Re: [ECOS] BSD socket read() calls blocking indefinately

[Andrea Acquaviva <aacquaviva at deis dot unibo dot it>]

psheer@icon.co.za wrote:

> > > However TCP read() and accept() operations block
> > > indefinately even though the Ethernet driver seems
> > > to be recieving the packet, and TCP write() calls
> > > work perfectly.
> >
> > Do you have the endianness of the port number correct?
> >
>
> My test program connects to port 80 of a Linux machine,
> sends a GET request, and then reads the reply. The GET
> request gets there, the reply is sent, the reply is
> visible with tcpdump. The reply is read by the driver
> (I verified this by inserting a scan loop for
> "H", "T", "T", "P" at the lowest level of the driver.)
>
> However where the packet goes thereafter I have no clue
> and it seems quite difficult to go debugging the TCP
> stack.
>
> My read() waits forever.
>
> Can I ask where do a track the packet from here on?
>
> If I can get this working, the port of eCos to this new
> board would be almost complete.
>
> -paul
>
> ---------------------------------------------
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I have a similar problem.
I written a client-server application and I noticed that somtimes during
the transfer the read() blocks the program by waiting forever.

Andrea.


--
Ing. Andrea Acquaviva
D.E.I.S. - Universita' di Bologna
V.le Risorgimento, 2    40136 BOLOGNA (ITALY)
Tel: (+39) 051 20 93787 Fax: (+39) 051 2093786