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Re: would a mutex_wait be useful?

On Nov 4, 2008, at 1:34 AM, Adam Hamsik wrote:

On Nov,Tuesday 4 2008, at 8:37 AM, Matt Thomas wrote:

I'd like to be able to do a mutex_enter(9) which could be interruptable.
If interrupted, it would return the error why it was interrupted.

Maybe called int mutex_wait(kmutex_t *mtx, int ticks); and if ticks == 0
becomes (mutex_tryenter(mtx) ? 0 : ETIMEOUT).  If tick == -1, means
wait forever.

I would like to ask what is difference between mutex_wait and cv_timedwait.

before you can do cv_timedwait, you must have locked the mutex. What happens if that mutex is locked for a long period and you want to abort the wait?

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