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