1 //===-- Implementation of sched_setaffinity -------------------------------===// 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/sched/sched_setaffinity.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 16 #include <sched.h> 17 #include <sys/syscall.h> // For syscall numbers. 18 19 namespace LIBC_NAMESPACE_DECL { 20 21 LLVM_LIBC_FUNCTION(int, sched_setaffinity, 22 (pid_t tid, size_t cpuset_size, const cpu_set_t *mask)) { 23 int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_sched_setaffinity, tid, 24 cpuset_size, mask); 25 if (ret < 0) { 26 libc_errno = -ret; 27 return -1; 28 } 29 return 0; 30 } 31 32 } // namespace LIBC_NAMESPACE_DECL 33