1 /* 2 * Copyright 2010, The Android Open Source Project 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 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * 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 THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef V8Counters_h 27 #define V8Counters_h 28 29 #if USE(V8) 30 31 #ifdef ANDROID_INSTRUMENT 32 33 #include <PlatformString.h> 34 #include <v8.h> 35 #include <wtf/HashMap.h> 36 37 namespace WebCore { 38 39 class V8Counters { 40 public: 41 // Counter callbacks, see v8.h 42 static int* counterForName(const char* name); 43 44 static void* createHistogram(const char* name, 45 int min, 46 int max, 47 size_t buckets); 48 49 static void addHistogramSample(void* histogram, int sample); 50 51 static void initCounters(); 52 static void dumpCounters(); 53 private: 54 class Counter { 55 public: 56 Counter(bool isHistogram); 57 58 int count() { return m_count; } 59 int sampleTotal() { return m_sampleTotal; } 60 bool isHistogram() { return m_isHistogram; } 61 void addSample(int32_t sample); 62 63 operator int*() { return &m_count; } 64 private: 65 int m_count; 66 int m_sampleTotal; 67 bool m_isHistogram; 68 }; 69 70 static HashMap<String, Counter*> m_counters; 71 }; 72 73 } 74 75 #endif // ANDROID_INSTRUMENT 76 #endif // USE(V8) 77 #endif // V8Counters_h 78
