Subj : Re: How to return a value before leaving critical section?
To   : comp.programming.threads
From : David Schwartz
Date : Tue Jul 19 2005 08:00 pm


"MC" <nospam@nowhere.com> wrote in message 
news:gn7rd1hl3keogo473ml8onbvehujro4smk@4ax.com...

> How do you see this code making use of a 'lock holder' class?  What
> would the calling code look like?

    For this, I wouldn't bother. I'd just do either this:

lock();
if(timeout()) { unlock(); return; }
unlock();

    Or:

lock();
BOOL ret=get_value();
unlock();
return ret;

    Depending on what you like. You can also do this:

BOOL Timeou(void)
{ // call without a lock
 lock();
 BOOL ret=timeout_variable;
 unlock();
 return ret;
}

    And then do "if (!success||Timeout())"

    DS

.