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| 1 | //===-- Definition of type which can represent a futex word ---------------===// |
|---|---|
| 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 LLVM_LIBC_TYPES___FUTEX_WORD_H |
| 10 | #define LLVM_LIBC_TYPES___FUTEX_WORD_H |
| 11 | |
| 12 | typedef struct { |
| 13 | // Futex word should be aligned appropriately to allow target atomic |
| 14 | // instructions. This declaration mimics the internal setup. |
| 15 | _Alignas(sizeof(__UINT32_TYPE__) > _Alignof(__UINT32_TYPE__) |
| 16 | ? sizeof(__UINT32_TYPE__) |
| 17 | : _Alignof(__UINT32_TYPE__)) __UINT32_TYPE__ __word; |
| 18 | } __futex_word; |
| 19 | |
| 20 | #endif // LLVM_LIBC_TYPES___FUTEX_WORD_H |
| 21 |
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