文件操作 - file.go
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文件: /usr/share/go-1.23/src/net/file.go
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// 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 JS 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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