AW: [En-Nut-Discussion] TCP Socket closed after with third TCP Request

[Joachim Skale]

i didn't want to use a workaround now.
i want to know why the socket is closed.

after the second request i can wait until the End of Days, when i call the Socket Info the Socket will be shown as ESTABLISHED.

if my source will help anyone, please call.


Joachim


-----Ursprüngliche Nachricht-----
Von: en-nut-discussion-bounces at egnite.de
[mailto:en-nut-discussion-bounces at egnite.de]Im Auftrag von Lokanath
Penukonda
Gesendet: Montag, 19. Dezember 2005 10:11
An: 'Ethernut User Chat (English)'
Betreff: RE: [En-Nut-Discussion] TCP Socket closed after with third TCP
Request


Check is any processes which have dependecy to that server...i guess u can
use shutdown() in the client with option 2..

-----Original Message-----
From: en-nut-discussion-bounces at egnite.de
[mailto:en-nut-discussion-bounces at egnite.de]On Behalf Of Joachim Skale
Sent: Monday, December 19, 2005 2:36 PM
To: En-Nut Discussion
Subject: [En-Nut-Discussion] TCP Socket closed after with third TCP
Request



hi all,

i've got the following problem.
I use the Ethernut Board as TCP Client which validates Cards via TCP Request
on an server.
Within the Third Request the Socket State changed from ESTABLISHED to
CLOSED.

When i debug into the Sources of the TCP, i saw that

/*
     * Wait until any data arrived, a timeout occurs
     * or the connection terminates.
     */
    while (sock->so_rx_cnt - sock->so_rd_cnt == 0) {
        if (sock->so_state != TCPS_ESTABLISHED) {
            sock->so_last_error = ENOTCONN;
            return -1;
        }
        if (NutEventWait(&sock->so_rx_tq, sock->so_read_to))
            return 0;
    }

in this code segment the socket state is changed to closed.

My Server didn't close the Connection.

Any hints??


Joachim
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