AW: [ECOS] Blocking restricted in DSRs

[Neundorf, Alexander]

> Things like waiting for a semaphore. Blocking is something you do at
> thread level. The thread "blocks" (or goes to sleep) until another
> thread or interrupt wakes it up again. Basically, this waking 
> up is done
> by the scheduler, which explains why you should not block in a DSR,
> which is called _before_ the scheduler. 
> 
> Hope this makes it a little bit clearer,
> 
> Bob

Ok, the docu says sending signals to condition variables is ok from a DSR. But AFAIK this has always be done together with locking the associated mutex first... from the DSR then. But the docu also says using cyg_mutex_lock() should be used only from thread context, not from DSR. So, what's the right way then ?

Alex

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