/[LeafOK_CVS]/lbbs/src/section_list_loader.c
ViewVC logotype

Annotation of /lbbs/src/section_list_loader.c

Parent Directory Parent Directory | Revision Log Revision Log

Revision 1.38 - (hide annotations)
Thu Jun 26 12:17:02 2025 UTC (8 months, 3 weeks ago) by sysadm
Branch: MAIN
Changes since 1.37: +25 -56 lines
Content type: text/x-csrc 
Move gen_ex load/reload to main process, no longer need RW_lock
1 sysadm 1.1 /***************************************************************************
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 sysadm 1.11 #include "article_cache.h"
18 sysadm 1.19 #include "bbs.h"
19 sysadm 1.30 #include "database.h"
20 sysadm 1.1 #include "log.h"
21 sysadm 1.4 #include "menu.h"
22 sysadm 1.30 #include "section_list_loader.h"
23 sysadm 1.1 #include <errno.h>
24 sysadm 1.4 #include <signal.h>
25 sysadm 1.29 #include <stdio.h>
26 sysadm 1.1 #include <stdlib.h>
27 sysadm 1.22 #include <string.h>
28 sysadm 1.4 #include <unistd.h>
29    
30 sysadm 1.5 int section_list_loader_pid;
31     int last_article_op_log_mid;
32 sysadm 1.1
33 sysadm 1.38 int load_section_config_from_db(int update_gen_ex)
34 sysadm 1.1 {
35 sysadm 1.23 MYSQL *db = NULL;
36     MYSQL_RES *rs = NULL, *rs2 = NULL;
37 sysadm 1.1 MYSQL_ROW row, row2;
38     char sql[SQL_BUFFER_LEN];
39     int32_t sid;
40 sysadm 1.8 char master_list[(BBS_username_max_len + 1) * 3 + 1];
41 sysadm 1.1 SECTION_LIST *p_section;
42 sysadm 1.34 char ex_menu_conf[FILE_PATH_LEN];
43     MENU_SET ex_menu_set_new;
44 sysadm 1.23 int ret = 0;
45 sysadm 1.1
46 sysadm 1.2 db = db_open();
47     if (db == NULL)
48     {
49     log_error("db_open() error: %s\n", mysql_error(db));
50 sysadm 1.23 ret = -1;
51     goto cleanup;
52 sysadm 1.2 }
53    
54 sysadm 1.1 snprintf(sql, sizeof(sql),
55 sysadm 1.2 "SELECT section_config.SID, sname, section_config.title, section_config.CID, "
56 sysadm 1.34 "read_user_level, write_user_level, section_config.enable * section_class.enable AS enable, "
57     "UNIX_TIMESTAMP(ex_menu_tm) AS ex_menu_tm "
58 sysadm 1.2 "FROM section_config INNER JOIN section_class ON section_config.CID = section_class.CID "
59 sysadm 1.1 "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 sysadm 1.23 ret = -2;
65     goto cleanup;
66 sysadm 1.1 }
67     if ((rs = mysql_store_result(db)) == NULL)
68     {
69     log_error("Get section_list data failed\n");
70 sysadm 1.23 ret = -2;
71     goto cleanup;
72 sysadm 1.1 }
73 sysadm 1.2
74     ret = 0;
75 sysadm 1.1 while ((row = mysql_fetch_row(rs)))
76     {
77     sid = atoi(row[0]);
78    
79     // Query section master
80     snprintf(sql, sizeof(sql),
81     "SELECT username FROM section_master "
82     "INNER JOIN user_list ON section_master.UID = user_list.UID "
83     "WHERE SID = %d AND section_master.enable AND (NOW() BETWEEN begin_dt AND end_dt) "
84 sysadm 1.8 "ORDER BY major DESC, begin_dt ASC LIMIT 3",
85 sysadm 1.1 sid);
86    
87     if (mysql_query(db, sql) != 0)
88     {
89     log_error("Query section_master error: %s\n", mysql_error(db));
90 sysadm 1.2 ret = -3;
91     break;
92 sysadm 1.1 }
93     if ((rs2 = mysql_store_result(db)) == NULL)
94     {
95     log_error("Get section_master data failed\n");
96 sysadm 1.2 ret = -3;
97     break;
98 sysadm 1.1 }
99 sysadm 1.8
100     master_list[0] = '\0';
101     while ((row2 = mysql_fetch_row(rs2)))
102 sysadm 1.1 {
103 sysadm 1.8 strncat(master_list, row2[0], sizeof(master_list) - 1 - strnlen(master_list, sizeof(master_list)));
104     strncat(master_list, " ", sizeof(master_list) - 1 - strnlen(master_list, sizeof(master_list)));
105 sysadm 1.1 }
106     mysql_free_result(rs2);
107 sysadm 1.23 rs2 = NULL;
108 sysadm 1.1
109     p_section = section_list_find_by_sid(sid);
110    
111     if (p_section == NULL)
112     {
113 sysadm 1.8 p_section = section_list_create(sid, row[1], row[2], master_list);
114 sysadm 1.1 if (p_section == NULL)
115     {
116 sysadm 1.2 log_error("section_list_create() error: load new section sid = %d sname = %s\n", sid, row[1]);
117     ret = -4;
118 sysadm 1.1 break;
119     }
120    
121     // acquire rw lock
122     ret = section_list_rw_lock(p_section);
123     if (ret < 0)
124     {
125     break;
126     }
127     }
128     else
129     {
130     // acquire rw lock
