| 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 _POSIX_C_SOURCE 200809L
|
| 30 |
#include <string.h>
|
| 31 |
|
| 32 |
#define SECTION_LIST_LOAD_INTERVAL 10 // second
|
| 33 |
|
| 34 |
int section_list_loader_pid;
|
| 35 |
int last_article_op_log_mid;
|
| 36 |
|
| 37 |
int load_section_config_from_db(void)
|
| 38 |
{
|
| 39 |
MYSQL *db;
|
| 40 |
MYSQL_RES *rs, *rs2;
|
| 41 |
MYSQL_ROW row, row2;
|
| 42 |
char sql[SQL_BUFFER_LEN];
|
| 43 |
int32_t sid;
|
| 44 |
char master_list[(BBS_username_max_len + 1) * 3 + 1];
|
| 45 |
SECTION_LIST *p_section;
|
| 46 |
int ret;
|
| 47 |
|
| 48 |
db = db_open();
|
| 49 |
if (db == NULL)
|
| 50 |
{
|
| 51 |
log_error("db_open() error: %s\n", mysql_error(db));
|
| 52 |
return -2;
|
| 53 |
}
|
| 54 |
|
| 55 |
snprintf(sql, sizeof(sql),
|
| 56 |
"SELECT section_config.SID, sname, section_config.title, section_config.CID, "
|
| 57 |
"read_user_level, write_user_level, section_config.enable * section_class.enable AS enable "
|
| 58 |
"FROM section_config INNER JOIN section_class ON section_config.CID = section_class.CID "
|
| 59 |
"ORDER BY section_config.SID");
|
| 60 |
|
| 61 |
if (mysql_query(db, sql) != 0)
|
| 62 |
{
|
| 63 |
log_error("Query section_list error: %s\n", mysql_error(db));
|
| 64 |
return -3;
|
| 65 |
}
|
| 66 |
if ((rs = mysql_store_result(db)) == NULL)
|
| 67 |
{
|
| 68 |
log_error("Get section_list data failed\n");
|
| 69 |
return -3;
|
| 70 |
}
|
| 71 |
|
| 72 |
ret = 0;
|
| 73 |
while ((row = mysql_fetch_row(rs)))
|
| 74 |
{
|
| 75 |
sid = atoi(row[0]);
|
| 76 |
|
| 77 |
// Query section master
|
| 78 |
snprintf(sql, sizeof(sql),
|
| 79 |
"SELECT username FROM section_master "
|
| 80 |
"INNER JOIN user_list ON section_master.UID = user_list.UID "
|
| 81 |
"WHERE SID = %d AND section_master.enable AND (NOW() BETWEEN begin_dt AND end_dt) "
|
| 82 |
"ORDER BY major DESC, begin_dt ASC LIMIT 3",
|
| 83 |
sid);
|
| 84 |
|
| 85 |
if (mysql_query(db, sql) != 0)
|
| 86 |
{
|
| 87 |
log_error("Query section_master error: %s\n", mysql_error(db));
|
| 88 |
ret = -3;
|
| 89 |
break;
|
| 90 |
}
|
| 91 |
if ((rs2 = mysql_store_result(db)) == NULL)
|
| 92 |
{
|
| 93 |
log_error("Get section_master data failed\n");
|
| 94 |
ret = -3;
|
| 95 |
break;
|
| 96 |
}
|
| 97 |
|
| 98 |
master_list[0] = '\0';
|
| 99 |
while ((row2 = mysql_fetch_row(rs2)))
|
| 100 |
{
|
| 101 |
strncat(master_list, row2[0], sizeof(master_list) - 1 - strnlen(master_list, sizeof(master_list)));
|
| 102 |
strncat(master_list, " ", sizeof(master_list) - 1 - strnlen(master_list, sizeof(master_list)));
|
| 103 |
}
|
| 104 |
mysql_free_result(rs2);
|
| 105 |
|
| 106 |
p_section = section_list_find_by_sid(sid);
|
| 107 |
|
| 108 |
if (p_section == NULL)
|
| 109 |
{
|
| 110 |
p_section = section_list_create(sid, row[1], row[2], master_list);
|
| 111 |
if (p_section == NULL)
|
| 112 |
{
|
| 113 |
log_error("section_list_create() error: load new section sid = %d sname = %s\n", sid, row[1]);
|
| 114 |
ret = -4;
|
| 115 |
break;
|
| 116 |
}
|
| 117 |
|
| 118 |
// acquire rw lock
|
