--- /dev/null
+/*
+ * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999-2001 Hiroyuki Yamamoto
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include "defs.h"
+
+#include <glib.h>
+
+#include <time.h>
+
+#include "intl.h"
+#include "msgcache.h"
+#include "utils.h"
+#include "procmsg.h"
+
+struct _MsgCache {
+ GHashTable *msgnum_table;
+ guint memusage;
+ time_t last_access;
+};
+
+MsgCache *msgcache_new()
+{
+ MsgCache *cache;
+
+ cache = g_new0(MsgCache, 1),
+ cache->msgnum_table = g_hash_table_new(NULL, NULL);
+ cache->last_access = time(NULL);
+
+ return cache;
+}
+
+static gboolean msgcache_msginfo_free_func(gpointer num, gpointer msginfo, gpointer user_data)
+{
+ procmsg_msginfo_free((MsgInfo *)msginfo);
+ return TRUE;
+}
+
+void msgcache_destroy(MsgCache *cache)
+{
+ g_return_if_fail(cache != NULL);
+
+ g_hash_table_foreach_remove(cache->msgnum_table, msgcache_msginfo_free_func, NULL);
+ g_hash_table_destroy(cache->msgnum_table);
+ g_free(cache);
+}
+
+void msgcache_add_msg(MsgCache *cache, MsgInfo *msginfo)
+{
+ MsgInfo *newmsginfo;
+
+ g_return_if_fail(cache != NULL);
+ g_return_if_fail(msginfo != NULL);
+
+ newmsginfo = procmsg_msginfo_new_ref(msginfo);
+ g_hash_table_insert(cache->msgnum_table, GINT_TO_POINTER(msginfo->msgnum), newmsginfo);
+ cache->memusage += procmsg_msginfo_memusage(msginfo);
+ cache->last_access = time(NULL);
+
+ debug_print(_("Cache size: %d messages, %d byte\n"), g_hash_table_size(cache->msgnum_table), cache->memusage);
+}
+
+void msgcache_remove_msg(MsgCache *cache, guint msgnum)
+{
+ MsgInfo *msginfo;
+
+ g_return_if_fail(cache != NULL);
+ g_return_if_fail(msgnum > 0);
+
+ msginfo = (MsgInfo *) g_hash_table_lookup(cache->msgnum_table, GINT_TO_POINTER(msgnum));
+ if(!msginfo)
+ return;
+
+ cache->memusage -= procmsg_msginfo_memusage(msginfo);
+ procmsg_msginfo_free(msginfo);
+ g_hash_table_remove(cache->msgnum_table, GINT_TO_POINTER(msgnum));
+ cache->last_access = time(NULL);
+
+ debug_print(_("Cache size: %d messages, %d byte\n"), g_hash_table_size(cache->msgnum_table), cache->memusage);
+}
+
+void msgcache_update_msg(MsgCache *cache, MsgInfo *msginfo)
+{
+ MsgInfo *oldmsginfo, *newmsginfo;
+
+ g_return_if_fail(cache != NULL);
+ g_return_if_fail(msginfo != NULL);
+
+ oldmsginfo = g_hash_table_lookup(cache->msgnum_table, GINT_TO_POINTER(msginfo->msgnum));
+ if(msginfo) {
+ g_hash_table_remove(cache->msgnum_table, GINT_TO_POINTER(oldmsginfo->msgnum));
+ procmsg_msginfo_free(oldmsginfo);
+ }
+ cache->memusage -= procmsg_msginfo_memusage(oldmsginfo);
+
+ newmsginfo = procmsg_msginfo_new_ref(msginfo);
+ g_hash_table_insert(cache->msgnum_table, GINT_TO_POINTER(msginfo->msgnum), newmsginfo);
+ cache->memusage += procmsg_msginfo_memusage(newmsginfo);
