| // Copyright (c) 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROMEOS_COMPONENTS_NEARBY_LOCK_IMPL_H_ |
| #define CHROMEOS_COMPONENTS_NEARBY_LOCK_IMPL_H_ |
| |
| #include "base/macros.h" |
| #include "base/synchronization/lock.h" |
| #include "base/threading/platform_thread.h" |
| #include "chromeos/components/nearby/lock_base.h" |
| |
| namespace chromeos { |
| |
| namespace nearby { |
| |
| // Concrete location::nearby::Lock implementation. |
| class LockImpl : public LockBase { |
| public: |
| LockImpl(); |
| ~LockImpl() override; |
| |
| private: |
| friend class LockImplTest; |
| |
| // location::nearby::Lock: |
| void lock() override; |
| void unlock() override; |
| |
| // chromeos::nearby::LockBase: |
| bool IsHeldByCurrentThread() override; |
| |
| base::Lock real_lock_; |
| base::Lock bookkeeping_lock_; |
| base::PlatformThreadId owning_thread_id_ = base::kInvalidThreadId; |
| size_t num_acquisitions_ = 0; |
| |
| DISALLOW_COPY_AND_ASSIGN(LockImpl); |
| }; |
| |
| } // namespace nearby |
| |
| } // namespace chromeos |
| |
| #endif // CHROMEOS_COMPONENTS_NEARBY_LOCK_IMPL_H_ |