static gboolean
mmap_cache_file (struct symbols_cache *cache, gint fd, rspamd_mempool_t *pool)
{
guint8 *map;
gint i;
GList *cur;
struct cache_item *item;
if (cache->used_items > 0) {
map = mmap (NULL,
cache->used_items * sizeof (struct saved_cache_item),
PROT_READ | PROT_WRITE,
MAP_SHARED,
fd,
0);
if (map == MAP_FAILED) {
msg_err ("cannot mmap cache file: %d, %s", errno, strerror (errno));
close (fd);
return FALSE;
}
/* Close descriptor as it would never be used */
close (fd);
cache->map = map;
/* Now free old values for saved cache items and fill them with mmapped ones */
i = 0;
cur = g_list_first (cache->negative_items);
while (cur) {
item = cur->data;
item->s =
(struct saved_cache_item *)(map + i *
sizeof (struct saved_cache_item));
cur = g_list_next (cur);
i++;
}
cur = g_list_first (cache->static_items);
while (cur) {
item = cur->data;
item->s =
(struct saved_cache_item *)(map + i *
sizeof (struct saved_cache_item));
cur = g_list_next (cur);
i++;
}
post_cache_init (cache);
}
return TRUE;
}
gboolean
rspamd_symbols_cache_validate (struct symbols_cache *cache,
struct rspamd_config *cfg,
gboolean strict)
{
struct cache_item *item;
GList *cur, *metric_symbols;
if (cache == NULL) {
msg_err ("empty cache is invalid");
return FALSE;
}
/* Now adjust symbol weights according to default metric */
if (cfg->default_metric != NULL) {
g_hash_table_foreach (cfg->default_metric->symbols,
rspamd_symbols_cache_metric_validate_cb,
cache);
}
g_hash_table_foreach (cache->items_by_symbol,
rspamd_symbols_cache_validate_cb,
cache);
/* Now check each metric item and find corresponding symbol in a cache */
metric_symbols = g_hash_table_get_keys (cfg->metrics_symbols);
cur = metric_symbols;
while (cur) {
item = g_hash_table_lookup (cache->items_by_symbol, cur->data);
if (item == NULL) {
msg_warn (
"symbol '%s' has its score defined but there is no "
"corresponding rule registered",
cur->data);
if (strict) {
g_list_free (metric_symbols);
return FALSE;
}
}
cur = g_list_next (cur);
}
g_list_free (metric_symbols);
post_cache_init (cache);
return TRUE;
}
gboolean
rspamd_symbols_cache_init (struct symbols_cache* cache,
struct rspamd_config *cfg)
{
gboolean res;
g_assert (cache != NULL);
cache->cfg = cfg;
/* Just in-memory cache */
if (cfg->cache_filename == NULL) {
post_cache_init (cache);
return TRUE;
}
/* Copy saved cache entries */
res = rspamd_symbols_cache_load_items (cache, cfg->cache_filename);
return res;
}
