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Source file src/os/pipe_bsd.go

Documentation: os

  // Copyright 2009 The Go Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style
  // license that can be found in the LICENSE file.
  
  // +build darwin dragonfly nacl netbsd openbsd solaris
  
  package os
  
  import "syscall"
  
  // Pipe returns a connected pair of Files; reads from r return bytes written to w.
  // It returns the files and an error, if any.
  func Pipe() (r *File, w *File, err error) {
  	var p [2]int
  
  	// See ../syscall/exec.go for description of lock.
  	syscall.ForkLock.RLock()
  	e := syscall.Pipe(p[0:])
  	if e != nil {
  		syscall.ForkLock.RUnlock()
  		return nil, nil, NewSyscallError("pipe", e)
  	}
  	syscall.CloseOnExec(p[0])
  	syscall.CloseOnExec(p[1])
  	syscall.ForkLock.RUnlock()
  
  	return newFile(uintptr(p[0]), "|0", true), newFile(uintptr(p[1]), "|1", true), nil
  }
  

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