| 1 |
/***************************************************************************
|
| 2 |
section_list_loader.c - description
|
| 3 |
-------------------
|
| 4 |
Copyright : (C) 2004-2025 by Leaflet
|
| 5 |
Email : leaflet@leafok.com
|
| 6 |
***************************************************************************/
|
| 7 |
|
| 8 |
/***************************************************************************
|
| 9 |
* *
|
| 10 |
* This program is free software; you can redistribute it and/or modify *
|
| 11 |
* it under the terms of the GNU General Public License as published by *
|
| 12 |
* the Free Software Foundation; either version 3 of the License, or *
|
| 13 |
* (at your option) any later version. *
|
| 14 |
* *
|
| 15 |
***************************************************************************/
|
| 16 |
|
| 17 |
#include "section_list_loader.h"
|
| 18 |
#include "log.h"
|
| 19 |
#include "database.h"
|
| 20 |
#include "menu.h"
|
| 21 |
#include <stdio.h>
|
| 22 |
#include <string.h>
|
| 23 |
#include <errno.h>
|
| 24 |
#include <signal.h>
|
| 25 |
#include <stdlib.h>
|
| 26 |
#include <strings.h>
|
| 27 |
#include <unistd.h>
|
| 28 |
|
| 29 |
#define SECTION_LIST_LOAD_INTERVAL 10 // second
|
| 30 |
|
| 31 |
int section_list_loader_pid;
|
| 32 |
int last_article_op_log_mid;
|
| 33 |
|
| 34 |
int load_section_config_from_db(void)
|
| 35 |
{
|
| 36 |
MYSQL *db;
|
| 37 |
MYSQL_RES *rs, *rs2;
|
| 38 |
MYSQL_ROW row, row2;
|
| 39 |
char sql[SQL_BUFFER_LEN];
|
| 40 |
int32_t sid;
|
| 41 |
char master_name[BBS_username_max_len + 1];
|
| 42 |
SECTION_LIST *p_section;
|
| 43 |
int ret;
|
| 44 |
|
| 45 |
db = db_open();
|
| 46 |
if (db == NULL)
|
| 47 |
{
|
| 48 |
log_error("db_open() error: %s\n", mysql_error(db));
|
| 49 |
return -2;
|
| 50 |
}
|
| 51 |
|
| 52 |
snprintf(sql, sizeof(sql),
|
| 53 |
"SELECT section_config.SID, sname, section_config.title, section_config.CID, "
|
| 54 |
"read_user_level, write_user_level, section_config.enable * section_class.enable AS enable "
|
| 55 |
"FROM section_config INNER JOIN section_class ON section_config.CID = section_class.CID "
|
| 56 |
"ORDER BY section_config.SID");
|
| 57 |
|
| 58 |
if (mysql_query(db, sql) != 0)
|
| 59 |
{
|
| 60 |
log_error("Query section_list error: %s\n", mysql_error(db));
|
| 61 |
return -3;
|
| 62 |
}
|
| 63 |
if ((rs = mysql_store_result(db)) == NULL)
|
| 64 |
{
|
| 65 |
log_error("Get section_list data failed\n");
|
| 66 |
return -3;
|
| 67 |
}
|
| 68 |
|
| 69 |
ret = 0;
|
| 70 |
while ((row = mysql_fetch_row(rs)))
|
| 71 |
{
|
| 72 |
sid = atoi(row[0]);
|
| 73 |
|
| 74 |
// Query section master
|
| 75 |
snprintf(sql, sizeof(sql),
|
| 76 |
"SELECT username FROM section_master "
|
| 77 |
"INNER JOIN user_list ON section_master.UID = user_list.UID "
|
| 78 |
"WHERE SID = %d AND section_master.enable AND (NOW() BETWEEN begin_dt AND end_dt) "
|
| 79 |
"ORDER BY major DESC LIMIT 1",
|
| 80 |
sid);
|
| 81 |
|
| 82 |
if (mysql_query(db, sql) != 0)
|
| 83 |
{
|
| 84 |
