GCActivityCallback.h [plain text]
#ifndef GCActivityCallback_h
#define GCActivityCallback_h
#include "HeapTimer.h"
#include <wtf/OwnPtr.h>
#include <wtf/PassOwnPtr.h>
#if USE(CF)
#include <CoreFoundation/CoreFoundation.h>
#endif
namespace JSC {
class Heap;
class GCActivityCallback : public HeapTimer {
WTF_MAKE_FAST_ALLOCATED;
public:
virtual void didAllocate(size_t) { }
virtual void willCollect() { }
virtual void cancel() { }
bool isEnabled() const { return m_enabled; }
void setEnabled(bool enabled) { m_enabled = enabled; }
#if PLATFORM(IOS)
static bool s_shouldCreateGCTimer;
#endif // PLATFORM(IOS)
protected:
#if USE(CF)
GCActivityCallback(VM* vm, CFRunLoopRef runLoop)
: HeapTimer(vm, runLoop)
, m_enabled(true)
{
}
#elif PLATFORM(EFL)
GCActivityCallback(VM* vm, bool flag)
: HeapTimer(vm)
, m_enabled(flag)
{
}
#else
GCActivityCallback(VM* vm)
: HeapTimer(vm)
, m_enabled(true)
{
}
#endif
bool m_enabled;
};
class DefaultGCActivityCallback : public GCActivityCallback {
public:
static PassOwnPtr<DefaultGCActivityCallback> create(Heap*);
DefaultGCActivityCallback(Heap*);
#if PLATFORM(IOS)
JS_EXPORT_PRIVATE virtual void didAllocate(size_t);
JS_EXPORT_PRIVATE virtual void willCollect();
JS_EXPORT_PRIVATE virtual void cancel();
JS_EXPORT_PRIVATE virtual void doWork();
#else
virtual void didAllocate(size_t);
virtual void willCollect();
virtual void cancel();
virtual void doWork();
#endif
#if USE(CF)
protected:
#if PLATFORM(IOS)
JS_EXPORT_PRIVATE DefaultGCActivityCallback(Heap*, CFRunLoopRef);
#else
DefaultGCActivityCallback(Heap*, CFRunLoopRef);
#endif // PLATFORM(IOS)
#endif
#if USE(CF) || PLATFORM(QT) || PLATFORM(EFL)
protected:
void cancelTimer();
void scheduleTimer(double);
private:
double m_delay;
#endif
};
inline PassOwnPtr<DefaultGCActivityCallback> DefaultGCActivityCallback::create(Heap* heap)
{
#if PLATFORM(IOS)
if (GCActivityCallback::s_shouldCreateGCTimer)
return adoptPtr(new DefaultGCActivityCallback(heap));
return nullptr;
#else
return adoptPtr(new DefaultGCActivityCallback(heap));
#endif // PLATFORM(IOS)
}
}
#endif