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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkMutex_DEFINED | 8 #ifndef SkMutex_DEFINED |
9 #define SkMutex_DEFINED | 9 #define SkMutex_DEFINED |
10 | 10 |
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98 /** Assert that we're holding the mutex. */ | 98 /** Assert that we're holding the mutex. */ |
99 void assertHeld() { | 99 void assertHeld() { |
100 SkASSERT(fMutex); | 100 SkASSERT(fMutex); |
101 fMutex->assertHeld(); | 101 fMutex->assertHeld(); |
102 } | 102 } |
103 | 103 |
104 private: | 104 private: |
105 Lock* fMutex; | 105 Lock* fMutex; |
106 }; | 106 }; |
107 | 107 |
| 108 // SkAutoTExclusive is a lighter weight version of SkAutoTAcquire. It assumes th
at there is a valid |
| 109 // mutex, thus removing the check for the null pointer. |
| 110 template <typename Lock> |
| 111 class SkAutoTExclusive { |
| 112 public: |
| 113 SkAutoTExclusive(Lock& lock) : fLock(lock) { lock.acquire(); } |
| 114 ~SkAutoTExclusive() { fLock.release(); } |
| 115 private: |
| 116 Lock &fLock; |
| 117 }; |
| 118 |
108 typedef SkAutoTAcquire<SkBaseMutex> SkAutoMutexAcquire; | 119 typedef SkAutoTAcquire<SkBaseMutex> SkAutoMutexAcquire; |
109 #define SkAutoMutexAcquire(...) SK_REQUIRE_LOCAL_VAR(SkAutoMutexAcquire) | 120 #define SkAutoMutexAcquire(...) SK_REQUIRE_LOCAL_VAR(SkAutoMutexAcquire) |
110 | 121 |
| 122 typedef SkAutoTExclusive<SkMutex> SkAutoMutexExclusive; |
| 123 #define SkAutoMutexExclusive(...) SK_REQUIRE_LOCAL_VAR(SkAutoMutexExclusive) |
| 124 |
111 #endif//SkMutex_DEFINED | 125 #endif//SkMutex_DEFINED |
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