131     ret = section_list_rw_lock(p_section);
132     if (ret < 0)
133     {
134     break;
135     }
136    
137 sysadm 1.35 strncpy(p_section->sname, row[1], sizeof(p_section->sname) - 1);
138 sysadm 1.1 p_section->sname[sizeof(p_section->sname) - 1] = '\0';
139 sysadm 1.35 strncpy(p_section->stitle, row[2], sizeof(p_section->stitle) - 1);
140 sysadm 1.1 p_section->stitle[sizeof(p_section->stitle) - 1] = '\0';
141 sysadm 1.8 strncpy(p_section->master_list, master_list, sizeof(p_section->master_list) - 1);
142     p_section->master_list[sizeof(p_section->master_list) - 1] = '\0';
143 sysadm 1.1 }
144    
145     p_section->class_id = atoi(row[3]);
146     p_section->read_user_level = atoi(row[4]);
147     p_section->write_user_level = atoi(row[5]);
148     p_section->enable = (int8_t)atoi(row[6]);
149    
150 sysadm 1.34 // Update gen_ex menu set
151 sysadm 1.38 if (update_gen_ex && p_section->enable && atoi(row[7]) > p_section->ex_menu_tm)
152 sysadm 1.34 {
153     snprintf(ex_menu_conf, sizeof(ex_menu_conf), "%s/%d", VAR_GEN_EX_MENU_DIR, p_section->sid);
154    
155 sysadm 1.38 ret = load_menu(&ex_menu_set_new, ex_menu_conf);
156 sysadm 1.34 if (ret < 0)
157     {
158 sysadm 1.38 unload_menu(&ex_menu_set_new);
159     log_error("load_menu(%s) error: %d\n", ex_menu_conf, ret);
160 sysadm 1.34 }
161     else
162     {
163 sysadm 1.38 if (p_section->ex_menu_tm > 0)
164 sysadm 1.34 {
165 sysadm 1.38 unload_menu(&(p_section->ex_menu_set));
166 sysadm 1.34 }
167    
168 sysadm 1.38 ex_menu_set_new.allow_exit = 1; // Allow exit menu
169     memcpy(&(p_section->ex_menu_set), &ex_menu_set_new, sizeof(ex_menu_set_new));
170 sysadm 1.34
171 sysadm 1.38 p_section->ex_menu_tm = atol(row[7]);
172 sysadm 1.34 #ifdef _DEBUG
173 sysadm 1.38 log_common("Loaded gen_ex_menu of section %d [%s]\n", p_section->sid, p_section->sname);
174 sysadm 1.34 #endif
175     }
176     }
177    
178 sysadm 1.1 // release rw lock
179     ret = section_list_rw_unlock(p_section);
180     if (ret < 0)
181     {
182     break;
183     }
184     }
185 sysadm 1.23
186     cleanup:
187 sysadm 1.31 mysql_free_result(rs2);
188 sysadm 1.1 mysql_free_result(rs);
189 sysadm 1.2 mysql_close(db);
190    
191     return ret;
192 sysadm 1.1 }
193 sysadm 1.3
194 sysadm 1.9 int append_articles_from_db(int32_t start_aid, int global_lock, int article_count_limit)
195 sysadm 1.3 {
196 sysadm 1.23 MYSQL *db = NULL;
197     MYSQL_RES *rs = NULL;
198 sysadm 1.3 MYSQL_ROW row;
199     char sql[SQL_BUFFER_LEN];
200     ARTICLE article;
201 sysadm 1.5 ARTICLE *p_topic;
202 sysadm 1.3 SECTION_LIST *p_section = NULL;
203     int32_t last_sid = 0;
204 sysadm 1.16 char sub_ip[IP_ADDR_LEN];
205 sysadm 1.9 int article_count = 0;
206 sysadm 1.3 int ret = 0;
207     int i;
208    
209     db = db_open();
210     if (db == NULL)
211     {
212     log_error("db_open() error: %s\n", mysql_error(db));
213 sysadm 1.23 ret = -1;
214     goto cleanup;
215 sysadm 1.3 }
216    
217     snprintf(sql, sizeof(sql),
218 sysadm 1.11 "SELECT bbs.AID, TID, SID, bbs.CID, UID, visible, excerption, ontop, `lock`, "
219     "transship, username, nickname, title, UNIX_TIMESTAMP(sub_dt) AS sub_dt, "
220 sysadm 1.16 "sub_ip, bbs_content.content "
221 sysadm 1.11 "FROM bbs INNER JOIN bbs_content ON bbs.CID = bbs_content.CID "
222     "WHERE bbs.AID >= %d ORDER BY bbs.AID LIMIT %d",
223 sysadm 1.9 start_aid, article_count_limit);
224 sysadm 1.3
225     if (mysql_query(db, sql) != 0)
226     {
227     log_error("Query article list error: %s\n", mysql_error(db));
228 sysadm 1.23 ret = -2;
229     goto cleanup;
230 sysadm 1.3 }
231 sysadm 1.11 if ((rs = mysql_use_result(db)) == NULL)
232 sysadm 1.3 {
233     log_error("Get article list data failed\n");
234 sysadm 1.23 ret = -2;
235     goto cleanup;
236 sysadm 1.3 }
237    
238     // acquire global lock
239 sysadm 1.23 if (global_lock && (ret = section_list_rw_lock(NULL)) < 0)
240 sysadm 1.3 {
241 sysadm 1.23 log_error("section_list_rw_lock(sid = 0) error\n");
242     goto cleanup;
243 sysadm 1.3 }
244    
245     while ((row = mysql_fetch_row(rs)))
246     {
247 sysadm 1.22 memset(&article, 0, sizeof(ARTICLE));
248 sysadm 1.3
249     // copy data of article
250     i = 0;
251    
252     article.aid = atoi(row[i++]);
