1/*
2* Copyright (C) 2012 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 InspectorCounters_h
32#define InspectorCounters_h
33
34#include "wtf/FastAllocBase.h"
35
36#if ENABLE(ASSERT)
37#include "wtf/MainThread.h"
38#endif
39
40namespace blink {
41
42class InspectorCounters {
43public:
44    enum CounterType {
45        DocumentCounter,
46        NodeCounter,
47        JSEventListenerCounter,
48        CounterTypeLength
49    };
50
51    static inline void incrementCounter(CounterType type)
52    {
53        ASSERT(isMainThread());
54        ++s_counters[type];
55    }
56
57    static inline void decrementCounter(CounterType type)
58    {
59        ASSERT(isMainThread());
60        --s_counters[type];
61    }
62
63    static int counterValue(CounterType);
64
65private:
66    InspectorCounters();
67
68    static int s_counters[CounterTypeLength];
69};
70
71} // namespace blink
72
73#endif // !defined(InspectorCounters_h)
74