1/*
2 * Copyright (C) 2012 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 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef HeapStatistics_h
27#define HeapStatistics_h
28
29#include "JSExportMacros.h"
30#include <wtf/Deque.h>
31
32namespace JSC {
33
34class Heap;
35
36class HeapStatistics {
37public:
38    NO_RETURN static void exitWithFailure();
39    JS_EXPORT_PRIVATE static void reportSuccess();
40
41    static void initialize();
42    static void recordGCPauseTime(double start, double end);
43    static size_t parseMemoryAmount(char*);
44
45    static void showObjectStatistics(Heap*);
46
47    static const size_t KB = 1024;
48    static const size_t MB = 1024 * KB;
49    static const size_t GB = 1024 * MB;
50
51private:
52    static void logStatistics();
53    static Vector<double>* s_pauseTimeStarts;
54    static Vector<double>* s_pauseTimeEnds;
55    static double s_startTime;
56    static double s_endTime;
57};
58
59} // namespace JSC
60
61#endif
62