253     article.tid = atoi(row[i++]);
254     article.sid = atoi(row[i++]);
255     article.cid = atoi(row[i++]);
256     article.uid = atoi(row[i++]);
257     article.visible = (int8_t)atoi(row[i++]);
258     article.excerption = (int8_t)atoi(row[i++]);
259     article.ontop = (int8_t)atoi(row[i++]);
260     article.lock = (int8_t)atoi(row[i++]);
261 sysadm 1.5 article.transship = (int8_t)atoi(row[i++]);
262 sysadm 1.3
263     strncpy(article.username, row[i++], sizeof(article.username) - 1);
264     article.username[sizeof(article.username) - 1] = '\0';
265     strncpy(article.nickname, row[i++], sizeof(article.nickname) - 1);
266     article.nickname[sizeof(article.nickname) - 1] = '\0';
267     strncpy(article.title, row[i++], sizeof(article.title) - 1);
268     article.title[sizeof(article.title) - 1] = '\0';
269    
270     article.sub_dt = atol(row[i++]);
271    
272 sysadm 1.16 strncpy(sub_ip, row[i++], sizeof(sub_ip) - 1);
273     sub_ip[sizeof(sub_ip) - 1] = '\0';
274     ip_mask(sub_ip, 1, '*');
275    
276 sysadm 1.3 // release lock of last section if different from current one
277     if (!global_lock && article.sid != last_sid && last_sid != 0)
278     {
279     if ((ret = section_list_rw_unlock(p_section)) < 0)
280     {
281 sysadm 1.11 log_error("section_list_rw_unlock(sid=%d) error\n", p_section->sid);
282 sysadm 1.3 break;
283     }
284     }
285    
286     if ((p_section = section_list_find_by_sid(article.sid)) == NULL)
287     {
288     log_error("section_list_find_by_sid(%d) error: unknown section, try reloading section config\n", article.sid);
289 sysadm 1.4 ret = ERR_UNKNOWN_SECTION; // Unknown section found
290 sysadm 1.3 break;
291     }
292    
293 sysadm 1.5 if (article.visible != 0 && article.tid != 0)
294     {
295     // Check if topic article is visible
296     p_topic = article_block_find_by_aid(article.tid);
297     if (p_topic == NULL || p_topic->visible == 0)
298     {
299     // log_error("Set article (aid = %d) as invisible due to invisible or non-existing topic head\n", article.aid);
300     article.tid = 0;
301     article.visible = 0;
302     }
303     }
304    
305 sysadm 1.3 // acquire lock of current section if different from last one
306     if (!global_lock && article.sid != last_sid)
307     {
308 sysadm 1.4 if ((ret = section_list_rw_lock(p_section)) < 0)
309 sysadm 1.3 {
310 sysadm 1.11 log_error("section_list_rw_lock(sid=0) error\n");
311 sysadm 1.3 break;
312     }
313     }
314    
315     // append article to section list
316     last_sid = article.sid;
317    
318     if (section_list_append_article(p_section, &article) < 0)
319     {
320 sysadm 1.11 log_error("section_list_append_article(sid=%d, aid=%d) error\n",
321 sysadm 1.3 p_section->sid, article.aid);
322     ret = -3;
323     break;
324     }
325 sysadm 1.9
326     article_count++;
327    
328 sysadm 1.16 if (article_cache_generate(VAR_ARTICLE_CACHE_DIR, &article, p_section, row[i++], sub_ip, 0) < 0)
329 sysadm 1.11 {
330     log_error("article_cache_generate(aid=%d, cid=%d) error\n", article.aid, article.cid);
331     ret = -4;
332     break;
333     }
334 sysadm 1.3 }
335    
336     // release lock of last section
337     if (!global_lock && last_sid != 0)
338     {
339     if ((ret = section_list_rw_unlock(p_section)) < 0)
340     {
341 sysadm 1.11 log_error("section_list_rw_unlock(sid=%d) error\n", p_section->sid);
342 sysadm 1.3 }
343     }
344    
345     // release global lock
346 sysadm 1.23 if (global_lock && (ret = section_list_rw_unlock(NULL)) < 0)
347 sysadm 1.3 {
348 sysadm 1.23 log_error("section_list_rw_unlock(sid=0) error\n");
349 sysadm 1.3 }
350    
351     cleanup:
352     mysql_free_result(rs);
353     mysql_close(db);
354    
355 sysadm 1.31 article_cache_cleanup();
356    
357 sysadm 1.9 return (ret < 0 ? ret : article_count);
358 sysadm 1.3 }
359 sysadm 1.4
360 sysadm 1.5 int set_last_article_op_log_from_db(void)
361     {
362 sysadm 1.23 MYSQL *db = NULL;
363     MYSQL_RES *rs = NULL;
364 sysadm 1.5 MYSQL_ROW row;
365     char sql[SQL_BUFFER_LEN];
366 sysadm 1.23 int ret = 0;
367 sysadm 1.5
368     db = db_open();
369     if (db == NULL)
370     {
371     log_error("db_open() error: %s\n", mysql_error(db));
372 sysadm 1.23 ret = -1;
