what is the problem here which prevents you from using a pointer? I tend to avoid writeable references, since they obfuscate code. Peter -----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Simon Pickles Sent: Wednesday, July 30, 2008 01:21 To: boost-users@lists.boost.org Subject: Re: [Boost-users] Passing Mutexes Anthony Williams wrote:
Simon Pickles <sipickles@googlemail.com> 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
Ah the old friend boost::ref. Thanks anthony _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users