author Andrew Halberstadt <>
Thu, 25 May 2017 11:48:03 -0400
changeset 410946 ff64a7889c1fac56d48205fc2fad4eb5aa481a73
parent 408550 c73ef4420951a1fad4b9d91d2216c3e3d3f31baf
child 505383 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1346025 - Move vendored python modules from /python to /third_party/python, r=ted This commit is a simple 'hg mv' and does not contain any file modifications. *** Bug 1346025 - Split vendored modules in python/ to third_party/python/, r=ted *** Bug 1346025 - Update references to moved python modules, r=ted MozReview-Commit-ID: A12RnIFtXju

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at */


  * This is an abstract class for TCP Fast Open - TFO (RFC7413).
  * It is not always safe to use Fast Open. It can be use for requests that
  * are replayable.
  * Middle boxes can block or reset connections that use TFO, therefore a
  * backup connection will be prepared with a delay.
  * In case of blocking such a connection tcp socket will terminate only after
  * a timeout, therefore a backup connection is needed. If connection is refuse
  * the same socketTransport will retry.
  * This is implemented by nsHalfopenSocket.

namespace mozilla {
namespace net {

class TCPFastOpen

  // Check if we have a transaction that is safe to be used with TFO.
  // Connections over TLS are always safe and some http requests (e.g. GET).
  virtual bool FastOpenEnabled() = 0;
  // To use TFO we need to have a transaction prepared, e.g. also have
  // nsHttpConnection ready. This functions is call by nsSocketTransport to
  // setup a connection.
  virtual nsresult StartFastOpen() = 0;
  // Inform nsHalfopenSocket whether a connection using TFO succeeded or not.
  // This will cancel the backup connection and in case of a failure rewind
  // the transaction.
  virtual void SetFastOpenConnected(nsresult error, bool aWillRetry) = 0;
  virtual void FastOpenNotSupported() = 0;
  virtual void SetFastOpenStatus(uint8_t tfoStatus) = 0;


#endif //TCPFASTOPEN_H__