Subj : Re: reliability of setting thread priority
To   : comp.programming.threads
From : Alexander Terekhov
Date : Sat Feb 26 2005 01:13 am


gottlobfrege@gmail.com wrote:
[...]
> the DCSI.  Would it be possible to start unlocked, and have the '2nd'
> one in (ie first contention actually) do the slow_lock, create the
> event, etc?  

Event creation may fail (throw). It is typical to have the "2nd one" 
in some destructor (and 1st one in a constructor of some object where
it can fail safely). Destructors shall not fail. Fallback to a single 
preallocated global wait/broadcasted beast (so that lock's lazy init 
never fails) in the case of event init failure would mitigate the 
problem, but it isn't really worth the effort (given typical use 
cases). So, it is possible, but brain-dead. MS critical sections work
that way. ;-)

regards,
alexander.

.