/[LeafOK_CVS]/lbbs/src/article_cache.c
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Diff of /lbbs/src/article_cache.c

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Revision 1.15 by sysadm, Wed Jun 11 12:31:51 2025 UTC Revision 1.18 by sysadm, Mon Jun 16 14:30:44 2025 UTC
# Line 14  Line 14 
14   *                                                                         *   *                                                                         *
15   ***************************************************************************/   ***************************************************************************/
16    
17    #define _POSIX_C_SOURCE 200809L
18    
19  #include "article_cache.h"  #include "article_cache.h"
20  #include "log.h"  #include "log.h"
21  #include "lml.h"  #include "lml.h"
# Line 24  Line 26 
26  #include <unistd.h>  #include <unistd.h>
27  #include <sys/mman.h>  #include <sys/mman.h>
28  #include <sys/stat.h>  #include <sys/stat.h>
 #include <strings.h>  
 #define _POSIX_C_SOURCE 200809L  
29  #include <string.h>  #include <string.h>
30    #include <time.h>
31    
32  #define ARTICLE_HEADER_MAX_LEN 4096  #define ARTICLE_HEADER_MAX_LEN 4096
33  #define ARTICLE_CONTENT_MAX_LEN 1024 * 1024 * 4 // 4MB  #define ARTICLE_CONTENT_MAX_LEN 1024 * 1024 * 4 // 4MB
# Line 60  inline static int article_cache_path(cha Line 61  inline static int article_cache_path(cha
61  int article_cache_generate(const char *cache_dir, const ARTICLE *p_article, const SECTION_LIST *p_section,  int article_cache_generate(const char *cache_dir, const ARTICLE *p_article, const SECTION_LIST *p_section,
62                                                     const char *content, const char *sub_ip, int overwrite)                                                     const char *content, const char *sub_ip, int overwrite)
63  {  {
64            static char *content_f; // static buffer in large size
65    
66          char data_file[FILE_PATH_LEN];          char data_file[FILE_PATH_LEN];
67          int fd;          int fd;
68          ARTICLE_CACHE cache;          ARTICLE_CACHE cache;
# Line 68  int article_cache_generate(const char *c Line 71  int article_cache_generate(const char *c
71          char header[ARTICLE_HEADER_MAX_LEN];          char header[ARTICLE_HEADER_MAX_LEN];
72          size_t header_len;          size_t header_len;
73          long header_line_cnt;          long header_line_cnt;
         char content_f[ARTICLE_CONTENT_MAX_LEN];  
74          char footer[ARTICLE_FOOTER_MAX_LEN];          char footer[ARTICLE_FOOTER_MAX_LEN];
75          size_t footer_len;          size_t footer_len;
76          long footer_line_cnt;          long footer_line_cnt;
# Line 80  int article_cache_generate(const char *c Line 82  int article_cache_generate(const char *c
82                  return -1;                  return -1;
83          }          }
84    
85            if (content_f == NULL && (content_f = malloc(ARTICLE_CONTENT_MAX_LEN)) == NULL)
86            {
87                    log_error("malloc(content_f) error: OOM\n");
88                    return -1;
89            }
90    
91          if (article_cache_path(data_file, sizeof(data_file), cache_dir, p_article) < 0)          if (article_cache_path(data_file, sizeof(data_file), cache_dir, p_article) < 0)
92          {          {
93                  log_error("article_cache_path(dir=%s, cid=%d) error\n", cache_dir, p_article->cid);                  log_error("article_cache_path(dir=%s, cid=%d) error\n", cache_dir, p_article->cid);
# Line 101  int article_cache_generate(const char *c Line 109  int article_cache_generate(const char *c
109                  return -2;                  return -2;
110          }          }
111    
112          bzero(&cache, sizeof(cache));          memset(&cache, 0, sizeof(cache));
113    
114          // Generate article header / footer          // Generate article header / footer
115          localtime_r(&(p_article->sub_dt), &tm_sub_dt);          localtime_r(&(p_article->sub_dt), &tm_sub_dt);
# Line 118  int article_cache_generate(const char *c Line 126  int article_cache_generate(const char *c
126          header_len = strnlen(header, sizeof(header));          header_len = strnlen(header, sizeof(header));
127          footer_len = strnlen(footer, sizeof(footer));          footer_len = strnlen(footer, sizeof(footer));
128    
129          header_line_cnt = split_data_lines(header, SCREEN_COLS, cache.line_offsets, MAX_SPLIT_FILE_LINES);          header_line_cnt = split_data_lines(header, SCREEN_COLS, cache.line_offsets, MAX_SPLIT_FILE_LINES, 1);
130    
131          if (header_len != cache.line_offsets[header_line_cnt])          if (header_len != cache.line_offsets[header_line_cnt])
132          {          {
# Line 130  int article_cache_generate(const char *c Line 138  int article_cache_generate(const char *c
138          cache.data_len = header_len + (size_t)lml_plain(content, content_f, ARTICLE_CONTENT_MAX_LEN);          cache.data_len = header_len + (size_t)lml_plain(content, content_f, ARTICLE_CONTENT_MAX_LEN);
139    
140          cache.line_total = header_line_cnt +          cache.line_total = header_line_cnt +
141                                             split_data_lines(content_f, SCREEN_COLS, cache.line_offsets + header_line_cnt, MAX_SPLIT_FILE_LINES - header_line_cnt);                                             split_data_lines(content_f, SCREEN_COLS, cache.line_offsets + header_line_cnt, MAX_SPLIT_FILE_LINES - header_line_cnt, 1);
142    
143          if (cache.data_len - header_len != (size_t)cache.line_offsets[cache.line_total])          if (cache.data_len - header_len != (size_t)cache.line_offsets[cache.line_total])
144          {          {
# Line 144  int article_cache_generate(const char *c Line 152  int article_cache_generate(const char *c
152                  cache.line_offsets[i] += (long)header_len;                  cache.line_offsets[i] += (long)header_len;
153          }          }
154    
155          footer_line_cnt = split_data_lines(footer, SCREEN_COLS, cache.line_offsets + cache.line_total, MAX_SPLIT_FILE_LINES - cache.line_total);          footer_line_cnt = split_data_lines(footer, SCREEN_COLS, cache.line_offsets + cache.line_total, MAX_SPLIT_FILE_LINES - cache.line_total, 1);
156    
157          if (footer_len != cache.line_offsets[cache.line_total + footer_line_cnt])          if (footer_len != cache.line_offsets[cache.line_total + footer_line_cnt])
158          {          {
# Line 249  int article_cache_load(ARTICLE_CACHE *p_ Line 257  int article_cache_load(ARTICLE_CACHE *p_
257                  return -3;                  return -3;
258          }          }
259    
260          bzero(p_cache, sizeof(*p_cache));          memset(p_cache, 0, sizeof(*p_cache));
261          memcpy((void *)p_cache, p_mmap, (size_t)(((ARTICLE_CACHE *)p_mmap)->mmap_len - ((ARTICLE_CACHE *)p_mmap)->data_len));          memcpy((void *)p_cache, p_mmap, (size_t)(((ARTICLE_CACHE *)p_mmap)->mmap_len - ((ARTICLE_CACHE *)p_mmap)->data_len));
262    
263          p_cache->p_mmap = p_mmap;          p_cache->p_mmap = p_mmap;

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