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#ifndef GDIObjectCounter_h
30#define GDIObjectCounter_h
31
32#ifdef NDEBUG
33#define LOCAL_GDI_COUNTER(num, identifier) ((void)0)
34#else
35#define LOCAL_GDI_COUNTER(num, identifier) GDIObjectCounter counter##num(identifier)
36#endif
37
38#ifndef NDEBUG
39
40#include <wtf/text/WTFString.h>
41
42namespace WebCore {
43
44    class GDIObjectCounter {
45    public:
46        GDIObjectCounter(const String& identifier);
47        GDIObjectCounter(const String& className, void* instance);
48        ~GDIObjectCounter();
49
50        static unsigned currentGDIObjectsInUse();
51
52    private:
53        void init(const String& identifier);
54        String m_identifier;
55        unsigned m_startCount;
56        unsigned m_endCount;
57    };
58
59} // namespace WebCore
60
61#endif // !defined(NDEBUG)
62
63#endif // !defined(GDIObjectCounter_h)
64