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 <wtf/FastMalloc.h>
30#include <wtf/PassRefPtr.h>
31#include <wtf/RefCounted.h>
32
33namespace WebCore {
34
35class MallocStatistics : public RefCounted<MallocStatistics> {
36public:
37    static PassRefPtr<MallocStatistics> create() { return adoptRef(new MallocStatistics()); }
38
39    size_t reservedVMBytes() const { return m_stats.reservedVMBytes; }
40    size_t committedVMBytes() const { return m_stats.committedVMBytes; }
41    size_t freeListBytes() const { return m_stats.freeListBytes; }
42
43private:
44    MallocStatistics()
45    {
46        m_stats = WTF::fastMallocStatistics();
47    }
48
49    WTF::FastMallocStatistics m_stats;
50};
51
52} // namespace WebCore
53
54#endif
55