blob: cd6c78d85e33d9f6044788f0c9bbc5258c03a543 [file] [log] [blame]
/*
* Copyright (C) 2008-2017 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. ``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
* 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.
*/
#pragma once
#include "WorkerRunLoop.h"
#include <JavaScriptCore/RuntimeFlags.h>
#include <memory>
#include <wtf/Forward.h>
#include <wtf/Function.h>
#include <wtf/RefCounted.h>
namespace WebCore {
class ContentSecurityPolicyResponseHeaders;
class NotificationClient;
class SecurityOrigin;
class SocketProvider;
class WorkerGlobalScope;
class WorkerLoaderProxy;
class WorkerDebuggerProxy;
class WorkerReportingProxy;
enum class WorkerThreadStartMode {
Normal,
WaitForInspector,
};
namespace IDBClient {
class IDBConnectionProxy;
}
struct WorkerThreadStartupData;
class WorkerThread : public ThreadSafeRefCounted<WorkerThread> {
public:
virtual ~WorkerThread();
static HashSet<WorkerThread*>& workerThreads(const LockHolder&);
static Lock& workerThreadsMutex();
void stop(WTF::Function<void()>&& terminatedCallback);
Thread* thread() const { return m_thread.get(); }
WorkerRunLoop& runLoop() { return m_runLoop; }
WorkerLoaderProxy& workerLoaderProxy() const { return m_workerLoaderProxy; }
WorkerDebuggerProxy& workerDebuggerProxy() const { return m_workerDebuggerProxy; }
WorkerReportingProxy& workerReportingProxy() const { return m_workerReportingProxy; }
// Number of active worker threads.
WEBCORE_EXPORT static unsigned workerThreadCount();
static void releaseFastMallocFreeMemoryInAllThreads();
#if ENABLE(NOTIFICATIONS)
NotificationClient* getNotificationClient() { return m_notificationClient; }
void setNotificationClient(NotificationClient* client) { m_notificationClient = client; }
#endif
void startRunningDebuggerTasks();
void stopRunningDebuggerTasks();
JSC::RuntimeFlags runtimeFlags() const { return m_runtimeFlags; }
String identifier() const { return m_identifier; }
protected:
WorkerThread(const URL&, const String& name, const String& identifier, const String& userAgent, bool isOnline, const String& sourceCode, WorkerLoaderProxy&, WorkerDebuggerProxy&, WorkerReportingProxy&, WorkerThreadStartMode, const ContentSecurityPolicyResponseHeaders&, bool shouldBypassMainWorldContentSecurityPolicy, const SecurityOrigin& topOrigin, MonotonicTime timeOrigin, IDBClient::IDBConnectionProxy*, SocketProvider*, JSC::RuntimeFlags);
// Factory method for creating a new worker context for the thread.
virtual Ref<WorkerGlobalScope> createWorkerGlobalScope(const URL&, Ref<SecurityOrigin>&&, const String& name, const String& identifier, const String& userAgent, bool isOnline, const ContentSecurityPolicyResponseHeaders&, bool shouldBypassMainWorldContentSecurityPolicy, Ref<SecurityOrigin>&& topOrigin, MonotonicTime timeOrigin) = 0;
// Executes the event loop for the worker thread. Derived classes can override to perform actions before/after entering the event loop.
virtual void runEventLoop();
WorkerGlobalScope* workerGlobalScope() { return m_workerGlobalScope.get(); }
IDBClient::IDBConnectionProxy* idbConnectionProxy();
SocketProvider* socketProvider();
void start(Function<void(const String&)>&& evaluateCallback);
private:
void workerThread();
virtual bool isServiceWorkerThread() const { return false; }
virtual void finishedEvaluatingScript() { }
RefPtr<Thread> m_thread;
String m_identifier;
WorkerRunLoop m_runLoop;
WorkerLoaderProxy& m_workerLoaderProxy;
WorkerDebuggerProxy& m_workerDebuggerProxy;
WorkerReportingProxy& m_workerReportingProxy;
JSC::RuntimeFlags m_runtimeFlags;
bool m_pausedForDebugger { false };
RefPtr<WorkerGlobalScope> m_workerGlobalScope;
Lock m_threadCreationAndWorkerGlobalScopeMutex;
std::unique_ptr<WorkerThreadStartupData> m_startupData;
WTF::Function<void(const String&)> m_evaluateCallback;
#if ENABLE(NOTIFICATIONS)
NotificationClient* m_notificationClient { nullptr };
#endif
#if ENABLE(INDEXED_DATABASE)
RefPtr<IDBClient::IDBConnectionProxy> m_idbConnectionProxy;
#endif
RefPtr<SocketProvider> m_socketProvider;
WTF::Function<void()> m_stoppedCallback;
};
} // namespace WebCore