| 119 |
ret = section_list_rw_lock(p_section);
|
| 120 |
if (ret < 0)
|
| 121 |
{
|
| 122 |
break;
|
| 123 |
}
|
| 124 |
}
|
| 125 |
else
|
| 126 |
{
|
| 127 |
// acquire rw lock
|
| 128 |
ret = section_list_rw_lock(p_section);
|
| 129 |
if (ret < 0)
|
| 130 |
{
|
| 131 |
break;
|
| 132 |
}
|
| 133 |
|
| 134 |
strncpy(p_section->sname, row[1], sizeof(p_section->sname) - 1);
|
| 135 |
p_section->sname[sizeof(p_section->sname) - 1] = '\0';
|
| 136 |
strncpy(p_section->stitle, row[1], sizeof(p_section->stitle) - 1);
|
| 137 |
p_section->stitle[sizeof(p_section->stitle) - 1] = '\0';
|
| 138 |
strncpy(p_section->master_list, master_list, sizeof(p_section->master_list) - 1);
|
| 139 |
p_section->master_list[sizeof(p_section->master_list) - 1] = '\0';
|
| 140 |
}
|
| 141 |
|
| 142 |
p_section->class_id = atoi(row[3]);
|
| 143 |
p_section->read_user_level = atoi(row[4]);
|
| 144 |
p_section->write_user_level = atoi(row[5]);
|
| 145 |
p_section->enable = (int8_t)atoi(row[6]);
|
| 146 |
|
| 147 |
// release rw lock
|
| 148 |
ret = section_list_rw_unlock(p_section);
|
| 149 |
if (ret < 0)
|
| 150 |
{
|
| 151 |
break;
|
| 152 |
}
|
| 153 |
}
|
| 154 |
mysql_free_result(rs);
|
| 155 |
|
| 156 |
mysql_close(db);
|
| 157 |
|
| 158 |
return ret;
|
| 159 |
}
|
| 160 |
|
| 161 |
int append_articles_from_db(int32_t start_aid, int global_lock, int article_count_limit)
|
| 162 |
{
|
| 163 |
MYSQL *db;
|
| 164 |
MYSQL_RES *rs;
|
| 165 |
MYSQL_ROW row;
|
| 166 |
char sql[SQL_BUFFER_LEN];
|
| 167 |
ARTICLE article;
|
| 168 |
ARTICLE *p_topic;
|
| 169 |
SECTION_LIST *p_section = NULL;
|
| 170 |
int32_t last_sid = 0;
|
| 171 |
int article_count = 0;
|
| 172 |
int ret = 0;
|
| 173 |
int i;
|
| 174 |
|
| 175 |
db = db_open();
|
| 176 |
if (db == NULL)
|
| 177 |
{
|
| 178 |
log_error("db_open() error: %s\n", mysql_error(db));
|
| 179 |
return -2;
|
| 180 |
}
|
| 181 |
|
| 182 |
snprintf(sql, sizeof(sql),
|
| 183 |
"SELECT AID, TID, SID, CID, UID, visible, excerption, ontop, `lock`, "
|
| 184 |
"transship, username, nickname, title, UNIX_TIMESTAMP(sub_dt) AS sub_dt "
|
| 185 |
"FROM bbs WHERE AID >= %d ORDER BY AID LIMIT %d",
|
| 186 |
start_aid, article_count_limit);
|
| 187 |
|
| 188 |
if (mysql_query(db, sql) != 0)
|
| 189 |
{
|
| 190 |
log_error("Query article list error: %s\n", mysql_error(db));
|
| 191 |
return -3;
|
| 192 |
}
|
| 193 |
if ((rs = mysql_store_result(db)) == NULL)
|
| 194 |
{
|
| 195 |
log_error("Get article list data failed\n");
|
| 196 |
return -3;
|
| 197 |
}
|
| 198 |
|
| 199 |
// acquire global lock
|
| 200 |
if (global_lock)
|
| 201 |
{
|
| 202 |
if ((ret = section_list_rw_lock(NULL)) < 0)
|
| 203 |
{
|
| 204 |
log_error("section_list_rw_lock(sid = 0) error\n");
|
| 205 |
goto cleanup;
|
| 206 |
}
|
| 207 |
}
|
| 208 |
|
| 209 |
while ((row = mysql_fetch_row(rs)))
|
| 210 |
{
|
| 211 |
bzero(&article, sizeof(ARTICLE));
|
| 212 |
|
| 213 |
// copy data of article
|
| 214 |
i = 0;
|
| 215 |
|
| 216 |
article.aid = atoi(row[i++]);
|
| 217 |
article.tid = atoi(row[i++]);
|
| 218 |
