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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 Computer, 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 "PlatformString.h"
41  
42  namespace 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