2 * Copyright 2017 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <folly/portability/Sockets.h>
20 #include <sys/types.h>
22 #if !defined(FOLLY_ALLOW_TFO)
23 #if defined(__linux__) || defined(__APPLE__)
24 // only allow for linux right now
25 #define FOLLY_ALLOW_TFO 1
33 * tfo_sendto has the same semantics as sendmsg, but is used to
36 ssize_t tfo_sendmsg(int sockfd, const struct msghdr* msg, int flags);
39 * Enable TFO on a listening socket.
41 int tfo_enable(int sockfd, size_t max_queue_size);
44 * Check if TFO succeeded in being used.
46 bool tfo_succeeded(int sockfd);