1 //===-- Types related to the callonce 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 #ifndef LLVM_LIBC_SRC___SUPPORT_THREADS_CALLONCE_H 10 #define LLVM_LIBC_SRC___SUPPORT_THREADS_CALLONCE_H 11 12 namespace LIBC_NAMESPACE { 13 14 struct CallOnceFlag; 15 using CallOnceCallback = void(void); 16 17 int callonce(CallOnceFlag *flag, CallOnceCallback *callback); 18 19 } // namespace LIBC_NAMESPACE 20 21 #endif // LLVM_LIBC_SRC___SUPPORT_THREADS_CALLONCE_H 22