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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef LIBRARIES_SDK_UTIL_SIMPLE_LOCK_H_ |
| 6 #define LIBRARIES_SDK_UTIL_SIMPLE_LOCK_H_ |
| 7 |
| 8 #include "pthread.h" |
| 9 #include "sdk_util/macros.h" |
| 10 |
| 11 namespace sdk_util { |
| 12 |
| 13 /* |
| 14 * SimpleLock |
| 15 * |
| 16 * A pthread mutex object, with automatic initialization and destruction. |
| 17 * Should be used with AutoLock where possible. |
| 18 */ |
| 19 class SimpleLock { |
| 20 public: |
| 21 SimpleLock() { |
| 22 pthread_mutex_init(&lock_, NULL); |
| 23 } |
| 24 |
| 25 ~SimpleLock() { |
| 26 pthread_mutex_destroy(&lock_); |
| 27 } |
| 28 |
| 29 void Lock() const { pthread_mutex_lock(&lock_); } |
| 30 void Unlock() const { pthread_mutex_unlock(&lock_); } |
| 31 |
| 32 pthread_mutex_t* mutex() const { return &lock_; } |
| 33 |
| 34 private: |
| 35 mutable pthread_mutex_t lock_; |
| 36 |
| 37 DISALLOW_COPY_AND_ASSIGN(SimpleLock); |
| 38 }; |
| 39 |
| 40 } // namespace sdk_util |
| 41 |
| 42 #endif // LIBRARIES_SDK_UTIL_SIMPLE_LOCK_H_ |
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