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Source file src/net/file.go

  // Copyright 2015 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.
  
  package net
  
  import "os"
  
  // BUG(mikio): On NaCl and Windows, the FileConn, FileListener and
  // FilePacketConn functions are not implemented.
  
  type fileAddr string
  
  func (fileAddr) Network() string  { return "file+net" }
  func (f fileAddr) String() string { return string(f) }
  
  // FileConn returns a copy of the network connection corresponding to
  // the open file f.
  // It is the caller's responsibility to close f when finished.
  // Closing c does not affect f, and closing f does not affect c.
  func FileConn(f *os.File) (c Conn, err error) {
  	c, err = fileConn(f)
  	if err != nil {
  		err = &OpError{Op: "file", Net: "file+net", Source: nil, Addr: fileAddr(f.Name()), Err: err}
  	}
  	return
  }
  
  // FileListener returns a copy of the network listener corresponding
  // to the open file f.
  // It is the caller's responsibility to close ln when finished.
  // Closing ln does not affect f, and closing f does not affect ln.
  func FileListener(f *os.File) (ln Listener, err error) {
  	ln, err = fileListener(f)
  	if err != nil {
  		err = &OpError{Op: "file", Net: "file+net", Source: nil, Addr: fileAddr(f.Name()), Err: err}
  	}
  	return
  }
  
  // FilePacketConn returns a copy of the packet network connection
  // corresponding to the open file f.
  // It is the caller's responsibility to close f when finished.
  // Closing c does not affect f, and closing f does not affect c.
  func FilePacketConn(f *os.File) (c PacketConn, err error) {
  	c, err = filePacketConn(f)
  	if err != nil {
  		err = &OpError{Op: "file", Net: "file+net", Source: nil, Addr: fileAddr(f.Name()), Err: err}
  	}
  	return
  }
  

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