[Minor] Save symbols cache on reload

src/libserver/symbols_cache.c

@@ -826,14 +826,9 @@ rspamd_symbols_cache_add_condition_delayed (struct symbols_cache *cache,
 	return TRUE;
 }
 
-
 void
-rspamd_symbols_cache_destroy (struct symbols_cache *cache)
+rspamd_symbols_cache_save (struct symbols_cache *cache)
 {
-	GList *cur;
-	struct delayed_cache_dependency *ddep;
-	struct delayed_cache_condition *dcond;
-
 	if (cache != NULL) {
 
 		if (cache->cfg->cache_filename) {
@@ -844,6 +839,18 @@ rspamd_symbols_cache_destroy (struct symbols_cache *cache)
 						cache->cfg->cache_filename);
 			}
 		}
+	}
+}
+
+void
+rspamd_symbols_cache_destroy (struct symbols_cache *cache)
+{
+	GList *cur;
+	struct delayed_cache_dependency *ddep;
+	struct delayed_cache_condition *dcond;
+
+	if (cache != NULL) {
+		rspamd_symbols_cache_save (cache);
 
 		if (cache->delayed_deps) {
 			cur = cache->delayed_deps;

src/libserver/symbols_cache.h

@@ -61,6 +61,12 @@ struct symbols_cache* rspamd_symbols_cache_new (struct rspamd_config *cfg);
  */
 void rspamd_symbols_cache_destroy (struct symbols_cache *cache);
 
+/**
+ * Saves symbols cache to disk if possible
+ * @param cache
+ */
+void rspamd_symbols_cache_save (struct symbols_cache *cache);
+
 /**
  * Load symbols cache from file, must be called _after_ init_symbols_cache
  */

src/rspamd.c

@@ -273,6 +273,7 @@ reread_config (struct rspamd_main *rspamd_main)
 	struct rspamd_config *tmp_cfg, *old_cfg;
 	gchar *cfg_file;
 
+	rspamd_symbols_cache_save (rspamd_main->cfg->cache);
 	tmp_cfg = rspamd_config_new ();
 	g_hash_table_unref (tmp_cfg->c_modules);
 	tmp_cfg->c_modules = g_hash_table_ref (rspamd_main->cfg->c_modules);