1 /* 2 * Copyright (C) 2013 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 33 #include "modules/performance/WorkerGlobalScopePerformance.h" 34 35 #include "core/workers/WorkerGlobalScope.h" 36 #include "modules/performance/WorkerPerformance.h" 37 38 namespace WebCore { 39 40 WorkerGlobalScopePerformance::WorkerGlobalScopePerformance() 41 { 42 } 43 44 const char* WorkerGlobalScopePerformance::supplementName() 45 { 46 return "WorkerGlobalScopePerformance"; 47 } 48 49 WorkerGlobalScopePerformance& WorkerGlobalScopePerformance::from(WorkerGlobalScope& context) 50 { 51 WorkerGlobalScopePerformance* supplement = static_cast<WorkerGlobalScopePerformance*>(WillBeHeapSupplement<WorkerGlobalScope>::from(context, supplementName())); 52 if (!supplement) { 53 supplement = new WorkerGlobalScopePerformance(); 54 provideTo(context, supplementName(), adoptPtrWillBeNoop(supplement)); 55 } 56 return *supplement; 57 } 58 59 WorkerPerformance* WorkerGlobalScopePerformance::performance(WorkerGlobalScope& context) 60 { 61 return from(context).performance(); 62 } 63 64 WorkerPerformance* WorkerGlobalScopePerformance::performance() 65 { 66 if (!m_performance) 67 m_performance = WorkerPerformance::create(); 68 return m_performance.get(); 69 } 70 71 void WorkerGlobalScopePerformance::trace(Visitor* visitor) 72 { 73 visitor->trace(m_performance); 74 WillBeHeapSupplement<WorkerGlobalScope>::trace(visitor); 75 } 76 77 } // namespace WebCore 78