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/
transport.go
108 lines (90 loc) · 1.98 KB
/
transport.go
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/**
* Copyright 2018 gd Author. All Rights Reserved.
* Author: Chuck1024
*/
package dogrpc
import (
"io"
"net"
"time"
)
const (
DefaultDialNetWork = "tcp"
)
var (
dialer = &net.Dialer{
Timeout: 10 * time.Second,
KeepAlive: 30 * time.Second,
}
)
type DialFunc func(addr string) (conn io.ReadWriteCloser, err error)
type Listener interface {
Init(addr string) error
Accept() (conn io.ReadWriteCloser, clientAddr string, err error)
Close() error
ListenAddr() net.Addr
}
func defaultDial(addr string) (conn io.ReadWriteCloser, err error) {
return dialer.Dial(DefaultDialNetWork, addr)
}
type defaultListener struct {
L net.Listener
}
func (ln *defaultListener) Init(addr string) (err error) {
ln.L, err = net.Listen(DefaultDialNetWork, addr)
return
}
func (ln *defaultListener) ListenAddr() net.Addr {
if ln.L != nil {
return ln.L.Addr()
}
return nil
}
func (ln *defaultListener) Accept() (conn io.ReadWriteCloser, clientAddr string, err error) {
c, err := ln.L.Accept()
if err != nil {
return nil, "", err
}
if err = setupKeepalive(c); err != nil {
c.Close()
return nil, "", err
}
return c, c.RemoteAddr().String(), nil
}
func (ln *defaultListener) Close() error {
return ln.L.Close()
}
func setupKeepalive(conn net.Conn) error {
tcpConn := conn.(*net.TCPConn)
if err := tcpConn.SetKeepAlive(true); err != nil {
return err
}
if err := tcpConn.SetKeepAlivePeriod(30 * time.Second); err != nil {
return err
}
return nil
}
type netListener struct {
F func(addr string) (net.Listener, error)
L net.Listener
}
func (ln *netListener) Init(addr string) (err error) {
ln.L, err = ln.F(addr)
return
}
func (ln *netListener) ListenAddr() net.Addr {
if ln.L != nil {
return ln.L.Addr()
}
return nil
}
func (ln *netListener) Accept() (conn io.ReadWriteCloser, clientAddr string, err error) {
c, err := ln.L.Accept()
if err != nil {
return nil, "", err
}
return c, c.RemoteAddr().String(), nil
}
func (ln *netListener) Close() error {
return ln.L.Close()
}