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