log_error("Query section_master error: %s\n", mysql_error(db));
|
| 85 |
ret = -3;
|
| 86 |
break;
|
| 87 |
}
|
| 88 |
if ((rs2 = mysql_store_result(db)) == NULL)
|
| 89 |
{
|
| 90 |
log_error("Get section_master data failed\n");
|
| 91 |
ret = -3;
|
| 92 |
break;
|
| 93 |
}
|
| 94 |
if ((row2 = mysql_fetch_row(rs2)))
|
| 95 |
{
|
| 96 |
strncpy(master_name, row2[0], sizeof(master_name) - 1);
|
| 97 |
master_name[sizeof(master_name) - 1] = '\0';
|
| 98 |
}
|
| 99 |
else
|
| 100 |
{
|
| 101 |
master_name[0] = '\0';
|
| 102 |
}
|
| 103 |
mysql_free_result(rs2);
|
| 104 |
|
| 105 |
p_section = section_list_find_by_sid(sid);
|
| 106 |
|
| 107 |
if (p_section == NULL)
|
| 108 |
{
|
| 109 |
p_section = section_list_create(sid, row[1], row[2], "");
|
| 110 |
if (p_section == NULL)
|
| 111 |
{
|
| 112 |
log_error("section_list_create() error: load new section sid = %d sname = %s\n", sid, row[1]);
|
| 113 |
ret = -4;
|
| 114 |
break;
|
| 115 |
}
|
| 116 |
|
| 117 |
// acquire rw lock
|
| 118 |
ret = section_list_rw_lock(p_section);
|
| 119 |
if (ret < 0)
|
| 120 |
{
|
| 121 |
break;
|
| 122 |
}
|
| 123 |
}
|
| 124 |
else
|
| 125 |
{
|
| 126 |
// acquire rw lock
|
| 127 |
ret = section_list_rw_lock(p_section);
|
| 128 |
if (ret < 0)
|
| 129 |
{
|
| 130 |
break;
|
| 131 |
}
|
| 132 |
|
| 133 |
strncpy(p_section->sname, row[1], sizeof(p_section->sname) - 1);
|
| 134 |
p_section->sname[sizeof(p_section->sname) - 1] = '\0';
|
| 135 |
strncpy(p_section->stitle, row[1], sizeof(p_section->stitle) - 1);
|
| 136 |
p_section->stitle[sizeof(p_section->stitle) - 1] = '\0';
|
| 137 |
strncpy(p_section->master_name, master_name, sizeof(p_section->master_name) - 1);
|
| 138 |
p_section->master_name[sizeof(p_section->master_name) - 1] = '\0';
|
| 139 |
}
|
| 140 |
|
| 141 |
p_section->class_id = atoi(row[3]);
|
| 142 |
p_section->read_user_level = atoi(row[4]);
|
| 143 |
p_section->write_user_level = atoi(row[5]);
|
| 144 |
p_section->enable = (int8_t)atoi(row[6]);
|
| 145 |
|
| 146 |
// release rw lock
|
| 147 |
ret = section_list_rw_unlock(p_section);
|
| 148 |
if (ret < 0)
|
| 149 |
{
|
| 150 |
break;
|
| 151 |
}
|
| 152 |
}
|
| 153 |
mysql_free_result(rs);
|
| 154 |
|
| 155 |
mysql_close(db);
|
| 156 |
|
| 157 |
return ret;
|
| 158 |
}
|
| 159 |
|
| 160 |
int append_articles_from_db(int32_t start_aid, int global_lock)
|
| 161 |
{
|
| 162 |
MYSQL *db;
|
| 163 |
MYSQL_RES *rs;
|
| 164 |
MYSQL_ROW row;
|
| 165 |
char sql[SQL_BUFFER_LEN];
|
| 166 |
ARTICLE article;
|
| 167 |
ARTICLE *p_topic;
|
| 168 |
SECTION_LIST *p_section = NULL;
|
| 169 |
int32_t last_sid = 0;
|
| 170 |
int ret = 0;
|
| 171 |
int i;
|
| 172 |
|
| 173 |
db = db_open();
|
| 174 |
if (db == NULL)
|
| 175 |
{
|
| 176 |
log_error("db_open() error: %s\n", mysql_error(db));
|
| 177 |
return -2;
|
| 178 |
}
|
| 179 |
|
| 180 |
snprintf(sql, sizeof(sql),
|
| 181 |
"SELECT AID, TID, SID, CID, UID, visible, excerption, ontop, `lock`, "
|
| 182 |
"transship, username, nickname, title, UNIX_TIMESTAMP(sub_dt) AS sub_dt "
|
| 183 |
