/* * Copyright 2016-present Facebook, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #pragma once #include <folly/portability/Sockets.h> #include <sys/types.h> #if !defined(FOLLY_ALLOW_TFO) #if defined(__linux__) || defined(__APPLE__) // only allow for linux right now #define FOLLY_ALLOW_TFO 1 #endif #endif namespace folly { namespace detail { /** * tfo_sendto has the same semantics as sendmsg, but is used to * send with TFO data. */ ssize_t tfo_sendmsg(int sockfd, const struct msghdr* msg, int flags); /** * Enable TFO on a listening socket. */ int tfo_enable(int sockfd, size_t max_queue_size); /** * Check if TFO succeeded in being used. */ bool tfo_succeeded(int sockfd); } // namespace detail } // namespace folly