article.sid = atoi(row[i++]);
|
| 219 |
article.cid = atoi(row[i++]);
|
| 220 |
article.uid = atoi(row[i++]);
|
| 221 |
article.visible = (int8_t)atoi(row[i++]);
|
| 222 |
article.excerption = (int8_t)atoi(row[i++]);
|
| 223 |
article.ontop = (int8_t)atoi(row[i++]);
|
| 224 |
article.lock = (int8_t)atoi(row[i++]);
|
| 225 |
article.transship = (int8_t)atoi(row[i++]);
|
| 226 |
|
| 227 |
strncpy(article.username, row[i++], sizeof(article.username) - 1);
|
| 228 |
article.username[sizeof(article.username) - 1] = '\0';
|
| 229 |
strncpy(article.nickname, row[i++], sizeof(article.nickname) - 1);
|
| 230 |
article.nickname[sizeof(article.nickname) - 1] = '\0';
|
| 231 |
strncpy(article.title, row[i++], sizeof(article.title) - 1);
|
| 232 |
article.title[sizeof(article.title) - 1] = '\0';
|
| 233 |
|
| 234 |
article.sub_dt = atol(row[i++]);
|
| 235 |
|
| 236 |
// release lock of last section if different from current one
|
| 237 |
if (!global_lock && article.sid != last_sid && last_sid != 0)
|
| 238 |
{
|
| 239 |
if ((ret = section_list_rw_unlock(p_section)) < 0)
|
| 240 |
{
|
| 241 |
log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
|
| 242 |
break;
|
| 243 |
}
|
| 244 |
}
|
| 245 |
|
| 246 |
if ((p_section = section_list_find_by_sid(article.sid)) == NULL)
|
| 247 |
{
|
| 248 |
log_error("section_list_find_by_sid(%d) error: unknown section, try reloading section config\n", article.sid);
|
| 249 |
ret = ERR_UNKNOWN_SECTION; // Unknown section found
|
| 250 |
break;
|
| 251 |
}
|
| 252 |
|
| 253 |
if (article.visible != 0 && article.tid != 0)
|
| 254 |
{
|
| 255 |
// Check if topic article is visible
|
| 256 |
p_topic = article_block_find_by_aid(article.tid);
|
| 257 |
if (p_topic == NULL || p_topic->visible == 0)
|
| 258 |
{
|
| 259 |
// log_error("Set article (aid = %d) as invisible due to invisible or non-existing topic head\n", article.aid);
|
| 260 |
article.tid = 0;
|
| 261 |
article.visible = 0;
|
| 262 |
}
|
| 263 |
}
|
| 264 |
|
| 265 |
// acquire lock of current section if different from last one
|
| 266 |
if (!global_lock && article.sid != last_sid)
|
| 267 |
{
|
| 268 |
if ((ret = section_list_rw_lock(p_section)) < 0)
|
| 269 |
{
|
| 270 |
log_error("section_list_rw_lock(sid = 0) error\n");
|
| 271 |
break;
|
| 272 |
}
|
| 273 |
}
|
| 274 |
|
| 275 |
// append article to section list
|
| 276 |
last_sid = article.sid;
|
| 277 |
|
| 278 |
if (section_list_append_article(p_section, &article) < 0)
|
| 279 |
{
|
| 280 |
log_error("section_list_append_article(sid = %d, aid = %d) error\n",
|
| 281 |
p_section->sid, article.aid);
|
| 282 |
ret = -3;
|
| 283 |
break;
|
| 284 |
}
|
| 285 |
|
| 286 |
article_count++;
|
| 287 |
|
| 288 |
// TODO: generate content cache
|
| 289 |
}
|
| 290 |
|
| 291 |
// release lock of last section
|
| 292 |
if (!global_lock && last_sid != 0)
|
| 293 |
{
|
| 294 |
if ((ret = section_list_rw_unlock(p_section)) < 0)
|
| 295 |
{
|
| 296 |
log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
|
| 297 |
}
|
| 298 |
}
|
| 299 |
|
| 300 |
// release global lock
|
