mirror of
https://github.com/mozilla/gecko-dev.git
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114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "SocketProcessBackgroundChild.h"
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#include "SocketProcessLogging.h"
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#include "mozilla/ipc/Endpoint.h"
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#include "nsThreadUtils.h"
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namespace mozilla::net {
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StaticMutex SocketProcessBackgroundChild::sMutex;
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StaticRefPtr<SocketProcessBackgroundChild>
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SocketProcessBackgroundChild::sInstance;
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StaticRefPtr<nsISerialEventTarget> SocketProcessBackgroundChild::sTaskQueue;
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// static
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RefPtr<SocketProcessBackgroundChild>
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SocketProcessBackgroundChild::GetSingleton() {
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StaticMutexAutoLock lock(sMutex);
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return sInstance;
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}
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// static
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void SocketProcessBackgroundChild::Create(
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ipc::Endpoint<PSocketProcessBackgroundChild>&& aEndpoint) {
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if (NS_WARN_IF(!aEndpoint.IsValid())) {
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MOZ_ASSERT_UNREACHABLE(
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"Can't create SocketProcessBackgroundChild with invalid endpoint");
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return;
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}
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nsCOMPtr<nsISerialEventTarget> transportQueue;
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if (NS_WARN_IF(NS_FAILED(NS_CreateBackgroundTaskQueue(
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"SocketBackgroundChildQueue", getter_AddRefs(transportQueue))))) {
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return;
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}
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RefPtr<SocketProcessBackgroundChild> actor =
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new SocketProcessBackgroundChild();
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transportQueue->Dispatch(NS_NewRunnableFunction(
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"BindSocketBackgroundChild",
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[endpoint = std::move(aEndpoint), actor]() mutable {
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// We checked endpoint validity before the dispatch, so this cannot
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// fail.
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MOZ_ALWAYS_TRUE(endpoint.Bind(actor));
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}));
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// Immediately store the actor and queue into the global.
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// Any messages dispatched to the queue will arrive after it has been bound.
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LOG(("SocketProcessBackgroundChild::Create"));
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StaticMutexAutoLock lock(sMutex);
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MOZ_ASSERT(!sInstance && !sTaskQueue,
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"Cannot initialize SocketProcessBackgroundChild twice!");
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sInstance = actor;
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sTaskQueue = transportQueue;
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}
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// static
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void SocketProcessBackgroundChild::Shutdown() {
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nsCOMPtr<nsISerialEventTarget> taskQueue = TaskQueue();
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if (!taskQueue) {
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return;
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}
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taskQueue->Dispatch(
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NS_NewRunnableFunction("SocketProcessBackgroundChild::Shutdown", []() {
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LOG(("SocketProcessBackgroundChild::Shutdown"));
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StaticMutexAutoLock lock(sMutex);
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sInstance->Close();
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sInstance = nullptr;
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sTaskQueue = nullptr;
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}));
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}
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// static
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already_AddRefed<nsISerialEventTarget>
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SocketProcessBackgroundChild::TaskQueue() {
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StaticMutexAutoLock lock(sMutex);
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return do_AddRef(sTaskQueue);
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}
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// static
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nsresult SocketProcessBackgroundChild::WithActor(
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const char* aName,
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MoveOnlyFunction<void(SocketProcessBackgroundChild*)> aCallback) {
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nsCOMPtr<nsISerialEventTarget> taskQueue = TaskQueue();
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if (!taskQueue) {
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return NS_ERROR_NOT_AVAILABLE;
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}
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return taskQueue->Dispatch(NS_NewRunnableFunction(
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aName, [callback = std::move(aCallback)]() mutable {
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RefPtr<SocketProcessBackgroundChild> actor =
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SocketProcessBackgroundChild::GetSingleton();
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if (actor) {
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callback(actor);
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}
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}));
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}
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SocketProcessBackgroundChild::SocketProcessBackgroundChild() {
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LOG(("SocketProcessBackgroundChild ctor"));
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}
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SocketProcessBackgroundChild::~SocketProcessBackgroundChild() {
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LOG(("SocketProcessBackgroundChild dtor"));
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}
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} // namespace mozilla::net
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