2 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3 * Copyright (C) 1999-2001 Hiroyuki Yamamoto
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
39 GHashTable *msgnum_table;
40 GHashTable *msgid_table;
45 MsgCache *msgcache_new(void)
49 cache = g_new0(MsgCache, 1),
50 cache->msgnum_table = g_hash_table_new(g_int_hash, g_int_equal);
51 cache->msgid_table = g_hash_table_new(g_str_hash, g_str_equal);
52 cache->last_access = time(NULL);
57 static gboolean msgcache_msginfo_free_func(gpointer num, gpointer msginfo, gpointer user_data)
59 procmsg_msginfo_free((MsgInfo *)msginfo);
63 void msgcache_destroy(MsgCache *cache)
65 g_return_if_fail(cache != NULL);
67 g_hash_table_foreach_remove(cache->msgnum_table, msgcache_msginfo_free_func, NULL);
68 g_hash_table_destroy(cache->msgid_table);
69 g_hash_table_destroy(cache->msgnum_table);
73 void msgcache_add_msg(MsgCache *cache, MsgInfo *msginfo)
77 g_return_if_fail(cache != NULL);
78 g_return_if_fail(msginfo != NULL);
80 newmsginfo = procmsg_msginfo_new_ref(msginfo);
81 g_hash_table_insert(cache->msgnum_table, &newmsginfo->msgnum, newmsginfo);
82 if(newmsginfo->msgid != NULL)
83 g_hash_table_insert(cache->msgid_table, newmsginfo->msgid, newmsginfo);
84 cache->memusage += procmsg_msginfo_memusage(msginfo);
85 cache->last_access = time(NULL);
87 debug_print("Cache size: %d messages, %d byte\n", g_hash_table_size(cache->msgnum_table), cache->memusage);
90 void msgcache_remove_msg(MsgCache *cache, guint msgnum)
94 g_return_if_fail(cache != NULL);
95 g_return_if_fail(msgnum > 0);
97 msginfo = (MsgInfo *) g_hash_table_lookup(cache->msgnum_table, &msgnum);
101 cache->memusage -= procmsg_msginfo_memusage(msginfo);
103 g_hash_table_remove(cache->msgid_table, msginfo->msgid);
104 g_hash_table_remove(cache->msgnum_table, &msginfo->msgnum);
105 procmsg_msginfo_free(msginfo);
106 cache->last_access = time(NULL);
108 debug_print("Cache size: %d messages, %d byte\n", g_hash_table_size(cache->msgnum_table), cache->memusage);
111 void msgcache_update_msg(MsgCache *cache, MsgInfo *msginfo)
113 MsgInfo *oldmsginfo, *newmsginfo;
115 g_return_if_fail(cache != NULL);
116 g_return_if_fail(msginfo != NULL);
118 oldmsginfo = g_hash_table_lookup(cache->msgnum_table, &msginfo->msgnum);
120 g_hash_table_remove(cache->msgid_table, oldmsginfo->msgid);
121 g_hash_table_remove(cache->msgnum_table, &oldmsginfo->msgnum);
122 procmsg_msginfo_free(oldmsginfo);
124 cache->memusage -= procmsg_msginfo_memusage(oldmsginfo);
126 newmsginfo = procmsg_msginfo_new_ref(msginfo);
127 g_hash_table_insert(cache->msgnum_table, &newmsginfo->msgnum, newmsginfo);
128 if(newmsginfo->msgid)
129 g_hash_table_insert(cache->msgid_table, newmsginfo->msgid, newmsginfo);
130 cache->memusage += procmsg_msginfo_memusage(newmsginfo);
131 cache->last_access = time(NULL);
133 debug_print("Cache size: %d messages, %d byte\n", g_hash_table_size(cache->msgnum_table), cache->memusage);
138 MsgInfo *msgcache_get_msg(MsgCache *cache, guint num)
142 g_return_val_if_fail(cache != NULL, NULL);
144 msginfo = g_hash_table_lookup(cache->msgnum_table, &num);
147 cache->last_access = time(NULL);
149 return procmsg_msginfo_new_ref(msginfo);
152 MsgInfo *msgcache_get_msg_by_id(MsgCache *cache, const gchar *msgid)
156 g_return_val_if_fail(cache != NULL, NULL);
157 g_return_val_if_fail(msgid != NULL, NULL);
159 msginfo = g_hash_table_lookup(cache->msgid_table, msgid);
162 cache->last_access = time(NULL);
164 return procmsg_msginfo_new_ref(msginfo);
167 static void msgcache_get_msg_list_func(gpointer key, gpointer value, gpointer user_data)
169 MsgInfoList **listptr = user_data;
170 MsgInfo *msginfo = value;