| 301 |
if (global_lock)
|
| 302 |
{
|
| 303 |
if ((ret = section_list_rw_unlock(NULL)) < 0)
|
| 304 |
{
|
| 305 |
log_error("section_list_rw_unlock(sid = 0) error\n");
|
| 306 |
}
|
| 307 |
}
|
| 308 |
|
| 309 |
cleanup:
|
| 310 |
mysql_free_result(rs);
|
| 311 |
|
| 312 |
mysql_close(db);
|
| 313 |
|
| 314 |
return (ret < 0 ? ret : article_count);
|
| 315 |
}
|
| 316 |
|
| 317 |
int set_last_article_op_log_from_db(void)
|
| 318 |
{
|
| 319 |
MYSQL *db;
|
| 320 |
MYSQL_RES *rs;
|
| 321 |
MYSQL_ROW row;
|
| 322 |
char sql[SQL_BUFFER_LEN];
|
| 323 |
|
| 324 |
db = db_open();
|
| 325 |
if (db == NULL)
|
| 326 |
{
|
| 327 |
log_error("db_open() error: %s\n", mysql_error(db));
|
| 328 |
return -1;
|
| 329 |
}
|
| 330 |
|
| 331 |
snprintf(sql, sizeof(sql),
|
| 332 |
"SELECT MID FROM bbs_article_op ORDER BY MID DESC LIMIT 1");
|
| 333 |
|
| 334 |
if (mysql_query(db, sql) != 0)
|
| 335 |
{
|
| 336 |
log_error("Query article op error: %s\n", mysql_error(db));
|
| 337 |
return -2;
|
| 338 |
}
|
| 339 |
if ((rs = mysql_store_result(db)) == NULL)
|
| 340 |
{
|
| 341 |
log_error("Get article op data failed\n");
|
| 342 |
return -2;
|
| 343 |
}
|
| 344 |
|
| 345 |
if ((row = mysql_fetch_row(rs)))
|
| 346 |
{
|
| 347 |
last_article_op_log_mid = atoi(row[0]);
|
| 348 |
}
|
| 349 |
|
| 350 |
mysql_free_result(rs);
|
| 351 |
|
| 352 |
mysql_close(db);
|
| 353 |
|
| 354 |
return last_article_op_log_mid;
|
| 355 |
}
|
| 356 |
|
| 357 |
int apply_article_op_log_from_db(int op_count_limit)
|
| 358 |
{
|
| 359 |
MYSQL *db;
|
| 360 |
MYSQL_RES *rs, *rs2;
|
| 361 |
MYSQL_ROW row, row2;
|
| 362 |
char sql[SQL_BUFFER_LEN];
|
| 363 |
ARTICLE *p_article;
|
| 364 |
SECTION_LIST *p_section = NULL;
|
| 365 |
SECTION_LIST *p_section_dest;
|
| 366 |
int32_t last_sid = 0;
|
| 367 |
int32_t sid_dest;
|
| 368 |
int op_count = 0;
|
| 369 |
int ret = 0;
|
| 370 |
|
| 371 |
db = db_open();
|
| 372 |
if (db == NULL)
|
| 373 |
{
|
| 374 |
log_error("db_open() error: %s\n", mysql_error(db));
|
| 375 |
return -3;
|
| 376 |
}
|
| 377 |
|
| 378 |
snprintf(sql, sizeof(sql),
|
| 379 |
"SELECT MID, AID, type FROM bbs_article_op "
|
| 380 |
"WHERE MID > %d AND type NOT IN ('A') "
|
| 381 |
"ORDER BY MID LIMIT %d",
|
| 382 |
last_article_op_log_mid, op_count_limit);
|
| 383 |
|
| 384 |
if (mysql_query(db, sql) != 0)
|
| 385 |
{
|
| 386 |
log_error("Query article log error: %s\n", mysql_error(db));
|
| 387 |
return -3;
|
| 388 |
}
|
| 389 |
if ((rs = mysql_store_result(db)) == NULL)
|
| 390 |
{
|
| 391 |
log_error("Get article log data failed\n");
|
| 392 |
return -3;
|
| 393 |
}
|
| 394 |
|
| 395 |
while ((row = mysql_fetch_row(rs)))
|
| 396 |
{
|
| 397 |
p_article = article_block_find_by_aid(atoi(row[1]));
|
| 398 |
if (p_article == NULL) // related article has not been appended yet
|
| 399 |
{
|
| 400 |
ret = -2;
|
| 401 |
break;
|
| 402 |
}
|
| 403 |
|
| 404 |
// release lock of last section if different from current one
|
| 405 |
if (p_article->sid != last_sid && last_sid != 0)
|
| 406 |
{
|
| 407 |
if ((ret = section_list_rw_unlock(p_section)) < 0)
