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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
*/
/* 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 http://mozilla.org/MPL/2.0/. */
#include "base/message_loop.h"
#include "chrome/common/child_process_info.h"
#include "mozilla/ipc/Transport.h"
using namespace base;
using namespace std;
namespace mozilla {
namespace ipc {
bool
CreateTransport(ProcessHandle aProcOne, ProcessHandle /*unused*/,
TransportDescriptor* aOne, TransportDescriptor* aTwo)
{
// This id is used to name the IPC pipe. The pointer passed to this
// function isn't significant.
wstring id = ChildProcessInfo::GenerateRandomChannelID(aOne);
// Use MODE_SERVER to force creation of the pipe
Transport t(id, Transport::MODE_SERVER, nullptr);
HANDLE serverPipe = t.GetServerPipeHandle();
if (!serverPipe) {
return false;
}
// NB: we create the server pipe immediately, instead of just
// grabbing an ID, on purpose. In the current setup, the client
// needs to connect to an existing server pipe, so to prevent race
// conditions, we create the server side here and then dup it to the
// eventual server process.
HANDLE serverDup;
DWORD access = 0;
DWORD options = DUPLICATE_SAME_ACCESS;
if (!DuplicateHandle(GetCurrentProcess(), serverPipe, aProcOne,
&serverDup,
access,
FALSE/*not inheritable*/,
options)) {
return false;
}
aOne->mPipeName = aTwo->mPipeName = id;
aOne->mServerPipe = serverDup;
aTwo->mServerPipe = INVALID_HANDLE_VALUE;
return true;
}
Transport*
OpenDescriptor(const TransportDescriptor& aTd, Transport::Mode aMode)
{
return new Transport(aTd.mPipeName, aTd.mServerPipe, aMode, nullptr);
}
Transport*
OpenDescriptor(const FileDescriptor& aFd, Transport::Mode aMode)
{
NS_NOTREACHED("Not implemented!");
return nullptr;
}
void
CloseDescriptor(const TransportDescriptor& aTd)
{
CloseHandle(aTd.mServerPipe);
}
} // namespace ipc
} // namespace mozilla
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