Re: [lwip-users] Kernel Implementation into a Blackfin Processor

[Leon Woestenberg]

Fabio,

Paul C wrote:

> If you read through Adam's examples, he explains how
> to write a single threaded application by using 
> defines and function stubs for the semaphores and 
> mailboxes. If you have to change the LWIP code then
> there is a good chance that you are doing something
> wrong.
> ...
> Paul 
>
>  
Fabio did not suggest to change the lwIP code, he asked if he could throw
away the mailboxes and semaphores for a single-threaded application.

In fact, you can do this by defining null-functions for them in the 
sysarch.h
adaptation.

Your application then simply uses the raw callback API.

An example for an empty sysarch is in the CVS contrib module ports/c16x.

Regards,

Leon.

> On Wed, 5 Jan 2005 18:22:57 -0200, "Fabio Yamada"
> <address@hidden> said:
>  
>
> > Happy new year for everybody! : )
> >
> >    I would like to implement the LwIP into a DSP from Blackfin
> > family. I don't want to use the thread aproach, though. I read in
> > Adam's home page (http://www.sics.se/~adam/lwip/os.html) that for a
> > single threaded core I don't need to implement the semaphores and
> > mailboxes.
> >
> >    My question is: Can I just erase all the mailboxes and semaphores
> > from the stack? Will it keep the consistence?
> >