1// Copyright 2023 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5//go:build unix
6
7package runtime
8
9const (
10	// These values are the same on all known Unix systems.
11	// If we find a discrepancy some day, we can split them out.
12	_F_SETFD    = 2
13	_FD_CLOEXEC = 1
14)
15
16//go:nosplit
17func closeonexec(fd int32) {
18	fcntl(fd, _F_SETFD, _FD_CLOEXEC)
19}
20