86 lines
2 KiB
C++
86 lines
2 KiB
C++
//===-- sanitizer_atomic.h --------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of ThreadSanitizer/AddressSanitizer runtime.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SANITIZER_ATOMIC_H
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#define SANITIZER_ATOMIC_H
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#include "sanitizer_internal_defs.h"
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namespace __sanitizer {
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enum memory_order {
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memory_order_relaxed = 1 << 0,
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memory_order_consume = 1 << 1,
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memory_order_acquire = 1 << 2,
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memory_order_release = 1 << 3,
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memory_order_acq_rel = 1 << 4,
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memory_order_seq_cst = 1 << 5
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};
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struct atomic_uint8_t {
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typedef u8 Type;
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volatile Type val_dont_use;
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};
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struct atomic_uint16_t {
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typedef u16 Type;
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volatile Type val_dont_use;
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};
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struct atomic_sint32_t {
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typedef s32 Type;
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volatile Type val_dont_use;
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};
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struct atomic_uint32_t {
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typedef u32 Type;
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volatile Type val_dont_use;
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};
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struct atomic_uint64_t {
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typedef u64 Type;
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// On 32-bit platforms u64 is not necessary aligned on 8 bytes.
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volatile ALIGNED(8) Type val_dont_use;
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};
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struct atomic_uintptr_t {
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typedef uptr Type;
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volatile Type val_dont_use;
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};
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} // namespace __sanitizer
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#if defined(__clang__) || defined(__GNUC__)
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# include "sanitizer_atomic_clang.h"
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#elif defined(_MSC_VER)
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# include "sanitizer_atomic_msvc.h"
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#else
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# error "Unsupported compiler"
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#endif
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namespace __sanitizer {
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// Clutter-reducing helpers.
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template<typename T>
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inline typename T::Type atomic_load_relaxed(const volatile T *a) {
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return atomic_load(a, memory_order_relaxed);
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}
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template<typename T>
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inline void atomic_store_relaxed(volatile T *a, typename T::Type v) {
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atomic_store(a, v, memory_order_relaxed);
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}
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} // namespace __sanitizer
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#endif // SANITIZER_ATOMIC_H
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