/* -*- 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