daemon: all Lua bindings return

daemon/bindings.c

@@ -34,11 +34,13 @@
 static int mod_list(lua_State *L)
 {
 	struct engine *engine = engine_luaget(L);
+	lua_newtable(L);
 	for (unsigned i = 0; i < engine->modules.len; ++i) {
 		struct kr_module *module = &engine->modules.at[i];
 		lua_pushstring(L, module->name);
+		lua_rawseti(L, -2, i + 1);
 	}
-	return engine->modules.len;
+	return 1;
 }
 
 /** Load module. */
@@ -57,7 +59,9 @@ static int mod_load(lua_State *L)
 		lua_pushstring(L, kr_strerror(ret));
 		lua_error(L);
 	}
-	return 0;
+
+	lua_pushboolean(L, 1);
+	return 1;
 }
 
 /** Unload module. */
@@ -76,7 +80,9 @@ static int mod_unload(lua_State *L)
 		lua_pushstring(L, kr_strerror(ret));
 		lua_error(L);
 	}
-	return 0;
+
+	lua_pushboolean(L, 1);
+	return 1;
 }
 
 int lib_modules(lua_State *L)
@@ -253,7 +259,8 @@ static int cache_close(lua_State *L)
 		engine->resolver.cache = NULL;
 	}
 
-	return 0;
+	lua_pushboolean(L, 1);
+	return 1;
 }
 
 int lib_cache(lua_State *L)

modules/cachectl/cachectl.c

@@ -54,6 +54,8 @@ static char* get_size(void *env, struct kr_module *module, const char *args)
 	if (ret == 0) {
 		asprintf(&result, "{ \"size\": %d }", storage->count(&txn));
 		kr_cache_txn_abort(&txn);
+	} else {
+		asprintf(&result, "{ \"error\": \"%s\" }", knot_strerror(ret));
 	}
 	
 	return result;