[Boost-users] Re: Re: Re: Q: Stopping threads (Win32) or...themysterious case of the thread with split personality

From: Dan Dimerman (dimerman_at_[hidden])
Date: 2004-12-06 10:08:17

"Ben Hutchings" <ben.hutchings_at_[hidden]> wrote in message 
news:41B47000.1030500_at_businesswebsoftware.com...
> That still won't solve your problem, in general.  Multithreading is an / 
> ... /
> You should protect all access to the controlling flag with a mutex.  In 
> this case it would probably be sufficient to use the "volatile" qualifier 
> on the controlling member, but this is not generally a good solution.
> Ben.

In this case, I think the problem was that by {mis,ab,}using the boost 
thread lib, I passed a copy of
the functor that would be the worker thread instead of just a reference to 
it, hence the duplicity.
Protecting that variable with a mutex wouldn't have had any effect, since 
there would have been two copies still.
regards...
Dan

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