Re: [Boost-users] Passing Mutexes

From: Anthony Williams (anthony.ajw_at_[hidden])
Date: 2008-07-30 04:00:08

Simon Pickles <sipickles_at_[hidden]> writes:

>    producer( boost::shared_ptr<std::vector<result> > results,
> boost::mutex& mtx )
>    {
>        boost::thread( boost::bind( &DoInThread, this, results, mtx )
> ); // actually uses a threadpool but not relevant here.
>    }

> I am trying to share a single mutex with both producer and
> consumer. However I get a noncopyable error, even if I pass a
> reference.

boost::bind *copies* its parameters, so you will get an error about
being unable to copy. You need to use boost::ref:

boost::thread( boost::bind( &DoInThread, this, results, boost::ref(mtx) ));

Anthony
-- 
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