[ECOS] Efficient way to wake up a task...
Guilly A
guilly_work@hotmail.com
Wed Jun 22 16:29:00 GMT 2005
Hi
I need to wake up a task after an interruption handling.
I am wondering which is the more efficient way to do that :
1- suspend the task and resume it in the ISR
2- make the task wait forever for a flag and set the flag in the ISR
3- use mailboxes.
On pSos, I used an event sending to wake up my task. I heard it was the
fastest way and lowest memory cost do do it, compared to mailbox. But I had
no evidence about it, I believed it naively.
I don't know how is it for eCos.
Thank you for your advices.
Rq : the task to be waken has the highest priority of my system, and in the
ISR I just copy a 256bytes long buffer to a static buffer and send the
wake-up signal...
_________________________________________________________________
Ne cherchez plus, trouvez ! Avec le nouveau MSN Search.
http://search.msn.fr/
--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
More information about the Ecos-discuss
mailing list