1// Copyright 2017 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 dragonfly || freebsd || linux || netbsd || openbsd || solaris
6
7package os
8
9import "syscall"
10
11// Pipe returns a connected pair of Files; reads from r return bytes written to w.
12// It returns the files and an error, if any.
13func Pipe() (r *File, w *File, err error) {
14	var p [2]int
15
16	e := syscall.Pipe2(p[0:], syscall.O_CLOEXEC)
17	if e != nil {
18		return nil, nil, NewSyscallError("pipe2", e)
19	}
20
21	return newFile(p[0], "|0", kindPipe, false), newFile(p[1], "|1", kindPipe, false), nil
22}
23