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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 #ifndef AsyncCallStackTracker_h | |
32 #define AsyncCallStackTracker_h | |
33 | |
34 #include "bindings/v8/ScriptValue.h" | |
35 #include "wtf/Deque.h" | |
36 #include "wtf/HashMap.h" | |
37 #include "wtf/HashSet.h" | |
38 #include "wtf/Noncopyable.h" | |
39 #include "wtf/PassRefPtr.h" | |
40 #include "wtf/RefPtr.h" | |
41 | |
42 namespace WebCore { | |
43 | |
44 class AsyncCallStackTracker { | |
45 WTF_MAKE_NONCOPYABLE(AsyncCallStackTracker); | |
46 public: | |
47 class AsyncCallStack : public RefCounted<AsyncCallStack> { | |
48 public: | |
49 AsyncCallStack(const ScriptValue&); | |
50 ~AsyncCallStack(); | |
51 const ScriptValue& callFrames() const { return m_callFrames; } | |
yurys
2013/12/04 15:25:52
Just return it by value.
aandrey
2013/12/04 15:57:26
why? :)
yurys
2013/12/05 11:37:48
Because it is a bad idea in general to return some
aandrey
2013/12/05 13:03:40
Done.
| |
52 private: | |
53 ScriptValue m_callFrames; | |
54 }; | |
55 | |
56 typedef Deque<RefPtr<AsyncCallStack>, 4> AsyncCallStackVector; | |
57 | |
58 class AsyncCallChain : public RefCounted<AsyncCallChain> { | |
59 public: | |
60 AsyncCallChain() { } | |
61 AsyncCallChain(const AsyncCallChain& t) : m_callStacks(t.m_callStacks) { } | |
62 const AsyncCallStackVector& callStacks() const { return m_callStacks; } | |
yurys
2013/12/04 15:25:52
ditto.
aandrey
2013/12/05 13:03:40
Done.
| |
63 private: | |
64 friend class AsyncCallStackTracker; | |
65 AsyncCallStackVector m_callStacks; | |
66 }; | |
67 | |
68 AsyncCallStackTracker(); | |
69 | |
70 bool isEnabled() const { return m_maxAsyncCallStackDepth; } | |
71 void setAsyncCallStackDepth(int); | |
72 const AsyncCallChain* currentAsyncCallChain() const; | |
73 | |
74 void didInstallTimer(int timerId, bool singleShot, ScriptValue callFrames); | |
yurys
2013/12/04 15:25:52
const ScriptValue&
aandrey
2013/12/04 15:57:26
Done.
| |
75 void didRemoveTimer(int timerId); | |
76 void willFireTimer(int timerId); | |
77 | |
78 void didRequestAnimationFrame(int callbackId, ScriptValue callFrames); | |
yurys
2013/12/04 15:25:52
const ScriptValue&
aandrey
2013/12/04 15:57:26
Done.
| |
79 void didCancelAnimationFrame(int callbackId); | |
80 void willFireAnimationFrame(int callbackId); | |
81 | |
82 void didFireAsyncCall(); | |
83 void clear(); | |
84 | |
85 private: | |
86 PassRefPtr<AsyncCallChain> createAsyncCallChain(ScriptValue& callFrames); | |
87 static void ensureMaxAsyncCallChainDepth(AsyncCallChain*, unsigned); | |
88 static bool validateCallFrames(ScriptValue& callFrames); | |
89 | |
90 unsigned m_maxAsyncCallStackDepth; | |
91 RefPtr<AsyncCallChain> m_currentAsyncCallChain; | |
92 HashSet<int> m_intervalTimerIds; | |
93 HashMap<int, RefPtr<AsyncCallChain> > m_timerCallChains; | |
94 HashMap<int, RefPtr<AsyncCallChain> > m_animationFrameCallChains; | |
95 }; | |
96 | |
97 } // namespace WebCore | |
98 | |
99 #endif // !defined(AsyncCallStackTracker_h) | |
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