1 //===---------- Linux implementation of the epoll_create1 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/sys/epoll/epoll_create1.h" 10 11 #include "src/__support/OSUtil/syscall.h" // For internal syscall function. 12 #include "src/__support/common.h" 13 #include "src/__support/macros/config.h" 14 #include "src/errno/libc_errno.h" 15 #include <sys/syscall.h> // For syscall numbers. 16 17 namespace LIBC_NAMESPACE_DECL { 18 19 LLVM_LIBC_FUNCTION(int, epoll_create1, (int flags)) { 20 int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_epoll_create1, flags); 21 22 // A negative return value indicates an error with the magnitude of the 23 // value being the error code. 24 if (ret < 0) { 25 libc_errno = -ret; 26 return -1; 27 } 28 29 return ret; 30 } 31 32 } // namespace LIBC_NAMESPACE_DECL 33