373     goto cleanup;
374 sysadm 1.5 }
375    
376     snprintf(sql, sizeof(sql),
377     "SELECT MID FROM bbs_article_op ORDER BY MID DESC LIMIT 1");
378    
379     if (mysql_query(db, sql) != 0)
380     {
381     log_error("Query article op error: %s\n", mysql_error(db));
382 sysadm 1.23 ret = -2;
383     goto cleanup;
384 sysadm 1.5 }
385     if ((rs = mysql_store_result(db)) == NULL)
386     {
387     log_error("Get article op data failed\n");
388 sysadm 1.23 ret = -2;
389     goto cleanup;
390 sysadm 1.5 }
391    
392     if ((row = mysql_fetch_row(rs)))
393     {
394     last_article_op_log_mid = atoi(row[0]);
395     }
396    
397 sysadm 1.23 cleanup:
398 sysadm 1.5 mysql_free_result(rs);
399     mysql_close(db);
400    
401 sysadm 1.23 return (ret < 0 ? ret : last_article_op_log_mid);
402 sysadm 1.5 }
403    
404 sysadm 1.9 int apply_article_op_log_from_db(int op_count_limit)
405 sysadm 1.5 {
406 sysadm 1.23 MYSQL *db = NULL;
407     MYSQL_RES *rs = NULL, *rs2 = NULL;
408 sysadm 1.5 MYSQL_ROW row, row2;
409     char sql[SQL_BUFFER_LEN];
410     ARTICLE *p_article;
411     SECTION_LIST *p_section = NULL;
412     SECTION_LIST *p_section_dest;
413 sysadm 1.16 char sub_ip[IP_ADDR_LEN];
414 sysadm 1.5 int32_t last_sid = 0;
415     int32_t sid_dest;
416 sysadm 1.9 int op_count = 0;
417 sysadm 1.5 int ret = 0;
418    
419     db = db_open();
420     if (db == NULL)
421     {
422     log_error("db_open() error: %s\n", mysql_error(db));
423 sysadm 1.23 ret = -1;
424     goto cleanup;
425 sysadm 1.5 }
426    
427     snprintf(sql, sizeof(sql),
428     "SELECT MID, AID, type FROM bbs_article_op "
429 sysadm 1.9 "WHERE MID > %d AND type NOT IN ('A') "
430     "ORDER BY MID LIMIT %d",
431     last_article_op_log_mid, op_count_limit);
432 sysadm 1.5
433     if (mysql_query(db, sql) != 0)
434     {
435     log_error("Query article log error: %s\n", mysql_error(db));
436 sysadm 1.23 ret = -2;
437     goto cleanup;
438 sysadm 1.5 }
439     if ((rs = mysql_store_result(db)) == NULL)
440     {
441     log_error("Get article log data failed\n");
442 sysadm 1.23 ret = -2;
443     goto cleanup;
444 sysadm 1.5 }
445    
446     while ((row = mysql_fetch_row(rs)))
447     {
448     p_article = article_block_find_by_aid(atoi(row[1]));
449     if (p_article == NULL) // related article has not been appended yet
450     {
451     ret = -2;
452     break;
453     }
454    
455     // release lock of last section if different from current one
456     if (p_article->sid != last_sid && last_sid != 0)
457     {
458     if ((ret = section_list_rw_unlock(p_section)) < 0)
459     {
460     log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
461     break;
462     }
463     }
464    
465     if ((p_section = section_list_find_by_sid(p_article->sid)) == NULL)
466     {
467     log_error("section_list_find_by_sid(%d) error: unknown section, try reloading section config\n", p_article->sid);
468     ret = ERR_UNKNOWN_SECTION; // Unknown section found
469     break;
470     }
471    
472     // acquire lock of current section if different from last one
473     if (p_article->sid != last_sid)
474     {
475     if ((ret = section_list_rw_lock(p_section)) < 0)
476     {
477     log_error("section_list_rw_lock(sid = 0) error\n");
478     break;
479     }
480     }
481    
482     last_sid = p_article->sid;
483    
484     switch (row[2][0])
485     {
486     case 'A': // Add article
487     log_error("Operation type=A should not be found\n");
488     break;
489     case 'D': // Delete article
490     case 'X': // Delete article by Admin
491 sysadm 1.20 if (section_list_set_article_visible(p_section, atoi(row[1]), 0) < 0)
492 sysadm 1.5 {
493 sysadm 1.20 log_error("section_list_set_article_visible(sid=%d, aid=%d, visible=0) error\n", p_section->sid, atoi(row[1]));
494     }
495     if (section_list_calculate_page(p_section, atoi(row[1])) < 0)
496     {
497     log_error("section_list_calculate_page(aid=%d) error\n", atoi(row[1]));
498 sysadm 1.5 }
499     break;
500     case 'S': // Restore article
501 sysadm 1.20 if (section_list_set_article_visible(p_section, atoi(row[1]), 1) < 0)
502     {
503     log_error("section_list_set_article_visible(sid=%d, aid=%d, visible=1) error\n", p_section->sid, atoi(row[1]));
