Re: [lwip-users] using differnet protocols parallel

[Çağlar AKYÜZ]

Kieran Mansley wrote:
> On Fri, 2007-02-23 at 00:11 +0100, Marcel M. wrote:
>   
> > Hi all,
> >
> > my name is Marcel any i’m from Germany. I would like to use lwIP with the
> > multithreading RTOS freertos (www.freertos.org). On my µC System i have to
> > implement at least two tcp socket connections, SNMP and Telnet(that means at
> > least four ports). Can i use lwIP to use this protocols "parallel"? I read,
> > that lwIP isn’t threadsafe, so is there any solution? Anyone implement some
> > different protocols which runing "parallel" with lwIP?
> > Thanks a lot!
> >     
>
> Yes, it should be fine.  You just have to protect lwIP from having
> multiple threads active in the stack at the same time using (for
> example) a mutex.  I'm not sure to what extent lwIP has been integrated
> into freertos - this may have been done for you already at the sockets
> layer, assuming that is the API you wish to use.
>
> Is there someone else here using freertos with lwIP who can provide more
> concrete information on its capabilities?
>
> Kieran
>   

LWiP is pretty well ported to FreeRTOS. I'm using LWiP+FreeRTOS 
combination very happly on a SAM7X.(altough you haven't
mentioned your arch, I think it should be okay for any arch which is 
supported by FreeRTOS)

As long as I can see from the code, in FreeRTOS there is only one task 
using the stack all the time. All other tasks communicate with this LWiP 
task. In conclusion,
LWiP+FreeRTOS is capable of doing what you need.

Regards
Caglar AKYUZ