33 lines
682 B
Go
33 lines
682 B
Go
package app
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
"time"
|
|
)
|
|
|
|
func newListener(cfg *ServerConfig) (net.Listener, error) {
|
|
addr := fmt.Sprintf("%s:%d", cfg.Host, cfg.Port)
|
|
ln, err := net.Listen("tcp", addr)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
// set actual port on config object (in case original port was 0)
|
|
cfg.Port = ln.Addr().(*net.TCPAddr).Port
|
|
return tcpListener{ln.(*net.TCPListener)}, nil
|
|
}
|
|
|
|
// custom TCP listener with keep-alive timeout
|
|
type tcpListener struct {
|
|
*net.TCPListener
|
|
}
|
|
|
|
func (ln tcpListener) Accept() (net.Conn, error) {
|
|
tc, err := ln.AcceptTCP()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
tc.SetKeepAlive(true)
|
|
tc.SetKeepAlivePeriod(3 * time.Minute)
|
|
return tc, nil
|
|
}
|