15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* Copyright (C) 2010 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* modification, are permitted provided that the following conditions are 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* * Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* * Redistributions in binary form must reproduce the above 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* copyright notice, this list of conditions and the following disclaimer 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* in the documentation and/or other materials provided with the 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* distribution. 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* * Neither the name of Google Inc. nor the names of its 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* contributors may be used to endorse or promote products derived from 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* this software without specific prior written permission. 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)*/ 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 32197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch#include "bindings/core/v8/ScriptGCEvent.h" 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 34197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch#include "bindings/core/v8/V8Binding.h" 3553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/inspector/ScriptGCEventListener.h" 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "wtf/CurrentTime.h" 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 39c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)namespace blink { 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)static GCEventData* isolateGCEventData() 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 43a9984bf9ddc3cf73fdae3f29134a2bab379e7029Ben Murdoch V8PerIsolateData* isolateData = V8PerIsolateData::from(v8::Isolate::GetCurrent()); 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(isolateData); 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return isolateData->gcEventData(); 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void ScriptGCEvent::addEventListener(ScriptGCEventListener* eventListener) 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) GCEventData::GCEventListeners& listeners = isolateGCEventData()->listeners(); 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (listeners.isEmpty()) { 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) v8::V8::AddGCPrologueCallback(ScriptGCEvent::gcPrologueCallback); 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) v8::V8::AddGCEpilogueCallback(ScriptGCEvent::gcEpilogueCallback); 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) listeners.append(eventListener); 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void ScriptGCEvent::removeEventListener(ScriptGCEventListener* eventListener) 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(eventListener); 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) GCEventData::GCEventListeners& listeners = isolateGCEventData()->listeners(); 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(!listeners.isEmpty()); 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) size_t i = listeners.find(eventListener); 6406f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles) ASSERT(i != kNotFound); 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) listeners.remove(i); 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (listeners.isEmpty()) { 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) v8::V8::RemoveGCPrologueCallback(ScriptGCEvent::gcPrologueCallback); 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) v8::V8::RemoveGCEpilogueCallback(ScriptGCEvent::gcEpilogueCallback); 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void ScriptGCEvent::getHeapSize(HeapInfo& info) 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) v8::HeapStatistics heapStatistics; 75926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) v8::Isolate::GetCurrent()->GetHeapStatistics(&heapStatistics); 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) info.usedJSHeapSize = heapStatistics.used_heap_size(); 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) info.totalJSHeapSize = heapStatistics.total_physical_size(); 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) info.jsHeapSizeLimit = heapStatistics.heap_size_limit(); 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)size_t ScriptGCEvent::getUsedHeapSize() 825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) v8::HeapStatistics heapStatistics; 84926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) v8::Isolate::GetCurrent()->GetHeapStatistics(&heapStatistics); 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return heapStatistics.used_heap_size(); 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void ScriptGCEvent::gcPrologueCallback(v8::GCType type, v8::GCCallbackFlags flags) 895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) GCEventData* gcEventData = isolateGCEventData(); 915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) gcEventData->setStartTime(WTF::monotonicallyIncreasingTime()); 925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) gcEventData->setUsedHeapSize(getUsedHeapSize()); 935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void ScriptGCEvent::gcEpilogueCallback(v8::GCType type, v8::GCCallbackFlags flags) 965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) GCEventData* gcEventData = isolateGCEventData(); 985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!gcEventData->usedHeapSize()) 995c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return; 1005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) double endTime = WTF::monotonicallyIncreasingTime(); 1015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) size_t usedHeapSize = getUsedHeapSize(); 1025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) size_t collectedBytes = usedHeapSize > gcEventData->usedHeapSize() ? 0 : gcEventData->usedHeapSize() - usedHeapSize; 1035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) GCEventData::GCEventListeners& listeners = gcEventData->listeners(); 1045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (GCEventData::GCEventListeners::iterator i = listeners.begin(); i != listeners.end(); ++i) 1055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) (*i)->didGC(gcEventData->startTime(), endTime, collectedBytes); 1065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) gcEventData->clear(); 1075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 10802772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 109c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)} // namespace blink 1105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 111