/[LeafOK_CVS]/lbbs/include/section_list.h
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Revision 1.5 by sysadm, Thu May 22 06:20:47 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  #define BBS_article_limit_per_section 50000
# Line 27  struct article_t Line 31  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          struct article_t *p_prior;               // prior article          struct article_t *p_prior;               // prior article
# Line 37  struct article_t Line 42  struct article_t
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 section_list_t  struct section_list_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            int read_user_level;
62            int write_user_level;
63          int32_t article_count;          int32_t article_count;
64            int32_t topic_count;
65            int32_t visible_article_count;
66            int32_t visible_topic_count;
67          ARTICLE *p_article_head;          ARTICLE *p_article_head;
68          ARTICLE *p_article_tail;          ARTICLE *p_article_tail;
69          ARTICLE *p_page_first_article[BBS_article_limit_per_section / BBS_article_limit_per_page];          ARTICLE *p_page_first_article[BBS_article_limit_per_section / BBS_article_limit_per_page];
70          int32_t page_count;          int32_t page_count;
71          int32_t last_page_article_count;          int32_t last_page_visible_article_count;
72  };  };
73  typedef struct section_list_t SECTION_LIST;  typedef struct section_list_t SECTION_LIST;
74    
# Line 63  typedef struct section_list_t SECTION_LI Line 77  typedef struct section_list_t SECTION_LI
77  // in order to allocate enough memory for blocks  // in order to allocate enough memory for blocks
78  extern int article_block_init(const char *filename, int block_count);  extern int article_block_init(const char *filename, int block_count);
79  extern void article_block_cleanup(void);  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);  extern int article_block_reset(void);
85    
86  extern ARTICLE *article_block_find_by_aid(int32_t aid);  extern ARTICLE *article_block_find_by_aid(int32_t aid);
87  extern ARTICLE *article_block_find_by_index(int index);  extern ARTICLE *article_block_find_by_index(int index);
88    
89  extern SECTION_LIST *section_list_create(const char *sname, const char *stitle, const char *master_name);  extern int32_t article_block_last_aid(void);
90  extern void section_list_reset_articles(SECTION_LIST *p_section);  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);  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);  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);  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);  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_list_try_rd_lock(SECTION_LIST *p_section, int wait_sec);
118    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    #endif //_SECTION_LIST_H_

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