1 /* 2 * Copyright (C) 2012 SoftAtHome. 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 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef MallocStatistics_h 27 #define MallocStatistics_h 28 29 #include "platform/heap/Handle.h" 30 #include "wtf/FastMalloc.h" 31 #include "wtf/PassRefPtr.h" 32 #include "wtf/RefCounted.h" 33 34 namespace WebCore { 35 36 class MallocStatistics : public RefCountedWillBeGarbageCollected<MallocStatistics> { 37 public: create()38 static PassRefPtrWillBeRawPtr<MallocStatistics> create() 39 { 40 return adoptRefWillBeNoop(new MallocStatistics()); 41 } 42 reservedVMBytes()43 size_t reservedVMBytes() const { return m_stats.reservedVMBytes; } committedVMBytes()44 size_t committedVMBytes() const { return m_stats.committedVMBytes; } freeListBytes()45 size_t freeListBytes() const { return m_stats.freeListBytes; } 46 trace(Visitor *)47 void trace(Visitor*) { } 48 49 private: MallocStatistics()50 MallocStatistics() 51 { 52 m_stats = WTF::fastMallocStatistics(); 53 } 54 55 WTF::FastMallocStatistics m_stats; 56 }; 57 58 } // namespace WebCore 59 60 #endif 61