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 -----
From: "Marko Panger" <[EMAIL PROTECTED]>
To: "Mailing list for lwIP users" <[email protected]>
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 : [EMAIL PROTECTED]
>> Web Site : http://www.hymatom.fr
>> ====================================
>> P Avant d'imprimer, penser à l'environnement
>>
>>
>>
>> -----Message d'origine-----
>> De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 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;
>> }
>>
>> }
>>
>>
>>
>>
>> _______________________________________________
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>> [email protected] http://lists.nongnu.org/mailman/listinfo/lwip-users
>>
>> _______________________________________________
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>> [email protected]
>> http://lists.nongnu.org/mailman/listinfo/lwip-users
>
>
>
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