504     }
505     if (section_list_calculate_page(p_section, atoi(row[1])) < 0)
506     {
507     log_error("section_list_calculate_page(aid=%d) error\n", atoi(row[1]));
508     }
509 sysadm 1.5 break;
510     case 'L': // Lock article
511     p_article->lock = 1;
512     break;
513     case 'U': // Unlock article
514     p_article->lock = 0;
515     break;
516     case 'M': // Modify article
517 sysadm 1.9 snprintf(sql, sizeof(sql),
518 sysadm 1.16 "SELECT bbs.CID, sub_ip, bbs_content.content "
519 sysadm 1.11 "FROM bbs INNER JOIN bbs_content ON bbs.CID = bbs_content.CID "
520     "WHERE bbs.AID = %d",
521 sysadm 1.9 p_article->aid);
522    
523     if (mysql_query(db, sql) != 0)
524     {
525     log_error("Query article error: %s\n", mysql_error(db));
526     ret = -3;
527     break;
528     }
529 sysadm 1.12 if ((rs2 = mysql_use_result(db)) == NULL)
530 sysadm 1.9 {
531     log_error("Get article data failed\n");
532     ret = -3;
533     break;
534     }
535     if ((row2 = mysql_fetch_row(rs2)))
536     {
537     p_article->cid = atoi(row2[0]);
538 sysadm 1.11
539 sysadm 1.16 strncpy(sub_ip, row2[1], sizeof(sub_ip) - 1);
540     sub_ip[sizeof(sub_ip) - 1] = '\0';
541     ip_mask(sub_ip, 1, '*');
542    
543     if (article_cache_generate(VAR_ARTICLE_CACHE_DIR, p_article, p_section, row2[2], sub_ip, 0) < 0)
544 sysadm 1.11 {
545     log_error("article_cache_generate(aid=%d, cid=%d) error\n", p_article->aid, p_article->cid);
546     ret = -4;
547     }
548 sysadm 1.9 }
549     else
550     {
551     p_article->cid = 0;
552     ret = -4;
553     }
554     mysql_free_result(rs2);
555 sysadm 1.23 rs2 = NULL;
556 sysadm 1.21
557     p_article->excerption = 0; // Set excerption = 0 implicitly in case of rare condition
558 sysadm 1.5 break;
559     case 'T': // Move article
560     snprintf(sql, sizeof(sql),
561     "SELECT SID FROM bbs WHERE AID = %d",
562     p_article->aid);
563    
564     if (mysql_query(db, sql) != 0)
565     {
566     log_error("Query article error: %s\n", mysql_error(db));
567     ret = -3;
568     break;
569     }
570     if ((rs2 = mysql_store_result(db)) == NULL)
571     {
572     log_error("Get article data failed\n");
573     ret = -3;
574     break;
575     }
576     if ((row2 = mysql_fetch_row(rs2)))
577     {
578     sid_dest = atoi(row2[0]);
579     }
580     else
581     {
582     sid_dest = 0;
583     ret = -4;
584     }
585     mysql_free_result(rs2);
586 sysadm 1.23 rs2 = NULL;
587 sysadm 1.5
588     if (sid_dest > 0 && sid_dest != p_article->sid)
589     {
590     p_section_dest = section_list_find_by_sid(sid_dest);
591     if (p_section_dest == NULL)
592     {
593     ret = ERR_UNKNOWN_SECTION;
594     break;
595     }
596 sysadm 1.6 // acquire lock of dest section
597     if ((ret = section_list_rw_lock(p_section_dest)) < 0)
598     {
599     log_error("section_list_rw_lock(sid = %d) error\n", p_section_dest);
600     break;
601     }
602 sysadm 1.5 // Move topic
603     if ((ret = section_list_move_topic(p_section, p_section_dest, p_article->aid)) < 0)
604     {
605 sysadm 1.6 log_error("section_list_move_topic(src_sid=%d, dest_sid=%d, aid=%d) error (%d), retry in the next loop\n",
606     p_section->sid, p_section_dest->sid, p_article->aid, ret);
607     }
608     // release lock of dest section
609     if (section_list_rw_unlock(p_section_dest) < 0)
610     {
611     log_error("section_list_rw_unlock(sid = %d) error\n", p_section_dest);
612     ret = -1;
613 sysadm 1.5 }
614     }
615     break;
616     case 'E': // Set article as excerption
617     p_article->excerption = 1;
618     break;
619     case 'O': // Unset article as excerption
620     p_article->excerption = 0;
621     break;
622     case 'F': // Set article on top
623     case 'V': // Unset article on top
624 sysadm 1.32 p_article->ontop = (row[2][0] == 'F' ? 1 : 0);
625     if (section_list_update_article_ontop(p_section, p_article) < 0)
626     {
627     log_error("section_list_update_article_ontop(sid=%d, aid=%d) error\n",
628     p_section->sid, p_article->aid);
629     }
630 sysadm 1.5 break;
631     case 'Z': // Set article as trnasship
632     p_article->transship = 1;
633     break;
634     default:
635     // log_error("Operation type=%s unknown, mid=%s\n", row[2], row[0]);
