[boost] Re: [boost::thread] locks, exceptions and assertions

From: Jonathan Biggar (jon_at_[hidden])
Date: 2003-07-21 18:52:13

Peter Dimov wrote:
> Russell Hind wrote:
> 
>>Fair enough.  My most common use is for automatically
>>locking/unlocking 
>>
>>void function(void)
>>{
>>scoped_lock lock(themutex);
>>     ... do something
>>     lock.unlock();
>>         ... do some more
>>     lock.lock();
>>     ... do something else
>>}
>>
>>with possible a while-loop around the unlock/lock code.  From this, I
>>have seen it as a coding error if I call lock without an unlock but
>>this probably isn't the same for everyone.
> 
> 
> This looks like a motivating example for scoped_unlock. :-)

Yes, I've long wanted that.  Particularly when the second "do some more" 
involves a "long" operation that you don't want to hold the lock while 
it is pending.

-- 
Jon Biggar
Floorboard Software
jon_at_[hidden]
jon_at_[hidden]