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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo
This commit is contained in:
Roy Tam
commit
dcd9973243
150858 changed files with 23884658 additions and 0 deletions
387
dom/media/systemservices/MediaSystemResourceManager.cpp
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387
dom/media/systemservices/MediaSystemResourceManager.cpp
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/TaskQueue.h"
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#include "gfxPrefs.h"
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#include "MediaSystemResourceManagerChild.h"
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#include "mozilla/layers/ImageBridgeChild.h"
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#include "MediaSystemResourceManager.h"
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namespace mozilla {
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using namespace mozilla::ipc;
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using namespace mozilla::layers;
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/* static */ StaticRefPtr<MediaSystemResourceManager> MediaSystemResourceManager::sSingleton;
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/* static */ MediaSystemResourceManager*
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MediaSystemResourceManager::Get()
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{
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if (sSingleton) {
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return sSingleton;
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}
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MediaSystemResourceManager::Init();
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return sSingleton;
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}
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/* static */ void
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MediaSystemResourceManager::Shutdown()
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{
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MOZ_ASSERT(InImageBridgeChildThread());
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if (sSingleton) {
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sSingleton->CloseIPC();
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sSingleton = nullptr;
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}
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}
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/* static */ void
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MediaSystemResourceManager::Init()
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{
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RefPtr<ImageBridgeChild> imageBridge = ImageBridgeChild::GetSingleton();
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if (!imageBridge) {
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NS_WARNING("ImageBridge does not exist");
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return;
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}
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if (InImageBridgeChildThread()) {
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if (!sSingleton) {
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#ifdef DEBUG
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static int timesCreated = 0;
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timesCreated++;
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MOZ_ASSERT(timesCreated == 1);
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#endif
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sSingleton = new MediaSystemResourceManager();
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}
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return;
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}
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ReentrantMonitor barrier("MediaSystemResourceManager::Init");
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ReentrantMonitorAutoEnter mainThreadAutoMon(barrier);
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bool done = false;
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RefPtr<Runnable> runnable =
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NS_NewRunnableFunction([&]() {
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if (!sSingleton) {
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sSingleton = new MediaSystemResourceManager();
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}
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ReentrantMonitorAutoEnter childThreadAutoMon(barrier);
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done = true;
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barrier.NotifyAll();
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});
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imageBridge->GetMessageLoop()->PostTask(runnable.forget());
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// should stop the thread until done.
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while (!done) {
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barrier.Wait();
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}
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}
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MediaSystemResourceManager::MediaSystemResourceManager()
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: mReentrantMonitor("MediaSystemResourceManager.mReentrantMonitor")
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, mShutDown(false)
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, mChild(nullptr)
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{
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MOZ_ASSERT(InImageBridgeChildThread());
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OpenIPC();
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}
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MediaSystemResourceManager::~MediaSystemResourceManager()
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{
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MOZ_ASSERT(IsIpcClosed());
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}
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void
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MediaSystemResourceManager::OpenIPC()
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{
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MOZ_ASSERT(InImageBridgeChildThread());
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MOZ_ASSERT(!mChild);
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media::PMediaSystemResourceManagerChild* child =
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ImageBridgeChild::GetSingleton()->SendPMediaSystemResourceManagerConstructor();
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mChild = static_cast<media::MediaSystemResourceManagerChild*>(child);
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mChild->SetManager(this);
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}
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void
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MediaSystemResourceManager::CloseIPC()
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{
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MOZ_ASSERT(InImageBridgeChildThread());
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if (!mChild) {
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return;
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}
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mChild->Destroy();
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mChild = nullptr;
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mShutDown = true;
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}
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void
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MediaSystemResourceManager::OnIpcClosed()
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{
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mChild = nullptr;
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}
