1 | //===-- Linux implementation of the pthread_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 "pthread_once.h" |
10 | #include "src/__support/common.h" |
11 | #include "src/__support/macros/config.h" |
12 | #include "src/__support/threads/callonce.h" |
13 | |
14 | #include <pthread.h> // For pthread_once_t and __pthread_once_func_t definitions. |
15 | |
16 | namespace LIBC_NAMESPACE_DECL { |
17 | |
18 | LLVM_LIBC_FUNCTION(int, pthread_once, |
19 | (pthread_once_t * flag, __pthread_once_func_t func)) { |
20 | return callonce(reinterpret_cast<CallOnceFlag *>(flag), |
21 | reinterpret_cast<CallOnceCallback *>(func)); |
22 | } |
23 | |
24 | } // namespace LIBC_NAMESPACE_DECL |
25 |