read_lock_count already 0\n"); |
| 845 |
|
} |
| 846 |
|
|
| 847 |
|
if (sem_post(&(p_user_list_pool->sem)) == -1) |
| 848 |
|
{ |
| 849 |
|
log_error("sem_post() error %d\n", errno); |
| 850 |
|
return -1; |
| 851 |
|
} |
| 852 |
|
#endif |
| 853 |
|
|
| 854 |
sops[1].sem_num = 0; // r_sem |
return ret; |
| 855 |
sops[1].sem_op = 1; // lock |
} |
|
sops[1].sem_flg = SEM_UNDO; // undo on terminate |
|
| 856 |
|
|
| 857 |
timeout.tv_sec = wait_sec; |
int user_list_rw_unlock(void) |
| 858 |
timeout.tv_nsec = 0; |
{ |
| 859 |
|
#ifdef HAVE_SYSTEM_V |
| 860 |
|
struct sembuf sops[1]; |
| 861 |
|
#endif |
| 862 |
|
int ret = 0; |
| 863 |
|
|
| 864 |
ret = semtimedop(semid, sops, 2, &timeout); |
if (p_user_list_pool == NULL) |
| 865 |
if (ret == -1 && errno != EAGAIN && errno != EINTR) |
{ |
| 866 |
{ |
log_error("p_user_list_pool not initialized\n"); |
| 867 |
log_error("semtimedop(lock read) error %d\n", errno); |
return -1; |
| 868 |
} |
} |
| 869 |
|
|
| 870 |
|
#ifdef HAVE_SYSTEM_V |
| 871 |
|
sops[0].sem_num = 1; // w_sem |
| 872 |
|
sops[0].sem_op = -1; // unlock |
| 873 |
|
sops[0].sem_flg = IPC_NOWAIT | SEM_UNDO; // no wait |
| 874 |
|
|
| 875 |
|
ret = semop(p_user_list_pool->semid, sops, 1); |
| 876 |
|
if (ret == -1 && errno != EAGAIN && errno != EINTR) |
| 877 |
|
{ |
| 878 |
|
log_error("semop(unlock write) error %d\n", errno); |
| 879 |
|
} |
| 880 |
|
#else |
| 881 |
|
if (sem_wait(&(p_user_list_pool->sem)) == -1) |
| 882 |
|
{ |
| 883 |
|
if (errno != ETIMEDOUT && errno != EAGAIN && errno != EINTR) |
| 884 |
|
{ |
| 885 |
|
log_error("sem_wait() error %d\n", errno); |
| 886 |
|
} |
| 887 |
|
return -1; |
| 888 |
|
} |
| 889 |
|
|
| 890 |
|
if (p_user_list_pool->write_lock_count > 0) |
| 891 |
|
{ |
| 892 |
|
p_user_list_pool->write_lock_count--; |
| 893 |
|
} |
| 894 |
|
else |
| 895 |
|
{ |
| 896 |
|
log_error("write_lock_count already 0\n"); |
| 897 |
|
} |
| 898 |
|
|
| 899 |
|
if (sem_post(&(p_user_list_pool->sem)) == -1) |
| 900 |
|
{ |
| 901 |
|
log_error("sem_post() error %d\n", errno); |
| 902 |
|
return -1; |
| 903 |
|
} |
| 904 |
|
#endif |
| 905 |
|
|
| 906 |
return ret; |
return ret; |
| 907 |
} |
} |
| 908 |
|
|
| 909 |
int user_list_try_rw_lock(int semid, int wait_sec) |
int user_list_rd_lock(void) |
| 910 |
{ |
{ |
| 911 |
struct sembuf sops[3]; |
int timer = 0; |
| 912 |
struct timespec timeout; |
int ret = -1; |
| 913 |
int ret; |
time_t tm_first_failure = 0; |
| 914 |
|
|
| 915 |
|
if (p_user_list_pool == NULL) |
| 916 |
|
{ |
| 917 |
|
log_error("p_user_list_pool not initialized\n"); |
| 918 |
|
return -1; |
| 919 |
|
} |
| 920 |
|
|
| 921 |
|
while (!SYS_server_exit) |
| 922 |
|
{ |
| 923 |
|
ret = user_list_try_rd_lock(USER_LIST_TRY_LOCK_WAIT_TIME); |
| 924 |
|
if (ret == 0) // success |
| 925 |
|
{ |
| 926 |
|
break; |
| 927 |
|
} |
| 928 |
|
else if (errno == EAGAIN || errno == EINTR) // retry |
| 929 |
|
{ |
| 930 |
|
timer++; |
| 931 |
|
if (timer % USER_LIST_TRY_LOCK_TIMES == 0) |
| 932 |
|
{ |
| 933 |
|
log_error("user_list_try_rd_lock() tried %d times\n", timer); |
| 934 |
|
|
| 935 |
|
if (time(NULL) - tm_first_failure >= USER_LIST_DEAD_LOCK_TIMEOUT) |
| 936 |
|
{ |
| 937 |
|
log_error("Unable to acquire rw_lock for %d seconds\n", time(NULL) - tm_first_failure); |
| 938 |
|
#ifndef HAVE_SYSTEM_V |
| 939 |
|
user_list_reset_lock(); |
| 940 |
|
log_error("Reset POSIX semaphore to resolve dead lock\n"); |
| 941 |
|
#endif |
| 942 |
|
break; |
| 943 |
|
} |
| 944 |
|
} |
| 945 |
|
usleep(100 * 1000); // 0.1 second |
| 946 |
|
} |
| 947 |
|
else // failed |
| 948 |
|
{ |
| 949 |
|
log_error("user_list_try_rd_lock() failed\n"); |
| 950 |
|
break; |
| 951 |
|
} |
| 952 |
|
} |
| 953 |
|
|
| 954 |
|
return ret; |
| 955 |
|
} |
| 956 |
|
|
| 957 |
|
int user_list_rw_lock(void) |
| 958 |
|
{ |
| 959 |
|
int timer = 0; |
| 960 |
|
int ret = -1; |
| 961 |
|
