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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef ThreadingTraits_h | 5 #ifndef ThreadingTraits_h |
6 #define ThreadingTraits_h | 6 #define ThreadingTraits_h |
7 | 7 |
8 #include "wtf/Allocator.h" | 8 #include "wtf/Allocator.h" |
9 #include "wtf/Deque.h" | 9 #include "wtf/Deque.h" |
10 #include "wtf/HashCountedSet.h" | 10 #include "wtf/HashCountedSet.h" |
11 #include "wtf/HashMap.h" | 11 #include "wtf/HashMap.h" |
12 #include "wtf/HashSet.h" | 12 #include "wtf/HashSet.h" |
13 #include "wtf/HashTable.h" | 13 #include "wtf/HashTable.h" |
14 #include "wtf/LinkedHashSet.h" | 14 #include "wtf/LinkedHashSet.h" |
15 #include "wtf/ListHashSet.h" | 15 #include "wtf/ListHashSet.h" |
16 #include "wtf/TypeTraits.h" | 16 #include "wtf/TypeTraits.h" |
17 #include "wtf/Vector.h" | 17 #include "wtf/Vector.h" |
18 | 18 |
19 namespace blink { | 19 namespace blink { |
20 | 20 |
21 template <typename T> | 21 template <typename T> |
| 22 class SameThreadCheckedMember; |
| 23 template <typename T> |
22 class TraceWrapperMember; | 24 class TraceWrapperMember; |
23 | 25 |
24 // ThreadAffinity indicates which threads objects can be used on. We | 26 // ThreadAffinity indicates which threads objects can be used on. We |
25 // distinguish between objects that can be used on the main thread | 27 // distinguish between objects that can be used on the main thread |
26 // only and objects that can be used on any thread. | 28 // only and objects that can be used on any thread. |
27 // | 29 // |
28 // For objects that can only be used on the main thread, we avoid going | 30 // For objects that can only be used on the main thread, we avoid going |
29 // through thread-local storage to get to the thread state. This is | 31 // through thread-local storage to get to the thread state. This is |
30 // important for performance. | 32 // important for performance. |
31 enum ThreadAffinity { | 33 enum ThreadAffinity { |
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76 template <typename U> | 78 template <typename U> |
77 class ThreadingTrait<const U> : public ThreadingTrait<U> {}; | 79 class ThreadingTrait<const U> : public ThreadingTrait<U> {}; |
78 | 80 |
79 template <typename T> | 81 template <typename T> |
80 struct ThreadingTrait<Member<T>> { | 82 struct ThreadingTrait<Member<T>> { |
81 STATIC_ONLY(ThreadingTrait); | 83 STATIC_ONLY(ThreadingTrait); |
82 static const ThreadAffinity Affinity = ThreadingTrait<T>::Affinity; | 84 static const ThreadAffinity Affinity = ThreadingTrait<T>::Affinity; |
83 }; | 85 }; |
84 | 86 |
85 template <typename T> | 87 template <typename T> |
| 88 struct ThreadingTrait<SameThreadCheckedMember<T>> { |
| 89 STATIC_ONLY(ThreadingTrait); |
| 90 static const ThreadAffinity Affinity = ThreadingTrait<T>::Affinity; |
| 91 }; |
| 92 |
| 93 template <typename T> |
86 struct ThreadingTrait<TraceWrapperMember<T>> { | 94 struct ThreadingTrait<TraceWrapperMember<T>> { |
87 STATIC_ONLY(ThreadingTrait); | 95 STATIC_ONLY(ThreadingTrait); |
88 static const ThreadAffinity Affinity = ThreadingTrait<T>::Affinity; | 96 static const ThreadAffinity Affinity = ThreadingTrait<T>::Affinity; |
89 }; | 97 }; |
90 | 98 |
91 template <typename T> | 99 template <typename T> |
92 struct ThreadingTrait<WeakMember<T>> { | 100 struct ThreadingTrait<WeakMember<T>> { |
93 STATIC_ONLY(ThreadingTrait); | 101 STATIC_ONLY(ThreadingTrait); |
94 static const ThreadAffinity Affinity = ThreadingTrait<T>::Affinity; | 102 static const ThreadAffinity Affinity = ThreadingTrait<T>::Affinity; |
95 }; | 103 }; |
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189 }; | 197 }; |
190 template <typename T, typename U, typename V> | 198 template <typename T, typename U, typename V> |
191 struct ThreadingTrait<HeapHashCountedSet<T, U, V>> | 199 struct ThreadingTrait<HeapHashCountedSet<T, U, V>> |
192 : public ThreadingTrait<HashCountedSet<T, U, V, HeapAllocator>> { | 200 : public ThreadingTrait<HashCountedSet<T, U, V, HeapAllocator>> { |
193 STATIC_ONLY(ThreadingTrait); | 201 STATIC_ONLY(ThreadingTrait); |
194 }; | 202 }; |
195 | 203 |
196 } // namespace blink | 204 } // namespace blink |
197 | 205 |
198 #endif | 206 #endif |
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