+ cache->last_access = time(NULL);
+
+ debug_print(_("Cache size: %d messages, %d byte\n"), g_hash_table_size(cache->msgnum_table), cache->memusage);
+
+ return;
+}
+
+static gint msgcache_read_cache_data_str(FILE *fp, gchar **str)
+{
+ gchar buf[BUFFSIZE];
+ gint ret = 0;
+ size_t len;
+
+ if (fread(&len, sizeof(len), 1, fp) == 1) {
+ if (len < 0)
+ ret = -1;
+ else {
+ gchar *tmp = NULL;
+
+ while (len > 0) {
+ size_t size = MIN(len, BUFFSIZE - 1);
+
+ if (fread(buf, size, 1, fp) != 1) {
+ ret = -1;
+ if (tmp) g_free(tmp);
+ *str = NULL;
+ break;
+ }
+
+ buf[size] = '\0';
+ if (tmp) {
+ *str = g_strconcat(tmp, buf, NULL);
+ g_free(tmp);
+ tmp = *str;
+ } else
+ tmp = *str = g_strdup(buf);
+
+ len -= size;
+ }
+ }
+ } else
+ ret = -1;
+
+ if (ret < 0)
+ g_warning(_("Cache data is corrupted\n"));
+
+ return ret;
+}
+
+
+#define READ_CACHE_DATA(data, fp) \
+{ \
+ if (msgcache_read_cache_data_str(fp, &data) < 0) { \
+ procmsg_msginfo_free(msginfo); \
+ error = TRUE; \
+ break; \
+ } \
+}
+
+#define READ_CACHE_DATA_INT(n, fp) \
+{ \
+ if (fread(&n, sizeof(n), 1, fp) != 1) { \
+ g_warning(_("Cache data is corrupted\n")); \
+ procmsg_msginfo_free(msginfo); \
+ error = TRUE; \
+ break; \
+ } \
+}
+
+MsgCache *msgcache_read_cache(FolderItem *item, const gchar *cache_file)
+{
+ MsgCache *cache;
+ FILE *fp;
+ MsgInfo *msginfo;
+/* MsgFlags default_flags; */
+ gchar file_buf[BUFFSIZE];
+ gint ver;
+ guint num;
+ gboolean error = FALSE;
+
+ g_return_val_if_fail(cache_file != NULL, NULL);
+ g_return_val_if_fail(item != NULL, NULL);
+
+ if ((fp = fopen(cache_file, "r")) == NULL) {
+ debug_print(_("\tNo cache file\n"));
+ return NULL;
+ }
+ setvbuf(fp, file_buf, _IOFBF, sizeof(file_buf));
+
+ debug_print(_("\tReading message cache from %s...\n"), cache_file);
+
+ /* compare cache version */
+ if (fread(&ver, sizeof(ver), 1, fp) != 1 ||
+ CACHE_VERSION != ver) {
+ debug_print(_("Cache version is different. Discarding it.\n"));
+ fclose(fp);
+ return NULL;
+ }
+
+ cache = msgcache_new();
+
+ g_hash_table_freeze(cache->msgnum_table);
+
+ while (fread(&num, sizeof(num), 1, fp) == 1) {
+ msginfo = procmsg_msginfo_new();
+ msginfo->msgnum = num;
+ READ_CACHE_DATA_INT(msginfo->size, fp);
+ READ_CACHE_DATA_INT(msginfo->mtime, fp);
+ READ_CACHE_DATA_INT(msginfo->date_t, fp);
+ READ_CACHE_DATA_INT(msginfo->flags.tmp_flags, fp);
+
+ READ_CACHE_DATA(msginfo->fromname, fp);
+
+ READ_CACHE_DATA(msginfo->date, fp);
+ READ_CACHE_DATA(msginfo->from, fp);
+ READ_CACHE_DATA(msginfo->to, fp);
+ READ_CACHE_DATA(msginfo->cc, fp);
+ READ_CACHE_DATA(msginfo->newsgroups, fp);
+ READ_CACHE_DATA(msginfo->subject, fp);
+ READ_CACHE_DATA(msginfo->msgid, fp);
+ READ_CACHE_DATA(msginfo->inreplyto, fp);
+ READ_CACHE_DATA(msginfo->references, fp);
+ READ_CACHE_DATA(msginfo->xref, fp);
