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
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