| /* |
| * Copyright (C) 2010 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "AuxiliaryProcess.h" |
| |
| #include "Logging.h" |
| #include "SandboxInitializationParameters.h" |
| #include <WebCore/SchemeRegistry.h> |
| #include <pal/SessionID.h> |
| |
| #if !OS(WINDOWS) |
| #include <unistd.h> |
| #endif |
| |
| #if OS(LINUX) |
| #include <wtf/MemoryPressureHandler.h> |
| #endif |
| |
| namespace WebKit { |
| using namespace WebCore; |
| |
| AuxiliaryProcess::AuxiliaryProcess() |
| : m_terminationCounter(0) |
| , m_terminationTimer(RunLoop::main(), this, &AuxiliaryProcess::terminationTimerFired) |
| , m_processSuppressionDisabled("Process Suppression Disabled by UIProcess") |
| { |
| } |
| |
| AuxiliaryProcess::~AuxiliaryProcess() |
| { |
| } |
| |
| void AuxiliaryProcess::didClose(IPC::Connection&) |
| { |
| _exit(EXIT_SUCCESS); |
| } |
| |
| void AuxiliaryProcess::initialize(const AuxiliaryProcessInitializationParameters& parameters) |
| { |
| RELEASE_ASSERT_WITH_MESSAGE(parameters.processIdentifier, "Unable to initialize child process without a WebCore process identifier"); |
| Process::setIdentifier(*parameters.processIdentifier); |
| |
| platformInitialize(); |
| |
| #if PLATFORM(COCOA) |
| m_priorityBoostMessage = parameters.priorityBoostMessage; |
| #endif |
| |
| initializeProcess(parameters); |
| |
| SandboxInitializationParameters sandboxParameters; |
| initializeSandbox(parameters, sandboxParameters); |
| |
| initializeProcessName(parameters); |
| |
| // In WebKit2, only the UI process should ever be generating non-default PAL::SessionIDs. |
| PAL::SessionID::enableGenerationProtection(); |
| |
| m_connection = IPC::Connection::createClientConnection(parameters.connectionIdentifier, *this); |
| initializeConnection(m_connection.get()); |
| m_connection->open(); |
| } |
| |
| void AuxiliaryProcess::setProcessSuppressionEnabled(bool enabled) |
| { |
| if (enabled) |
| m_processSuppressionDisabled.stop(); |
| else |
| m_processSuppressionDisabled.start(); |
| } |
| |
| void AuxiliaryProcess::initializeProcess(const AuxiliaryProcessInitializationParameters&) |
| { |
| } |
| |
| void AuxiliaryProcess::initializeProcessName(const AuxiliaryProcessInitializationParameters&) |
| { |
| } |
| |
| void AuxiliaryProcess::initializeConnection(IPC::Connection*) |
| { |
| } |
| |
| void AuxiliaryProcess::addMessageReceiver(IPC::StringReference messageReceiverName, IPC::MessageReceiver& messageReceiver) |
| { |
| m_messageReceiverMap.addMessageReceiver(messageReceiverName, messageReceiver); |
| } |
| |
| void AuxiliaryProcess::addMessageReceiver(IPC::StringReference messageReceiverName, uint64_t destinationID, IPC::MessageReceiver& messageReceiver) |
| { |
| m_messageReceiverMap.addMessageReceiver(messageReceiverName, destinationID, messageReceiver); |
| } |
| |
| void AuxiliaryProcess::removeMessageReceiver(IPC::StringReference messageReceiverName, uint64_t destinationID) |
| { |
| m_messageReceiverMap.removeMessageReceiver(messageReceiverName, destinationID); |
| } |
| |
| void AuxiliaryProcess::removeMessageReceiver(IPC::StringReference messageReceiverName) |
| { |
| m_messageReceiverMap.removeMessageReceiver(messageReceiverName); |
| } |
| |
| void AuxiliaryProcess::removeMessageReceiver(IPC::MessageReceiver& messageReceiver) |
| { |
| m_messageReceiverMap.removeMessageReceiver(messageReceiver); |
| } |
| |
| void AuxiliaryProcess::disableTermination() |
| { |
| m_terminationCounter++; |
| m_terminationTimer.stop(); |
| } |
| |
| void AuxiliaryProcess::enableTermination() |
| { |
| ASSERT(m_terminationCounter > 0); |
| m_terminationCounter--; |
| |
| if (m_terminationCounter) |
| return; |
| |
| if (!m_terminationTimeout) { |
| terminationTimerFired(); |
| return; |
| } |
| |
| m_terminationTimer.startOneShot(m_terminationTimeout); |
| } |
| |
| IPC::Connection* AuxiliaryProcess::messageSenderConnection() const |
| { |
| return m_connection.get(); |
| } |
| |
| uint64_t AuxiliaryProcess::messageSenderDestinationID() const |
| { |
| return 0; |
| } |
| |
| void AuxiliaryProcess::terminationTimerFired() |
| { |
| if (!shouldTerminate()) |
| return; |
| |
| terminate(); |
| } |
| |
| void AuxiliaryProcess::stopRunLoop() |
| { |
| platformStopRunLoop(); |
| } |
| |
| #if !PLATFORM(COCOA) |
| void AuxiliaryProcess::platformStopRunLoop() |
| { |
| RunLoop::main().stop(); |
| } |
| #endif |
| |
| void AuxiliaryProcess::terminate() |
| { |
| m_connection->invalidate(); |
| |
| stopRunLoop(); |
| } |
| |
| void AuxiliaryProcess::shutDown() |
| { |
| terminate(); |
| } |
| |
| void AuxiliaryProcess::registerURLSchemeServiceWorkersCanHandle(const String& urlScheme) const |
| { |
| WebCore::SchemeRegistry::registerURLSchemeServiceWorkersCanHandle(urlScheme); |
| } |
| |
| #if !PLATFORM(COCOA) |
| void AuxiliaryProcess::platformInitialize() |
| { |
| } |
| |
| void AuxiliaryProcess::initializeSandbox(const AuxiliaryProcessInitializationParameters&, SandboxInitializationParameters&) |
| { |
| } |
| |
| void AuxiliaryProcess::didReceiveInvalidMessage(IPC::Connection&, IPC::StringReference messageReceiverName, IPC::StringReference messageName) |
| { |
| WTFLogAlways("Received invalid message: '%s::%s'", messageReceiverName.toString().data(), messageName.toString().data()); |
| CRASH(); |
| } |
| |
| #if OS(LINUX) |
| void AuxiliaryProcess::didReceiveMemoryPressureEvent(bool isCritical) |
| { |
| MemoryPressureHandler::singleton().triggerMemoryPressureEvent(isCritical); |
| } |
| #endif |
| |
| #endif // !PLATFORM(COCOA) |
| |
| } // namespace WebKit |