636     break;
637     }
638    
639     if (ret < 0)
640     {
641     break;
642     }
643    
644     // Update MID with last successfully proceeded article_op_log
645     last_article_op_log_mid = atoi(row[0]);
646 sysadm 1.9
647     op_count++;
648 sysadm 1.5 }
649    
650     // release lock of last section
651     if (last_sid != 0)
652     {
653     if ((ret = section_list_rw_unlock(p_section)) < 0)
654     {
655     log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
656     }
657     }
658    
659 sysadm 1.23 cleanup:
660     mysql_free_result(rs2);
661 sysadm 1.5 mysql_free_result(rs);
662     mysql_close(db);
663    
664 sysadm 1.9 return (ret < 0 ? ret : op_count);
665 sysadm 1.5 }
666    
667 sysadm 1.4 int section_list_loader_launch(void)
668     {
669 sysadm 1.34 struct sigaction act = {0};
670 sysadm 1.4 int pid;
671     int ret;
672     int32_t last_aid;
673     int article_count;
674     int load_count;
675 sysadm 1.5 int last_mid;
676 sysadm 1.4 int i;
677    
678     if (section_list_loader_pid != 0)
679     {
680     log_error("section_list_loader already running, pid = %d\n", section_list_loader_pid);
681     return -2;
682     }
683    
684     pid = fork();
685    
686     if (pid > 0) // Parent process
687     {
688     SYS_child_process_count++;
689     section_list_loader_pid = pid;
690 sysadm 1.18 log_common("Section list loader process (pid = %d) start\n", pid);
691 sysadm 1.4 return 0;
692     }
693     else if (pid < 0) // Error
694     {
695     log_error("fork() error (%d)\n", errno);
696     return -1;
697     }
698    
699     // Child process
700     SYS_child_process_count = 0;
701    
702     // Detach menu in shared memory
703 sysadm 1.36 detach_menu_shm(&bbs_menu);
704 sysadm 1.4
705 sysadm 1.34 // Set signal handler
706     act.sa_handler = SIG_DFL;
707 sysadm 1.38 if (sigaction(SIGHUP, &act, NULL) == -1)
708     {
709     log_error("set signal action of SIGHUP error: %d\n", errno);
710     }
711     act.sa_handler = SIG_DFL;
712 sysadm 1.34 if (sigaction(SIGCHLD, &act, NULL) == -1)
713     {
714     log_error("set signal action of SIGCHLD error: %d\n", errno);
715     }
716    
717 sysadm 1.4 // Do section data loader periodically
718     while (!SYS_server_exit)
719     {
720 sysadm 1.38 if (SYS_conf_reload)
721 sysadm 1.4 {
722 sysadm 1.38 SYS_conf_reload = 0;
723 sysadm 1.4
724     // Load section config
725 sysadm 1.38 if (load_section_config_from_db(0) < 0)
726 sysadm 1.4 {
727 sysadm 1.38 log_error("load_section_config_from_db(0) error\n");
728 sysadm 1.4 }
729     else
730     {
731 sysadm 1.27 log_common("Reload section config successfully\n");
732 sysadm 1.4 }
733     }
734    
735     // Load section articles
736     article_count = article_block_article_count();
737    
738 sysadm 1.9 do
739 sysadm 1.4 {
740 sysadm 1.9 last_aid = article_block_last_aid();
741 sysadm 1.4
742 sysadm 1.9 if ((ret = append_articles_from_db(last_aid + 1, 0, LOAD_ARTICLE_COUNT_LIMIT)) < 0)
743 sysadm 1.4 {
744 sysadm 1.9 log_error("append_articles_from_db(%d, 0, %d) error\n", last_aid + 1, LOAD_ARTICLE_COUNT_LIMIT);
745    
746     if (ret == ERR_UNKNOWN_SECTION)
747     {
748 sysadm 1.38 SYS_conf_reload = 1; // Force reload section_list
749 sysadm 1.9 }
750 sysadm 1.4 }
751 sysadm 1.9 } while (ret == LOAD_ARTICLE_COUNT_LIMIT);
752 sysadm 1.5
753     load_count = article_block_article_count() - article_count;
754     if (load_count > 0)
755     {
756 sysadm 1.17 log_common("Incrementally load %d articles, last_aid = %d\n", load_count, article_block_last_aid());
757 sysadm 1.5 }
758    
759 sysadm 1.38 if (SYS_conf_reload)
760 sysadm 1.5 {
761     continue;
762     }
763    
764     // Load article_op log
765     last_mid = last_article_op_log_mid;
766    
767 sysadm 1.9 do
768 sysadm 1.4 {
769 sysadm 1.9 if ((ret = apply_article_op_log_from_db(LOAD_ARTICLE_COUNT_LIMIT)) < 0)
770     {
771     log_error("apply_article_op_log_from_db() error\n");
772 sysadm 1.4
773 sysadm 1.9 if (ret == ERR_UNKNOWN_SECTION)
774     {
775 sysadm 1.38 SYS_conf_reload = 1; // Force reload section_list
776 sysadm 1.9 }
777 sysadm 1.4 }
778 sysadm 1.9 } while (ret == LOAD_ARTICLE_COUNT_LIMIT);
779 sysadm 1.4
780 sysadm 1.5 if (last_article_op_log_mid > last_mid)