+
+/*
+ MSG_SET_PERM_FLAGS(msginfo->flags, default_flags.perm_flags);
+ MSG_SET_TMP_FLAGS(msginfo->flags, default_flags.tmp_flags);
+*/
+ msginfo->folder = item;
+
+ g_hash_table_insert(cache->msgnum_table, GINT_TO_POINTER(msginfo->msgnum), msginfo);
+ cache->memusage += procmsg_msginfo_memusage(msginfo);
+ }
+ fclose(fp);
+
+ if(error) {
+ g_hash_table_thaw(cache->msgnum_table);
+ msgcache_destroy(cache);
+ return NULL;
+ }
+
+ cache->last_access = time(NULL);
+ g_hash_table_thaw(cache->msgnum_table);
+
+ debug_print(_("done. (%d items read)\n"), g_hash_table_size(cache->msgnum_table));
+ debug_print(_("Cache size: %d messages, %d byte\n"), g_hash_table_size(cache->msgnum_table), cache->memusage);
+
+ return cache;
+}
+
+void msgcache_read_mark(MsgCache *cache, const gchar *mark_file)
+{
+ FILE *fp;
+ MsgInfo *msginfo;
+ MsgPermFlags perm_flags;
+ gint ver;
+ guint num;
+
+ if ((fp = fopen(mark_file, "r")) == NULL) {
+ debug_print(_("Mark file not found.\n"));
+ return;
+ } else if (fread(&ver, sizeof(ver), 1, fp) != 1 || MARK_VERSION != ver) {
+ debug_print(_("Mark version is different (%d != %d). "
+ "Discarding it.\n"), ver, MARK_VERSION);
+ } else {
+ debug_print(_("\tReading message marks from %s...\n"), mark_file);
+
+ while (fread(&num, sizeof(num), 1, fp) == 1) {
+ if (fread(&perm_flags, sizeof(perm_flags), 1, fp) != 1) break;
+
+ msginfo = g_hash_table_lookup(cache->msgnum_table, GUINT_TO_POINTER(num));
+ if(msginfo) {
+ msginfo->flags.perm_flags = perm_flags;
+ }
+ }
+ }
+ fclose(fp);
+}
+
+#define WRITE_CACHE_DATA_INT(n, fp) \
+ fwrite(&n, sizeof(n), 1, fp)
+
+#define WRITE_CACHE_DATA(data, fp) \
+{ \
+ gint len; \
+ \
+ if (data == NULL || (len = strlen(data)) == 0) { \
+ len = 0; \
+ WRITE_CACHE_DATA_INT(len, fp); \
+ } else { \
+ len = strlen(data); \
+ WRITE_CACHE_DATA_INT(len, fp); \
+ fwrite(data, len, 1, fp); \
+ } \
+}
+
+void msgcache_write_cache(MsgInfo *msginfo, FILE *fp)
+{
+ MsgTmpFlags flags = msginfo->flags.tmp_flags & MSG_CACHED_FLAG_MASK;
+
+ WRITE_CACHE_DATA_INT(msginfo->msgnum, fp);
+ WRITE_CACHE_DATA_INT(msginfo->size, fp);
+ WRITE_CACHE_DATA_INT(msginfo->mtime, fp);
+ WRITE_CACHE_DATA_INT(msginfo->date_t, fp);
+ WRITE_CACHE_DATA_INT(flags, fp);
+
+ WRITE_CACHE_DATA(msginfo->fromname, fp);
+
+ WRITE_CACHE_DATA(msginfo->date, fp);
+ WRITE_CACHE_DATA(msginfo->from, fp);
+ WRITE_CACHE_DATA(msginfo->to, fp);
+ WRITE_CACHE_DATA(msginfo->cc, fp);
+ WRITE_CACHE_DATA(msginfo->newsgroups, fp);
+ WRITE_CACHE_DATA(msginfo->subject, fp);
+ WRITE_CACHE_DATA(msginfo->msgid, fp);
+ WRITE_CACHE_DATA(msginfo->inreplyto, fp);
+ WRITE_CACHE_DATA(msginfo->references, fp);
+ WRITE_CACHE_DATA(msginfo->xref, fp);
+}
+
+static void msgcache_write_flags(MsgInfo *msginfo, FILE *fp)
