Re: would a mutex_wait be useful?

[Matt Thomas <matt%3am-software.com@localhost>]

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

> Hi,
> 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?