/[LeafOK_CVS]/lbbs/include/section_list.h
ViewVC logotype

Diff of /lbbs/include/section_list.h

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

Revision 1.3 by sysadm, Wed May 21 09:18:17 2025 UTC Revision 1.20 by sysadm, Wed May 28 07:30:23 2025 UTC
# Line 14  Line 14 
14   *                                                                         *   *                                                                         *
15   ***************************************************************************/   ***************************************************************************/
16    
17    #ifndef _SECTION_LIST_H_
18    #define _SECTION_LIST_H_
19    
20  #include "common.h"  #include "common.h"
21  #include "bbs.h"  #include "bbs.h"
22    #include <time.h>
23    
24  #define BBS_article_title_max_len 80  #define BBS_article_title_max_len 80
25    #define BBS_article_limit_per_section 50000
26    #define BBS_article_limit_per_page 20
27    
28  // 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  
29    
30  struct article_t  struct article_t
31  {  {
32          int32_t aid;          int32_t aid;
33          int32_t tid;          int32_t tid;
34            int32_t sid;
35          int32_t cid;          int32_t cid;
36          int32_t uid;          int32_t uid;
37          int32_t prior_aid;          struct article_t *p_prior;               // prior article
38          int32_t next_aid;          struct article_t *p_next;                // next article
39            struct article_t *p_topic_prior; // same topic
40            struct article_t *p_topic_next;  // same topic
41          int8_t visible;          int8_t visible;
42          int8_t excerption;          int8_t excerption;
43          int8_t ontop;          int8_t ontop;
44          int8_t lock;          int8_t lock;
45            int8_t transship;
46          char username[BBS_username_max_len + 1];          char username[BBS_username_max_len + 1];
47          char nickname[BBS_nickname_max_len + 1];          char nickname[BBS_nickname_max_len + 1];
48          char title[BBS_article_title_max_len + 1];          char title[BBS_article_title_max_len + 1];
49            time_t sub_dt;
50  };  };
51  typedef struct article_t ARTICLE;  typedef struct article_t ARTICLE;
52    
53  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  
54  {  {
55          int32_t sid;          int32_t sid;
56            int32_t class_id;
57            int8_t enable;
58          char sname[BBS_section_name_max_len + 1];          char sname[BBS_section_name_max_len + 1];
59          char stitle[BBS_section_title_max_len + 1];          char stitle[BBS_section_title_max_len + 1];
60          char master_name[BBS_username_max_len + 1];          char master_list[(BBS_username_max_len + 1) * 3 + 1];
61          ARTICLE_BLOCK *p_head_block;          int read_user_level;
62          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];  
63          int32_t article_count;          int32_t article_count;
64          int32_t delete_count;          int32_t topic_count;
65            int32_t visible_article_count;
66            int32_t visible_topic_count;
67            ARTICLE *p_article_head;
68            ARTICLE *p_article_tail;
69            ARTICLE *p_page_first_article[BBS_article_limit_per_section / BBS_article_limit_per_page];
70            int32_t page_count;
71            int32_t last_page_visible_article_count;
72  };  };
73  typedef struct section_data_t SECTION_DATA;  typedef struct section_list_t SECTION_LIST;
74    
75    // article_block_count * ARTICLE_PER_BLOCK should be
76    // no less than BBS_article_limit_per_section * BBS_max_section,
77    // in order to allocate enough memory for blocks
78    extern int article_block_init(const char *filename, int block_count);
79    extern void article_block_cleanup(void);
80    
81    extern int set_article_block_shm_readonly(void);
82    extern int detach_article_block_shm(void);
83    
84    extern int article_block_reset(void);
85    
86    extern ARTICLE *article_block_find_by_aid(int32_t aid);
87    extern ARTICLE *article_block_find_by_index(int index);
88    
89    extern int32_t article_block_last_aid(void);
90    extern int article_block_article_count(void);
91    
92    extern int article_count_of_topic(int32_t aid);
93    
94    extern int section_list_init(const char *filename);
95    extern void section_list_cleanup(void);
96    
97    extern int set_section_list_shm_readonly(void);
98    extern int detach_section_list_shm(void);
99    
100    extern SECTION_LIST *section_list_create(int32_t sid, const char *sname, const char *stitle, const char *master_name);
101    extern void section_list_reset_articles(SECTION_LIST *p_section);
102    extern SECTION_LIST *section_list_find_by_name(const char *sname);
103    extern SECTION_LIST *section_list_find_by_sid(int32_t sid);
104    extern int get_section_index(SECTION_LIST *p_section);
105    
106    extern int section_list_append_article(SECTION_LIST *p_section, const ARTICLE *p_article_src);
107    extern int section_list_set_article_visible(SECTION_LIST *p_section, int32_t aid, int8_t visible);
108    
109    // *p_page, *p_offset will be set as page / offset of the article with aid in *p_section (including both visible and invisible articles)
110    // *pp_next will be set as pointer to the next article of the article with aid
111    // *pp_next will be set as head article of the section if the article with aid locates at the tail of the section
112    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);
113    
114    extern int section_list_calculate_page(SECTION_LIST *p_section, int32_t start_aid);
115    extern int section_list_move_topic(SECTION_LIST *p_section_src, SECTION_LIST *p_section_dest, int32_t aid);
116    
117  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);
118  extern void section_data_pool_cleanup(void);  extern int section_list_try_rw_lock(SECTION_LIST *p_section, int wait_sec);
119    extern int section_list_rd_unlock(SECTION_LIST *p_section);
120    extern int section_list_rw_unlock(SECTION_LIST *p_section);
121    extern int section_list_rd_lock(SECTION_LIST *p_section);
122    extern int section_list_rw_lock(SECTION_LIST *p_section);
123    
124  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);  
 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);  

Legend:
Removed lines/characters  
Changed lines/characters
  Added lines/characters
webmaster@leafok.com
 ViewVC Help
Powered by ViewVC 1.3.0-beta1