/[LeafOK_CVS]/lbbs/include/section_list.h
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Revision 1.4 by sysadm, Wed May 21 12:43:04 2025 UTC Revision 1.31 by sysadm, Wed Oct 29 01:49:48 2025 UTC
# Line 14  Line 14 
14   *                                                                         *   *                                                                         *
15   ***************************************************************************/   ***************************************************************************/
16    
17  #include "common.h"  #ifndef _SECTION_LIST_H_
18    #define _SECTION_LIST_H_
19    
20  #include "bbs.h"  #include "bbs.h"
21    #include "common.h"
22    #include "menu.h"
23    #include <time.h>
24    
25    #define BBS_article_title_max_len 160
26    #define BBS_article_limit_per_section 50000
27    #define BBS_article_limit_per_page 20
28    
29  #define BBS_article_title_max_len 80  #define BBS_ontop_article_limit_per_section 10
30    
31  // Limit of articles (including those marked as deleted) per section = BBS_article_limit_per_block * BBS_article_block_limit_per_section  #define ARTICLE_PER_BLOCK 1000
 #define BBS_article_limit_per_block 1000  
 #define BBS_article_block_limit_per_section 50  
32    
33  struct article_t  struct article_t
34  {  {
35          int32_t aid;          int32_t aid;
36          int32_t tid;          int32_t tid;
37            int32_t sid;
38          int32_t cid;          int32_t cid;
39          int32_t uid;          int32_t uid;
40          struct article_t *p_prior; // prior article          struct article_t *p_prior;               // prior article
41          struct article_t *p_next; // next article          struct article_t *p_next;                // next article
42          struct article_t * p_topic_prior; // same topic          struct article_t *p_topic_prior; // same topic
43          struct article_t * p_topic_next; // same topic          struct article_t *p_topic_next;  // same topic
44          int8_t visible;          int8_t visible;
45          int8_t excerption;          int8_t excerption;
46          int8_t ontop;          int8_t ontop;
47          int8_t lock;          int8_t lock;
48            int8_t transship;
49          char username[BBS_username_max_len + 1];          char username[BBS_username_max_len + 1];
50          char nickname[BBS_nickname_max_len + 1];          char nickname[BBS_nickname_max_len + 1];
51          char title[BBS_article_title_max_len + 1];          char title[BBS_article_title_max_len + 1];
52            time_t sub_dt;
53  };  };
54  typedef struct article_t ARTICLE;  typedef struct article_t ARTICLE;
55    
56  struct article_block_t  struct section_list_t
 {  
         ARTICLE articles[BBS_article_limit_per_block];  
         int32_t article_count;  
         struct article_block_t *p_next_block;  
 };  
 typedef struct article_block_t ARTICLE_BLOCK;  
   
