31 lines · cpp
1//===-- Linux implementation of setsid-------------------------------------===//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/unistd/setsid.h"10 11#include "hdr/types/pid_t.h"12#include "src/__support/OSUtil/syscall.h" // For internal syscall function.13#include "src/__support/common.h"14#include "src/__support/libc_errno.h"15#include "src/__support/macros/config.h"16 17#include <sys/syscall.h> // For syscall numbers.18 19namespace LIBC_NAMESPACE_DECL {20 21LLVM_LIBC_FUNCTION(pid_t, setsid, ()) {22 pid_t ret = LIBC_NAMESPACE::syscall_impl<pid_t>(SYS_setsid);23 if (ret < 0) {24 libc_errno = static_cast<int>(-ret);25 return -1;26 }27 return ret;28}29 30} // namespace LIBC_NAMESPACE_DECL31