24 lines · cpp
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-exception6//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 16namespace LIBC_NAMESPACE_DECL {17 18LLVM_LIBC_FUNCTION(int, pthread_once,19 (pthread_once_t * flag, __pthread_once_func_t func)) {20 return callonce(reinterpret_cast<CallOnceFlag *>(flag), func);21}22 23} // namespace LIBC_NAMESPACE_DECL24