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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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34 #include "bindings/core/v8/ScriptValue.h" | 34 #include "bindings/core/v8/ScriptValue.h" |
35 #include "wtf/Deque.h" | 35 #include "wtf/Deque.h" |
36 #include "wtf/HashMap.h" | 36 #include "wtf/HashMap.h" |
37 #include "wtf/HashSet.h" | 37 #include "wtf/HashSet.h" |
38 #include "wtf/Noncopyable.h" | 38 #include "wtf/Noncopyable.h" |
39 #include "wtf/PassRefPtr.h" | 39 #include "wtf/PassRefPtr.h" |
40 #include "wtf/RefPtr.h" | 40 #include "wtf/RefPtr.h" |
41 | 41 |
42 namespace WebCore { | 42 namespace WebCore { |
43 | 43 |
44 class AsyncFileSystemCallbacks; | |
45 class Event; | 44 class Event; |
46 class EventListener; | 45 class EventListener; |
47 class EventTarget; | 46 class EventTarget; |
48 class ExecutionContext; | 47 class ExecutionContext; |
49 class ExecutionContextTask; | 48 class ExecutionContextTask; |
50 class MutationObserver; | 49 class MutationObserver; |
51 class XMLHttpRequest; | 50 class XMLHttpRequest; |
52 | 51 |
53 class AsyncCallStackTracker { | 52 class AsyncCallStackTracker { |
54 WTF_MAKE_NONCOPYABLE(AsyncCallStackTracker); | 53 WTF_MAKE_NONCOPYABLE(AsyncCallStackTracker); |
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97 | 96 |
98 void didEnqueueMutationRecord(ExecutionContext*, MutationObserver*, const Sc
riptValue& callFrames); | 97 void didEnqueueMutationRecord(ExecutionContext*, MutationObserver*, const Sc
riptValue& callFrames); |
99 bool hasEnqueuedMutationRecord(ExecutionContext*, MutationObserver*); | 98 bool hasEnqueuedMutationRecord(ExecutionContext*, MutationObserver*); |
100 void didClearAllMutationRecords(ExecutionContext*, MutationObserver*); | 99 void didClearAllMutationRecords(ExecutionContext*, MutationObserver*); |
101 void willDeliverMutationRecords(ExecutionContext*, MutationObserver*); | 100 void willDeliverMutationRecords(ExecutionContext*, MutationObserver*); |
102 | 101 |
103 void didPostExecutionContextTask(ExecutionContext*, ExecutionContextTask*, c
onst ScriptValue& callFrames); | 102 void didPostExecutionContextTask(ExecutionContext*, ExecutionContextTask*, c
onst ScriptValue& callFrames); |
104 void didKillAllExecutionContextTasks(ExecutionContext*); | 103 void didKillAllExecutionContextTasks(ExecutionContext*); |
105 void willPerformExecutionContextTask(ExecutionContext*, ExecutionContextTask
*); | 104 void willPerformExecutionContextTask(ExecutionContext*, ExecutionContextTask
*); |
106 | 105 |
107 void didEnqueueAsyncFileSystemCallback(ExecutionContext*, AsyncFileSystemCal
lbacks*, const ScriptValue& callFrames); | |
108 void didRemoveAsyncFileSystemCallback(ExecutionContext*, AsyncFileSystemCall
backs*); | |
109 void willHandleAsyncFileSystemCallback(ExecutionContext*, AsyncFileSystemCal
lbacks*, bool hasMore); | |
110 | |
111 void didEnqueueV8AsyncTask(ExecutionContext*, const String& eventName, int i
d, const ScriptValue& callFrames); | 106 void didEnqueueV8AsyncTask(ExecutionContext*, const String& eventName, int i
d, const ScriptValue& callFrames); |
112 void willHandleV8AsyncTask(ExecutionContext*, const String& eventName, int i
d); | 107 void willHandleV8AsyncTask(ExecutionContext*, const String& eventName, int i
d); |
113 | 108 |
114 void willRescheduleAsyncCallChain(); | |
115 void didRescheduleAsyncCallChain(); | |
116 | |
117 void didFireAsyncCall(); | 109 void didFireAsyncCall(); |
118 void clear(); | 110 void clear(); |
119 | 111 |
120 private: | 112 private: |
121 void willHandleXHREvent(XMLHttpRequest*, EventTarget*, Event*); | 113 void willHandleXHREvent(XMLHttpRequest*, EventTarget*, Event*); |
122 | 114 |
123 PassRefPtr<AsyncCallChain> createAsyncCallChain(const String& description, c
onst ScriptValue& callFrames); | 115 PassRefPtr<AsyncCallChain> createAsyncCallChain(const String& description, c
onst ScriptValue& callFrames); |
124 void setCurrentAsyncCallChain(ExecutionContext*, PassRefPtr<AsyncCallChain>)
; | 116 void setCurrentAsyncCallChain(ExecutionContext*, PassRefPtr<AsyncCallChain>)
; |
125 void clearCurrentAsyncCallChain(); | 117 void clearCurrentAsyncCallChain(); |
126 static void ensureMaxAsyncCallChainDepth(AsyncCallChain*, unsigned); | 118 static void ensureMaxAsyncCallChainDepth(AsyncCallChain*, unsigned); |
127 bool validateCallFrames(const ScriptValue& callFrames); | 119 bool validateCallFrames(const ScriptValue& callFrames); |
128 | 120 |
129 class ExecutionContextData; | 121 class ExecutionContextData; |
130 ExecutionContextData* createContextDataIfNeeded(ExecutionContext*); | 122 ExecutionContextData* createContextDataIfNeeded(ExecutionContext*); |
131 | 123 |
132 unsigned m_maxAsyncCallStackDepth; | 124 unsigned m_maxAsyncCallStackDepth; |
133 RefPtr<AsyncCallChain> m_currentAsyncCallChain; | 125 RefPtr<AsyncCallChain> m_currentAsyncCallChain; |
134 unsigned m_nestedAsyncCallCount; | 126 unsigned m_nestedAsyncCallCount; |
135 bool m_rescheduleNextAsyncCallChain; | |
136 RefPtr<AsyncCallChain> m_rescheduledAsyncCallChain; | |
137 typedef HashMap<ExecutionContext*, ExecutionContextData*> ExecutionContextDa
taMap; | 127 typedef HashMap<ExecutionContext*, ExecutionContextData*> ExecutionContextDa
taMap; |
138 ExecutionContextDataMap m_executionContextDataMap; | 128 ExecutionContextDataMap m_executionContextDataMap; |
139 }; | 129 }; |
140 | 130 |
141 } // namespace WebCore | 131 } // namespace WebCore |
142 | 132 |
143 #endif // !defined(AsyncCallStackTracker_h) | 133 #endif // !defined(AsyncCallStackTracker_h) |
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