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 "base/message_loop.h"
michael@0: #include "chrome/common/child_process_info.h"
michael@0: 
michael@0: #include "mozilla/ipc/Transport.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 aProcOne, ProcessHandle /*unused*/,
michael@0:                 TransportDescriptor* aOne, TransportDescriptor* aTwo)
michael@0: {
michael@0:   // This id is used to name the IPC pipe.  The pointer passed to this
michael@0:   // function isn't significant.
michael@0:   wstring id = ChildProcessInfo::GenerateRandomChannelID(aOne);
michael@0:   // Use MODE_SERVER to force creation of the pipe
michael@0:   Transport t(id, Transport::MODE_SERVER, nullptr);
michael@0:   HANDLE serverPipe = t.GetServerPipeHandle();
michael@0:   if (!serverPipe) {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   // NB: we create the server pipe immediately, instead of just
michael@0:   // grabbing an ID, on purpose.  In the current setup, the client
michael@0:   // needs to connect to an existing server pipe, so to prevent race
michael@0:   // conditions, we create the server side here and then dup it to the
michael@0:   // eventual server process.
michael@0:   HANDLE serverDup;
michael@0:   DWORD access = 0;
michael@0:   DWORD options = DUPLICATE_SAME_ACCESS;
michael@0:   if (!DuplicateHandle(GetCurrentProcess(), serverPipe, aProcOne,
michael@0:                        &serverDup,
michael@0:                        access,
michael@0:                        FALSE/*not inheritable*/,
michael@0:                        options)) {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   aOne->mPipeName = aTwo->mPipeName = id;
michael@0:   aOne->mServerPipe = serverDup;
michael@0:   aTwo->mServerPipe = INVALID_HANDLE_VALUE;
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.mPipeName, aTd.mServerPipe, aMode, nullptr);
michael@0: }
michael@0: 
michael@0: Transport*
michael@0: OpenDescriptor(const FileDescriptor& aFd, Transport::Mode aMode)
michael@0: {
michael@0:   NS_NOTREACHED("Not implemented!");
michael@0:   return nullptr;
michael@0: }
michael@0: 
michael@0: void
michael@0: CloseDescriptor(const TransportDescriptor& aTd)
michael@0: {
michael@0:   CloseHandle(aTd.mServerPipe);
michael@0: }
michael@0: 
michael@0: } // namespace ipc
michael@0: } // namespace mozilla