time_t tm_first_failure = 0; |
| 962 |
|
|
| 963 |
|
if (p_user_list_pool == NULL) |
| 964 |
|
{ |
| 965 |
|
log_error("p_user_list_pool not initialized\n"); |
| 966 |
|
return -1; |
| 967 |
|
} |
| 968 |
|
|
| 969 |
|
while (!SYS_server_exit) |
| 970 |
|
{ |
| 971 |
|
ret = user_list_try_rw_lock(USER_LIST_TRY_LOCK_WAIT_TIME); |
| 972 |
|
if (ret == 0) // success |
| 973 |
|
{ |
| 974 |
|
break; |
| 975 |
|
} |
| 976 |
|
else if (errno == EAGAIN || errno == EINTR) // retry |
| 977 |
|
{ |
| 978 |
|
timer++; |
| 979 |
|
if (timer % USER_LIST_TRY_LOCK_TIMES == 0) |
| 980 |
|
{ |
| 981 |
|
log_error("user_list_try_rw_lock() tried %d times\n", timer); |
| 982 |
|
|
| 983 |
|
if (time(NULL) - tm_first_failure >= USER_LIST_DEAD_LOCK_TIMEOUT) |
| 984 |
|
{ |
| 985 |
|
log_error("Unable to acquire rw_lock for %d seconds\n", time(NULL) - tm_first_failure); |
| 986 |
|
#ifndef HAVE_SYSTEM_V |
| 987 |
|
user_list_reset_lock(); |
| 988 |
|
log_error("Reset POSIX semaphore to resolve dead lock\n"); |
| 989 |
|
#endif |
| 990 |
|
break; |
| 991 |
|
} |
| 992 |
|
} |
| 993 |
|
usleep(100 * 1000); // 0.1 second |
| 994 |
|
} |
| 995 |
|
else // failed |
| 996 |
|
{ |
| 997 |
|
log_error("user_list_try_rw_lock() failed\n"); |
| 998 |
|
break; |
| 999 |
|
} |
| 1000 |
|
} |
| 1001 |
|
|
| 1002 |
|
return ret; |
| 1003 |
|
} |
| 1004 |
|
|
| 1005 |
sops[0].sem_num = 1; // w_sem |
#ifndef HAVE_SYSTEM_V |
| 1006 |
sops[0].sem_op = 0; // wait until unlocked |
int user_list_reset_lock(void) |
| 1007 |
sops[0].sem_flg = 0; |
{ |
| 1008 |
|
if (p_user_list_pool == NULL) |
| 1009 |
|
{ |
| 1010 |
|
log_error("p_user_list_pool not initialized\n"); |
| 1011 |
|
return -1; |
| 1012 |
|
} |
| 1013 |
|
|
| 1014 |
|
if (sem_destroy(&(p_user_list_pool->sem)) == -1) |
| 1015 |
|
{ |
| 1016 |
|
log_error("sem_destroy() error (%d)\n", errno); |
| 1017 |
|
} |
| 1018 |
|
|
| 1019 |
|
p_user_list_pool->read_lock_count = 0; |
| 1020 |
|
p_user_list_pool->write_lock_count = 0; |
| 1021 |
|
|
| 1022 |
|
if (sem_init(&(p_user_list_pool->sem), 1, 1) == -1) |
| 1023 |
|
{ |
| 1024 |
|
log_error("sem_init() error (%d)\n", errno); |
| 1025 |
|
} |
| 1026 |
|
|
| 1027 |
sops[1].sem_num = 1; // w_sem |
return 0; |
| 1028 |
sops[1].sem_op = 1; // lock |
} |
| 1029 |
sops[1].sem_flg = SEM_UNDO; // undo on terminate |
#endif |
| 1030 |
|
|
| 1031 |
sops[2].sem_num = 0; // r_sem |
int query_user_list(int page_id, USER_INFO *p_users, int *p_user_count, int *p_page_count) |
| 1032 |
sops[2].sem_op = 0; // wait until unlocked |
{ |
| 1033 |
sops[2].sem_flg = 0; |
int ret = 0; |
| 1034 |
|
|
| 1035 |
timeout.tv_sec = wait_sec; |
if (p_users == NULL || p_user_count == NULL || p_page_count == NULL) |
| 1036 |
timeout.tv_nsec = 0; |
{ |
| 1037 |
|
log_error("NULL pointer error\n"); |
| 1038 |
|
return -1; |
| 1039 |
|
} |
| 1040 |
|
|
| 1041 |
|
*p_user_count = 0; |
| 1042 |
|
*p_page_count = 0; |
| 1043 |
|
|
| 1044 |
|
// acquire lock of user list |
| 1045 |
|
if (user_list_rd_lock() < 0) |
| 1046 |
|
{ |
| 1047 |
|
log_error("user_list_rd_lock() error\n"); |
| 1048 |
|
return -2; |
| 1049 |
|
} |
| 1050 |
|
|
| 1051 |
|
if (p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].user_count == 0) |
| 1052 |
|
{ |
| 1053 |
|
// empty list |
| 1054 |
|
ret = 0; |
| 1055 |
|
goto cleanup; |
| 1056 |
|
} |
| 1057 |
|
|
| 1058 |
|
*p_page_count = (p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].user_count + BBS_user_limit_per_page - 1) / |
| 1059 |
|
BBS_user_limit_per_page; |
| 1060 |
|
|
| 1061 |
|
if (page_id < 0 || page_id >= *p_page_count) |
| 1062 |
|
{ |
| 1063 |
|
log_error("Invalid page_id = %d, not in range [0, %d)\n", page_id, *p_page_count); |
| 1064 |
|
ret = -3; |
| 1065 |
|
goto cleanup; |
| 1066 |
|
} |
| 1067 |
|
|
| 1068 |
|
*p_user_count = MIN(BBS_user_limit_per_page, |
| 1069 |
|
p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].user_count - |
