bungeman@google.com | d9947f6 | 2013-12-18 15:27:39 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2013 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #ifndef SkMutex_none_DEFINED |
| 9 | #define SkMutex_none_DEFINED |
| 10 | |
| 11 | /** Non-mutex mutex for uniprocessor systems. */ |
| 12 | |
| 13 | struct SkBaseMutex { |
| 14 | void acquire() { } |
| 15 | void release() { } |
| 16 | }; |
| 17 | |
| 18 | class SkMutex : public SkBaseMutex { |
| 19 | public: |
| 20 | SkMutex() { } |
| 21 | ~SkMutex() { } |
| 22 | |
| 23 | private: |
| 24 | SkMutex(const SkMutex&); |
| 25 | SkMutex& operator=(const SkMutex&); |
| 26 | }; |
| 27 | |
| 28 | // Using POD-style initialization prevents the generation of a static initializer. |
| 29 | #define SK_DECLARE_STATIC_MUTEX(name) static SkBaseMutex name = { } |
| 30 | |
| 31 | // Special case used when the static mutex must be available globally. |
| 32 | #define SK_DECLARE_GLOBAL_MUTEX(name) SkBaseMutex name = { } |
| 33 | |
| 34 | #endif |