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-rw-r--r--src/net/fd_posix.go147
1 files changed, 147 insertions, 0 deletions
diff --git a/src/net/fd_posix.go b/src/net/fd_posix.go
new file mode 100644
index 0000000..ffb9bcf
--- /dev/null
+++ b/src/net/fd_posix.go
@@ -0,0 +1,147 @@
+// 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)
+}