fune/docshell/base/ChildProcessChannelListener.cpp
Nika Layzell b2ddc107de Bug 1467223 - Part 4: Add support for piping redirected channels through nsDocShell's loading functions, r=qdot
This code largely skips the logic in load methods, and tries to simply get the
channel opened & connected to the correct listener ASAP, without breaking any
loading state.

Depends on D15610

Differential Revision: https://phabricator.services.mozilla.com/D15611

--HG--
extra : moz-landing-system : lando
2019-01-23 21:07:08 +00:00

50 lines
1.6 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "mozilla/dom/ChildProcessChannelListener.h"
namespace mozilla {
namespace dom {
static StaticRefPtr<ChildProcessChannelListener> sCPCLSingleton;
void ChildProcessChannelListener::RegisterCallback(uint64_t aIdentifier,
Callback&& aCallback) {
if (auto channel = mChannels.GetAndRemove(aIdentifier)) {
aCallback(*channel);
} else {
mCallbacks.Put(aIdentifier, std::move(aCallback));
}
}
NS_IMETHODIMP ChildProcessChannelListener::OnChannelReady(
nsIChildChannel* aChannel, uint64_t aIdentifier) {
if (auto callback = mCallbacks.GetAndRemove(aIdentifier)) {
(*callback)(aChannel);
} else {
mChannels.Put(aIdentifier, aChannel);
}
return NS_OK;
}
ChildProcessChannelListener::ChildProcessChannelListener() = default;
ChildProcessChannelListener::~ChildProcessChannelListener() = default;
already_AddRefed<ChildProcessChannelListener>
ChildProcessChannelListener::GetSingleton() {
if (!sCPCLSingleton) {
sCPCLSingleton = new ChildProcessChannelListener();
ClearOnShutdown(&sCPCLSingleton);
}
RefPtr<ChildProcessChannelListener> cpcl = sCPCLSingleton;
return cpcl.forget();
}
NS_IMPL_ISUPPORTS(ChildProcessChannelListener, nsIChildProcessChannelListener);
} // namespace dom
} // namespace mozilla