781     {
782 sysadm 1.17 log_common("Proceeded %d article logs, last_mid = %d\n", last_article_op_log_mid - last_mid, last_article_op_log_mid);
783 sysadm 1.5 }
784    
785 sysadm 1.38 if (SYS_conf_reload)
786 sysadm 1.5 {
787     continue;
788     }
789    
790 sysadm 1.38 for (i = 0; i < BBS_section_list_load_interval && !SYS_server_exit && !SYS_conf_reload; i++)
791 sysadm 1.5 {
792     sleep(1);
793 sysadm 1.4 }
794     }
795    
796     // Child process exit
797    
798 sysadm 1.31 article_cache_cleanup();
799    
800 sysadm 1.34 // gen_ex_menu cleanup
801     section_list_ex_menu_set_cleanup();
802 sysadm 1.37
803 sysadm 1.4 // Detach data pools shm
804     detach_section_list_shm();
805     detach_article_block_shm();
806     detach_trie_dict_shm();
807    
808 sysadm 1.17 log_common("Section list loader process exit normally\n");
809 sysadm 1.4 log_end();
810    
811     section_list_loader_pid = 0;
812    
813     _exit(0);
814    
815     return 0;
816     }
817    
818 sysadm 1.33 int query_section_articles(SECTION_LIST *p_section, int page_id, ARTICLE *p_articles[],
819     int *p_article_count, int *p_page_count, int *p_ontop_start_offset)
820 sysadm 1.7 {
821     ARTICLE *p_article;
822     ARTICLE *p_next_page_first_article;
823     int ret = 0;
824 sysadm 1.32 int i;
825 sysadm 1.7
826 sysadm 1.33 if (p_section == NULL || p_articles == NULL || p_article_count == NULL || p_page_count == NULL || p_ontop_start_offset == NULL)
827 sysadm 1.7 {
828 sysadm 1.34 log_error("NULL pointer error\n");
829 sysadm 1.7 return -1;
830     }
831    
832     // acquire lock of section
833     if ((ret = section_list_rd_lock(p_section)) < 0)
834     {
835     log_error("section_list_rd_lock(sid = %d) error\n", p_section->sid);
836     return -2;
837     }
838    
839 sysadm 1.32 *p_page_count = section_list_page_count_with_ontop(p_section);
840     *p_article_count = 0;
841 sysadm 1.33 *p_ontop_start_offset = BBS_article_limit_per_page;
842 sysadm 1.10
843 sysadm 1.9 if (p_section->visible_article_count == 0)
844     {
845 sysadm 1.32 // empty section
846 sysadm 1.9 }
847 sysadm 1.32 else if (page_id < 0 || page_id >= *p_page_count)
848 sysadm 1.7 {
849 sysadm 1.32 log_error("Invalid page_id=%d, not in range [0, %d)\n", page_id, *p_page_count);
850 sysadm 1.7 ret = -3;
851     }
852     else
853     {
854     ret = page_id;
855    
856 sysadm 1.32 if (page_id <= p_section->page_count - 1)
857 sysadm 1.7 {
858 sysadm 1.32 p_article = p_section->p_page_first_article[page_id];
859     p_next_page_first_article =
860     (page_id == p_section->page_count - 1 ? p_section->p_article_head : p_section->p_page_first_article[page_id + 1]);
861    
862     do
863     {
864     if (p_article->visible)
865     {
866     p_articles[*p_article_count] = p_article;
867     (*p_article_count)++;
868     }
869     p_article = p_article->p_next;
870     } while (p_article != p_next_page_first_article && (*p_article_count) <= BBS_article_limit_per_page);
871    
872     if (*p_article_count != (page_id < p_section->page_count - 1 ? BBS_article_limit_per_page : p_section->last_page_visible_article_count))
873 sysadm 1.7 {
874 sysadm 1.32 log_error("Inconsistent visible article count %d detected in section %d page %d\n", *p_article_count, p_section->sid, page_id);
875 sysadm 1.7 }
876 sysadm 1.32 }
877 sysadm 1.8
878 sysadm 1.33 *p_ontop_start_offset = *p_article_count;
879    
880 sysadm 1.32 // Append ontop articles
881     if (page_id >= p_section->page_count - 1)
882 sysadm 1.8 {
883 sysadm 1.32 i = (page_id == p_section->page_count - 1
884     ? 0
885     : (page_id - p_section->page_count + 1) * BBS_article_limit_per_page - p_section->last_page_visible_article_count);
886     while (*p_article_count < BBS_article_limit_per_page && i < p_section->ontop_article_count)
887     {
888     p_articles[(*p_article_count)++] = p_section->p_ontop_articles[i++];
889     }
890 sysadm 1.8 }
891 sysadm 1.7 }
892    
893     // release lock of section
894 sysadm 1.8 if (section_list_rd_unlock(p_section) < 0)
895 sysadm 1.7 {
896     log_error("section_list_rd_unlock(sid = %d) error\n", p_section->sid);
897     ret = -2;
898     }
899    
900     return ret;
901     }
902 sysadm 1.14