|
| 408 |
{
|
| 409 |
log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
|
| 410 |
break;
|
| 411 |
}
|
| 412 |
}
|
| 413 |
|
| 414 |
if ((p_section = section_list_find_by_sid(p_article->sid)) == NULL)
|
| 415 |
{
|
| 416 |
log_error("section_list_find_by_sid(%d) error: unknown section, try reloading section config\n", p_article->sid);
|
| 417 |
ret = ERR_UNKNOWN_SECTION; // Unknown section found
|
| 418 |
break;
|
| 419 |
}
|
| 420 |
|
| 421 |
// acquire lock of current section if different from last one
|
| 422 |
if (p_article->sid != last_sid)
|
| 423 |
{
|
| 424 |
if ((ret = section_list_rw_lock(p_section)) < 0)
|
| 425 |
{
|
| 426 |
log_error("section_list_rw_lock(sid = 0) error\n");
|
| 427 |
break;
|
| 428 |
}
|
| 429 |
}
|
| 430 |
|
| 431 |
last_sid = p_article->sid;
|
| 432 |
|
| 433 |
switch (row[2][0])
|
| 434 |
{
|
| 435 |
case 'A': // Add article
|
| 436 |
log_error("Operation type=A should not be found\n");
|
| 437 |
break;
|
| 438 |
case 'D': // Delete article
|
| 439 |
case 'X': // Delete article by Admin
|
| 440 |
p_article->visible = 0;
|
| 441 |
if (p_article->tid == 0)
|
| 442 |
{
|
| 443 |
// Set articles in the topic to be invisible
|
| 444 |
do
|
| 445 |
{
|
| 446 |
p_article = p_article->p_topic_next;
|
| 447 |
p_article->visible = 0;
|
| 448 |
} while (p_article->tid != 0);
|
| 449 |
}
|
| 450 |
break;
|
| 451 |
case 'S': // Restore article
|
| 452 |
p_article->visible = 1;
|
| 453 |
break;
|
| 454 |
case 'L': // Lock article
|
| 455 |
p_article->lock = 1;
|
| 456 |
break;
|
| 457 |
case 'U': // Unlock article
|
| 458 |
p_article->lock = 0;
|
| 459 |
break;
|
| 460 |
case 'M': // Modify article
|
| 461 |
snprintf(sql, sizeof(sql),
|
| 462 |
"SELECT CID FROM bbs WHERE AID = %d",
|
| 463 |
p_article->aid);
|
| 464 |
|
| 465 |
if (mysql_query(db, sql) != 0)
|
| 466 |
{
|
| 467 |
log_error("Query article error: %s\n", mysql_error(db));
|
| 468 |
ret = -3;
|
| 469 |
break;
|
| 470 |
}
|
| 471 |
if ((rs2 = mysql_store_result(db)) == NULL)
|
| 472 |
{
|
| 473 |
log_error("Get article data failed\n");
|
| 474 |
ret = -3;
|
| 475 |
break;
|
| 476 |
}
|
| 477 |
if ((row2 = mysql_fetch_row(rs2)))
|
| 478 |
{
|
| 479 |
p_article->cid = atoi(row2[0]);
|
| 480 |
}
|
| 481 |
else
|
| 482 |
{
|
| 483 |
p_article->cid = 0;
|
| 484 |
ret = -4;
|
| 485 |
}
|
| 486 |
mysql_free_result(rs2);
|
| 487 |
|
| 488 |
if (p_article->cid > 0)
|
| 489 |
{
|
| 490 |
// TODO: generate content cache
|
| 491 |
}
|
| 492 |
|
| 493 |
break;
|
| 494 |
case 'T': // Move article
|
| 495 |
snprintf(sql, sizeof(sql),
|
| 496 |
"SELECT SID FROM bbs WHERE AID = %d",
|
| 497 |
p_article->aid);
|
| 498 |
|
| 499 |
if (mysql_query(db, sql) != 0)
|
| 500 |
{
|
| 501 |
log_error("Query article error: %s\n", mysql_error(db));
|
| 502 |
ret = -3;
|
| 503 |
break;
|
| 504 |
}
|
| 505 |
if ((rs2 = mysql_store_result(db)) == NULL)
|
| 506 |
{
|
| 507 |
log_error("Get article data failed\n");
|
| 508 |
ret = -3;
|
| 509 |
break;
|
| 510 |
}
|
| 511 |
if ((row2 = mysql_fetch_row(rs2)))
|