"FROM bbs WHERE AID >= %d ORDER BY AID",
|
| 184 |
start_aid);
|
| 185 |
|
| 186 |
if (mysql_query(db, sql) != 0)
|
| 187 |
{
|
| 188 |
log_error("Query article list error: %s\n", mysql_error(db));
|
| 189 |
return -3;
|
| 190 |
}
|
| 191 |
if ((rs = mysql_use_result(db)) == NULL)
|
| 192 |
{
|
| 193 |
log_error("Get article list data failed\n");
|
| 194 |
return -3;
|
| 195 |
}
|
| 196 |
|
| 197 |
// acquire global lock
|
| 198 |
if (global_lock)
|
| 199 |
{
|
| 200 |
if ((ret = section_list_rw_lock(NULL)) < 0)
|
| 201 |
{
|
| 202 |
log_error("section_list_rw_lock(sid = 0) error\n");
|
| 203 |
goto cleanup;
|
| 204 |
}
|
| 205 |
}
|
| 206 |
|
| 207 |
while ((row = mysql_fetch_row(rs)))
|
| 208 |
{
|
| 209 |
bzero(&article, sizeof(ARTICLE));
|
| 210 |
|
| 211 |
// copy data of article
|
| 212 |
i = 0;
|
| 213 |
|
| 214 |
article.aid = atoi(row[i++]);
|
| 215 |
article.tid = atoi(row[i++]);
|
| 216 |
article.sid = atoi(row[i++]);
|
| 217 |
article.cid = atoi(row[i++]);
|
| 218 |
article.uid = atoi(row[i++]);
|
| 219 |
article.visible = (int8_t)atoi(row[i++]);
|
| 220 |
article.excerption = (int8_t)atoi(row[i++]);
|
| 221 |
article.ontop = (int8_t)atoi(row[i++]);
|
| 222 |
article.lock = (int8_t)atoi(row[i++]);
|
| 223 |
article.transship = (int8_t)atoi(row[i++]);
|
| 224 |
|
| 225 |
strncpy(article.username, row[i++], sizeof(article.username) - 1);
|
| 226 |
article.username[sizeof(article.username) - 1] = '\0';
|
| 227 |
strncpy(article.nickname, row[i++], sizeof(article.nickname) - 1);
|
| 228 |
article.nickname[sizeof(article.nickname) - 1] = '\0';
|
| 229 |
strncpy(article.title, row[i++], sizeof(article.title) - 1);
|
| 230 |
article.title[sizeof(article.title) - 1] = '\0';
|
| 231 |
|
| 232 |
article.sub_dt = atol(row[i++]);
|
| 233 |
|
| 234 |
// release lock of last section if different from current one
|
| 235 |
if (!global_lock && article.sid != last_sid && last_sid != 0)
|
| 236 |
{
|
| 237 |
if ((ret = section_list_rw_unlock(p_section)) < 0)
|
| 238 |
{
|
| 239 |
log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
|
| 240 |
break;
|
| 241 |
}
|
| 242 |
}
|
| 243 |
|
| 244 |
if ((p_section = section_list_find_by_sid(article.sid)) == NULL)
|
| 245 |
{
|
| 246 |
log_error("section_list_find_by_sid(%d) error: unknown section, try reloading section config\n", article.sid);
|
| 247 |
ret = ERR_UNKNOWN_SECTION; // Unknown section found
|
| 248 |
break;
|
| 249 |
}
|
| 250 |
|
| 251 |
if (article.visible != 0 && article.tid != 0)
|
| 252 |
{
|
| 253 |
// Check if topic article is visible
|
| 254 |
p_topic = article_block_find_by_aid(article.tid);
|
| 255 |
if (p_topic == NULL || p_topic->visible == 0)
|
| 256 |
{
|
| 257 |
// log_error("Set article (aid = %d) as invisible due to invisible or non-existing topic head\n", article.aid);
|
| 258 |
article.tid = 0;
|
| 259 |
article.visible = 0;
|
| 260 |
}
|
| 261 |
}
|
| 262 |
|
| 263 |
// acquire lock of current section if different from last one
|
| 264 |
if (!global_lock && article.sid != last_sid)
|
| 265 |
