RE: [lwip-users] BasicWeb.c behavior

[nidhi]

Dear sir,

I am using LWIP TCP stack for a small client application.I am not getting
clarity on Call back API's.I am using LM3S6965 evaluation board.tcp
connect function is returning OK even if no LAN cable is 
connected.Network interface is getting UP but application is unable to
connect toa remote host.

Kindly help.

Regards

Nidhi
Applied Electro Magnetics
Noida






> I think the issue they're expressing is that the PCB memory pool's
> associated stats.err member gets incremented in this case even though the
> fail/kill/retry sequence ends up being successful?
>
> -----Original Message-----
> From: address@hidden
> [mailto:address@hidden On Behalf
> Of Jonathan Larmour
> Sent: Friday, February 08, 2008 3:03 PM
> To: Mailing list for lwIP users
> Subject: Re: [lwip-users] BasicWeb.c behavior
>
> Bill Auerbach wrote:
>>
>> In tcp_alloc, if memp_malloc returns NULL then tcp_kill_timewait is
>> used to kill an old PCB.  I would think the error should be reversed
>> when the next memp_malloc succeeds, or, we need a memp_malloc_try
>> which doesn't count the error on a fail, but allocates one if it can.
>
> I'm not sure what you mean here. The current code looks ok to me? It
> retries the memp_malloc straight after killing off a socket in timewait.
>
> Jifl
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