/* | |
* Copyright (C) 2008 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 COMPUTER, 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 COMPUTER, 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. | |
* | |
*/ | |
#ifndef WorkerThread_h | |
#define WorkerThread_h | |
#if ENABLE(WORKERS) | |
#include "WorkerRunLoop.h" | |
#include <wtf/OwnPtr.h> | |
#include <wtf/PassRefPtr.h> | |
#include <wtf/RefCounted.h> | |
namespace WebCore { | |
class KURL; | |
class NotificationPresenter; | |
class String; | |
class WorkerContext; | |
class WorkerLoaderProxy; | |
class WorkerReportingProxy; | |
struct WorkerThreadStartupData; | |
class WorkerThread : public RefCounted<WorkerThread> { | |
public: | |
virtual ~WorkerThread(); | |
bool start(); | |
void stop(); | |
ThreadIdentifier threadID() const { return m_threadID; } | |
WorkerRunLoop& runLoop() { return m_runLoop; } | |
WorkerLoaderProxy& workerLoaderProxy() const { return m_workerLoaderProxy; } | |
WorkerReportingProxy& workerReportingProxy() const { return m_workerReportingProxy; } | |
// Number of active worker threads. | |
static unsigned workerThreadCount(); | |
#if ENABLE(NOTIFICATIONS) | |
NotificationPresenter* getNotificationPresenter() { return m_notificationPresenter; } | |
void setNotificationPresenter(NotificationPresenter* presenter) { m_notificationPresenter = presenter; } | |
#endif | |
protected: | |
WorkerThread(const KURL&, const String& userAgent, const String& sourceCode, WorkerLoaderProxy&, WorkerReportingProxy&); | |
// Factory method for creating a new worker context for the thread. | |
virtual PassRefPtr<WorkerContext> createWorkerContext(const KURL& url, const String& userAgent) = 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(); | |
WorkerContext* workerContext() { return m_workerContext.get(); } | |
private: | |
// Static function executed as the core routine on the new thread. Passed a pointer to a WorkerThread object. | |
static void* workerThreadStart(void*); | |
void* workerThread(); | |
ThreadIdentifier m_threadID; | |
WorkerRunLoop m_runLoop; | |
WorkerLoaderProxy& m_workerLoaderProxy; | |
WorkerReportingProxy& m_workerReportingProxy; | |
RefPtr<WorkerContext> m_workerContext; | |
Mutex m_threadCreationMutex; | |
OwnPtr<WorkerThreadStartupData> m_startupData; | |
#if ENABLE(NOTIFICATIONS) | |
NotificationPresenter* m_notificationPresenter; | |
#endif | |
// Track the number of WorkerThread instances for use in layout tests. | |
static unsigned m_threadCount; | |
}; | |
} // namespace WebCore | |
#endif // ENABLE(WORKERS) | |
#endif // WorkerThread_h | |