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- /*
- * 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
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