| 512 |
{
|
| 513 |
sid_dest = atoi(row2[0]);
|
| 514 |
}
|
| 515 |
else
|
| 516 |
{
|
| 517 |
sid_dest = 0;
|
| 518 |
ret = -4;
|
| 519 |
}
|
| 520 |
mysql_free_result(rs2);
|
| 521 |
|
| 522 |
if (sid_dest > 0 && sid_dest != p_article->sid)
|
| 523 |
{
|
| 524 |
p_section_dest = section_list_find_by_sid(sid_dest);
|
| 525 |
if (p_section_dest == NULL)
|
| 526 |
{
|
| 527 |
ret = ERR_UNKNOWN_SECTION;
|
| 528 |
break;
|
| 529 |
}
|
| 530 |
// acquire lock of dest section
|
| 531 |
if ((ret = section_list_rw_lock(p_section_dest)) < 0)
|
| 532 |
{
|
| 533 |
log_error("section_list_rw_lock(sid = %d) error\n", p_section_dest);
|
| 534 |
break;
|
| 535 |
}
|
| 536 |
// Move topic
|
| 537 |
if ((ret = section_list_move_topic(p_section, p_section_dest, p_article->aid)) < 0)
|
| 538 |
{
|
| 539 |
log_error("section_list_move_topic(src_sid=%d, dest_sid=%d, aid=%d) error (%d), retry in the next loop\n",
|
| 540 |
p_section->sid, p_section_dest->sid, p_article->aid, ret);
|
| 541 |
}
|
| 542 |
// release lock of dest section
|
| 543 |
if (section_list_rw_unlock(p_section_dest) < 0)
|
| 544 |
{
|
| 545 |
log_error("section_list_rw_unlock(sid = %d) error\n", p_section_dest);
|
| 546 |
ret = -1;
|
| 547 |
}
|
| 548 |
}
|
| 549 |
break;
|
| 550 |
case 'E': // Set article as excerption
|
| 551 |
p_article->excerption = 1;
|
| 552 |
break;
|
| 553 |
case 'O': // Unset article as excerption
|
| 554 |
p_article->excerption = 0;
|
| 555 |
break;
|
| 556 |
case 'F': // Set article on top
|
| 557 |
p_article->ontop = 1;
|
| 558 |
break;
|
| 559 |
case 'V': // Unset article on top
|
| 560 |
p_article->ontop = 0;
|
| 561 |
break;
|
| 562 |
case 'Z': // Set article as trnasship
|
| 563 |
p_article->transship = 1;
|
| 564 |
break;
|
| 565 |
default:
|
| 566 |
// log_error("Operation type=%s unknown, mid=%s\n", row[2], row[0]);
|
| 567 |
break;
|
| 568 |
}
|
| 569 |
|
| 570 |
if (ret < 0)
|
| 571 |
{
|
| 572 |
break;
|
| 573 |
}
|
| 574 |
|
| 575 |
// Update MID with last successfully proceeded article_op_log
|
| 576 |
last_article_op_log_mid = atoi(row[0]);
|
| 577 |
|
| 578 |
op_count++;
|
| 579 |
}
|
| 580 |
|
| 581 |
// release lock of last section
|
| 582 |
if (last_sid != 0)
|
| 583 |
{
|
| 584 |
if ((ret = section_list_rw_unlock(p_section)) < 0)
|
| 585 |
{
|
| 586 |
log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
|
| 587 |
}
|
| 588 |
}
|
| 589 |
|
| 590 |
mysql_free_result(rs);
|
| 591 |
|
| 592 |
mysql_close(db);
|
| 593 |
|
| 594 |
return (ret < 0 ? ret : op_count);
|
| 595 |
}
|
| 596 |
|
| 597 |
int section_list_loader_launch(void)
|
| 598 |
{
|
| 599 |
int pid;
|
| 600 |
int ret;
|
| 601 |
int32_t last_aid;
|
| 602 |
int article_count;
|
| 603 |
int load_count;
|
| 604 |
int last_mid;
|
| 605 |
int i;
|
| 606 |
|
| 607 |
if (section_list_loader_pid != 0)
|
| 608 |
{
|
| 609 |
log_error("section_list_loader already running, pid = %d\n", section_list_loader_pid);
|
| 610 |
return -2;
|
| 611 |
}
|
| 612 |
|
| 613 |
pid = fork();
|
| 614 |
|
| 615 |
if (pid > 0) // Parent process
|
| 616 |
{
