This is the mail archive of the
ecos-discuss@sources.redhat.com
mailing list for the eCos project.
Efficient way to wake up a task...
- From: "Guilly A" <guilly_work at hotmail dot com>
- To: ecos-discuss at sources dot redhat dot com
- Date: Wed, 22 Jun 2005 16:29:42 +0000
- Subject: [ECOS] Efficient way to wake up a task...
- Bcc:
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