Re: [Boost-users] Thread events

From: Oleg Smolsky (oleg.smolsky_at_[hidden])
Date: 2005-09-07 23:24:37

Hello Johan,

Johan 't Hart wrote on 8/09/2005 at 11:04 a.m.:
> I'm quite a newbie in the boost world, and I read the documentation
> about boost::threads. Inthere I read that events were not included
> in boost because they were too error-phrone. That made me wonder how
> to do multithreading without events, for example, how do you make a
> thread wait for something to do without events?
Well, I don't know if it's at all possible to implement a powerful (or
flexible) multi-threaded project using just conditions.

I use sockets and select() instead of WaitForMultipleObjects(). IE
select() is the cross-platform multiplexor that you can use for
threading and network events. That's the "worker thread" side.

As for the "user code" side, you can implement a simple event that can
be signalled and waited upon using conditions. IE it's common to have
event.Wait() and event.Signal(), which are very very basic but
cross-platform:
- you can use boost conditions
- or you can use WaitForSingleObject() on win32 and pthread condition
  on unix. AFAIK that's what boost does.

Best regards,
Oleg.