1//===-- mutex.h -------------------------------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef GWP_ASAN_MUTEX_H_
10#define GWP_ASAN_MUTEX_H_
11
12#include "gwp_asan/platform_specific/mutex_fuchsia.h" // IWYU pragma: keep
13#include "gwp_asan/platform_specific/mutex_posix.h"   // IWYU pragma: keep
14
15namespace gwp_asan {
16class Mutex final : PlatformMutex {
17public:
18  constexpr Mutex() = default;
19  ~Mutex() = default;
20  Mutex(const Mutex &) = delete;
21  Mutex &operator=(const Mutex &) = delete;
22  // Lock the mutex.
23  void lock();
24  // Nonblocking trylock of the mutex. Returns true if the lock was acquired.
25  bool tryLock();
26  // Unlock the mutex.
27  void unlock();
28};
29
30class ScopedLock {
31public:
32  explicit ScopedLock(Mutex &Mx) : Mu(Mx) { Mu.lock(); }
33  ~ScopedLock() { Mu.unlock(); }
34  ScopedLock(const ScopedLock &) = delete;
35  ScopedLock &operator=(const ScopedLock &) = delete;
36
37private:
38  Mutex Μ
39};
40} // namespace gwp_asan
41
42#endif // GWP_ASAN_MUTEX_H_
43