// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef PLATFORM_IMPL_SHARED_POSIX_MUTEX_H_
#define PLATFORM_IMPL_SHARED_POSIX_MUTEX_H_

#include <pthread.h>

#include "platform/api/mutex.h"

namespace location {
namespace nearby {
namespace posix {

class ABSL_LOCKABLE Mutex : public api::Mutex {
 public:
  Mutex();
  ~Mutex() override;

  void Lock() ABSL_EXCLUSIVE_LOCK_FUNCTION() override;
  void Unlock() ABSL_UNLOCK_FUNCTION() override;

 private:
  friend class ConditionVariable;

  pthread_mutexattr_t attr_;
  pthread_mutex_t mutex_;
};

}  // namespace posix
}  // namespace nearby
}  // namespace location

#endif  // PLATFORM_IMPL_SHARED_POSIX_MUTEX_H_