1 /* 2 * Copyright (C) 2011 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 #include "config.h" 32 #include "platform/EventTracer.h" 33 34 #include "public/platform/Platform.h" 35 #include "wtf/Assertions.h" 36 #include <stdio.h> 37 38 namespace WebCore { 39 40 COMPILE_ASSERT(sizeof(blink::Platform::TraceEventHandle) == sizeof(TraceEvent::TraceEventHandle), TraceEventHandle_types_must_be_compatible); 41 42 // The dummy variable is needed to avoid a crash when someone updates the state variables 43 // before EventTracer::initialize() is called. 44 long dummyTraceSamplingState = 0; 45 long* traceSamplingState[3] = {&dummyTraceSamplingState, &dummyTraceSamplingState, &dummyTraceSamplingState }; 46 47 void EventTracer::initialize() 48 { 49 traceSamplingState[0] = blink::Platform::current()->getTraceSamplingState(0); 50 // FIXME: traceSamplingState[0] can be 0 in split-dll build. http://crbug.com/256965 51 if (!traceSamplingState[0]) 52 traceSamplingState[0] = &dummyTraceSamplingState; 53 traceSamplingState[1] = blink::Platform::current()->getTraceSamplingState(1); 54 if (!traceSamplingState[1]) 55 traceSamplingState[1] = &dummyTraceSamplingState; 56 traceSamplingState[2] = blink::Platform::current()->getTraceSamplingState(2); 57 if (!traceSamplingState[2]) 58 traceSamplingState[2] = &dummyTraceSamplingState; 59 } 60 61 const unsigned char* EventTracer::getTraceCategoryEnabledFlag(const char* categoryName) 62 { 63 return blink::Platform::current()->getTraceCategoryEnabledFlag(categoryName); 64 } 65 66 TraceEvent::TraceEventHandle EventTracer::addTraceEvent(char phase, const unsigned char* categoryEnabledFlag, 67 const char* name, unsigned long long id, int numArgs, const char** argNames, 68 const unsigned char* argTypes, const unsigned long long* argValues, unsigned char flags) 69 { 70 return blink::Platform::current()->addTraceEvent(phase, categoryEnabledFlag, name, id, numArgs, argNames, argTypes, argValues, flags); 71 } 72 73 void EventTracer::updateTraceEventDuration(const unsigned char* categoryEnabledFlag, const char* name, TraceEvent::TraceEventHandle handle) 74 { 75 blink::Platform::current()->updateTraceEventDuration(categoryEnabledFlag, name, handle); 76 } 77 78 } // namespace WebCore 79
