24 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/threads/call_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 <threads.h> // For once_flag and __call_once_func_t definitions.15 16namespace LIBC_NAMESPACE_DECL {17 18LLVM_LIBC_FUNCTION(void, call_once,19 (once_flag * flag, __call_once_func_t func)) {20 callonce(reinterpret_cast<CallOnceFlag *>(flag), func);21}22 23} // namespace LIBC_NAMESPACE_DECL24