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Viewing changes to Source/WebKit/GPUProcess/GPUProcess.cpp

  • Committer: mmach
  • Date: 2023-06-16 17:21:37 UTC
  • Revision ID: netbit73@gmail.com-20230616172137-2rqx6yr96ga9g3kp
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Source/WebKit/GPUProcess/GPUProcess.cpp
 
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/*
 
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 * Copyright (C) 2019 Apple Inc. All rights reserved.
 
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 *
 
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 * Redistribution and use in source and binary forms, with or without
 
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 * modification, are permitted provided that the following conditions
 
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 * are met:
 
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 * 1. Redistributions of source code must retain the above copyright
 
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 *    notice, this list of conditions and the following disclaimer.
 
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 * 2. Redistributions in binary form must reproduce the above copyright
 
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 *    notice, this list of conditions and the following disclaimer in the
 
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 *    documentation and/or other materials provided with the distribution.
 
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 *
 
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 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 
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 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 
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 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 
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 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 
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 * THE POSSIBILITY OF SUCH DAMAGE.
 
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 */
 
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#include "config.h"
 
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#include "GPUProcess.h"
 
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#if ENABLE(GPU_PROCESS)
 
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#include "ArgumentCoders.h"
 
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#include "Attachment.h"
 
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#include "AuxiliaryProcessMessages.h"
 
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#include "DataReference.h"
 
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#include "GPUConnectionToWebProcess.h"
 
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#include "GPUProcessCreationParameters.h"
 
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#include "GPUProcessSessionParameters.h"
 
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#include "Logging.h"
 
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#include "SandboxExtension.h"
 
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#include "WebPageProxyMessages.h"
 
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#include "WebProcessPoolMessages.h"
 
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#include <WebCore/LogInitialization.h>
 
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#include <WebCore/MockAudioSharedUnit.h>
 
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#include <wtf/Algorithms.h>
 
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#include <wtf/CallbackAggregator.h>
 
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#include <wtf/OptionSet.h>
 
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#include <wtf/ProcessPrivilege.h>
 
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#include <wtf/RunLoop.h>
 
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#include <wtf/UniqueRef.h>
 
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#include <wtf/text/AtomString.h>
 
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namespace WebKit {
 
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using namespace WebCore;
 
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GPUProcess::GPUProcess(AuxiliaryProcessInitializationParameters&& parameters)
 
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{
 
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    initialize(WTFMove(parameters));
 
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}
 
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GPUProcess::~GPUProcess()
 
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{
 
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}
 
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void GPUProcess::createGPUConnectionToWebProcess(ProcessIdentifier identifier, PAL::SessionID sessionID, CompletionHandler<void(Optional<IPC::Attachment>&&)>&& completionHandler)
 
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{
 
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    auto ipcConnection = createIPCConnectionPair();
 
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    if (!ipcConnection) {
 
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        completionHandler({ });
 
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        return;
 
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    }
 
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    auto newConnection = GPUConnectionToWebProcess::create(*this, identifier, ipcConnection->first, sessionID);
 
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    ASSERT(!m_webProcessConnections.contains(identifier));
 
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    m_webProcessConnections.add(identifier, WTFMove(newConnection));
 
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    completionHandler(WTFMove(ipcConnection->second));
 
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}
 
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void GPUProcess::removeGPUConnectionToWebProcess(GPUConnectionToWebProcess& connection)
 
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{
 
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    ASSERT(m_webProcessConnections.contains(connection.webProcessIdentifier()));
 
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    m_webProcessConnections.remove(connection.webProcessIdentifier());
 
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}
 
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void GPUProcess::connectionToWebProcessClosed(IPC::Connection& connection)
 
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{
 
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}
 
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bool GPUProcess::shouldTerminate()
 
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{
 
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    return m_webProcessConnections.isEmpty();
 
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}
 
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void GPUProcess::didClose(IPC::Connection&)
 
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{
 
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    ASSERT(RunLoop::isMain());
 
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}
 
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void GPUProcess::lowMemoryHandler(Critical critical)
 
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{
 
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    WTF::releaseFastMallocFreeMemory();
 
