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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 BASE_SYNCHRONIZATION_LOCK_IMPL_H_ | 5 #ifndef BASE_SYNCHRONIZATION_LOCK_IMPL_H_ | 
| 6 #define BASE_SYNCHRONIZATION_LOCK_IMPL_H_ | 6 #define BASE_SYNCHRONIZATION_LOCK_IMPL_H_ | 
| 7 #pragma once | 7 #pragma once | 
| 8 | 8 | 
| 9 #include "build/build_config.h" | 9 #include "build/build_config.h" | 
| 10 | 10 | 
| 11 #if defined(OS_WIN) | 11 #if defined(OS_WIN) | 
| 12 #include <windows.h> | 12 #include <windows.h> | 
| 13 #elif defined(OS_POSIX) | 13 #elif defined(OS_POSIX) | 
| 14 #include <pthread.h> | 14 #include <pthread.h> | 
| 15 #endif | 15 #endif | 
| 16 | 16 | 
|  | 17 #include "base/base_api.h" | 
| 17 #include "base/basictypes.h" | 18 #include "base/basictypes.h" | 
| 18 | 19 | 
| 19 namespace base { | 20 namespace base { | 
| 20 namespace internal { | 21 namespace internal { | 
| 21 | 22 | 
| 22 // This class implements the underlying platform-specific spin-lock mechanism | 23 // This class implements the underlying platform-specific spin-lock mechanism | 
| 23 // used for the Lock class.  Most users should not use LockImpl directly, but | 24 // used for the Lock class.  Most users should not use LockImpl directly, but | 
| 24 // should instead use Lock. | 25 // should instead use Lock. | 
| 25 class LockImpl { | 26 class BASE_API LockImpl { | 
| 26  public: | 27  public: | 
| 27 #if defined(OS_WIN) | 28 #if defined(OS_WIN) | 
| 28   typedef CRITICAL_SECTION OSLockType; | 29   typedef CRITICAL_SECTION OSLockType; | 
| 29 #elif defined(OS_POSIX) | 30 #elif defined(OS_POSIX) | 
| 30   typedef pthread_mutex_t OSLockType; | 31   typedef pthread_mutex_t OSLockType; | 
| 31 #endif | 32 #endif | 
| 32 | 33 | 
| 33   LockImpl(); | 34   LockImpl(); | 
| 34   ~LockImpl(); | 35   ~LockImpl(); | 
| 35 | 36 | 
| (...skipping 18 matching lines...) Expand all  Loading... | 
| 54  private: | 55  private: | 
| 55   OSLockType os_lock_; | 56   OSLockType os_lock_; | 
| 56 | 57 | 
| 57   DISALLOW_COPY_AND_ASSIGN(LockImpl); | 58   DISALLOW_COPY_AND_ASSIGN(LockImpl); | 
| 58 }; | 59 }; | 
| 59 | 60 | 
| 60 }  // namespace internal | 61 }  // namespace internal | 
| 61 }  // namespace base | 62 }  // namespace base | 
| 62 | 63 | 
| 63 #endif  // BASE_SYNCHRONIZATION_LOCK_IMPL_H_ | 64 #endif  // BASE_SYNCHRONIZATION_LOCK_IMPL_H_ | 
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