1/*
2 * Copyright (C) 2007 Apple 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
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 * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "config.h"
30
31#ifndef NDEBUG
32
33#include "GDIObjectCounter.h"
34
35#include "Logging.h"
36#include <wtf/text/CString.h>
37
38#include <windows.h>
39
40namespace WebCore {
41
42GDIObjectCounter::GDIObjectCounter(const String& identifier)
43{
44    init(identifier);
45}
46
47GDIObjectCounter::GDIObjectCounter(const String& className, void* instance)
48{
49    init(String::format("%s (%p)", className.latin1().data(), instance));
50}
51
52void GDIObjectCounter::init(const String& identifier)
53{
54    m_identifier = identifier;
55    m_startCount = currentGDIObjectsInUse();
56    m_endCount = 0;
57}
58
59GDIObjectCounter::~GDIObjectCounter()
60{
61    m_endCount = currentGDIObjectsInUse();
62    int leaked = m_endCount - m_startCount;
63    if (leaked != 0)
64        LOG(PlatformLeaks, "%s: leaked %d GDI object%s!", m_identifier.latin1().data(), leaked, leaked == 1 ? "" : "s");
65}
66
67unsigned GDIObjectCounter::currentGDIObjectsInUse()
68{
69    return ::GetGuiResources(::GetCurrentProcess(), GR_GDIOBJECTS);
70}
71
72} // namespace WebCore
73
74#endif // !defined(NDEBUG)
75