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