1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/glue/Transport_win.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,75 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * vim: sw=2 ts=8 et :
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#include "base/message_loop.h"
1.12 +#include "chrome/common/child_process_info.h"
1.13 +
1.14 +#include "mozilla/ipc/Transport.h"
1.15 +
1.16 +using namespace base;
1.17 +using namespace std;
1.18 +
1.19 +namespace mozilla {
1.20 +namespace ipc {
1.21 +
1.22 +bool
1.23 +CreateTransport(ProcessHandle aProcOne, ProcessHandle /*unused*/,
1.24 + TransportDescriptor* aOne, TransportDescriptor* aTwo)
1.25 +{
1.26 + // This id is used to name the IPC pipe. The pointer passed to this
1.27 + // function isn't significant.
1.28 + wstring id = ChildProcessInfo::GenerateRandomChannelID(aOne);
1.29 + // Use MODE_SERVER to force creation of the pipe
1.30 + Transport t(id, Transport::MODE_SERVER, nullptr);
1.31 + HANDLE serverPipe = t.GetServerPipeHandle();
1.32 + if (!serverPipe) {
1.33 + return false;
1.34 + }
1.35 +
1.36 + // NB: we create the server pipe immediately, instead of just
1.37 + // grabbing an ID, on purpose. In the current setup, the client
1.38 + // needs to connect to an existing server pipe, so to prevent race
1.39 + // conditions, we create the server side here and then dup it to the
1.40 + // eventual server process.
1.41 + HANDLE serverDup;
1.42 + DWORD access = 0;
1.43 + DWORD options = DUPLICATE_SAME_ACCESS;
1.44 + if (!DuplicateHandle(GetCurrentProcess(), serverPipe, aProcOne,
1.45 + &serverDup,
1.46 + access,
1.47 + FALSE/*not inheritable*/,
1.48 + options)) {
1.49 + return false;
1.50 + }
1.51 +
1.52 + aOne->mPipeName = aTwo->mPipeName = id;
1.53 + aOne->mServerPipe = serverDup;
1.54 + aTwo->mServerPipe = INVALID_HANDLE_VALUE;
1.55 + return true;
1.56 +}
1.57 +
1.58 +Transport*
1.59 +OpenDescriptor(const TransportDescriptor& aTd, Transport::Mode aMode)
1.60 +{
1.61 + return new Transport(aTd.mPipeName, aTd.mServerPipe, aMode, nullptr);
1.62 +}
1.63 +
1.64 +Transport*
1.65 +OpenDescriptor(const FileDescriptor& aFd, Transport::Mode aMode)
1.66 +{
1.67 + NS_NOTREACHED("Not implemented!");
1.68 + return nullptr;
1.69 +}
1.70 +
1.71 +void
1.72 +CloseDescriptor(const TransportDescriptor& aTd)
1.73 +{
1.74 + CloseHandle(aTd.mServerPipe);
1.75 +}
1.76 +
1.77 +} // namespace ipc
1.78 +} // namespace mozilla