|
| 617 |
SYS_child_process_count++;
|
| 618 |
section_list_loader_pid = pid;
|
| 619 |
log_std("Section list loader process (%d) start\n", pid);
|
| 620 |
return 0;
|
| 621 |
}
|
| 622 |
else if (pid < 0) // Error
|
| 623 |
{
|
| 624 |
log_error("fork() error (%d)\n", errno);
|
| 625 |
return -1;
|
| 626 |
}
|
| 627 |
|
| 628 |
// Child process
|
| 629 |
SYS_child_process_count = 0;
|
| 630 |
|
| 631 |
// Detach menu in shared memory
|
| 632 |
detach_menu_shm(p_bbs_menu);
|
| 633 |
free(p_bbs_menu);
|
| 634 |
p_bbs_menu = NULL;
|
| 635 |
|
| 636 |
// Do section data loader periodically
|
| 637 |
while (!SYS_server_exit)
|
| 638 |
{
|
| 639 |
if (SYS_section_list_reload)
|
| 640 |
{
|
| 641 |
SYS_section_list_reload = 0;
|
| 642 |
|
| 643 |
// Load section config
|
| 644 |
if (load_section_config_from_db() < 0)
|
| 645 |
{
|
| 646 |
log_error("load_section_config_from_db() error\n");
|
| 647 |
}
|
| 648 |
else
|
| 649 |
{
|
| 650 |
log_error("Reload section config successfully\n");
|
| 651 |
}
|
| 652 |
}
|
| 653 |
|
| 654 |
// Load section articles
|
| 655 |
article_count = article_block_article_count();
|
| 656 |
|
| 657 |
do
|
| 658 |
{
|
| 659 |
last_aid = article_block_last_aid();
|
| 660 |
|
| 661 |
if ((ret = append_articles_from_db(last_aid + 1, 0, LOAD_ARTICLE_COUNT_LIMIT)) < 0)
|
| 662 |
{
|
| 663 |
log_error("append_articles_from_db(%d, 0, %d) error\n", last_aid + 1, LOAD_ARTICLE_COUNT_LIMIT);
|
| 664 |
|
| 665 |
if (ret == ERR_UNKNOWN_SECTION)
|
| 666 |
{
|
| 667 |
SYS_section_list_reload = 1; // Force reload section_list
|
| 668 |
}
|
| 669 |
}
|
| 670 |
} while (ret == LOAD_ARTICLE_COUNT_LIMIT);
|
| 671 |
|
| 672 |
load_count = article_block_article_count() - article_count;
|
| 673 |
if (load_count > 0)
|
| 674 |
{
|
| 675 |
log_std("Incrementally load %d articles, last_aid = %d\n", load_count, article_block_last_aid());
|
| 676 |
}
|
| 677 |
|
| 678 |
if (SYS_section_list_reload)
|
| 679 |
{
|
| 680 |
continue;
|
| 681 |
}
|
| 682 |
|
| 683 |
// Load article_op log
|
| 684 |
last_mid = last_article_op_log_mid;
|
| 685 |
|
| 686 |
do
|
| 687 |
{
|
| 688 |
if ((ret = apply_article_op_log_from_db(LOAD_ARTICLE_COUNT_LIMIT)) < 0)
|
| 689 |
{
|
| 690 |
log_error("apply_article_op_log_from_db() error\n");
|
| 691 |
|
| 692 |
if (ret == ERR_UNKNOWN_SECTION)
|
| 693 |
{
|
| 694 |
SYS_section_list_reload = 1; // Force reload section_list
|
| 695 |
}
|
| 696 |
}
|
| 697 |
} while (ret == LOAD_ARTICLE_COUNT_LIMIT);
|
| 698 |
|
| 699 |
if (last_article_op_log_mid > last_mid)
|
| 700 |
{
|
| 701 |
log_std("Proceeded %d article logs, last_mid = %d\n", last_article_op_log_mid - last_mid, last_article_op_log_mid);
|
| 702 |
}
|
| 703 |
|
| 704 |
if (SYS_section_list_reload)
|
| 705 |
{
|
| 706 |
continue;
|
| 707 |
}
|
| 708 |
|
| 709 |
for (i = 0; i < SECTION_LIST_LOAD_INTERVAL && !SYS_server_exit && !SYS_section_list_reload; i++)
|
| 710 |
{
|
| 711 |
sleep(1);
|
| 712 |
}
|
| 713 |
}
|
| 714 |
|
| 715 |
// Child process exit
|
| 716 |
|
| 717 |
// Detach data pools shm
|
| 718 |
