1/* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#ifndef MemoryInfo_h 32#define MemoryInfo_h 33 34#include "JSDOMWindow.h" 35#include <wtf/PassRefPtr.h> 36#include <wtf/RefCounted.h> 37 38namespace WebCore { 39 40class MemoryInfo : public RefCounted<MemoryInfo> { 41public: 42 static PassRefPtr<MemoryInfo> create() { return adoptRef(new MemoryInfo); } 43 44 size_t usedJSHeapSize() const { return m_usedJSHeapSize; } 45 size_t totalJSHeapSize() const { return m_totalJSHeapSize; } 46 47private: 48 MemoryInfo() 49 : m_usedJSHeapSize(JSDOMWindow::commonVM().heap.size()) 50 , m_totalJSHeapSize(JSDOMWindow::commonVM().heap.capacity()) 51 { 52 } 53 54 size_t m_usedJSHeapSize; 55 size_t m_totalJSHeapSize; 56}; 57 58} // namespace WebCore 59 60#endif // MemoryInfo_h 61