| 1070 |
|
page_id * BBS_user_limit_per_page); |
| 1071 |
|
|
| 1072 |
|
memcpy(p_users, |
| 1073 |
|
p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].users + page_id * BBS_user_limit_per_page, |
| 1074 |
|
sizeof(USER_INFO) * (size_t)(*p_user_count)); |
| 1075 |
|
|
| 1076 |
ret = semtimedop(semid, sops, 3, &timeout); |
cleanup: |
| 1077 |
if (ret == -1 && errno != EAGAIN && errno != EINTR) |
// release lock of user list |
| 1078 |
{ |
if (user_list_rd_unlock() < 0) |
| 1079 |
log_error("semtimedop(lock write) error %d\n", errno); |
{ |
| 1080 |
} |
log_error("user_list_rd_unlock() error\n"); |
| 1081 |
|
ret = -1; |
| 1082 |
|
} |
| 1083 |
|
|
| 1084 |
return ret; |
return ret; |
| 1085 |
} |
} |
| 1086 |
|
|
| 1087 |
int user_list_rd_unlock(int semid) |
int query_user_online_list(int page_id, USER_ONLINE_INFO *p_online_users, int *p_user_count, int *p_page_count) |
| 1088 |
{ |
{ |
| 1089 |
struct sembuf sops[2]; |
int ret = 0; |
|
int ret; |
|
| 1090 |
|
|
| 1091 |
sops[0].sem_num = 0; // r_sem |
if (p_online_users == NULL || p_user_count == NULL || p_page_count == NULL) |
| 1092 |
sops[0].sem_op = -1; // unlock |
{ |
| 1093 |
sops[0].sem_flg = IPC_NOWAIT | SEM_UNDO; // no wait |
log_error("NULL pointer error\n"); |
| 1094 |
|
return -1; |
| 1095 |
|
} |
| 1096 |
|
|
| 1097 |
|
*p_user_count = 0; |
| 1098 |
|
*p_page_count = 0; |
| 1099 |
|
|
| 1100 |
|
// acquire lock of user list |
| 1101 |
|
if (user_list_rd_lock() < 0) |
| 1102 |
|
{ |
| 1103 |
|
log_error("user_list_rd_lock() error\n"); |
| 1104 |
|
return -2; |
| 1105 |
|
} |
| 1106 |
|
|
| 1107 |
|
if (p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].user_count == 0) |
| 1108 |
|
{ |
| 1109 |
|
// empty list |
| 1110 |
|
ret = 0; |
| 1111 |
|
goto cleanup; |
| 1112 |
|
} |
| 1113 |
|
|
| 1114 |
|
*p_page_count = (p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].user_count + BBS_user_limit_per_page - 1) / BBS_user_limit_per_page; |
| 1115 |
|
|
| 1116 |
|
if (page_id < 0 || page_id >= *p_page_count) |
| 1117 |
|
{ |
| 1118 |
|
log_error("Invalid page_id = %d, not in range [0, %d)\n", page_id, *p_page_count); |
| 1119 |
|
ret = -3; |
| 1120 |
|
goto cleanup; |
| 1121 |
|
} |
| 1122 |
|
|
| 1123 |
|
*p_user_count = MIN(BBS_user_limit_per_page, |
| 1124 |
|
p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].user_count - |
| 1125 |
|
page_id * BBS_user_limit_per_page); |
| 1126 |
|
|
| 1127 |
|
memcpy(p_online_users, |
| 1128 |
|
p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].users + page_id * BBS_user_limit_per_page, |
| 1129 |
|
sizeof(USER_ONLINE_INFO) * (size_t)(*p_user_count)); |
| 1130 |
|
|
| 1131 |
ret = semop(semid, sops, 1); |
cleanup: |
| 1132 |
if (ret == -1 && errno != EAGAIN && errno != EINTR) |
// release lock of user list |
| 1133 |
{ |
if (user_list_rd_unlock() < 0) |
| 1134 |
log_error("semop(unlock read) error %d\n", errno); |
{ |
| 1135 |
} |
log_error("user_list_rd_unlock() error\n"); |
| 1136 |
|
ret = -1; |
| 1137 |
|
} |
| 1138 |
|
|
| 1139 |
return ret; |
return ret; |
| 1140 |
} |
} |
| 1141 |
|
|
| 1142 |
int user_list_rw_unlock(int semid) |
int get_user_list_count(int *p_user_cnt) |
| 1143 |
{ |
{ |
| 1144 |
struct sembuf sops[1]; |
if (p_user_cnt == NULL) |
| 1145 |
int ret; |
{ |
| 1146 |
|
log_error("NULL pointer error\n"); |
| 1147 |
|
return -1; |
| 1148 |
|
} |
| 1149 |
|
|
| 1150 |
|
// acquire lock of user list |
| 1151 |
|
if (user_list_rd_lock() < 0) |
| 1152 |
|
{ |
| 1153 |
|
log_error("user_list_rd_lock() error\n"); |
| 1154 |
|
return -2; |
| 1155 |
|
} |
| 1156 |
|
|
| 1157 |
|
*p_user_cnt = p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].user_count; |
| 1158 |
|
|
| 1159 |
|
// release lock of user list |
| 1160 |
|
if (user_list_rd_unlock() < 0) |
| 1161 |
|
{ |
| 1162 |
|
log_error("user_list_rd_unlock() error\n"); |
| 1163 |
|
return -2; |
| 1164 |
|
} |
