How can I let a conn alive, I have this code, the TCP server work but it
does not keep alive
func main() {
// Listen for incoming connections.
l, err := net.Listen(CONN_TYPE, CONN_HOST+":"+CONN_PORT)
if err != nil {
fmt.Println("Error listening:", err.Error())
os.Exit(1)
}
// Close the listener when the application closes.
defer l.Close()
fmt.Println("Listening on " + CONN_HOST + ":" + CONN_PORT)
for {
// Listen for an incoming connection.
conn, err := l.Accept()
if err != nil {
fmt.Println("Error accepting: ", err.Error())
os.Exit(1)
}
// Handle connections in a new goroutine.
go handleRequest(conn)
}
}
// Handles incoming requests.
func handleRequest(conn net.Conn) {
conn.(*net.TCPConn).SetKeepAlive(true)
buf := make([]byte, 1024)
// Read the incoming connection into the buffer.
reqLen, err := conn.Read(buf)
buf = buf[:reqLen]
if err != nil {
fmt.Println("Error reading:", err.Error())
}
var packageData string = ""
for i := 0; i < len(buf)-1; i++ {
packageData += fmt.Sprintf("%02x", buf[i])
}
//...
// Close the connection when you're done with it.
conn.Close()
}
On Tuesday, July 26, 2016 at 12:21:51 PM UTC-5, Matt Harden wrote:
>
> This is because your conn variable is probably of the type net.Conn (an
> interface) rather than *net.TCPConn, so the compiler doesn't know that the
> SetKeepAlive method is available. If you use a type assertion as djadala
> suggested: conn.(*net.TCPConn).SetKeepAlive then you are telling the
> compiler that the value in the conn variable is actually a TCP connection
> and so the SetKeepAlive method becomes available. This will panic if the
> conn variable does not actually contain a *net.TCPConn.
>
> On Tue, Jul 26, 2016 at 12:09 AM <dja...@gmail.com <javascript:>> wrote:
>
>> try conn.(*TCPConn <https://golang.org/pkg/net/#TCPConn>).SetKeepAlive
>>
>> On Tuesday, July 26, 2016 at 10:04:41 AM UTC+3, EdgarAlejandro Vintimilla
>> wrote:
>>>
>>>
>>>
>>>
>>> when I use the conn.SetKeepAlive i get this error: reference to
>>> undefined field or method ‘SetKeepAlive’
>>>
>>> https://golang.org/pkg/net/#TCPConn.SetKeepAlive
>>>
>>> why?
>>>
>>> but If I use conn.SetReadDeadline it works ok
>>>
>>> https://golang.org/pkg/net/#IPConn.SetReadDeadline
>>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "golang-nuts" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to golang-nuts...@googlegroups.com <javascript:>.
>> For more options, visit https://groups.google.com/d/optout.
>>
>
--
You received this message because you are subscribed to the Google Groups
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to golang-nuts+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
