daemon: added cache.backends() binding

diff --git a/daemon/bindings.c b/daemon/bindings.c
index cff98a205ab664190c4d85798c80ebca99e738c3..f21e3835a8e3536e369b009841047658f03a11b0 100644 (file)
--- a/daemon/bindings.c
+++ b/daemon/bindings.c
@@ -285,6 +285,21 @@ int lib_net(lua_State *L)
        return 1;
 }
 
+/** Return available cached backends. */
+static int cache_backends(lua_State *L)
+{
+       struct engine *engine = engine_luaget(L);
+       storage_registry_t *registry = &engine->storage_registry;
+
+       lua_newtable(L);
+       for (unsigned i = 0; i < registry->len; ++i) {
+               struct storage_api *storage = &registry->at[i];
+               lua_pushboolean(L, storage->api() == kr_cache_storage());
+               lua_setfield(L, -2, storage->prefix);
+       }
+       return 1;
+}
+
 /** Return number of cached records. */
 static int cache_count(lua_State *L)
 {
@@ -377,6 +392,7 @@ static int cache_close(lua_State *L)
 int lib_cache(lua_State *L)
 {
        static const luaL_Reg lib[] = {
+               { "backends", cache_backends },
                { "count",  cache_count },
                { "open",   cache_open },
                { "close",  cache_close },

diff --git a/lib/cache.h b/lib/cache.h
index 83b7225a7e22aec7ad0e360240b8a68d5a4d9fe9..647169caa7416ce32953512b4aad1529ded3c993 100644 (file)
--- a/lib/cache.h
+++ b/lib/cache.h
@@ -105,6 +105,7 @@ struct kr_cache_entry *kr_cache_peek(namedb_txn_t *txn, uint8_t tag, const knot_
  * @param name asset name
  * @param type asset type
  * @param header filled entry header (count, ttl and timestamp)
+ * @param data inserted data
  * @return 0 or an errcode
  */
 int kr_cache_insert(namedb_txn_t *txn, uint8_t tag, const knot_dname_t *name, uint16_t type,