{
|
| 266 |
if ((ret = section_list_rw_lock(p_section)) < 0)
|
| 267 |
{
|
| 268 |
log_error("section_list_rw_lock(sid = 0) error\n");
|
| 269 |
break;
|
| 270 |
}
|
| 271 |
}
|
| 272 |
|
| 273 |
// append article to section list
|
| 274 |
last_sid = article.sid;
|
| 275 |
|
| 276 |
if (section_list_append_article(p_section, &article) < 0)
|
| 277 |
{
|
| 278 |
log_error("section_list_append_article(sid = %d, aid = %d) error\n",
|
| 279 |
p_section->sid, article.aid);
|
| 280 |
ret = -3;
|
| 281 |
break;
|
| 282 |
}
|
| 283 |
}
|
| 284 |
|
| 285 |
// release lock of last section
|
| 286 |
if (!global_lock && last_sid != 0)
|
| 287 |
{
|
| 288 |
if ((ret = section_list_rw_unlock(p_section)) < 0)
|
| 289 |
{
|
| 290 |
log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
|
| 291 |
}
|
| 292 |
}
|
| 293 |
|
| 294 |
// release global lock
|
| 295 |
if (global_lock)
|
| 296 |
{
|
| 297 |
if ((ret = section_list_rw_unlock(NULL)) < 0)
|
| 298 |
{
|
| 299 |
log_error("section_list_rw_unlock(sid = 0) error\n");
|
| 300 |
}
|
| 301 |
}
|
| 302 |
|
| 303 |
cleanup:
|
| 304 |
mysql_free_result(rs);
|
| 305 |
|
| 306 |
mysql_close(db);
|
| 307 |
|
| 308 |
return ret;
|
| 309 |
}
|
| 310 |
|
| 311 |
int set_last_article_op_log_from_db(void)
|
| 312 |
{
|
| 313 |
MYSQL *db;
|
| 314 |
MYSQL_RES *rs;
|
| 315 |
MYSQL_ROW row;
|
| 316 |
char sql[SQL_BUFFER_LEN];
|
| 317 |
|
| 318 |
db = db_open();
|
| 319 |
if (db == NULL)
|
| 320 |
{
|
| 321 |
log_error("db_open() error: %s\n", mysql_error(db));
|
| 322 |
return -1;
|
| 323 |
}
|
| 324 |
|
| 325 |
snprintf(sql, sizeof(sql),
|
| 326 |
"SELECT MID FROM bbs_article_op ORDER BY MID DESC LIMIT 1");
|
| 327 |
|
| 328 |
if (mysql_query(db, sql) != 0)
|
| 329 |
{
|
| 330 |
log_error("Query article op error: %s\n", mysql_error(db));
|
| 331 |
return -2;
|
| 332 |
}
|
| 333 |
if ((rs = mysql_store_result(db)) == NULL)
|
| 334 |
{
|
| 335 |
log_error("Get article op data failed\n");
|
| 336 |
return -2;
|
| 337 |
}
|
| 338 |
|
| 339 |
if ((row = mysql_fetch_row(rs)))
|
| 340 |
{
|
| 341 |
last_article_op_log_mid = atoi(row[0]);
|
| 342 |
}
|
| 343 |
|
| 344 |
mysql_free_result(rs);
|
| 345 |
|
| 346 |
mysql_close(db);
|
| 347 |
|
| 348 |
return last_article_op_log_mid;
|
| 349 |
}
|
| 350 |
|
| 351 |
int apply_article_op_log_from_db(void)
|
| 352 |
{
|
| 353 |
MYSQL *db;
|
| 354 |
MYSQL_RES *rs, *rs2;
|
| 355 |
MYSQL_ROW row, row2;
|
| 356 |
char sql[SQL_BUFFER_LEN];
|
| 357 |
ARTICLE *p_article;
|
| 358 |
SECTION_LIST *p_section = NULL;
|
| 359 |
SECTION_LIST *p_section_dest;
|
| 360 |
int32_t last_sid = 0;
|
| 361 |
int32_t sid_dest;
|
| 362 |
int ret = 0;
|
| 363 |
|
| 364 |
db = db_open();
|
| 365 |
if (db == NULL)
|
| 366 |
{
|
| 367 |
log_error("db_open() error: %s\n", mysql_error(db));
|
| 368 |
return -3;
|
| 369 |
}
|
| 370 |
|
| 371 |
snprintf(sql, sizeof(sql),
|
| 372 |
"SELECT MID, AID, type FROM bbs_article_op "
|
| 373 |
"WHERE MID > %d AND type NOT IN ('A', 'M') ORDER BY MID",
|
| 374 |
last_article_op_log_mid);
