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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 // WARNING: Thread local storage is a bit tricky to get right. Please make | 5 // WARNING: Thread local storage is a bit tricky to get right. Please make |
6 // sure that this is really the proper solution for what you're trying to | 6 // sure that this is really the proper solution for what you're trying to |
7 // achieve. Don't prematurely optimize, most likely you can just use a Lock. | 7 // achieve. Don't prematurely optimize, most likely you can just use a Lock. |
8 // | 8 // |
9 // These classes implement a wrapper around the platform's TLS storage | 9 // These classes implement a wrapper around the platform's TLS storage |
10 // mechanism. On construction, they will allocate a TLS slot, and free the | 10 // mechanism. On construction, they will allocate a TLS slot, and free the |
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50 | 50 |
51 #include "build/build_config.h" | 51 #include "build/build_config.h" |
52 | 52 |
53 #if defined(OS_POSIX) | 53 #if defined(OS_POSIX) |
54 #include <pthread.h> | 54 #include <pthread.h> |
55 #endif | 55 #endif |
56 | 56 |
57 #include "mojo/public/system/macros.h" | 57 #include "mojo/public/system/macros.h" |
58 | 58 |
59 namespace mojo { | 59 namespace mojo { |
60 namespace utility { | |
61 namespace internal { | 60 namespace internal { |
62 | 61 |
63 // Helper functions that abstract the cross-platform APIs. Do not use directly. | 62 // Helper functions that abstract the cross-platform APIs. Do not use directly. |
64 struct ThreadLocalPlatform { | 63 struct ThreadLocalPlatform { |
65 #if defined(OS_WIN) | 64 #if defined(OS_WIN) |
66 typedef unsigned long SlotType; | 65 typedef unsigned long SlotType; |
67 #elif defined(OS_POSIX) | 66 #elif defined(OS_POSIX) |
68 typedef pthread_key_t SlotType; | 67 typedef pthread_key_t SlotType; |
69 #endif | 68 #endif |
70 | 69 |
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117 void Set(bool val) { | 116 void Set(bool val) { |
118 tlp_.Set(val ? this : NULL); | 117 tlp_.Set(val ? this : NULL); |
119 } | 118 } |
120 | 119 |
121 private: | 120 private: |
122 ThreadLocalPointer<void> tlp_; | 121 ThreadLocalPointer<void> tlp_; |
123 | 122 |
124 MOJO_DISALLOW_COPY_AND_ASSIGN(ThreadLocalBoolean); | 123 MOJO_DISALLOW_COPY_AND_ASSIGN(ThreadLocalBoolean); |
125 }; | 124 }; |
126 | 125 |
127 } // namespace utility | |
128 } // namespace mojo | 126 } // namespace mojo |
129 | 127 |
130 #endif // MOJO_PUBLIC_UTILITY_THREAD_LOCAL_H_ | 128 #endif // MOJO_PUBLIC_UTILITY_THREAD_LOCAL_H_ |
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