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bool
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MediaSystemResourceManager::IsIpcClosed()
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{
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return mChild ? true : false;
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}
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void
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MediaSystemResourceManager::Register(MediaSystemResourceClient* aClient)
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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MOZ_ASSERT(aClient);
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MOZ_ASSERT(!mResourceClients.Get(aClient->mId));
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mResourceClients.Put(aClient->mId, aClient);
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}
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void
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MediaSystemResourceManager::Unregister(MediaSystemResourceClient* aClient)
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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MOZ_ASSERT(aClient);
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MOZ_ASSERT(mResourceClients.Get(aClient->mId));
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MOZ_ASSERT(mResourceClients.Get(aClient->mId) == aClient);
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mResourceClients.Remove(aClient->mId);
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}
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bool
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MediaSystemResourceManager::SetListener(MediaSystemResourceClient* aClient,
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MediaSystemResourceReservationListener* aListener)
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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MOZ_ASSERT(aClient);
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MediaSystemResourceClient* client = mResourceClients.Get(aClient->mId);
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MOZ_ASSERT(client);
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if (!client) {
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return false;
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}
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// State Check
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if (aClient->mResourceState != MediaSystemResourceClient::RESOURCE_STATE_START) {
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return false;
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}
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aClient->mListener = aListener;
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return true;
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}
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void
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MediaSystemResourceManager::Acquire(MediaSystemResourceClient* aClient)
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{
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MOZ_ASSERT(aClient);
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MOZ_ASSERT(!InImageBridgeChildThread());
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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MediaSystemResourceClient* client = mResourceClients.Get(aClient->mId);
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MOZ_ASSERT(client);
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MOZ_ASSERT(client == aClient);
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aClient->mIsSync = false; // async request
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if (!client) {
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HandleAcquireResult(aClient->mId, false);
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return;
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}
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// State Check
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if (aClient->mResourceState != MediaSystemResourceClient::RESOURCE_STATE_START) {
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HandleAcquireResult(aClient->mId, false);
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return;
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}
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aClient->mResourceState = MediaSystemResourceClient::RESOURCE_STATE_WAITING;
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ImageBridgeChild::GetSingleton()->GetMessageLoop()->PostTask(
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NewRunnableMethod<uint32_t>(
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this,
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&MediaSystemResourceManager::DoAcquire,
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aClient->mId));
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}
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bool
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MediaSystemResourceManager::AcquireSyncNoWait(MediaSystemResourceClient* aClient)
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{
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MOZ_ASSERT(aClient);
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MOZ_ASSERT(!InImageBridgeChildThread());
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ReentrantMonitor barrier("MediaSystemResourceManager::AcquireSyncNoWait");
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ReentrantMonitorAutoEnter autoMon(barrier);
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bool done = false;
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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MediaSystemResourceClient* client = mResourceClients.Get(aClient->mId);
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MOZ_ASSERT(client);
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MOZ_ASSERT(client == aClient);
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aClient->mIsSync = true; // sync request
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if (InImageBridgeChildThread()) {
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HandleAcquireResult(aClient->mId, false);
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return false;
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}
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if (!client || client != aClient) {
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HandleAcquireResult(aClient->mId, false);
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return false;
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}
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// State Check
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if (aClient->mResourceState != MediaSystemResourceClient::RESOURCE_STATE_START) {
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HandleAcquireResult(aClient->mId, false);
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return false;
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}
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// Hold barrier Monitor until acquire task end.
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aClient->mAcquireSyncWaitMonitor = &barrier;
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aClient->mAcquireSyncWaitDone = &done;
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aClient->mResourceState = MediaSystemResourceClient::RESOURCE_STATE_WAITING;
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}
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ImageBridgeChild::GetSingleton()->GetMessageLoop()->PostTask(
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NewRunnableMethod<uint32_t>(
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this,
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&MediaSystemResourceManager::DoAcquire,
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aClient->mId));
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// should stop the thread until done.
