file.go

Documentation: net

		 1  // Copyright 2015 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  package net
		 6  
		 7  import "os"
		 8  
		 9  // BUG(mikio): On JS and Windows, the FileConn, FileListener and
		10  // FilePacketConn functions are not implemented.
		11  
		12  type fileAddr string
		13  
		14  func (fileAddr) Network() string	{ return "file+net" }
		15  func (f fileAddr) String() string { return string(f) }
		16  
		17  // FileConn returns a copy of the network connection corresponding to
		18  // the open file f.
		19  // It is the caller's responsibility to close f when finished.
		20  // Closing c does not affect f, and closing f does not affect c.
		21  func FileConn(f *os.File) (c Conn, err error) {
		22  	c, err = fileConn(f)
		23  	if err != nil {
		24  		err = &OpError{Op: "file", Net: "file+net", Source: nil, Addr: fileAddr(f.Name()), Err: err}
		25  	}
		26  	return
		27  }
		28  
		29  // FileListener returns a copy of the network listener corresponding
		30  // to the open file f.
		31  // It is the caller's responsibility to close ln when finished.
		32  // Closing ln does not affect f, and closing f does not affect ln.
		33  func FileListener(f *os.File) (ln Listener, err error) {
		34  	ln, err = fileListener(f)
		35  	if err != nil {
		36  		err = &OpError{Op: "file", Net: "file+net", Source: nil, Addr: fileAddr(f.Name()), Err: err}
		37  	}
		38  	return
		39  }
		40  
		41  // FilePacketConn returns a copy of the packet network connection
		42  // corresponding to the open file f.
		43  // It is the caller's responsibility to close f when finished.
		44  // Closing c does not affect f, and closing f does not affect c.
		45  func FilePacketConn(f *os.File) (c PacketConn, err error) {
		46  	c, err = filePacketConn(f)
		47  	if err != nil {
		48  		err = &OpError{Op: "file", Net: "file+net", Source: nil, Addr: fileAddr(f.Name()), Err: err}
		49  	}
		50  	return
		51  }
		52
View as plain text