Re: [lwip-devel] implementing Lwip on an cooperative RTOS

[address@hidden]

Cor v.d. Smissen wrote:
> Hi,
> I am preparing on integrating Lwip in our proprietary *cooperative* 
> RTOS using an Renesas M32C MCU.
> Semaphores, Mailboxes, Threads etc. are no problem. I've already 
> ported these.
>  
> Does anybody have some hints on how to deal with implementing 
> "sys_timeouts" in "sys_arch.c" ?
sys_timeouts() has to return a pointer that is unique for the currently 
running thread, that's all.
> Our threads do not have linked lists of timeouts that i can use...
> Do i need to insert task switch code (call the scheduler) in the Lwip 
> code manually in order to gain control again?
> How can i control the timing?
> As far as i can see now, i need to write a thread that takes care of 
> all the cyclic stuff.
> Am i right?
>  
> An example of sys_arch.c would be greatly appreciated.
The contrib module (accessible via CVS or in the downloads section) of 
the current version (1.3.0) has both windows and unix/linux example 
ports that you can look at for a start.

Simon