| 1165 |
|
|
| 1166 |
sops[0].sem_num = 1; // w_sem |
return 0; |
| 1167 |
sops[0].sem_op = -1; // unlock |
} |
|
sops[0].sem_flg = IPC_NOWAIT | SEM_UNDO; // no wait |
|
| 1168 |
|
|
| 1169 |
ret = semop(semid, sops, 1); |
int get_user_online_list_count(int *p_user_cnt, int *p_guest_cnt) |
| 1170 |
if (ret == -1 && errno != EAGAIN && errno != EINTR) |
{ |
| 1171 |
{ |
if (p_user_cnt == NULL || p_guest_cnt == NULL) |
| 1172 |
log_error("semop(unlock write) error %d\n", errno); |
{ |
| 1173 |
} |
log_error("NULL pointer error\n"); |
| 1174 |
|
return -1; |
| 1175 |
|
} |
| 1176 |
|
|
| 1177 |
|
// acquire lock of user list |
| 1178 |
|
if (user_list_rd_lock() < 0) |
| 1179 |
|
{ |
| 1180 |
|
log_error("user_list_rd_lock() error\n"); |
| 1181 |
|
return -2; |
| 1182 |
|
} |
| 1183 |
|
|
| 1184 |
|
*p_user_cnt = p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].user_count; |
| 1185 |
|
*p_guest_cnt = p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].guest_count; |
| 1186 |
|
|
| 1187 |
|
// release lock of user list |
| 1188 |
|
if (user_list_rd_unlock() < 0) |
| 1189 |
|
{ |
| 1190 |
|
log_error("user_list_rd_unlock() error\n"); |
| 1191 |
|
return -2; |
| 1192 |
|
} |
| 1193 |
|
|
| 1194 |
return ret; |
return 0; |
| 1195 |
} |
} |
| 1196 |
|
|
| 1197 |
int user_list_rd_lock(int semid) |
int get_user_login_count(int *p_login_cnt) |
| 1198 |
{ |
{ |
| 1199 |
int timer = 0; |
if (p_login_cnt == NULL) |
| 1200 |
int ret = -1; |
{ |
| 1201 |
|
log_error("NULL pointer error\n"); |
| 1202 |
|
return -1; |
| 1203 |
|
} |
| 1204 |
|
|
| 1205 |
while (!SYS_server_exit) |
*p_login_cnt = p_user_list_pool->user_login_count; |
|
{ |
|
|
ret = user_list_try_rd_lock(semid, USER_LIST_TRY_LOCK_WAIT_TIME); |
|
|
if (ret == 0) // success |
|
|
{ |
|
|
break; |
|
|
} |
|
|
else if (errno == EAGAIN || errno == EINTR) // retry |
|
|
{ |
|
|
timer++; |
|
|
if (timer % USER_LIST_TRY_LOCK_TIMES == 0) |
|
|
{ |
|
|
log_error("user_list_try_rd_lock() tried %d times\n", timer); |
|
|
} |
|
|
} |
|
|
else // failed |
|
|
{ |
|
|
log_error("user_list_try_rd_lock() failed\n"); |
|
|
break; |
|
|
} |
|
|
} |
|
| 1206 |
|
|
| 1207 |
return ret; |
return 0; |
| 1208 |
} |
} |
| 1209 |
|
|
| 1210 |
int user_list_rw_lock(int semid) |
int query_user_info(int32_t id, USER_INFO *p_user) |
| 1211 |
{ |
{ |
| 1212 |
int timer = 0; |
int ret = 0; |
|
int ret = -1; |
|
| 1213 |
|
|
| 1214 |
while (!SYS_server_exit) |
if (p_user == NULL) |
| 1215 |
{ |
{ |
| 1216 |
ret = user_list_try_rw_lock(semid, USER_LIST_TRY_LOCK_WAIT_TIME); |
log_error("NULL pointer error\n"); |
| 1217 |
if (ret == 0) // success |
return -1; |
| 1218 |
{ |
} |
| 1219 |
break; |
|
| 1220 |
} |
// acquire lock of user list |
| 1221 |
else if (errno == EAGAIN || errno == EINTR) // retry |
if (user_list_rd_lock() < 0) |
| 1222 |
{ |
{ |
| 1223 |
timer++; |
log_error("user_list_rd_lock() error\n"); |
| 1224 |
if (timer % USER_LIST_TRY_LOCK_TIMES == 0) |
return -2; |
| 1225 |
{ |
} |
| 1226 |
log_error("user_list_try_rw_lock() tried %d times\n", timer); |
|
| 1227 |
} |
if (id >= 0 && id < p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].user_count) // Found |
| 1228 |
} |
{ |
| 1229 |
else // failed |
*p_user = p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].users[id]; |
| 1230 |
{ |
ret = 1; |
| 1231 |
log_error("user_list_try_rw_lock() failed\n"); |
} |
| 1232 |
break; |
|
| 1233 |
} |
// release lock of user list |
| 1234 |
} |
if (user_list_rd_unlock() < 0) |
| 1235 |
|
{ |
| 1236 |
|
log_error("user_list_rd_unlock() error\n"); |
| 1237 |
|
ret = -1; |
| 1238 |
|
} |
| 1239 |
|
|
| 1240 |
return ret; |
return ret; |
| 1241 |
} |
} |
| 1242 |
|
|
| 1243 |
int query_user_list(int page_id, USER_INFO *p_users, int *p_user_count, int *p_page_count) |
int query_user_info_by_uid(int32_t uid, USER_INFO *p_user, char *p_intro_buf, size_t intro_buf_len) |
