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 "bindings/core/v8/ScriptGCEvent.h" 35 #include "bindings/core/v8/ScriptWrappable.h" 36 #include "platform/heap/Handle.h" 37 #include "wtf/PassRefPtr.h" 38 #include "wtf/RefCounted.h" 39 40 namespace blink { 41 42 class MemoryInfo FINAL : public RefCountedWillBeGarbageCollected<MemoryInfo>, public ScriptWrappable { 43 DEFINE_WRAPPERTYPEINFO(); 44 public: 45 static PassRefPtrWillBeRawPtr<MemoryInfo> create() 46 { 47 return adoptRefWillBeNoop(new MemoryInfo()); 48 } 49 50 size_t totalJSHeapSize() const { return m_info.totalJSHeapSize; } 51 size_t usedJSHeapSize() const { return m_info.usedJSHeapSize; } 52 size_t jsHeapSizeLimit() const { return m_info.jsHeapSizeLimit; } 53 54 void trace(Visitor*) { } 55 56 private: 57 MemoryInfo(); 58 59 HeapInfo m_info; 60 }; 61 62 size_t quantizeMemorySize(size_t); 63 64 } // namespace blink 65 66 #endif // MemoryInfo_h 67
