1 | /* |
2 | * Copyright 2016-present Facebook, Inc. |
3 | * |
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 |
7 | * |
8 | * http://www.apache.org/licenses/LICENSE-2.0 |
9 | * |
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. |
15 | */ |
16 | |
17 | #pragma once |
18 | |
19 | #include <sys/types.h> |
20 | |
21 | #include <folly/net/NetworkSocket.h> |
22 | #include <folly/portability/Sockets.h> |
23 | |
24 | #if !defined(FOLLY_ALLOW_TFO) |
25 | #if defined(__linux__) || defined(__APPLE__) |
26 | // only allow for linux right now |
27 | #define FOLLY_ALLOW_TFO 1 |
28 | #endif |
29 | #endif |
30 | |
31 | namespace folly { |
32 | namespace detail { |
33 | /** |
34 | * tfo_sendto has the same semantics as sendmsg, but is used to |
35 | * send with TFO data. |
36 | */ |
37 | ssize_t tfo_sendmsg(NetworkSocket sockfd, const struct msghdr* msg, int flags); |
38 | |
39 | /** |
40 | * Enable TFO on a listening socket. |
41 | */ |
42 | int tfo_enable(NetworkSocket sockfd, size_t max_queue_size); |
43 | |
44 | /** |
45 | * Check if TFO succeeded in being used. |
46 | */ |
47 | bool tfo_succeeded(NetworkSocket sockfd); |
48 | } // namespace detail |
49 | } // namespace folly |
50 | |