net/socket/tcp_socket.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef NET_SOCKET_TCP_SOCKET_H_
   6 #define NET_SOCKET_TCP_SOCKET_H_
   7
   8 #include "build/build_config.h"
   9 #include "net/base/net_export.h"
  10
  11 #if defined(OS_WIN)
  12 #include "net/socket/tcp_socket_win.h"
  13 #elif defined(OS_POSIX)
  14 #include "net/socket/tcp_socket_libevent.h"
  15 #endif
  16
  17 namespace net {
  18
  19 // TCPSocket provides a platform-independent interface for TCP sockets.
  20 //
  21 // It is recommended to use TCPClientSocket/TCPServerSocket instead of this
  22 // class, unless a clear separation of client and server socket functionality is
  23 // not suitable for your use case (e.g., a socket needs to be created and bound
  24 // before you know whether it is a client or server socket).
  25 #if defined(OS_WIN)
  26 typedef TCPSocketWin TCPSocket;
  27 #elif defined(OS_POSIX)
  28 typedef TCPSocketLibevent TCPSocket;
  29 #endif
  30
  31 // Check if TCP FastOpen is supported by the OS.
  32 bool IsTCPFastOpenSupported();
  33
  34 // Check if TCP FastOpen is enabled by the user.
  35 bool IsTCPFastOpenUserEnabled();
  36
  37 // Checks if TCP FastOpen is supported by the kernel. Also enables TFO for all
  38 // connections if indicated by user.
  39 // Not thread safe.  Must be called during initialization/startup only.
  40 NET_EXPORT void CheckSupportAndMaybeEnableTCPFastOpen(bool user_enabled);
  41
  42 }  // namespace net
  43
  44 #endif  // NET_SOCKET_TCP_SOCKET_H_