From 29bbf526f4e7d6fe31618901a753ee350fbe03d5 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Tue, 5 Apr 2016 17:26:28 +0100
Subject: [PATCH] [Feature] Add method to get number of symbols in the cache

---
 src/libserver/symbols_cache.c |  8 ++++++++
 src/libserver/symbols_cache.h |  7 +++++++
 src/lua/lua_config.c          | 26 ++++++++++++++++++++++++++
 3 files changed, 41 insertions(+)

diff --git a/src/libserver/symbols_cache.c b/src/libserver/symbols_cache.c
index 862bd0f11..eea7f84b2 100644
--- a/src/libserver/symbols_cache.c
+++ b/src/libserver/symbols_cache.c
@@ -1710,6 +1710,14 @@ rspamd_symbols_cache_symbol_by_id (struct symbols_cache *cache,
 	return item->symbol;
 }
 
+guint
+rspamd_symbols_cache_symbols_count (struct symbols_cache *cache)
+{
+	g_assert (cache != NULL);
+
+	return cache->items_by_id->len;
+}
+
 void
 rspamd_symbols_cache_disable_symbol (struct rspamd_task *task,
 		struct symbols_cache *cache, const gchar *symbol)
diff --git a/src/libserver/symbols_cache.h b/src/libserver/symbols_cache.h
index e19974129..0874ac475 100644
--- a/src/libserver/symbols_cache.h
+++ b/src/libserver/symbols_cache.h
@@ -117,6 +117,13 @@ gint rspamd_symbols_cache_find_symbol (struct symbols_cache *cache,
 const gchar * rspamd_symbols_cache_symbol_by_id (struct symbols_cache *cache,
 		gint id);
 
+/**
+ * Returns number of symbols registered in symbols cache
+ * @param cache
+ * @return number of symbols in the cache
+ */
+guint rspamd_symbols_cache_symbols_count (struct symbols_cache *cache);
+
 /**
  * Call function for cached symbol using saved callback
  * @param task task object
diff --git a/src/lua/lua_config.c b/src/lua/lua_config.c
index cbf68dd07..aa4327b27 100644
--- a/src/lua/lua_config.c
+++ b/src/lua/lua_config.c
@@ -404,6 +404,13 @@ LUA_FUNCTION_DEF (config, register_worker_script);
  */
 LUA_FUNCTION_DEF (config, add_on_load);
 
+/***
+ * @method rspamd_config:get_symbols_count()
+ * Returns number of symbols registered in rspamd configuration
+ * @return {number} number of symbols registered in the configuration
+ */
+LUA_FUNCTION_DEF (config, get_symbols_count);
+
 static const struct luaL_reg configlib_m[] = {
 	LUA_INTERFACE_DEF (config, get_module_opt),
 	LUA_INTERFACE_DEF (config, get_mempool),
@@ -433,6 +440,7 @@ static const struct luaL_reg configlib_m[] = {
 	LUA_INTERFACE_DEF (config, replace_regexp),
 	LUA_INTERFACE_DEF (config, register_worker_script),
 	LUA_INTERFACE_DEF (config, add_on_load),
+	LUA_INTERFACE_DEF (config, get_symbols_count),
 	{"__tostring", rspamd_lua_class_tostring},
 	{"__newindex", lua_config_newindex},
 	{NULL, NULL}
@@ -1702,6 +1710,24 @@ lua_config_add_on_load (lua_State *L)
 	return 0;
 }
 
+static gint
+lua_config_get_symbols_count (lua_State *L)
+{
+	struct rspamd_config *cfg = lua_check_config (L, 1);
+	guint res = 0;
+
+	if (cfg != NULL) {
+		res = rspamd_symbols_cache_symbols_count (cfg->cache);
+	}
+	else {
+		return luaL_error (L, "invalid arguments");
+	}
+
+	lua_pushnumber (L, res);
+
+	return 1;
+}
+
 void
 luaopen_config (lua_State * L)
 {
-- 
2.39.5