1 /* 2 * Copyright (C) 2010 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 "V8GCForContextDispose.h" 33 34 #include <wtf/StdLibExtras.h> 35 36 namespace WebCore { 37 38 V8GCForContextDispose::V8GCForContextDispose() 39 : m_pseudoIdleTimer(this, &V8GCForContextDispose::pseudoIdleTimerFired) 40 { 41 } 42 43 void V8GCForContextDispose::notifyContextDisposed() 44 { 45 v8::V8::ContextDisposedNotification(); 46 if (!m_pseudoIdleTimer.isActive()) 47 m_pseudoIdleTimer.startOneShot(0.8); 48 } 49 50 void V8GCForContextDispose::notifyIdleSooner(double maximumFireInterval) 51 { 52 if (m_pseudoIdleTimer.isActive()) { 53 double nextFireInterval = m_pseudoIdleTimer.nextFireInterval(); 54 if (nextFireInterval > maximumFireInterval) { 55 m_pseudoIdleTimer.stop(); 56 m_pseudoIdleTimer.startOneShot(maximumFireInterval); 57 } 58 } 59 } 60 61 V8GCForContextDispose& V8GCForContextDispose::instance() 62 { 63 DEFINE_STATIC_LOCAL(V8GCForContextDispose, staticInstance, ()); 64 return staticInstance; 65 } 66 67 void V8GCForContextDispose::pseudoIdleTimerFired(Timer<V8GCForContextDispose>*) 68 { 69 v8::V8::IdleNotification(); 70 } 71 72 } // namespace WebCore 73
