Re: [lwip-users] RE : tcp_write() problem from outside callbacks functions

[Yann Suisini]

Hello ,

I had just get the tcp_pcb  state just before the tcp_write in my main loop
and in the callback function.
In the main : state=1 (LISTEN)
in the callback : state=4 (ESTABLISHED) 

It seems more and more strange to me ...





Frédéric BERNON wrote:
> 
> It seems that only possible ERR_CONN cause is you call tcp_write with a
> connection in a invalid state. Can you tell us what is the "tcpweb->state"
> value when you call tcp_write ? 
> 
> ====================================
> 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 Yann Suisini
> Envoyé : jeudi 5 avril 2007 14:51
> À : address@hidden
> Objet : Re: [lwip-users] tcp_write() problem from outside callbacks
> functions
> 
> 
> 
> In fact I didn't put the connection part in the previous mail but the
> connection is ok :) (the tcp_new/tcp_bind:tcp_listen/tcp_accept sequence).
> Once the connection is established the tcp_write data frome the callbacks
> are sent well . But the tcp_write from the main loop that you can see in
> the source always return the ERR_CON .  I read  2 or 3 times the
> rawapi.txt . But I probably missed something :(
> 
> 
> 
> 
> Kieran Mansley wrote:
>> 
>> On Thu, 2007-04-05 at 09:57 +0000, Yann Suisini wrote:
>>> At the first tcp_write , it's right that I'm not connected soe 
>>> ERR_CON is ok . But even when I'm connected after, the ERR_CON is 
>>> always returned . I really don't know what I'm doing wrong.
>> 
>> When do you establish the connection? I can only see calls to 
>> tcp_write (), not to 
>> tcp_new()/tcp_bind()/tcp_listen()/tcp_accept()/tcp_connect()
>> - at least some of these are required.  I suggest having a read of
>> lwip/doc/rawapi.txt
>> 
>> Kieran
>> 
>> 
>> 
>> _______________________________________________
>> lwip-users mailing list
>> address@hidden 
>> http://lists.nongnu.org/mailman/listinfo/lwip-users
>> 
>> 
> 
> -- 
> View this message in context:
> http://www.nabble.com/tcp_write%28%29-problem-from-outside-callbacks-functions-tf3530647.html#a9855171
> Sent from the lwip-users mailing list archive at Nabble.com.
> 
> 
> 
> _______________________________________________
> lwip-users mailing list
> address@hidden http://lists.nongnu.org/mailman/listinfo/lwip-users
> 
> BEGIN:VCARD
> VERSION:2.1
> N:BERNON;Frédéric;;M.
> FN:Frédéric BERNON
> ORG:HYMATOM SA;Recherche et Développement
> TITLE:Chef de projet informatique
> TEL;WORK;VOICE:04-67-87-61-10
> TEL;WORK;FAX:04-67-70-85-44
> ADR;WORK;ENCODING=QUOTED-PRINTABLE:;23;Zone Industrielle=0D=0A175 rue de
> Massacan;VENDARGUES;;34740;FRANCE;
> LABEL;WORK;ENCODING=QUOTED-PRINTABLE:23=0D=0AZone Industrielle=0D=0A175
> rue de Massacan=0D=0AVENDARGUES 34740=0D=
> =0AFrance
> URL;WORK:http://www.hymatom.fr
> ROLE:Chef de projet informatique
> EMAIL;PREF;INTERNET:address@hidden
> REV:20020404T083210Z
> END:VCARD
> 
> _______________________________________________
> lwip-users mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/lwip-users
> 

-- 
View this message in context: 
http://www.nabble.com/tcp_write%28%29-problem-from-outside-callbacks-functions-tf3530647.html#a9856072
Sent from the lwip-users mailing list archive at Nabble.com.