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1 /* | |
2 * Copyright (C) 2015 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 PerformanceObserverRegistration_h | |
32 #define PerformanceObserverRegistration_h | |
33 | |
34 #include "core/timing/PerformanceObserver.h" | |
35 #include "platform/heap/Handle.h" | |
36 #include "wtf/HashSet.h" | |
37 #include "wtf/text/AtomicString.h" | |
38 #include "wtf/text/AtomicStringHash.h" | |
39 | |
40 namespace blink { | |
41 | |
42 class PerformanceBase; | |
43 | |
44 class PerformanceObserverRegistration final : public GarbageCollectedFinalized<P erformanceObserverRegistration> { | |
45 public: | |
46 static PerformanceObserverRegistration* create(PerformanceObserver&, Perform anceBase*, const HashSet<AtomicString>& typeFilter); | |
esprehn
2015/07/18 22:24:16
Why the PerformanceBase argument? The observer sho
MikeB
2015/07/20 23:06:50
Got rid of this class entirely. Simplifies things
| |
47 ~PerformanceObserverRegistration(); | |
48 | |
49 void resetObservation(const HashSet<AtomicString>& typeFilter); | |
50 | |
51 void unregister(); | |
52 | |
53 PerformanceObserver& observer() const { return *m_observer; } | |
54 PerformanceBase* performance() const { return m_performance.get(); } | |
esprehn
2015/07/18 22:24:16
Can this be null? i don't think it can, you want *
| |
55 | |
56 DECLARE_TRACE(); | |
57 | |
58 void dispose(); | |
59 | |
60 void addReference() { ++m_referenceCount; } | |
esprehn
2015/07/18 22:24:16
This manual reference count is very weird, what ar
| |
61 | |
62 bool shouldReceiveEntryFrom(const AtomicString& typeName) const; | |
63 | |
64 private: | |
65 PerformanceObserverRegistration(PerformanceObserver&, PerformanceBase*, cons t HashSet<AtomicString>& typeFilter); | |
66 | |
67 Member<PerformanceObserver> m_observer; | |
68 WeakMember<PerformanceBase> m_performance; | |
esprehn
2015/07/18 22:24:16
the observer should know the performance.
| |
69 | |
70 HashSet<AtomicString> m_typeFilter; | |
esprehn
2015/07/18 22:24:17
This should be an unsigned bitfield where each bit
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71 unsigned m_referenceCount; | |
72 }; | |
73 | |
74 } // namespace blink | |
75 | |
76 #endif // PerformanceObserverRegistration_h | |
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