|
| 375 |
|
| 376 |
if (mysql_query(db, sql) != 0)
|
| 377 |
{
|
| 378 |
log_error("Query article log error: %s\n", mysql_error(db));
|
| 379 |
return -3;
|
| 380 |
}
|
| 381 |
if ((rs = mysql_store_result(db)) == NULL)
|
| 382 |
{
|
| 383 |
log_error("Get article log data failed\n");
|
| 384 |
return -3;
|
| 385 |
}
|
| 386 |
|
| 387 |
while ((row = mysql_fetch_row(rs)))
|
| 388 |
{
|
| 389 |
p_article = article_block_find_by_aid(atoi(row[1]));
|
| 390 |
if (p_article == NULL) // related article has not been appended yet
|
| 391 |
{
|
| 392 |
ret = -2;
|
| 393 |
break;
|
| 394 |
}
|
| 395 |
|
| 396 |
// release lock of last section if different from current one
|
| 397 |
if (p_article->sid != last_sid && last_sid != 0)
|
| 398 |
{
|
| 399 |
if ((ret = section_list_rw_unlock(p_section)) < 0)
|
| 400 |
{
|
| 401 |
log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
|
| 402 |
break;
|
| 403 |
}
|
| 404 |
}
|
| 405 |
|
| 406 |
if ((p_section = section_list_find_by_sid(p_article->sid)) == NULL)
|
| 407 |
{
|
| 408 |
log_error("section_list_find_by_sid(%d) error: unknown section, try reloading section config\n", p_article->sid);
|
| 409 |
ret = ERR_UNKNOWN_SECTION; // Unknown section found
|
| 410 |
break;
|
| 411 |
}
|
| 412 |
|
| 413 |
// acquire lock of current section if different from last one
|
| 414 |
if (p_article->sid != last_sid)
|
| 415 |
{
|
| 416 |
if ((ret = section_list_rw_lock(p_section)) < 0)
|
| 417 |
{
|
| 418 |
log_error("section_list_rw_lock(sid = 0) error\n");
|
| 419 |
break;
|
| 420 |
}
|
| 421 |
}
|
| 422 |
|
| 423 |
last_sid = p_article->sid;
|
| 424 |
|
| 425 |
switch (row[2][0])
|
| 426 |
{
|
| 427 |
case 'A': // Add article
|
| 428 |
log_error("Operation type=A should not be found\n");
|
| 429 |
break;
|
| 430 |
case 'D': // Delete article
|
| 431 |
case 'X': // Delete article by Admin
|
| 432 |
p_article->visible = 0;
|
| 433 |
if (p_article->tid == 0)
|
| 434 |
{
|
| 435 |
// Set articles in the topic to be invisible
|
| 436 |
do
|
| 437 |
{
|
| 438 |
p_article = p_article->p_topic_next;
|
| 439 |
p_article->visible = 0;
|
| 440 |
} while (p_article->tid != 0);
|
| 441 |
}
|
| 442 |
break;
|
| 443 |
case 'S': // Restore article
|
| 444 |
p_article->visible = 1;
|
| 445 |
break;
|
| 446 |
case 'L': // Lock article
|
| 447 |
p_article->lock = 1;
|
| 448 |
break;
|
| 449 |
case 'U': // Unlock article
|
| 450 |
p_article->lock = 0;
|
| 451 |
break;
|
| 452 |
case 'M': // Modify article
|
| 453 |
log_error("Operation type=M should not be found\n");
|
| 454 |
break;
|
| 455 |
case 'T': // Move article
|
| 456 |
snprintf(sql, sizeof(sql),
|
| 457 |
"SELECT SID FROM bbs WHERE AID = %d",
|
| 458 |
p_article->aid);
|
| 459 |
|
| 460 |
if (mysql_query(db, sql) != 0)
|
| 461 |
{
|
| 462 |
log_error("Query article error: %s\n", mysql_error(db));
|
| 463 |
ret = -3;
|
| 464 |
break;
|
| 465 |
}
|
| 466 |
if ((rs2 = mysql_store_result(db)) == NULL)
|
| 467 |
{
|
| 468 |
log_error("Get article data failed\n");
|
| 469 |
ret = -3;
|
| 470 |