172 *listptr = g_slist_prepend(*listptr, procmsg_msginfo_new_ref(msginfo));
175 MsgInfoList *msgcache_get_msg_list(MsgCache *cache)
177 MsgInfoList *msg_list = NULL;
179 g_return_val_if_fail(cache != NULL, NULL);
181 g_hash_table_foreach((GHashTable *)cache->msgnum_table, msgcache_get_msg_list_func, (gpointer)&msg_list);
182 cache->last_access = time(NULL);
184 msg_list = g_slist_reverse(msg_list);
189 time_t msgcache_get_last_access_time(MsgCache *cache)
191 g_return_val_if_fail(cache != NULL, 0);
193 return cache->last_access;
196 gint msgcache_get_memory_usage(MsgCache *cache)
198 g_return_val_if_fail(cache != NULL, 0);
200 return cache->memusage;
204 * Cache saving functions
207 #define READ_CACHE_DATA(data, fp) \
209 if (msgcache_read_cache_data_str(fp, &data) < 0) { \
210 procmsg_msginfo_free(msginfo); \
216 #define READ_CACHE_DATA_INT(n, fp) \
218 if (fread(&n, sizeof(n), 1, fp) != 1) { \
219 g_warning("Cache data is corrupted\n"); \
220 procmsg_msginfo_free(msginfo); \
226 #define WRITE_CACHE_DATA_INT(n, fp) \
227 fwrite(&n, sizeof(n), 1, fp)
229 #define WRITE_CACHE_DATA(data, fp) \
235 len = strlen(data); \
236 WRITE_CACHE_DATA_INT(len, fp); \
238 fwrite(data, len, 1, fp); \
242 static FILE *msgcache_open_data_file(const gchar *file, gint version,
244 gchar *buf, size_t buf_size)
249 g_return_val_if_fail(file != NULL, NULL);
251 if (mode == DATA_WRITE) {
252 if ((fp = fopen(file, "wb")) == NULL) {
253 FILE_OP_ERROR(file, "fopen");
256 if (change_file_mode_rw(fp, file) < 0)
257 FILE_OP_ERROR(file, "chmod");
259 WRITE_CACHE_DATA_INT(version, fp);
264 if ((fp = fopen(file, "rb")) == NULL)
265 debug_print("Mark/Cache file not found\n");
267 if (buf && buf_size > 0)
268 setvbuf(fp, buf, _IOFBF, buf_size);
269 if (fread(&data_ver, sizeof(data_ver), 1, fp) != 1 ||
270 version != data_ver) {
271 debug_print("Mark/Cache version is different (%d != %d). "
272 "Discarding it.\n", data_ver, version);
278 if (mode == DATA_READ)
282 /* reopen with append mode */
284 if ((fp = fopen(file, "ab")) == NULL)
285 FILE_OP_ERROR(file, "fopen");
287 /* open with overwrite mode if mark file doesn't exist or
288 version is different */
289 fp = msgcache_open_data_file(file, version, DATA_WRITE, buf,
296 static gint msgcache_read_cache_data_str(FILE *fp, gchar **str)
302 if (fread(&len, sizeof(len), 1, fp) == 1) {
309 size_t size = MIN(len, BUFFSIZE - 1);
311 if (fread(buf, size, 1, fp) != 1) {
313 if (tmp) g_free(tmp);
320 *str = g_strconcat(tmp, buf, NULL);
324 tmp = *str = g_strdup(buf);
333 g_warning("Cache data is corrupted\n");
338 MsgCache *msgcache_read_cache(FolderItem *item, const gchar *cache_file)
343 MsgTmpFlags tmp_flags = 0;
344 gchar file_buf[BUFFSIZE];
346 gboolean error = FALSE;
348 g_return_val_if_fail(cache_file != NULL, NULL);
349 g_return_val_if_fail(item != NULL, NULL);
351 if ((fp = msgcache_open_data_file
352 (cache_file, CACHE_VERSION, DATA_READ, file_buf, sizeof(file_buf))) == NULL)
355 debug_print("\tReading message cache from %s...\n", cache_file);
357 if (item->stype == F_QUEUE) {
358 tmp_flags |= MSG_QUEUED;
359 } else if (item->stype == F_DRAFT) {
360 tmp_flags |= MSG_DRAFT;
363 cache = msgcache_new();
365 g_hash_table_freeze(cache->msgnum_table);
367 while (fread(&num, sizeof(num), 1, fp) == 1) {
368 msginfo = procmsg_msginfo_new();
369 msginfo->msgnum = num;
370 READ_CACHE_DATA_INT(msginfo->size, fp);
371 READ_CACHE_DATA_INT(msginfo->mtime, fp);
372 READ_CACHE_DATA_INT(msginfo->date_t, fp);
373 READ_CACHE_DATA_INT(msginfo->flags.tmp_flags, fp);
375 READ_CACHE_DATA(msginfo->fromname, fp);
377 READ_CACHE_DATA(msginfo->date, fp);
378 READ_CACHE_DATA(msginfo->from, fp);
379 READ_CACHE_DATA(msginfo->to, fp);
380 READ_CACHE_DATA(msginfo->cc, fp);