903 sysadm 1.24 int locate_article_in_section(SECTION_LIST *p_section, const ARTICLE *p_article_cur, int direction, int step,
904 sysadm 1.15 int *p_page_id, int *p_visible_offset, int *p_article_count)
905 sysadm 1.14 {
906 sysadm 1.15 const ARTICLE *p_article = NULL;
907     ARTICLE *p_tmp;
908 sysadm 1.14 int32_t aid = 0;
909 sysadm 1.24 int page_id = 0;
910     int offset = 0;
911 sysadm 1.14 int ret = 0;
912 sysadm 1.15 int i;
913 sysadm 1.14
914 sysadm 1.15 if (p_section == NULL || p_article_cur == NULL || p_page_id == NULL || p_visible_offset == NULL || p_article_count == NULL)
915 sysadm 1.14 {
916 sysadm 1.34 log_error("NULL pointer error\n");
917 sysadm 1.14 return -1;
918     }
919    
920     // acquire lock of section
921     if ((ret = section_list_rd_lock(p_section)) < 0)
922     {
923     log_error("section_list_rd_lock(sid = %d) error\n", p_section->sid);
924     return -2;
925     }
926    
927     if (direction == 0)
928     {
929     aid = p_article_cur->aid;
930     }
931     else if (direction == 1)
932     {
933 sysadm 1.24 for (p_article = p_article_cur; step > 0 && p_article->p_topic_next->aid > p_article_cur->aid; p_article = p_article->p_topic_next)
934 sysadm 1.14 {
935 sysadm 1.24 if (p_article->visible)
936     {
937     step--;
938     }
939     }
940 sysadm 1.15
941 sysadm 1.25 aid = (p_article->aid > p_article_cur->aid && p_article->visible ? p_article->aid : 0);
942 sysadm 1.14 }
943     else if (direction == -1)
944     {
945 sysadm 1.24 for (p_article = p_article_cur; step > 0 && p_article->p_topic_prior->aid < p_article_cur->aid; p_article = p_article->p_topic_prior)
946 sysadm 1.14 {
947 sysadm 1.24 if (p_article->visible)
948     {
949     step--;
950     }
951     }
952 sysadm 1.15
953 sysadm 1.25 aid = (p_article->aid < p_article_cur->aid && p_article->visible ? p_article->aid : 0);
954 sysadm 1.14 }
955    
956 sysadm 1.15 p_article = NULL;
957    
958 sysadm 1.14 if (aid > 0)
959     {
960 sysadm 1.15 p_article = section_list_find_article_with_offset(p_section, aid, &page_id, &offset, &p_tmp);
961 sysadm 1.14 if (p_article != NULL)
962     {
963 sysadm 1.15 *p_article_count = (page_id == p_section->page_count - 1 ? p_section->last_page_visible_article_count : BBS_article_limit_per_page);
964    
965     p_article = p_section->p_page_first_article[page_id];
966 sysadm 1.25 for (i = 0; i < *p_article_count && p_article != NULL;)
967 sysadm 1.15 {
968     if (p_article->visible)
969     {
970     if (p_article->aid == aid)
971     {
972     *p_page_id = page_id;
973     *p_visible_offset = i;
974     break;
975     }
976     i++;
977     if (i >= *p_article_count)
978     {
979     log_error("Visible article (aid=%d) not found in page %d\n", aid, page_id);
980     p_article = NULL;
981 sysadm 1.25 break;
982 sysadm 1.15 }
983     }
984     p_article = p_article->p_next;
985     }
986 sysadm 1.32
987     // Include ontop articles
988     *p_article_count = section_list_page_article_count_with_ontop(p_section, page_id);
989 sysadm 1.14 }
990     }
991    
992     // release lock of section
993     if (section_list_rd_unlock(p_section) < 0)
994     {
995     log_error("section_list_rd_unlock(sid = %d) error\n", p_section->sid);
996     ret = -2;
997     }
998    
999     return (ret < 0 ? ret : (p_article == NULL ? 0 : 1));
1000     }
1001 sysadm 1.34
1002     int get_section_ex_menu_set(SECTION_LIST *p_section, MENU_SET *p_ex_menu_set)
1003     {
1004     int ret = 0;
1005    
1006     if (p_section == NULL || p_ex_menu_set == NULL)
1007     {
1008     log_error("NULL pointer error\n");
1009     return -1;
1010     }
1011    
1012     // acquire lock of section
1013     if ((ret = section_list_rd_lock(p_section)) < 0)
1014     {
1015     log_error("section_list_rd_lock(sid = %d) error\n", p_section->sid);
1016     return -2;
1017     }
1018    
1019     memcpy(p_ex_menu_set, &(p_section->ex_menu_set), sizeof(p_section->ex_menu_set));
1020    
1021     // release lock of section
1022     if (section_list_rd_unlock(p_section) < 0)
1023     {
1024     log_error("section_list_rd_unlock(sid = %d) error\n", p_section->sid);
1025     ret = -2;
1026     }
1027    
1028     return ret;
1029     }
webmaster@leafok.com
 ViewVC Help
Powered by ViewVC 1.3.0-beta1