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100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
/*
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* Copyright (C) 2010 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ScriptGCEvent_h
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#define ScriptGCEvent_h
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#include "wtf/Vector.h"
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#include <v8.h>
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namespace blink {
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struct HeapInfo {
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HeapInfo()
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: usedJSHeapSize(0)
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, totalJSHeapSize(0)
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, jsHeapSizeLimit(0)
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{
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}
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size_t usedJSHeapSize;
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size_t totalJSHeapSize;
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size_t jsHeapSizeLimit;
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};
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class ScriptGCEventListener;
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class GCEventData {
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public:
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typedef Vector<ScriptGCEventListener*> GCEventListeners;
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GCEventData()
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: m_startTime(0.0)
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, m_usedHeapSize(0)
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{ }
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void clear()
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{
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m_startTime = 0.0;
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m_usedHeapSize = 0;
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}
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GCEventListeners& listeners() { return m_listeners; }
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double startTime() { return m_startTime; }
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void setStartTime(double startTime) { m_startTime = startTime; }
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size_t usedHeapSize() { return m_usedHeapSize; }
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void setUsedHeapSize(size_t usedHeapSize) { m_usedHeapSize = usedHeapSize; }
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private:
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double m_startTime;
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size_t m_usedHeapSize;
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GCEventListeners m_listeners;
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};
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// FIXME(361045): remove ScriptGCEvent once DevTools Timeline migrates to tracing.
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class ScriptGCEvent {
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public:
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static void addEventListener(ScriptGCEventListener*);
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static void removeEventListener(ScriptGCEventListener*);
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static void getHeapSize(HeapInfo&);
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private:
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static void gcEpilogueCallback(v8::GCType type, v8::GCCallbackFlags flags);
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static void gcPrologueCallback(v8::GCType type, v8::GCCallbackFlags flags);
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static size_t getUsedHeapSize();
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};
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} // namespace blink
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#endif // !defined(ScriptGCEvent_h)
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