libgo/go/os/pipe2_bsd.go

   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 || netbsd || openbsd
   6
   7 package os
   8
   9 import "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.
  13 func 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("pipe", e)
  19         }
  20
  21         return newFile(uintptr(p[0]), "|0", kindPipe), newFile(uintptr(p[1]), "|1", kindPipe), nil
  22 }