 struct section_data_t  
57  {  {
58          int32_t sid;          int32_t sid;
59            int32_t class_id;
60            int8_t enable;
61          char sname[BBS_section_name_max_len + 1];          char sname[BBS_section_name_max_len + 1];
62          char stitle[BBS_section_title_max_len + 1];          char stitle[BBS_section_title_max_len + 1];
63          char master_name[BBS_username_max_len + 1];          char master_list[(BBS_username_max_len + 1) * 3 + 1];
64          ARTICLE_BLOCK *p_head_block;          int read_user_level;
65          ARTICLE_BLOCK *p_tail_block;          int write_user_level;
         ARTICLE_BLOCK *p_block[BBS_article_block_limit_per_section];  
         int32_t block_count;  
         int32_t block_head_aid[BBS_article_block_limit_per_section];  
66          int32_t article_count;          int32_t article_count;
67          int32_t delete_count;          int32_t topic_count;
68            int32_t visible_article_count;
69            int32_t visible_topic_count;
70          ARTICLE *p_article_head;          ARTICLE *p_article_head;
71          ARTICLE *p_article_tail;          ARTICLE *p_article_tail;
72            ARTICLE *p_page_first_article[BBS_article_limit_per_section / BBS_article_limit_per_page];
73            int32_t page_count;
74            int32_t last_page_visible_article_count;
75            ARTICLE *p_ontop_articles[BBS_ontop_article_limit_per_section];
76            int32_t ontop_article_count;
77            MENU_SET ex_menu_set;
78            time_t ex_menu_tm;
79  };  };
80  typedef struct section_data_t SECTION_DATA;  typedef struct section_list_t SECTION_LIST;
81    
82    struct section_list_pool_t
83    {
84            int shmid;
85            SECTION_LIST sections[BBS_max_section];
86            int section_count;
87            int semid;
88            TRIE_NODE *p_trie_dict_section_by_name;
89            TRIE_NODE *p_trie_dict_section_by_sid;
90    };
91    typedef struct section_list_pool_t SECTION_LIST_POOL;
92    
93    extern SECTION_LIST_POOL *p_section_list_pool;
94    
95    // article_block_count * ARTICLE_PER_BLOCK should be
96    // no less than BBS_article_limit_per_section * BBS_max_section,
97    // in order to allocate enough memory for blocks
98    extern int article_block_init(const char *filename, int block_count);
99    extern void article_block_cleanup(void);
100    
101    extern int set_article_block_shm_readonly(void);
102    extern int detach_article_block_shm(void);
103    
104    extern int article_block_reset(void);
105    
106    extern ARTICLE *article_block_find_by_aid(int32_t aid);
107    extern ARTICLE *article_block_find_by_index(int index);
108    
109    extern int32_t article_block_last_aid(void);
110    extern int article_block_article_count(void);
111    
112    extern int article_count_of_topic(int32_t aid);
113    
114    extern int section_list_init(const char *filename);
115    extern void section_list_cleanup(void);
116    
117    extern int set_section_list_shm_readonly(void);
118    extern int detach_section_list_shm(void);
119    
120    extern SECTION_LIST *section_list_create(int32_t sid, const char *sname, const char *stitle, const char *master_list);
121    extern int section_list_update(SECTION_LIST *p_section, const char *sname, const char *stitle, const char *master_list);
122    extern void section_list_reset_articles(SECTION_LIST *p_section);
123    extern SECTION_LIST *section_list_find_by_name(const char *sname);
124    extern SECTION_LIST *section_list_find_by_sid(int32_t sid);
125    extern int get_section_index(SECTION_LIST *p_section);
126    
127    // sname could be NULL, or pointer to char[] in size >= sizeof(SECTION_LIST.sname)
128    // stitle could be NULL, or pointer to char[] in size >= sizeof(SECTION_LIST.stitle)
129    // master_list could be NULL, or pointer to char[] in size >= sizeof(SECTION_LIST.master_list)
130    extern int get_section_info(SECTION_LIST *p_section, char *sname, char *stitle, char *master_list);
131    
132    extern int section_list_append_article(SECTION_LIST *p_section, const ARTICLE *p_article_src);
133    extern int section_list_set_article_visible(SECTION_LIST *p_section, int32_t aid, int8_t visible);
134    
135    extern int section_list_update_article_ontop(SECTION_LIST *p_section, ARTICLE *p_article);
136    extern int section_list_page_count_with_ontop(SECTION_LIST *p_section);
137    extern int section_list_page_article_count_with_ontop(SECTION_LIST *p_section, int32_t page_id);
138    
139    // *p_page, *p_offset will be set as page / offset of the article with aid in *p_section (including both visible and invisible articles)
140    // *pp_next will be set as pointer to the next article of the article with aid
141    // *pp_next will be set as head article of the section if the article with aid locates at the tail of the section
142    extern ARTICLE *section_list_find_article_with_offset(SECTION_LIST *p_section, int32_t aid, int32_t *p_page, int32_t *p_offset, ARTICLE **pp_next);
143    
144    extern int section_list_calculate_page(SECTION_LIST *p_section, int32_t start_aid);
145    extern int section_list_move_topic(SECTION_LIST *p_section_src, SECTION_LIST *p_section_dest, int32_t aid);
146    
147  extern int section_data_pool_init(const char *filename, int article_block_count);  extern int section_list_try_rd_lock(SECTION_LIST *p_section, int wait_sec);
148  extern void section_data_pool_cleanup(void);  extern int section_list_try_rw_lock(SECTION_LIST *p_section, int wait_sec);
149    extern int section_list_rd_unlock(SECTION_LIST *p_section);
150    extern int section_list_rw_unlock(SECTION_LIST *p_section);
151    extern int section_list_rd_lock(SECTION_LIST *p_section);
152    extern int section_list_rw_lock(SECTION_LIST *p_section);
153    
154  extern SECTION_DATA *section_data_create(const char *sname, const char *stitle, const char *master_name);  #endif //_SECTION_LIST_H_
 extern int section_data_free_block(SECTION_DATA *p_section);  
 extern SECTION_DATA *section_data_find_section_by_name(const char *sname);  
   
 extern int section_data_append_article(SECTION_DATA *p_section, const ARTICLE *p_article_src);  
 extern ARTICLE *section_data_find_article_by_aid(SECTION_DATA *p_section, int32_t aid);  
 extern ARTICLE *section_data_find_article_by_index(SECTION_DATA *p_section, int index);  
 extern int section_data_mark_del_article(SECTION_DATA *p_section, int32_t aid);  

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