GCActivityCallback.h [plain text]
#ifndef GCActivityCallback_h
#define GCActivityCallback_h
#include "HeapTimer.h"
#include <wtf/RefPtr.h>
#if USE(CF)
#include <CoreFoundation/CoreFoundation.h>
#endif
namespace JSC {
class FullGCActivityCallback;
class Heap;
class JS_EXPORT_PRIVATE GCActivityCallback : public HeapTimer, public ThreadSafeRefCounted<GCActivityCallback> {
WTF_MAKE_FAST_ALLOCATED;
public:
static RefPtr<FullGCActivityCallback> createFullTimer(Heap*);
static RefPtr<GCActivityCallback> createEdenTimer(Heap*);
GCActivityCallback(Heap*);
virtual void doWork() override;
virtual void doCollection() = 0;
virtual void didAllocate(size_t);
virtual void willCollect();
virtual void cancel();
bool isEnabled() const { return m_enabled; }
void setEnabled(bool enabled) { m_enabled = enabled; }
static bool s_shouldCreateGCTimer;
protected:
virtual double lastGCLength() = 0;
virtual double gcTimeSlice(size_t bytes) = 0;
virtual double deathRate() = 0;
#if USE(CF)
GCActivityCallback(VM* vm, CFRunLoopRef runLoop)
: HeapTimer(vm, runLoop)
, m_enabled(true)
, m_delay(s_decade)
{
}
#elif PLATFORM(EFL)
static constexpr double s_hour = 3600;
GCActivityCallback(VM* vm, bool flag)
: HeapTimer(vm)
, m_enabled(flag)
, m_delay(s_hour)
{
}
#else
GCActivityCallback(VM* vm)
: HeapTimer(vm)
, m_enabled(true)
{
}
#endif
bool m_enabled;
#if USE(CF)
protected:
GCActivityCallback(Heap*, CFRunLoopRef);
#endif
#if USE(CF) || PLATFORM(EFL)
protected:
void cancelTimer();
void scheduleTimer(double);
private:
double m_delay;
#endif
};
}
#endif