break;
|
| 471 |
}
|
| 472 |
if ((row2 = mysql_fetch_row(rs2)))
|
| 473 |
{
|
| 474 |
sid_dest = atoi(row2[0]);
|
| 475 |
}
|
| 476 |
else
|
| 477 |
{
|
| 478 |
sid_dest = 0;
|
| 479 |
ret = -4;
|
| 480 |
}
|
| 481 |
mysql_free_result(rs2);
|
| 482 |
|
| 483 |
if (sid_dest > 0 && sid_dest != p_article->sid)
|
| 484 |
{
|
| 485 |
p_section_dest = section_list_find_by_sid(sid_dest);
|
| 486 |
if (p_section_dest == NULL)
|
| 487 |
{
|
| 488 |
ret = ERR_UNKNOWN_SECTION;
|
| 489 |
break;
|
| 490 |
}
|
| 491 |
// Move topic
|
| 492 |
if ((ret = section_list_move_topic(p_section, p_section_dest, p_article->aid)) < 0)
|
| 493 |
{
|
| 494 |
break;
|
| 495 |
}
|
| 496 |
}
|
| 497 |
break;
|
| 498 |
case 'E': // Set article as excerption
|
| 499 |
p_article->excerption = 1;
|
| 500 |
break;
|
| 501 |
case 'O': // Unset article as excerption
|
| 502 |
p_article->excerption = 0;
|
| 503 |
break;
|
| 504 |
case 'F': // Set article on top
|
| 505 |
p_article->ontop = 1;
|
| 506 |
break;
|
| 507 |
case 'V': // Unset article on top
|
| 508 |
p_article->ontop = 0;
|
| 509 |
break;
|
| 510 |
case 'Z': // Set article as trnasship
|
| 511 |
p_article->transship = 1;
|
| 512 |
break;
|
| 513 |
default:
|
| 514 |
// log_error("Operation type=%s unknown, mid=%s\n", row[2], row[0]);
|
| 515 |
break;
|
| 516 |
}
|
| 517 |
|
| 518 |
if (ret < 0)
|
| 519 |
{
|
| 520 |
break;
|
| 521 |
}
|
| 522 |
|
| 523 |
// Update MID with last successfully proceeded article_op_log
|
| 524 |
last_article_op_log_mid = atoi(row[0]);
|
| 525 |
}
|
| 526 |
|
| 527 |
// release lock of last section
|
| 528 |
if (last_sid != 0)
|
| 529 |
{
|
| 530 |
if ((ret = section_list_rw_unlock(p_section)) < 0)
|
| 531 |
{
|
| 532 |
log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
|
| 533 |
}
|
| 534 |
}
|
| 535 |
|
| 536 |
mysql_free_result(rs);
|
| 537 |
|
| 538 |
mysql_close(db);
|
| 539 |
|
| 540 |
return ret;
|
| 541 |
}
|
| 542 |
|
| 543 |
int section_list_loader_launch(void)
|
| 544 |
{
|
| 545 |
int pid;
|
| 546 |
int ret;
|
| 547 |
int32_t last_aid;
|
| 548 |
int article_count;
|
| 549 |
int load_count;
|
| 550 |
int last_mid;
|
| 551 |
int i;
|
| 552 |
|
| 553 |
if (section_list_loader_pid != 0)
|
| 554 |
{
|
| 555 |
log_error("section_list_loader already running, pid = %d\n", section_list_loader_pid);
|
| 556 |
return -2;
|
| 557 |
}
|
| 558 |
|
| 559 |
pid = fork();
|
| 560 |
|
| 561 |
if (pid > 0) // Parent process
|
| 562 |
{
|
| 563 |
SYS_child_process_count++;
|
| 564 |
section_list_loader_pid = pid;
|
| 565 |
log_std("Section list loader process (%d) start\n", pid);
|
| 566 |
return 0;
|
| 567 |
}
|
| 568 |
else if (pid < 0) // Error
|
| 569 |
{
|
| 570 |
log_error("fork() error (%d)\n", errno);
|
| 571 |
return -1;
|
| 572 |
}
|
| 573 |
|
| 574 |
// Child process
|
| 575 |
SYS_child_process_count = 0;
|
| 576 |
|
| 577 |
// Detach menu in shared memory
|
| 578 |
detach_menu_shm(p_bbs_menu);
|
| 579 |
free(p_bbs_menu);
|
| 580 |
p_bbs_menu = NULL;
|
| 581 |
|
| 582 |
// Do section data loader periodically
