35 lines · cpp
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-exception6//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/libc_errno.h"14#include "src/__support/macros/config.h"15 16#include "hdr/types/cpu_set_t.h"17#include "hdr/types/pid_t.h"18#include "hdr/types/size_t.h"19#include <sys/syscall.h> // For syscall numbers.20 21namespace LIBC_NAMESPACE_DECL {22 23LLVM_LIBC_FUNCTION(int, sched_setaffinity,24 (pid_t tid, size_t cpuset_size, const cpu_set_t *mask)) {25 int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_sched_setaffinity, tid,26 cpuset_size, mask);27 if (ret < 0) {28 libc_errno = -ret;29 return -1;30 }31 return 0;32}33 34} // namespace LIBC_NAMESPACE_DECL35