detach_section_list_shm();
|
| 719 |
detach_article_block_shm();
|
| 720 |
detach_trie_dict_shm();
|
| 721 |
|
| 722 |
log_std("Section list loader process exit normally\n");
|
| 723 |
log_end();
|
| 724 |
|
| 725 |
section_list_loader_pid = 0;
|
| 726 |
|
| 727 |
_exit(0);
|
| 728 |
|
| 729 |
return 0;
|
| 730 |
}
|
| 731 |
|
| 732 |
int section_list_loader_reload(void)
|
| 733 |
{
|
| 734 |
if (section_list_loader_pid == 0)
|
| 735 |
{
|
| 736 |
log_error("section_list_loader not running\n");
|
| 737 |
return -2;
|
| 738 |
}
|
| 739 |
|
| 740 |
if (kill(section_list_loader_pid, SIGHUP) < 0)
|
| 741 |
{
|
| 742 |
log_error("Send SIGTERM signal failed (%d)\n", errno);
|
| 743 |
return -1;
|
| 744 |
}
|
| 745 |
|
| 746 |
return 0;
|
| 747 |
}
|
| 748 |
|
| 749 |
int query_section_articles(SECTION_LIST *p_section, int32_t page_id, ARTICLE *p_articles[], int32_t *p_article_count)
|
| 750 |
{
|
| 751 |
ARTICLE *p_article;
|
| 752 |
ARTICLE *p_next_page_first_article;
|
| 753 |
int ret = 0;
|
| 754 |
|
| 755 |
if (p_section == NULL || p_articles == NULL || p_article_count == NULL)
|
| 756 |
{
|
| 757 |
log_error("query_section_articles() NULL pointer error\n");
|
| 758 |
return -1;
|
| 759 |
}
|
| 760 |
|
| 761 |
// acquire lock of section
|
| 762 |
if ((ret = section_list_rd_lock(p_section)) < 0)
|
| 763 |
{
|
| 764 |
log_error("section_list_rd_lock(sid = %d) error\n", p_section->sid);
|
| 765 |
return -2;
|
| 766 |
}
|
| 767 |
|
| 768 |
if (p_section->visible_article_count == 0)
|
| 769 |
{
|
| 770 |
*p_article_count = 0;
|
| 771 |
}
|
| 772 |
else if (page_id < 0 || page_id >= p_section->page_count)
|
| 773 |
{
|
| 774 |
log_error("Invalid page_id=%d, not in range [0, %d)\n", page_id, p_section->page_count);
|
| 775 |
ret = -3;
|
| 776 |
}
|
| 777 |
else
|
| 778 |
{
|
| 779 |
ret = page_id;
|
| 780 |
p_article = p_section->p_page_first_article[page_id];
|
| 781 |
p_next_page_first_article =
|
| 782 |
(page_id == p_section->page_count - 1 ? p_section->p_article_head : p_section->p_page_first_article[page_id + 1]);
|
| 783 |
*p_article_count = 0;
|
| 784 |
|
| 785 |
do
|
| 786 |
{
|
| 787 |
if (p_article->visible)
|
| 788 |
{
|
| 789 |
p_articles[*p_article_count] = p_article;
|
| 790 |
(*p_article_count)++;
|
| 791 |
}
|
| 792 |
p_article = p_article->p_next;
|
| 793 |
} while (p_article != p_next_page_first_article && (*p_article_count) <= BBS_article_limit_per_page);
|
| 794 |
|
| 795 |
if (*p_article_count != (page_id < p_section->page_count - 1 ? BBS_article_limit_per_page : p_section->last_page_visible_article_count))
|
| 796 |
{
|
| 797 |
log_error("Inconsistent visible article count %d detected in section %d page %d\n", *p_article_count, p_section->sid, page_id);
|
| 798 |
}
|
| 799 |
}
|
| 800 |
|
| 801 |
// release lock of section
|
| 802 |
if (section_list_rd_unlock(p_section) < 0)
|
| 803 |
{
|
| 804 |
log_error("section_list_rd_unlock(sid = %d) error\n", p_section->sid);
|
| 805 |
ret = -2;
|
| 806 |
}
|
| 807 |
|
| 808 |
return ret;
|
| 809 |
}
|
Parent Directory
| 
Revision Log