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}
 
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void GPUProcess::initializeGPUProcess(GPUProcessCreationParameters&& parameters)
 
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{
 
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    WTF::Thread::setCurrentThreadIsUserInitiated();
 
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    AtomString::init();
 
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#if ENABLE(MEDIA_STREAM)
 
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    setMockCaptureDevicesEnabled(parameters.useMockCaptureDevices);
 
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    SandboxExtension::consumePermanently(parameters.cameraSandboxExtensionHandle);
 
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    SandboxExtension::consumePermanently(parameters.microphoneSandboxExtensionHandle);
 
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#if PLATFORM(IOS)
 
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    SandboxExtension::consumePermanently(parameters.tccSandboxExtensionHandle);
 
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#endif
 
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#endif
 
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}
 
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void GPUProcess::prepareToSuspend(bool isSuspensionImminent, CompletionHandler<void()>&& completionHandler)
 
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{
 
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    RELEASE_LOG(ProcessSuspension, "%p - GPUProcess::prepareToSuspend(), isSuspensionImminent: %d", this, isSuspensionImminent);
 
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    lowMemoryHandler(Critical::Yes);
 
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}
 
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void GPUProcess::processDidResume()
 
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{
 
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    RELEASE_LOG(ProcessSuspension, "%p - GPUProcess::processDidResume()", this);
 
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    resume();
 
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}
 
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void GPUProcess::resume()
 
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{
 
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}
 
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void GPUProcess::processDidTransitionToForeground()
 
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{
 
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}
 
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void GPUProcess::processDidTransitionToBackground()
 
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{
 
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}
 
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GPUConnectionToWebProcess* GPUProcess::webProcessConnection(ProcessIdentifier identifier) const
 
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{
 
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    return m_webProcessConnections.get(identifier);
 
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}
 
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void GPUProcess::setMockCaptureDevicesEnabled(bool isEnabled)
 
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{
 
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#if ENABLE(MEDIA_STREAM)
 
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    // FIXME: Enable the audio session check by implementing an AudioSession for the GPUProcess.
 
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    MockAudioSharedUnit::singleton().setDisableAudioSessionCheck(isEnabled);
 
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    MockRealtimeMediaSourceCenter::setMockRealtimeMediaSourceCenterEnabled(isEnabled);
 
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#endif
 
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}
 
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void GPUProcess::addSession(PAL::SessionID sessionID, GPUProcessSessionParameters&& parameters)
 
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{
 
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    ASSERT(!m_sessions.contains(sessionID));
 
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    SandboxExtension::consumePermanently(parameters.mediaCacheDirectorySandboxExtensionHandle);
 
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#if ENABLE(LEGACY_ENCRYPTED_MEDIA)
 
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    SandboxExtension::consumePermanently(parameters.mediaKeysStorageDirectorySandboxExtensionHandle);
 
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#endif
 
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    m_sessions.add(sessionID, GPUSession {
 
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        WTFMove(parameters.mediaCacheDirectory)
 
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#if ENABLE(LEGACY_ENCRYPTED_MEDIA)
 
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        , WTFMove(parameters.mediaKeysStorageDirectory)
 
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#endif
 
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    });
 
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}
 
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void GPUProcess::removeSession(PAL::SessionID sessionID)
 
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{
 
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    ASSERT(m_sessions.contains(sessionID));
 
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    m_sessions.remove(sessionID);
 
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}
 
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const String& GPUProcess::mediaCacheDirectory(PAL::SessionID sessionID) const
 
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{
 
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    ASSERT(m_sessions.contains(sessionID));
 
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    return m_sessions.find(sessionID)->value.mediaCacheDirectory;
 
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}
 
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#if ENABLE(LEGACY_ENCRYPTED_MEDIA)
 
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const String& GPUProcess::mediaKeysStorageDirectory(PAL::SessionID sessionID) const
 
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{
 
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    ASSERT(m_sessions.contains(sessionID));
 
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    return m_sessions.find(sessionID)->value.mediaKeysStorageDirectory;
 
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}
 
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#endif
 
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} // namespace WebKit
 
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#endif // ENABLE(GPU_PROCESS)