author Justin Lebar <justin.lebar@gmail.com>
Thu, 15 Dec 2011 15:02:53 -0500
changeset 82701 037728a4556fa505764a3e5609a371536bbeec57
parent 70536 d11b3f7ed46aa0ca0ba48afde08ab2e8a14a7c21
child 94475 f4157e8c410708d76703f19e4dfb61859bfe32d8
permissions -rw-r--r--
Bug 670967 - Part 3: Pass MOZ_PGO_INSTRUMENTED=1 env var during run of instrumented PGO code. r=ted

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: sw=2 ts=8 et :
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at:
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 * the Initial Developer. All Rights Reserved.
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 *   Chris Jones <jones.chris.g@gmail.com>
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 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#include <unistd.h>

#include <string>

#include "chrome/common/child_process_info.h"

#include "mozilla/ipc/Transport.h"

using namespace base;
using namespace std;

namespace mozilla {
namespace ipc {

CreateTransport(ProcessHandle /*unused*/, ProcessHandle /*unused*/,
                TransportDescriptor* aOne, TransportDescriptor* aTwo)
  // Gecko doesn't care about this random ID, and the argument to this
  // function isn't really necessary, it can be just any random
  // pointer value
  wstring id = ChildProcessInfo::GenerateRandomChannelID(aOne);
  // Use MODE_SERVER to force creation of the socketpair
  Transport t(id, Transport::MODE_SERVER, nsnull);
  int fd1 = t.GetServerFileDescriptor();
  int fd2, dontcare;
  t.GetClientFileDescriptorMapping(&fd2, &dontcare);
  if (fd1 < 0 || fd2 < 0) {
    return false;

  // The Transport closes these fds when it goes out of scope, so we
  // dup them here
  fd1 = dup(fd1);
  fd2 = dup(fd2);
  if (fd1 < 0 || fd2 < 0) {
    return false;

  aOne->mFd = FileDescriptor(fd1, true/*close after sending*/);
  aTwo->mFd = FileDescriptor(fd2, true/*close after sending*/);
  return true;

OpenDescriptor(const TransportDescriptor& aTd, Transport::Mode aMode)
  return new Transport(aTd.mFd.fd, aMode, nsnull);

CloseDescriptor(const TransportDescriptor& aTd)

} // namespace ipc
} // namespace mozilla