pipe2_bsd.go

Documentation: os

     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  // +build dragonfly freebsd netbsd openbsd
     7  
     8  package os
     9  
    10  import "syscall"
    11  
    12  // Pipe returns a connected pair of Files; reads from r return bytes written to w.
    13  // It returns the files and an error, if any.
    14  func Pipe() (r *File, w *File, err error) {
    15  	var p [2]int
    16  
    17  	e := syscall.Pipe2(p[0:], syscall.O_CLOEXEC)
    18  	if e != nil {
    19  		return nil, nil, NewSyscallError("pipe", e)
    20  	}
    21  
    22  	return newFile(uintptr(p[0]), "|0", kindPipe), newFile(uintptr(p[1]), "|1", kindPipe), nil
    23  }
    24
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