| 1 | //===-- Linux implementation of the call_once function --------------------===// |
|---|---|
| 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 | #include "src/threads/call_once.h" |
| 10 | #include "src/__support/common.h" |
| 11 | #include "src/__support/threads/callonce.h" |
| 12 | |
| 13 | #include <threads.h> // For once_flag and __call_once_func_t definitions. |
| 14 | |
| 15 | namespace LIBC_NAMESPACE { |
| 16 | |
| 17 | LLVM_LIBC_FUNCTION(void, call_once, |
| 18 | (once_flag * flag, __call_once_func_t func)) { |
| 19 | callonce(flag: reinterpret_cast<CallOnceFlag *>(flag), |
| 20 | callback: reinterpret_cast<CallOnceCallback *>(func)); |
| 21 | } |
| 22 | |
| 23 | } // namespace LIBC_NAMESPACE |
| 24 |