future promise支持输出到statsd。

platform/test/test_key_keeper.cpp

@@ -16,7 +16,7 @@ struct key_keeper_ctx{
 int main()
 {
 	void* logger = NULL;
-	future_promise_library_init();
+	future_promise_library_init(NULL);
 	//struct event_base* evbase = event_base_new();
 	struct key_keeper * keeper = key_keeper_init("./conf/tfe.conf", "key_keeper", logger);
 	struct key_keeper_ctx* ctx = (struct key_keeper_ctx*)malloc(sizeof(struct key_keeper_ctx));