Re: [Boost-users] Thread creation problem

From: Olaf van der Spek (olafvdspek_at_[hidden])
Date: 2006-03-05 03:08:31

On 3/4/06, Kevin Heifner <heifner_k_at_[hidden]> wrote:
> Olaf van der Spek wrote:
> > I'm converting code using pthreads to boost::thread.
> > I've now got this code:
> > Cdns_worker::Cdns_worker():
> >       m_run(true),
> >       m_thread(boost::bind(&Cdns_worker::run, this))
> > {
> >       // pthread_cond_init(&m_condition, NULL);
> >       // pthread_mutex_init(&m_mutex, NULL);
> >       // pthread_create(&m_thread, NULL, Cdns_worker::run, this);
> > }
> >
> > The data the thread is using is in Cdns_worker, but it seems
> > impossible to delay the thread creation until the end of the
> > constructor, like I could with pthreads.
>
> Not sure why you need to delay thread creation until the end of
> the constructor.  Why not just make sure that m_thread is the
> last attribute in your header so that it is created last?
>
> > What should I do in this case?
>
> You could do this:
>
> m_thread_group.create_thread(boost::bind(&Cdns_worker::run, this));

A thread group is indeed a good idea, that way I can also choose to
use more threads.

> Or this:
>
> boost::scoped_ptr<boost::thread> m_thread;
> m_thread.reset(new boost::thread(boost::bind(&Cdns_worker::run,
> this));

But that requires me to use new.

> > And are there any boost::thread examples?
> > I couldn't find them in the documentation.
>
> C:\boost_1_33_1\libs\thread\example\*.cpp

I searched at http://boost.org/doc/html/threads.html and don't see
examples mentioned. Are they not linked in the online documentation?