Hi, Is it possilbe to create more than one sleepon locks on one thread?
Or anyway to create more than one lock signal in one thread?
Thanks!
Haitao Qiu
Haitao Qiu <hqiu@ee.ucr.edu> wrote:
Hi, Is it possilbe to create more than one sleepon locks on one thread?
Or anyway to create more than one lock signal in one thread?
At different places in a thread, you could do a pthread_sleepon_lock(),
but you can’t do a pthread_sleepon_lock() if you have already successfully
locked the sleepon mutex.
You could do a pthread_sleepon_wait() for different variables at
different places in a thread.
You could do a pthread_sleepon_signal() for different variables at
different places, or one right after another, if you modified several
different things – note one pthread_sleepon_lock() will make it
safe to modify and signal several different sleepon variables.
And, you can do a pthread_sleepon_broadcast() to wake up several
different other threads all waiting on the same sleepon variable.
Not sure if that answer your question exactly – the question didn’t
quite make sense to me, in the context of sleepons. If not, maybe
try posting a longer explanation of what you are trying to do…
-David
QNX Training Services
http://www.qnx.com/support/training/
Please followup in this newsgroup if you have further questions.