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Re: RE : [lwip-users] netconn_connct returning always ERR_OK
From: |
Frédéric BERNON |
Subject: |
Re: RE : [lwip-users] netconn_connct returning always ERR_OK |
Date: |
Tue, 15 Jan 2008 23:16:57 +0100 |
I have test with this code (after tcpip_init_done
is called):
static void
connect_thread(void *arg)
{ /* Connect to server */
struct ip_addr server_ip;
struct netconn* conn;
IP4_ADDR(&server_ip,
192,168,0,1);
conn =
netconn_new_with_proto_and_callback(NETCONN_TCP, 6, NULL);
while(netconn_connect(conn, &server_ip,
4576) != ERR_OK)
{ printf("error
connect\n");
sys_msleep(100);
}
printf("retry
connected?\n");
sys_msleep(-1);
}
When I execute this code, after some seconds, I got
lot of "error connect", showing the netconn_connect doesn't return ERR_OK. Note
I'm not sure it is supported to retry to call netconn_connect once you got an
error. Perhaps you could test your code with last CVS HEAD ?
----- Original Message -----
Sent: Tuesday, January 15, 2008 2:27
PM
Subject: Re: RE : [lwip-users] netconn_connct
returning always ERR_OK
> Hi Frédéric,
>
> I'm sorry but I really don't know how
to determine the version. Is it
> from the CVS head. I'm attaching a
snippet from the changelog file:
>
> HISTORY
>
> (CVS
HEAD)
>
> * [Enter new changes just after this line - do not
remove this line]
>
> ++ New features:
>
>
2007-09-15 Frédéric Bernon
> * udp.h, udp.c, sockets.c: Changes for
"#20503 IGMP Improvement". Add
>
IP_MULTICAST_IF
> option in socket API, and a new field
"multicast_ip" in "struct
> udp_pcb" (for
>
netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt
>
processing for
> IP_MULTICAST_TTL and
IP_MULTICAST_IF.
>
> marko
>
> Frédéric BERNON
wrote:
>> Which lwIP release do you use ?
>>
>>
>>
>>
====================================
>> Frédéric BERNON
>>
HYMATOM SA
>> Chef de projet informatique
>> Microsoft
Certified Professional
>> Tél. : +33 (0)4-67-87-61-10
>>
Fax. : +33 (0)4-67-70-85-44
>> Email : address@hidden
>> Web Site : http://www.hymatom.fr
>>
====================================
>> P Avant d'imprimer, penser à
l'environnement
>>
>>
>>
>>
-----Message d'origine-----
>> De : address@hidden
[mailto:address@hidden De la part de
Marko Panger
>> Envoyé : mardi 15 janvier 2008 13:12
>> À :
Mailing list for lwIP users
>> Objet : [lwip-users] netconn_connct
returning always ERR_OK
>>
>>
>> Hi
all,
>>
>> I'm writing a client app. which connects to a
remote server. I'm running
>> lwip under an rtos
with
>>
>> #define NO_SYS 0
>>
>> I'm using
the netconn sequential api and there is something about the
>>
netconn_connect() call which is confusing me.
>> If I try to connect to
a non-existing server (nobody is listening on
>> that ip on that port)
the call still returns with ERR_OK.
>>
>> Shouldn't be some
other error code ?
>>
>> In general how do I know that the
other side has received the data send
>> by the client with
netconn_write() ?
>>
>> Please find attached the code snipped
below for reference.
>>
>> Thanks in advance for your help and
comments,
>> marko
>>
>>
IP4_ADDR(&local_ip, 192, 168, 3, 2);
>>
IP4_ADDR(&net_mask, 255, 255, 255, 0);
>>
IP4_ADDR(&gateway, 192, 168, 3, 1);
>>
IP4_ADDR(&server_ip, 192, 168, 3, 1);
>>
>> netif_add(&slip_if, &local_ip,
&net_mask, &gateway, NULL,
>> slipif_init,
tcpip_input);
>>
netif_set_default(&slip_if);
>>
netif_set_up(&slip_if);
>>
>>
>> /* Connect
to server */
>> conn =
netconn_new_with_proto_and_callback(NETCONN_TCP, 6,
>>
server_conn_clb);
>>
>> while(netconn_connect(conn, &server_ip,
RVA_PORT) != ERR_OK)
>>
TSK_Sleep(100);
>>
>> while(1)
{
>> while(!(buf =
netconn_recv(conn)))
>>
TSK_Sleep(10);
>>
>> netbuf_data(buf,
(void*)&p, &len);
>>
>> payload_len =
*p++;
>> /* Ping
*/
>> switch(*p)
{
>>
case
6:
>>
netconn_write(conn, p-1, len,
true);
>>
netbuf_delete(buf);
>>
break;
>>
}
>>
>>
}
>>
>>
>>
>>
>>
_______________________________________________
>> lwip-users mailing
list
>> address@hidden http://lists.nongnu.org/mailman/listinfo/lwip-users
>>
>>
_______________________________________________
>> lwip-users mailing
list
>> address@hidden
>>
http://lists.nongnu.org/mailman/listinfo/lwip-users
>
>
>
>
_______________________________________________
> lwip-users mailing
list
> address@hidden
>
http://lists.nongnu.org/mailman/listinfo/lwip-users
>
- RE : [lwip-users] netconn_connct returning always ERR_OK, Frédéric BERNON, 2008/01/15
- RE: RE : [lwip-users] netconn_connct returning always ERR_OK, Marko Panger, 2008/01/21
- Re: RE : [lwip-users] netconn_connct returning always ERR_OK, Jonathan Larmour, 2008/01/21
- Re: RE : [lwip-users] netconn_connct returning always ERR_OK, Marko Panger, 2008/01/21
- RE : [lwip-users] netconn_connct returning always ERR_OK, address@hidden, 2008/01/21
- Re: RE : [lwip-users] netconn_connct returning always ERR_OK, Marko Panger, 2008/01/21
- RE : [lwip-users] netconn_connct returning always ERR_OK, Goldschmidt Simon, 2008/01/22
- Re: RE : [lwip-users] netconn_connct returning always ERR_OK, Marko Panger, 2008/01/22
- Re: RE : [lwip-users] netconn_connct returning always ERR_OK, Marko Panger, 2008/01/22