|
| 583 |
while (!SYS_server_exit)
|
| 584 |
{
|
| 585 |
if (SYS_section_list_reload)
|
| 586 |
{
|
| 587 |
SYS_section_list_reload = 0;
|
| 588 |
|
| 589 |
// Load section config
|
| 590 |
if (load_section_config_from_db() < 0)
|
| 591 |
{
|
| 592 |
log_error("load_section_config_from_db() error\n");
|
| 593 |
}
|
| 594 |
else
|
| 595 |
{
|
| 596 |
log_error("Reload section config successfully\n");
|
| 597 |
}
|
| 598 |
}
|
| 599 |
|
| 600 |
// Load section articles
|
| 601 |
last_aid = article_block_last_aid();
|
| 602 |
article_count = article_block_article_count();
|
| 603 |
|
| 604 |
if ((ret = append_articles_from_db(last_aid + 1, 0)) < 0)
|
| 605 |
{
|
| 606 |
log_error("append_articles_from_db(%d, 0) error\n", last_aid + 1);
|
| 607 |
|
| 608 |
if (ret == ERR_UNKNOWN_SECTION)
|
| 609 |
{
|
| 610 |
SYS_section_list_reload = 1; // Force reload section_list
|
| 611 |
}
|
| 612 |
}
|
| 613 |
|
| 614 |
load_count = article_block_article_count() - article_count;
|
| 615 |
|
| 616 |
if (load_count > 0)
|
| 617 |
{
|
| 618 |
log_std("Incrementally load %d articles, last_aid = %d\n", load_count, article_block_last_aid());
|
| 619 |
}
|
| 620 |
|
| 621 |
if (SYS_section_list_reload)
|
| 622 |
{
|
| 623 |
continue;
|
| 624 |
}
|
| 625 |
|
| 626 |
// Load article_op log
|
| 627 |
last_mid = last_article_op_log_mid;
|
| 628 |
|
| 629 |
if ((ret = apply_article_op_log_from_db()) < 0)
|
| 630 |
{
|
| 631 |
log_error("apply_article_op_log_from_db() error\n");
|
| 632 |
|
| 633 |
if (ret == ERR_UNKNOWN_SECTION)
|
| 634 |
{
|
| 635 |
SYS_section_list_reload = 1; // Force reload section_list
|
| 636 |
}
|
| 637 |
}
|
| 638 |
|
| 639 |
if (last_article_op_log_mid > last_mid)
|
| 640 |
{
|
| 641 |
log_std("Proceeded %d article logs, last_mid = %d\n", last_article_op_log_mid - last_mid, last_article_op_log_mid);
|
| 642 |
}
|
| 643 |
|
| 644 |
if (SYS_section_list_reload)
|
| 645 |
{
|
| 646 |
continue;
|
| 647 |
}
|
| 648 |
|
| 649 |
for (i = 0; i < SECTION_LIST_LOAD_INTERVAL && !SYS_server_exit && !SYS_section_list_reload; i++)
|
| 650 |
{
|
| 651 |
sleep(1);
|
| 652 |
}
|
| 653 |
}
|
| 654 |
|
| 655 |
// Child process exit
|
| 656 |
|
| 657 |
// Detach data pools shm
|
| 658 |
detach_section_list_shm();
|
| 659 |
detach_article_block_shm();
|
| 660 |
detach_trie_dict_shm();
|
| 661 |
|
| 662 |
log_std("Section list loader process exit normally\n");
|
| 663 |
log_end();
|
| 664 |
|
| 665 |
section_list_loader_pid = 0;
|
| 666 |
|
| 667 |
_exit(0);
|
| 668 |
|
| 669 |
return 0;
|
| 670 |
}
|
| 671 |
|
| 672 |
int section_list_loader_reload(void)
|
| 673 |
{
|
| 674 |
if (section_list_loader_pid == 0)
|
| 675 |
{
|
| 676 |
log_error("section_list_loader not running\n");
|
| 677 |
return -2;
|
| 678 |
}
|
| 679 |
|
| 680 |
if (kill(section_list_loader_pid, SIGHUP) < 0)
|
| 681 |
{
|
| 682 |
log_error("Send SIGTERM signal failed (%d)\n", errno);
|
| 683 |
return -1;
|
| 684 |
}
|
| 685 |
|
| 686 |
return 0;
|
| 687 |
}
|
Parent Directory
| 
Revision Log