/*
* Copyright (C) 2010 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER 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 ScriptGCEvent_h
#define ScriptGCEvent_h
#include "v8.h"
#include "wtf/Vector.h"
namespace WebCore {
struct HeapInfo {
HeapInfo()
: usedJSHeapSize(0)
, totalJSHeapSize(0)
, jsHeapSizeLimit(0)
{
}
size_t usedJSHeapSize;
size_t totalJSHeapSize;
size_t jsHeapSizeLimit;
};
class ScriptGCEventListener;
class GCEventData {
public:
typedef Vector<ScriptGCEventListener*> GCEventListeners;
GCEventData()
: m_startTime(0.0)
, m_usedHeapSize(0)
{ }
void clear()
{
m_startTime = 0.0;
m_usedHeapSize = 0;
}
GCEventListeners& listeners() { return m_listeners; }
double startTime() { return m_startTime; }
void setStartTime(double startTime) { m_startTime = startTime; }
size_t usedHeapSize() { return m_usedHeapSize; }
void setUsedHeapSize(size_t usedHeapSize) { m_usedHeapSize = usedHeapSize; }
private:
double m_startTime;
size_t m_usedHeapSize;
GCEventListeners m_listeners;
};
class ScriptGCEvent
{
public:
static void addEventListener(ScriptGCEventListener*);
static void removeEventListener(ScriptGCEventListener*);
static void getHeapSize(HeapInfo&);
private:
static void gcEpilogueCallback(v8::GCType type, v8::GCCallbackFlags flags);
static void gcPrologueCallback(v8::GCType type, v8::GCCallbackFlags flags);
static size_t getUsedHeapSize();
};
} // namespace WebCore
#endif // !defined(ScriptGCEvent_h)