+{
+ MsgPermFlags flags = msginfo->flags.perm_flags;
+
+ WRITE_CACHE_DATA_INT(msginfo->msgnum, fp);
+ WRITE_CACHE_DATA_INT(flags, fp);
+}
+
+struct write_fps
+{
+ FILE *cache_fp;
+ FILE *mark_fp;
+};
+
+static void msgcache_write_func(gpointer key, gpointer value, gpointer user_data)
+{
+ MsgInfo *msginfo;
+ struct write_fps *write_fps;
+
+ msginfo = (MsgInfo *)value;
+ write_fps = user_data;
+
+ msgcache_write_cache(msginfo, write_fps->cache_fp);
+ msgcache_write_flags(msginfo, write_fps->mark_fp);
+}
+
+gint msgcache_write(const gchar *cache_file, const gchar *mark_file, MsgCache *cache)
+{
+ FILE *fp;
+ struct write_fps write_fps;
+ gint ver;
+
+ g_return_val_if_fail(cache_file != NULL, -1);
+ g_return_val_if_fail(mark_file != NULL, -1);
+ g_return_val_if_fail(cache != NULL, -1);
+
+ debug_print(_("\tWriting message cache to %s and %s...\n"), cache_file, mark_file);
+
+ if ((fp = fopen(cache_file, "w")) == NULL) {
+ FILE_OP_ERROR(cache_file, "fopen");
+ return -1;
+ }
+ if (change_file_mode_rw(fp, cache_file) < 0)
+ FILE_OP_ERROR(cache_file, "chmod");
+
+ ver = CACHE_VERSION;
+ WRITE_CACHE_DATA_INT(ver, fp);
+ write_fps.cache_fp = fp;
+
+ if ((fp = fopen(mark_file, "w")) == NULL) {
+ FILE_OP_ERROR(mark_file, "fopen");
+ fclose(write_fps.cache_fp);
+ return -1;
+ }
+
+ ver = MARK_VERSION;
+ WRITE_CACHE_DATA_INT(ver, fp);
+ write_fps.mark_fp = fp;
+
+ g_hash_table_foreach(cache->msgnum_table, msgcache_write_func, (gpointer)&write_fps);
+
+ fclose(write_fps.cache_fp);
+ fclose(write_fps.mark_fp);
+
+ cache->last_access = time(NULL);
+
+ debug_print(_("done.\n"));
+}
+
+MsgInfo *msgcache_get_msg(MsgCache *cache, guint num)
+{
+ MsgInfo *msginfo;
+
+ g_return_val_if_fail(cache != NULL, NULL);
+
+ msginfo = g_hash_table_lookup(cache->msgnum_table, GINT_TO_POINTER(num));
+ if(!msginfo)
+ return NULL;
+ cache->last_access = time(NULL);
+
+ return procmsg_msginfo_new_ref(msginfo);
+}
+
+static void msgcache_get_msg_list_func(gpointer key, gpointer value, gpointer user_data)
+{
+ GSList **listptr = user_data;
+ MsgInfo *msginfo = value;
+
+ *listptr = g_slist_prepend(*listptr, procmsg_msginfo_new_ref(msginfo));
+}
+
+GSList *msgcache_get_msg_list(MsgCache *cache)
+{
+ GSList *msg_list = NULL;
+
+ g_return_val_if_fail(cache != NULL, NULL);
+
+ g_hash_table_foreach((GHashTable *)cache->msgnum_table, msgcache_get_msg_list_func, (gpointer)&msg_list);
+ cache->last_access = time(NULL);
+
+ return msg_list;
+}
+
+time_t msgcache_get_last_access_time(MsgCache *cache)
+{
+ g_return_val_if_fail(cache != NULL, 0);
+
+ return cache->last_access;
+}
+
+gint msgcache_get_memory_usage(MsgCache *cache)
+{
+ g_return_val_if_fail(cache != NULL, 0);
+
+ return cache->memusage;
+}
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