381 READ_CACHE_DATA(msginfo->newsgroups, fp);
382 READ_CACHE_DATA(msginfo->subject, fp);
383 READ_CACHE_DATA(msginfo->msgid, fp);
384 READ_CACHE_DATA(msginfo->inreplyto, fp);
385 READ_CACHE_DATA(msginfo->references, fp);
386 READ_CACHE_DATA(msginfo->xref, fp);
388 msginfo->folder = item;
389 msginfo->flags.tmp_flags |= tmp_flags;
391 g_hash_table_insert(cache->msgnum_table, &msginfo->msgnum, msginfo);
393 g_hash_table_insert(cache->msgid_table, msginfo->msgid, msginfo);
394 cache->memusage += procmsg_msginfo_memusage(msginfo);
399 g_hash_table_thaw(cache->msgnum_table);
400 msgcache_destroy(cache);
404 cache->last_access = time(NULL);
405 g_hash_table_thaw(cache->msgnum_table);
407 debug_print("done. (%d items read)\n", g_hash_table_size(cache->msgnum_table));
408 debug_print("Cache size: %d messages, %d byte\n", g_hash_table_size(cache->msgnum_table), cache->memusage);
413 void msgcache_read_mark(MsgCache *cache, const gchar *mark_file)
417 MsgPermFlags perm_flags;
420 if ((fp = msgcache_open_data_file(mark_file, MARK_VERSION, DATA_READ, NULL, 0)) == NULL)
423 debug_print("\tReading message marks from %s...\n", mark_file);
425 while (fread(&num, sizeof(num), 1, fp) == 1) {
426 if (fread(&perm_flags, sizeof(perm_flags), 1, fp) != 1) break;
428 msginfo = g_hash_table_lookup(cache->msgnum_table, &num);
430 msginfo->flags.perm_flags = perm_flags;
436 void msgcache_write_cache(MsgInfo *msginfo, FILE *fp)
438 MsgTmpFlags flags = msginfo->flags.tmp_flags & MSG_CACHED_FLAG_MASK;
440 WRITE_CACHE_DATA_INT(msginfo->msgnum, fp);
441 WRITE_CACHE_DATA_INT(msginfo->size, fp);
442 WRITE_CACHE_DATA_INT(msginfo->mtime, fp);
443 WRITE_CACHE_DATA_INT(msginfo->date_t, fp);
444 WRITE_CACHE_DATA_INT(flags, fp);
446 WRITE_CACHE_DATA(msginfo->fromname, fp);
448 WRITE_CACHE_DATA(msginfo->date, fp);
449 WRITE_CACHE_DATA(msginfo->from, fp);
450 WRITE_CACHE_DATA(msginfo->to, fp);
451 WRITE_CACHE_DATA(msginfo->cc, fp);
452 WRITE_CACHE_DATA(msginfo->newsgroups, fp);
453 WRITE_CACHE_DATA(msginfo->subject, fp);
454 WRITE_CACHE_DATA(msginfo->msgid, fp);
455 WRITE_CACHE_DATA(msginfo->inreplyto, fp);
456 WRITE_CACHE_DATA(msginfo->references, fp);
457 WRITE_CACHE_DATA(msginfo->xref, fp);
460 static void msgcache_write_flags(MsgInfo *msginfo, FILE *fp)
462 MsgPermFlags flags = msginfo->flags.perm_flags;
464 WRITE_CACHE_DATA_INT(msginfo->msgnum, fp);
465 WRITE_CACHE_DATA_INT(flags, fp);
474 static void msgcache_write_func(gpointer key, gpointer value, gpointer user_data)
477 struct write_fps *write_fps;
479 msginfo = (MsgInfo *)value;
480 write_fps = user_data;
482 msgcache_write_cache(msginfo, write_fps->cache_fp);
483 msgcache_write_flags(msginfo, write_fps->mark_fp);
486 gint msgcache_write(const gchar *cache_file, const gchar *mark_file, MsgCache *cache)
488 struct write_fps write_fps;
490 g_return_val_if_fail(cache_file != NULL, -1);
491 g_return_val_if_fail(mark_file != NULL, -1);
492 g_return_val_if_fail(cache != NULL, -1);
494 write_fps.cache_fp = msgcache_open_data_file(cache_file, CACHE_VERSION,
495 DATA_WRITE, NULL, 0);
496 if (write_fps.cache_fp == NULL)
499 write_fps.mark_fp = msgcache_open_data_file(mark_file, MARK_VERSION,
500 DATA_WRITE, NULL, 0);
501 if (write_fps.mark_fp == NULL) {
502 fclose(write_fps.cache_fp);
506 debug_print("\tWriting message cache to %s and %s...\n", cache_file, mark_file);
508 if (change_file_mode_rw(write_fps.cache_fp, cache_file) < 0)
509 FILE_OP_ERROR(cache_file, "chmod");
511 g_hash_table_foreach(cache->msgnum_table, msgcache_write_func, (gpointer)&write_fps);
513 fclose(write_fps.cache_fp);
514 fclose(write_fps.mark_fp);
516 cache->last_access = time(NULL);
518 debug_print("done.\n");