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while (!done) {
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barrier.Wait();
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}
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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if (aClient->mResourceState != MediaSystemResourceClient::RESOURCE_STATE_ACQUIRED) {
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return false;
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}
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return true;
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}
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}
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void
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MediaSystemResourceManager::DoAcquire(uint32_t aId)
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{
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MOZ_ASSERT(InImageBridgeChildThread());
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if (mShutDown || !mChild) {
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HandleAcquireResult(aId, false);
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return;
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}
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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MediaSystemResourceClient* client = mResourceClients.Get(aId);
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MOZ_ASSERT(client);
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if (!client ||
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client->mResourceState != MediaSystemResourceClient::RESOURCE_STATE_WAITING) {
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HandleAcquireResult(aId, false);
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return;
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}
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MOZ_ASSERT(aId == client->mId);
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bool willWait = !client->mAcquireSyncWaitMonitor ? true : false;
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mChild->SendAcquire(client->mId,
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client->mResourceType,
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willWait);
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}
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}
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void
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MediaSystemResourceManager::ReleaseResource(MediaSystemResourceClient* aClient)
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{
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MOZ_ASSERT(aClient);
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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MediaSystemResourceClient* client = mResourceClients.Get(aClient->mId);
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MOZ_ASSERT(client);
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MOZ_ASSERT(client == aClient);
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if (!client ||
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client != aClient ||
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aClient->mResourceState == MediaSystemResourceClient::RESOURCE_STATE_START ||
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aClient->mResourceState == MediaSystemResourceClient::RESOURCE_STATE_END) {
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aClient->mResourceState = MediaSystemResourceClient::RESOURCE_STATE_END;
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return;
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}
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aClient->mResourceState = MediaSystemResourceClient::RESOURCE_STATE_END;
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ImageBridgeChild::GetSingleton()->GetMessageLoop()->PostTask(
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NewRunnableMethod<uint32_t>(
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this,
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&MediaSystemResourceManager::DoRelease,
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aClient->mId));
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}
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}
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void
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MediaSystemResourceManager::DoRelease(uint32_t aId)
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{
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MOZ_ASSERT(InImageBridgeChildThread());
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if (mShutDown || !mChild) {
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return;
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}
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mChild->SendRelease(aId);
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}
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void
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MediaSystemResourceManager::RecvResponse(uint32_t aId, bool aSuccess)
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{
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HandleAcquireResult(aId, aSuccess);
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}
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void
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MediaSystemResourceManager::HandleAcquireResult(uint32_t aId, bool aSuccess)
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{
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if (!InImageBridgeChildThread()) {
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ImageBridgeChild::GetSingleton()->GetMessageLoop()->PostTask(
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NewRunnableMethod<uint32_t, bool>(
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this,
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&MediaSystemResourceManager::HandleAcquireResult,
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aId,
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aSuccess));
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return;
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}
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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MediaSystemResourceClient* client = mResourceClients.Get(aId);
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if (!client) {
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// Client was already unregistered.
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return;
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}
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if (client->mResourceState != MediaSystemResourceClient::RESOURCE_STATE_WAITING) {
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return;
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}
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// Update state
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if (aSuccess) {
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client->mResourceState = MediaSystemResourceClient::RESOURCE_STATE_ACQUIRED;
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} else {
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client->mResourceState = MediaSystemResourceClient::RESOURCE_STATE_NOT_ACQUIRED;
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}
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if (client->mIsSync) {
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if (client->mAcquireSyncWaitMonitor) {
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// Notify AcquireSync() complete
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MOZ_ASSERT(client->mAcquireSyncWaitDone);
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ReentrantMonitorAutoEnter autoMon(*client->mAcquireSyncWaitMonitor);
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*client->mAcquireSyncWaitDone = true;
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client->mAcquireSyncWaitMonitor->NotifyAll();
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client->mAcquireSyncWaitMonitor = nullptr;
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client->mAcquireSyncWaitDone = nullptr;
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}
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} else {
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// Notify Acquire() result
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if (client->mListener) {
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if (aSuccess) {
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client->mListener->ResourceReserved();
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} else {
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client->mListener->ResourceReserveFailed();
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}
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}
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}
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}
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} // namespace mozilla
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