| 1244 |
{ |
{ |
| 1245 |
int ret = 0; |
int left; |
| 1246 |
|
int right; |
| 1247 |
|
int mid; |
| 1248 |
|
int32_t id; |
| 1249 |
|
int ret = 0; |
| 1250 |
|
|
| 1251 |
|
if (p_user == NULL) |
| 1252 |
|
{ |
| 1253 |
|
log_error("NULL pointer error\n"); |
| 1254 |
|
return -1; |
| 1255 |
|
} |
| 1256 |
|
|
| 1257 |
|
// acquire lock of user list |
| 1258 |
|
if (user_list_rd_lock() < 0) |
| 1259 |
|
{ |
| 1260 |
|
log_error("user_list_rd_lock() error\n"); |
| 1261 |
|
return -2; |
| 1262 |
|
} |
| 1263 |
|
|
| 1264 |
|
left = 0; |
| 1265 |
|
right = p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].user_count - 1; |
| 1266 |
|
|
| 1267 |
|
while (left < right) |
| 1268 |
|
{ |
| 1269 |
|
mid = (left + right) / 2; |
| 1270 |
|
if (uid < p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].index_uid[mid].uid) |
| 1271 |
|
{ |
| 1272 |
|
right = mid - 1; |
| 1273 |
|
} |
| 1274 |
|
else if (uid > p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].index_uid[mid].uid) |
| 1275 |
|
{ |
| 1276 |
|
left = mid + 1; |
| 1277 |
|
} |
| 1278 |
|
else // if (uid == p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].index_uid[mid].uid) |
| 1279 |
|
{ |
| 1280 |
|
left = mid; |
| 1281 |
|
break; |
| 1282 |
|
} |
| 1283 |
|
} |
| 1284 |
|
|
| 1285 |
|
if (uid == p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].index_uid[left].uid) // Found |
| 1286 |
|
{ |
| 1287 |
|
id = p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].index_uid[left].id; |
| 1288 |
|
*p_user = p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].users[id]; |
| 1289 |
|
ret = 1; |
| 1290 |
|
|
| 1291 |
|
if (p_intro_buf != NULL) |
| 1292 |
|
{ |
| 1293 |
|
strncpy(p_intro_buf, p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].users[id].intro, intro_buf_len - 1); |
| 1294 |
|
p_intro_buf[intro_buf_len - 1] = '\0'; |
| 1295 |
|
p_user->intro = p_intro_buf; |
| 1296 |
|
} |
| 1297 |
|
} |
| 1298 |
|
|
| 1299 |
|
// release lock of user list |
| 1300 |
|
if (user_list_rd_unlock() < 0) |
| 1301 |
|
{ |
| 1302 |
|
log_error("user_list_rd_unlock() error\n"); |
| 1303 |
|
ret = -1; |
| 1304 |
|
} |
| 1305 |
|
|
| 1306 |
if (p_users == NULL || p_user_count == NULL || p_page_count == NULL) |
return ret; |
| 1307 |
{ |
} |
| 1308 |
log_error("NULL pointer error\n"); |
|
| 1309 |
return -1; |
int query_user_info_by_username(const char *username_prefix, int max_user_cnt, |
| 1310 |
} |
int32_t uid_list[], char username_list[][BBS_username_max_len + 1]) |
| 1311 |
|
{ |
| 1312 |
// acquire lock of user list |
int left; |
| 1313 |
if (user_list_rd_lock(p_user_list_pool->semid) < 0) |
int right; |
| 1314 |
{ |
int mid; |
| 1315 |
log_error("user_list_rd_lock() error\n"); |
int left_save; |
| 1316 |
return -2; |
int ret = 0; |
| 1317 |
} |
size_t prefix_len; |
| 1318 |
|
int comp; |
| 1319 |
if (p_user_list_pool->p_current->user_count == 0) |
int i; |
| 1320 |
{ |
|
| 1321 |
// empty list |
if (username_prefix == NULL || uid_list == NULL || username_list == NULL) |
| 1322 |
ret = 0; |
{ |
| 1323 |
goto cleanup; |
log_error("NULL pointer error\n"); |
| 1324 |
} |
return -1; |
| 1325 |
|
} |
| 1326 |
*p_page_count = p_user_list_pool->p_current->user_count / BBS_user_limit_per_page + |
|
| 1327 |
(p_user_list_pool->p_current->user_count % BBS_user_limit_per_page == 0 ? 0 : 1); |
prefix_len = strlen(username_prefix); |
| 1328 |
|
|
| 1329 |
if (page_id < 0 || page_id >= *p_page_count) |
// acquire lock of user list |
| 1330 |
{ |
if (user_list_rd_lock() < 0) |
| 1331 |
log_error("Invalid page_id = %d, not in range [0, %d)\n", page_id, *p_page_count); |
{ |
| 1332 |
ret = -3; |
log_error("user_list_rd_lock() error\n"); |
| 1333 |
goto cleanup; |
return -2; |
| 1334 |
} |
} |
| 1335 |
|
|
| 1336 |
*p_user_count = MIN(BBS_user_limit_per_page, |
left = 0; |
| 1337 |
p_user_list_pool->p_current->user_count - |
