michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * vim: sw=2 ts=8 et :
michael@0:  */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include <unistd.h>
michael@0: 
michael@0: #include <string>
michael@0: 
michael@0: #include "chrome/common/child_process_info.h"
michael@0: 
michael@0: #include "mozilla/ipc/Transport.h"
michael@0: #include "mozilla/ipc/FileDescriptor.h"
michael@0: 
michael@0: using namespace base;
michael@0: using namespace std;
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace ipc {
michael@0: 
michael@0: bool
michael@0: CreateTransport(ProcessHandle /*unused*/, ProcessHandle /*unused*/,
michael@0:                 TransportDescriptor* aOne, TransportDescriptor* aTwo)
michael@0: {
michael@0:   // Gecko doesn't care about this random ID, and the argument to this
michael@0:   // function isn't really necessary, it can be just any random
michael@0:   // pointer value
michael@0:   wstring id = ChildProcessInfo::GenerateRandomChannelID(aOne);
michael@0:   // Use MODE_SERVER to force creation of the socketpair
michael@0:   Transport t(id, Transport::MODE_SERVER, nullptr);
michael@0:   int fd1 = t.GetFileDescriptor();
michael@0:   int fd2, dontcare;
michael@0:   t.GetClientFileDescriptorMapping(&fd2, &dontcare);
michael@0:   if (fd1 < 0 || fd2 < 0) {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   // The Transport closes these fds when it goes out of scope, so we
michael@0:   // dup them here
michael@0:   fd1 = dup(fd1);
michael@0:   fd2 = dup(fd2);
michael@0:   if (fd1 < 0 || fd2 < 0) {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   aOne->mFd = base::FileDescriptor(fd1, true/*close after sending*/);
michael@0:   aTwo->mFd = base::FileDescriptor(fd2, true/*close after sending*/);
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: Transport*
michael@0: OpenDescriptor(const TransportDescriptor& aTd, Transport::Mode aMode)
michael@0: {
michael@0:   return new Transport(aTd.mFd.fd, aMode, nullptr);
michael@0: }
michael@0: 
michael@0: Transport*
michael@0: OpenDescriptor(const FileDescriptor& aFd, Transport::Mode aMode)
michael@0: {
michael@0:   return new Transport(aFd.PlatformHandle(), aMode, nullptr);
michael@0: }
michael@0: 
michael@0: void
michael@0: CloseDescriptor(const TransportDescriptor& aTd)
michael@0: {
michael@0:   close(aTd.mFd.fd);
michael@0: }
michael@0: 
michael@0: } // namespace ipc
michael@0: } // namespace mozilla