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go/src/net/file.go
Mikio Hara 885111365b net: fix inconsistent error values on File
This change fixes inconsistent error values on
File{Conn,Listener,PacketConn} and File method of Conn, Listener.

Updates #4856.

Change-Id: I3197b9277bef0e034427e3a44fa77523acaa2520
Reviewed-on: https://go-review.googlesource.com/9101
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-04-21 03:37:41 +00:00

49 lines
1.5 KiB
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"
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", 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", 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", Addr: fileAddr(f.Name()), Err: err}
}
return
}