right = p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].user_count - 1; |
| 1338 |
page_id * BBS_user_limit_per_page); |
|
| 1339 |
|
while (left < right) |
| 1340 |
memcpy(p_users, |
{ |
| 1341 |
p_user_list_pool->p_current->users + page_id * BBS_user_limit_per_page, |
mid = (left + right) / 2; |
| 1342 |
sizeof(USER_INFO) * (size_t)(*p_user_count)); |
comp = strncasecmp(username_prefix, p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].users[mid].username, prefix_len); |
| 1343 |
|
if (comp < 0) |
| 1344 |
|
{ |
| 1345 |
|
right = mid - 1; |
| 1346 |
|
} |
| 1347 |
|
else if (comp > 0) |
| 1348 |
|
{ |
| 1349 |
|
left = mid + 1; |
| 1350 |
|
} |
| 1351 |
|
else // if (comp == 0) |
| 1352 |
|
{ |
| 1353 |
|
left = mid; |
| 1354 |
|
break; |
| 1355 |
|
} |
| 1356 |
|
} |
| 1357 |
|
|
| 1358 |
|
if (strncasecmp(username_prefix, p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].users[left].username, prefix_len) == 0) // Found |
| 1359 |
|
{ |
| 1360 |
|
log_debug("Debug: match found, pos=%d\n", left); |
| 1361 |
|
|
| 1362 |
|
left_save = left; |
| 1363 |
|
right = left; |
| 1364 |
|
left = 0; |
| 1365 |
|
|
| 1366 |
|
while (left < right) |
| 1367 |
|
{ |
| 1368 |
|
mid = (left + right) / 2; |
| 1369 |
|
comp = strncasecmp(username_prefix, p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].users[mid].username, prefix_len); |
| 1370 |
|
if (comp > 0) |
| 1371 |
|
{ |
| 1372 |
|
left = mid + 1; |
| 1373 |
|
} |
| 1374 |
|
else if (comp == 0) |
| 1375 |
|
{ |
| 1376 |
|
right = mid; |
| 1377 |
|
} |
| 1378 |
|
else // if (comp < 0) |
| 1379 |
|
{ |
| 1380 |
|
log_error("Bug: left=%d right=%d mid=%d"); |
| 1381 |
|
ret = -2; |
| 1382 |
|
goto cleanup; |
| 1383 |
|
} |
| 1384 |
|
} |
| 1385 |
|
|
| 1386 |
|
log_debug("Debug: first match found, pos=%d\n", right); |
| 1387 |
|
|
| 1388 |
|
left = left_save; |
| 1389 |
|
left_save = right; |
| 1390 |
|
right = p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].user_count - 1; |
| 1391 |
|
|
| 1392 |
|
while (left < right) |
| 1393 |
|
{ |
| 1394 |
|
mid = (left + right) / 2 + (left + right) % 2; |
| 1395 |
|
comp = strncasecmp(username_prefix, p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].users[mid].username, prefix_len); |
| 1396 |
|
if (comp < 0) |
| 1397 |
|
{ |
| 1398 |
|
right = mid - 1; |
| 1399 |
|
} |
| 1400 |
|
else if (comp == 0) |
| 1401 |
|
{ |
| 1402 |
|
left = mid; |
| 1403 |
|
} |
| 1404 |
|
else // if (comp > 0) |
| 1405 |
|
{ |
| 1406 |
|
log_error("Bug: left=%d right=%d mid=%d"); |
| 1407 |
|
ret = -2; |
| 1408 |
|
goto cleanup; |
| 1409 |
|
} |
| 1410 |
|
} |
| 1411 |
|
|
| 1412 |
|
log_debug("Debug: last match found, pos=%d\n", left); |
| 1413 |
|
|
| 1414 |
|
right = left; |
| 1415 |
|
left = left_save; |
| 1416 |
|
|
| 1417 |
|
for (i = 0; i < max_user_cnt && left + i <= right; i++) |
| 1418 |
|
{ |
| 1419 |
|
uid_list[i] = p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].users[left + i].uid; |
| 1420 |
|
strncpy(username_list[i], p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].users[left + i].username, sizeof(username_list[i]) - 1); |
| 1421 |
|
username_list[i][sizeof(username_list[i]) - 1] = '\0'; |
| 1422 |
|
} |
| 1423 |
|
ret = i; |
| 1424 |
|
} |
| 1425 |
|
|
| 1426 |
cleanup: |
cleanup: |
| 1427 |
// release lock of user list |
// release lock of user list |
| 1428 |
if (user_list_rd_unlock(p_user_list_pool->semid) < 0) |
if (user_list_rd_unlock() < 0) |
| 1429 |
{ |
{ |
| 1430 |
log_error("user_list_rd_unlock() error\n"); |
log_error("user_list_rd_unlock() error\n"); |
| 1431 |
ret = -1; |
ret = -1; |
| 1432 |
} |
} |
| 1433 |
|
|
| 1434 |
return ret; |
return ret; |
| 1435 |
} |
} |
| 1436 |
|
|
| 1437 |
int query_user_info(int32_t uid, USER_INFO *p_user) |
int query_user_online_info(int32_t id, USER_ONLINE_INFO *p_user) |
| 1438 |
{ |
{ |
| 1439 |
int left; |
int ret = 0; |
| 1440 |
int right; |
