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/*
* Copyright (C) 2010 Apple Inc. All rights reserved.
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
* Portions Copyright (c) 2010 Motorola Mobility, 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.
*/
#ifndef RunLoop_h
#define RunLoop_h
#include <wtf/Deque.h>
#include <wtf/Forward.h>
#include <wtf/FunctionDispatcher.h>
#include <wtf/Functional.h>
#include <wtf/HashMap.h>
#include <wtf/RetainPtr.h>
#include <wtf/Threading.h>
#if USE(GLIB)
#include <wtf/gobject/GMainLoopSource.h>
#endif
#if PLATFORM(EFL)
#include <Ecore.h>
#include <wtf/efl/UniquePtrEfl.h>
#endif
namespace WTF {
class RunLoop : public FunctionDispatcher {
WTF_MAKE_NONCOPYABLE(RunLoop);
public:
// Must be called from the main thread (except for the Mac platform, where it
// can be called from any thread).
WTF_EXPORT_PRIVATE static void initializeMainRunLoop();
WTF_EXPORT_PRIVATE static RunLoop& current();
WTF_EXPORT_PRIVATE static RunLoop& main();
WTF_EXPORT_PRIVATE static bool isMain();
~RunLoop();
virtual void dispatch(std::function<void()>) override;
WTF_EXPORT_PRIVATE static void run();
WTF_EXPORT_PRIVATE void stop();
WTF_EXPORT_PRIVATE void wakeUp();
#if PLATFORM(COCOA)
WTF_EXPORT_PRIVATE void runForDuration(double duration);
#endif
class TimerBase {
friend class RunLoop;
public:
WTF_EXPORT_PRIVATE explicit TimerBase(RunLoop&);
WTF_EXPORT_PRIVATE virtual ~TimerBase();
void startRepeating(double repeatInterval) { start(repeatInterval, true); }
void startRepeating(std::chrono::milliseconds repeatInterval) { startRepeating(repeatInterval.count() * 0.001); }
void startOneShot(double interval) { start(interval, false); }
WTF_EXPORT_PRIVATE void stop();
WTF_EXPORT_PRIVATE bool isActive() const;
virtual void fired() = 0;
private:
WTF_EXPORT_PRIVATE void start(double nextFireInterval, bool repeat);
RunLoop& m_runLoop;
#if PLATFORM(WIN)
static void timerFired(RunLoop*, uint64_t ID);
uint64_t m_ID;
bool m_isRepeating;
#elif PLATFORM(COCOA)
static void timerFired(CFRunLoopTimerRef, void*);
RetainPtr<CFRunLoopTimerRef> m_timer;
#elif PLATFORM(EFL)
static bool timerFired(void* data);
Ecore_Timer* m_timer;
bool m_isRepeating;
#elif USE(GLIB)
GMainLoopSource m_timerSource;
#endif
};
template <typename TimerFiredClass>
class Timer : public TimerBase {
public:
typedef void (TimerFiredClass::*TimerFiredFunction)();
Timer(RunLoop& runLoop, TimerFiredClass* o, TimerFiredFunction f)
: TimerBase(runLoop)
, m_object(o)
, m_function(f)
{
}
private:
virtual void fired() { (m_object->*m_function)(); }
TimerFiredClass* m_object;
TimerFiredFunction m_function;
};
class Holder;
private:
RunLoop();
void performWork();
Mutex m_functionQueueLock;
Deque<std::function<void ()>> m_functionQueue;
#if PLATFORM(WIN)
static bool registerRunLoopMessageWindowClass();
static LRESULT CALLBACK RunLoopWndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT wndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
HWND m_runLoopMessageWindow;
typedef HashMap<uint64_t, TimerBase*> TimerMap;
TimerMap m_activeTimers;
#elif PLATFORM(COCOA)
static void performWork(void*);
RetainPtr<CFRunLoopRef> m_runLoop;
RetainPtr<CFRunLoopSourceRef> m_runLoopSource;
int m_nestingLevel;
#elif PLATFORM(EFL)
Mutex m_pipeLock;
EflUniquePtr<Ecore_Pipe> m_pipe;
Mutex m_wakeUpEventRequestedLock;
bool m_wakeUpEventRequested;
static void wakeUpEvent(void* data, void*, unsigned);
#elif USE(GLIB)
public:
static gboolean queueWork(RunLoop*);
GMainLoop* innermostLoop();
void pushNestedMainLoop(GMainLoop*);
void popNestedMainLoop();
private:
GRefPtr<GMainContext> m_runLoopContext;
Vector<GRefPtr<GMainLoop>> m_runLoopMainLoops;
#endif
};
} // namespace WTF
using WTF::RunLoop;
#endif // RunLoop_h
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