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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 blink {
39 
WorkerGlobalScopePerformance()40 WorkerGlobalScopePerformance::WorkerGlobalScopePerformance()
41 {
42 }
43 
supplementName()44 const char* WorkerGlobalScopePerformance::supplementName()
45 {
46     return "WorkerGlobalScopePerformance";
47 }
48 
from(WorkerGlobalScope & context)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 
performance(WorkerGlobalScope & context)59 WorkerPerformance* WorkerGlobalScopePerformance::performance(WorkerGlobalScope& context)
60 {
61     return from(context).performance();
62 }
63 
performance()64 WorkerPerformance* WorkerGlobalScopePerformance::performance()
65 {
66     if (!m_performance)
67         m_performance = WorkerPerformance::create();
68     return m_performance.get();
69 }
70 
trace(Visitor * visitor)71 void WorkerGlobalScopePerformance::trace(Visitor* visitor)
72 {
73     visitor->trace(m_performance);
74     WillBeHeapSupplement<WorkerGlobalScope>::trace(visitor);
75 }
76 
77 } // namespace blink
78