|
| 1441 |
int mid; |
if (p_user == NULL) |
| 1442 |
int ret = 0; |
{ |
| 1443 |
|
log_error("NULL pointer error\n"); |
| 1444 |
if (p_user == NULL) |
return -1; |
| 1445 |
{ |
} |
| 1446 |
log_error("NULL pointer error\n"); |
|
| 1447 |
return -1; |
// acquire lock of user list |
| 1448 |
} |
if (user_list_rd_lock() < 0) |
| 1449 |
|
{ |
| 1450 |
// acquire lock of user list |
log_error("user_list_rd_lock() error\n"); |
| 1451 |
if (user_list_rd_lock(p_user_list_pool->semid) < 0) |
return -2; |
| 1452 |
{ |
} |
| 1453 |
log_error("user_list_rd_lock() error\n"); |
|
| 1454 |
return -2; |
if (id >= 0 && id < p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].user_count) // Found |
| 1455 |
} |
{ |
| 1456 |
|
*p_user = p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].users[id]; |
| 1457 |
left = 0; |
ret = 1; |
| 1458 |
right = p_user_list_pool->p_current->user_count - 1; |
} |
| 1459 |
|
|
| 1460 |
while (left < right) |
// release lock of user list |
| 1461 |
{ |
if (user_list_rd_unlock() < 0) |
| 1462 |
mid = (left + right) / 2; |
{ |
| 1463 |
if (uid < p_user_list_pool->p_current->users[mid].uid) |
log_error("user_list_rd_unlock() error\n"); |
| 1464 |
{ |
ret = -1; |
| 1465 |
right = mid; |
} |
| 1466 |
} |
|
| 1467 |
else if (uid > p_user_list_pool->p_current->users[mid].uid) |
return ret; |
| 1468 |
{ |
} |
| 1469 |
left = mid + 1; |
|
| 1470 |
} |
int query_user_online_info_by_uid(int32_t uid, USER_ONLINE_INFO *p_users, int *p_user_cnt, int start_id) |
| 1471 |
else // if (uid == p_user_list_pool->p_current->users[mid].uid) |
{ |
| 1472 |
{ |
int left; |
| 1473 |
left = mid; |
int right; |
| 1474 |
break; |
int mid; |
| 1475 |
} |
int32_t id; |
| 1476 |
} |
int ret = 0; |
| 1477 |
|
int i; |
| 1478 |
if (uid == p_user_list_pool->p_current->users[left].uid) // Found |
int user_cnt; |
| 1479 |
{ |
|
| 1480 |
*p_user = p_user_list_pool->p_current->users[left]; |
if (p_users == NULL || p_user_cnt == NULL) |
| 1481 |
ret = 1; |
{ |
| 1482 |
} |
log_error("NULL pointer error\n"); |
| 1483 |
|
return -1; |
| 1484 |
// release lock of user list |
} |
| 1485 |
if (user_list_rd_unlock(p_user_list_pool->semid) < 0) |
|
| 1486 |
{ |
user_cnt = *p_user_cnt; |
| 1487 |
log_error("user_list_rd_unlock() error\n"); |
*p_user_cnt = 0; |
| 1488 |
ret = -1; |
|
| 1489 |
} |
// acquire lock of user list |
| 1490 |
|
if (user_list_rd_lock() < 0) |
| 1491 |
|
{ |
| 1492 |
|
log_error("user_list_rd_lock() error\n"); |
| 1493 |
|
return -2; |
| 1494 |
|
} |
| 1495 |
|
|
| 1496 |
|
left = start_id; |
| 1497 |
|
right = p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].user_count - 1; |
| 1498 |
|
|
| 1499 |
|
while (left < right) |
| 1500 |
|
{ |
| 1501 |
|
mid = (left + right) / 2; |
| 1502 |
|
if (uid < p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].index_uid[mid].uid) |
| 1503 |
|
{ |
| 1504 |
|
right = mid - 1; |
| 1505 |
|
} |
| 1506 |
|
else if (uid > p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].index_uid[mid].uid) |
| 1507 |
|
{ |
| 1508 |
|
left = mid + 1; |
| 1509 |
|
} |
| 1510 |
|
else // if (uid == p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].index_uid[mid].uid) |
| 1511 |
|
{ |
| 1512 |
|
left = mid; |
| 1513 |
|
break; |
| 1514 |
|
} |
| 1515 |
|
} |
| 1516 |
|
|
| 1517 |
|
if (uid == p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].index_uid[left].uid) |
| 1518 |
|
{ |
| 1519 |
|
right = left; |
| 1520 |
|
left = start_id; |
| 1521 |
|
|
| 1522 |
|
while (left < right) |
| 1523 |
|
{ |
| 1524 |
|
mid = (left + right) / 2; |
| 1525 |
|
if (uid - 1 < p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].index_uid[mid].uid) |
| 1526 |
|
{ |
| 1527 |
|
right = mid; |
| 1528 |
|
} |
| 1529 |
|
else // if (uid - 1 >= p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].index_uid[mid].uid) |
| 1530 |
|
{ |
| 1531 |
|
left = mid + 1; |
| 1532 |
|
} |
