Editando: fd_posix.go
// Copyright 2020 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. //go:build unix || windows package net import ( "internal/poll" "runtime" "syscall" "time" ) // Network file descriptor. type netFD struct { pfd poll.FD // immutable until Close family int sotype int isConnected bool // handshake completed or use of association with peer net string laddr Addr raddr Addr } func (fd *netFD) setAddr(laddr, raddr Addr) { fd.laddr = laddr fd.raddr = raddr runtime.SetFinalizer(fd, (*netFD).Close) } func (fd *netFD) Close() error { runtime.SetFinalizer(fd, nil) return fd.pfd.Close() } func (fd *netFD) shutdown(how int) error { err := fd.pfd.Shutdown(how) runtime.KeepAlive(fd) return wrapSyscallError("shutdown", err) } func (fd *netFD) closeRead() error { return fd.shutdown(syscall.SHUT_RD) } func (fd *netFD) closeWrite() error { return fd.shutdown(syscall.SHUT_WR) } func (fd *netFD) Read(p []byte) (n int, err error) { n, err = fd.pfd.Read(p) runtime.KeepAlive(fd) return n, wrapSyscallError(readSyscallName, err) } func (fd *netFD) readFrom(p []byte) (n int, sa syscall.Sockaddr, err error) { n, sa, err = fd.pfd.ReadFrom(p) runtime.KeepAlive(fd) return n, sa, wrapSyscallError(readFromSyscallName, err) } func (fd *netFD) readFromInet4(p []byte, from *syscall.SockaddrInet4) (n int, err error) { n, err = fd.pfd.ReadFromInet4(p, from) runtime.KeepAlive(fd) return n, wrapSyscallError(readFromSyscallName, err) } func (fd *netFD) readFromInet6(p []byte, from *syscall.SockaddrInet6) (n int, err error) { n, err = fd.pfd.ReadFromInet6(p, from) runtime.KeepAlive(fd) return n, wrapSyscallError(readFromSyscallName, err) } func (fd *netFD) readMsg(p []byte, oob []byte, flags int) (n, oobn, retflags int, sa syscall.Sockaddr, err error) { n, oobn, retflags, sa, err = fd.pfd.ReadMsg(p, oob, flags) runtime.KeepAlive(fd) return n, oobn, retflags, sa, wrapSyscallError(readMsgSyscallName, err) } func (fd *netFD) readMsgInet4(p []byte, oob []byte, flags int, sa *syscall.SockaddrInet4) (n, oobn, retflags int, err error) { n, oobn, retflags, err = fd.pfd.ReadMsgInet4(p, oob, flags, sa) runtime.KeepAlive(fd) return n, oobn, retflags, wrapSyscallError(readMsgSyscallName, err) } func (fd *netFD) readMsgInet6(p []byte, oob []byte, flags int, sa *syscall.SockaddrInet6) (n, oobn, retflags int, err error) { n, oobn, retflags, err = fd.pfd.ReadMsgInet6(p, oob, flags, sa) runtime.KeepAlive(fd) return n, oobn, retflags, wrapSyscallError(readMsgSyscallName, err) } func (fd *netFD) Write(p []byte) (nn int, err error) { nn, err = fd.pfd.Write(p) runtime.KeepAlive(fd) return nn, wrapSyscallError(writeSyscallName, err) } func (fd *netFD) writeTo(p []byte, sa syscall.Sockaddr) (n int, err error) { n, err = fd.pfd.WriteTo(p, sa) runtime.KeepAlive(fd) return n, wrapSyscallError(writeToSyscallName, err) } func (fd *netFD) writeToInet4(p []byte, sa *syscall.SockaddrInet4) (n int, err error) { n, err = fd.pfd.WriteToInet4(p, sa) runtime.KeepAlive(fd) return n, wrapSyscallError(writeToSyscallName, err) } func (fd *netFD) writeToInet6(p []byte, sa *syscall.SockaddrInet6) (n int, err error) { n, err = fd.pfd.WriteToInet6(p, sa) runtime.KeepAlive(fd) return n, wrapSyscallError(writeToSyscallName, err) } func (fd *netFD) writeMsg(p []byte, oob []byte, sa syscall.Sockaddr) (n int, oobn int, err error) { n, oobn, err = fd.pfd.WriteMsg(p, oob, sa) runtime.KeepAlive(fd) return n, oobn, wrapSyscallError(writeMsgSyscallName, err) } func (fd *netFD) writeMsgInet4(p []byte, oob []byte, sa *syscall.SockaddrInet4) (n int, oobn int, err error) { n, oobn, err = fd.pfd.WriteMsgInet4(p, oob, sa) runtime.KeepAlive(fd) return n, oobn, wrapSyscallError(writeMsgSyscallName, err) } func (fd *netFD) writeMsgInet6(p []byte, oob []byte, sa *syscall.SockaddrInet6) (n int, oobn int, err error) { n, oobn, err = fd.pfd.WriteMsgInet6(p, oob, sa) runtime.KeepAlive(fd) return n, oobn, wrapSyscallError(writeMsgSyscallName, err) } func (fd *netFD) SetDeadline(t time.Time) error { return fd.pfd.SetDeadline(t) } func (fd *netFD) SetReadDeadline(t time.Time) error { return fd.pfd.SetReadDeadline(t) } func (fd *netFD) SetWriteDeadline(t time.Time) error { return fd.pfd.SetWriteDeadline(t) }
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Kerym Chaeceran