Re: [gtkmm] Glib::SignalIO

[Peter Gasper <pgasper designadvantage com>]

On Fri, 2003-08-29 at 14:06, Tassos Bassoukos wrote:
> Hello Peter,
> The problem is that the on_input_received method is an instance method, 
> which requires an instance to be invoked. You will need to make the 
> method static. If you have several instances of the class, simply create 
> a static member method that determines the appropriate instance for that 
> method.

Ya, I knew why it wouldn't work, I just couldn't see a way around it.
Thanks.


> Umm... you have selected *reading* only for that SignalIO, correct?

Yes.


> >>From the documentation it also appears that all Glib::SignalIO does is poll fd, which
> > I can do myself, but I was trying to avoid polling (which is more CPU intensive). 
> 
> IIRC (and I think I do), Glib::SignalIO adds the specified fd to the 
> select syscall at the heart of the event loop. On some systems, this 
> might be implemented as poll(), but this will not affect your programm[0]
> 
> > 
> > Any ideas?
> 
> You could allways use a separate thread for the reading.... Just an idea.

I am already doing that.

> 
> Tassos
> [0] Unless of course you have a need of real-time communication with the 
> serial port, without any buffering, in which case the case needs 
> reconsidering.

Hard real-time, no. But as quick as possible. This is also running on an
embedded processor without a lot of power, hence why I want to avoid
polling. 

thanks for the help.

-- 
Peter Gasper <pgasper designadvantage com>