| 1533 |
|
} |
| 1534 |
|
|
| 1535 |
|
for (i = 0; |
| 1536 |
|
left < p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].user_count && i < user_cnt && |
| 1537 |
|
uid == p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].index_uid[left].uid; |
| 1538 |
|
left++, i++) |
| 1539 |
|
{ |
| 1540 |
|
id = p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].index_uid[left].id; |
| 1541 |
|
p_users[i] = p_user_list_pool->user_online_list[p_user_list_pool->user_online_list_index_current].users[id]; |
| 1542 |
|
} |
| 1543 |
|
|
| 1544 |
|
if (i > 0) |
| 1545 |
|
{ |
| 1546 |
|
*p_user_cnt = i; |
| 1547 |
|
ret = 1; |
| 1548 |
|
} |
| 1549 |
|
} |
| 1550 |
|
|
| 1551 |
|
// release lock of user list |
| 1552 |
|
if (user_list_rd_unlock() < 0) |
| 1553 |
|
{ |
| 1554 |
|
log_error("user_list_rd_unlock() error\n"); |
| 1555 |
|
ret = -1; |
| 1556 |
|
} |
| 1557 |
|
|
| 1558 |
|
return ret; |
| 1559 |
|
} |
| 1560 |
|
|
| 1561 |
|
int get_user_id_list(int32_t *p_uid_list, int *p_user_cnt, int start_uid) |
| 1562 |
|
{ |
| 1563 |
|
int left; |
| 1564 |
|
int right; |
| 1565 |
|
int mid; |
| 1566 |
|
int ret = 0; |
| 1567 |
|
int i; |
| 1568 |
|
|
| 1569 |
|
if (p_uid_list == NULL || p_user_cnt == NULL) |
| 1570 |
|
{ |
| 1571 |
|
log_error("NULL pointer error\n"); |
| 1572 |
|
return -1; |
| 1573 |
|
} |
| 1574 |
|
|
| 1575 |
|
// acquire lock of user list |
| 1576 |
|
if (user_list_rd_lock() < 0) |
| 1577 |
|
{ |
| 1578 |
|
log_error("user_list_rd_lock() error\n"); |
| 1579 |
|
return -2; |
| 1580 |
|
} |
| 1581 |
|
|
| 1582 |
|
left = 0; |
| 1583 |
|
right = p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].user_count - 1; |
| 1584 |
|
|
| 1585 |
|
while (left < right) |
| 1586 |
|
{ |
| 1587 |
|
mid = (left + right) / 2; |
| 1588 |
|
if (start_uid < p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].index_uid[mid].uid) |
| 1589 |
|
{ |
| 1590 |
|
right = mid - 1; |
| 1591 |
|
} |
| 1592 |
|
else if (start_uid > p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].index_uid[mid].uid) |
| 1593 |
|
{ |
| 1594 |
|
left = mid + 1; |
| 1595 |
|
} |
| 1596 |
|
else // if (start_uid == p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].index_uid[mid].uid) |
| 1597 |
|
{ |
| 1598 |
|
left = mid; |
| 1599 |
|
break; |
| 1600 |
|
} |
| 1601 |
|
} |
| 1602 |
|
|
| 1603 |
|
for (i = 0; i < *p_user_cnt && left + i < p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].user_count; i++) |
| 1604 |
|
{ |
| 1605 |
|
p_uid_list[i] = p_user_list_pool->user_list[p_user_list_pool->user_list_index_current].index_uid[left + i].uid; |
| 1606 |
|
} |
| 1607 |
|
*p_user_cnt = i; |
| 1608 |
|
|
| 1609 |
|
// release lock of user list |
| 1610 |
|
if (user_list_rd_unlock() < 0) |
| 1611 |
|
{ |
| 1612 |
|
log_error("user_list_rd_unlock() error\n"); |
| 1613 |
|
ret = -1; |
| 1614 |
|
} |
| 1615 |
|
|
| 1616 |
|
return ret; |
| 1617 |
|
} |
| 1618 |
|
|
| 1619 |
|
int user_stat_update(void) |
| 1620 |
|
{ |
| 1621 |
|
return user_stat_map_update(&(p_user_list_pool->user_stat_map)); |
| 1622 |
|
} |
| 1623 |
|
|
| 1624 |
|
int user_article_cnt_inc(int32_t uid, int n) |
| 1625 |
|
{ |
| 1626 |
|
return user_stat_article_cnt_inc(&(p_user_list_pool->user_stat_map), uid, n); |
| 1627 |
|
} |
| 1628 |
|
|
| 1629 |
|
int get_user_article_cnt(int32_t uid) |
| 1630 |
|
{ |
| 1631 |
|
const USER_STAT *p_stat; |
| 1632 |
|
int ret; |
| 1633 |
|
|
| 1634 |
|
ret = user_stat_get(&(p_user_list_pool->user_stat_map), uid, &p_stat); |
| 1635 |
|
if (ret < 0) |
| 1636 |
|
{ |
| 1637 |
|
log_error("user_stat_get(uid=%d) error: %d\n", uid, ret); |
| 1638 |
|
return -1; |
| 1639 |
|
} |
| 1640 |
|
else if (ret == 0) // user not found |
| 1641 |
|
{ |
| 1642 |
|
return -1; |
| 1643 |
|
} |
| 1644 |
|
|
| 1645 |
return ret; |
return p_stat->article_count; |
| 1646 |
} |
} |
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