[ace-users] Segmentation faultinACE_Select_Reactor_T::handle_error (with ACE 5.5.9)

[Steve Huston]

> "Bad file descriptor"

Ok.

> I know that the socket has been closed at this point.

Ok.

> Is it not possible to remove a handler after closing its socket?

Yes, it is.

If you have the correct handle value...

> Jules.
> 
> 
> -----Original Message-----
> From: Steve Huston [mailto:shuston at riverace.com] 
> Sent: Friday, June 29, 2007 2:52 PM
> To: Jules d'Entremont; ace-users at cse.wustl.edu
> Subject: RE: [ace-users] Segmentation
> faultinACE_Select_Reactor_T::handle_error (with ACE 5.5.9)
> 
> You could check errno on return and read the code to find out why
> that's happening.
> 
> --
> Steve Huston, Riverace Corporation
> Would you like ACE to run great on your platform?
> See http://www.riverace.com/sponsor.htm
> 
> 
> > -----Original Message-----
> > From: Jules d'Entremont
[mailto:Jules.dEntremont at SolaceSystems.com] 
> > Sent: Friday, June 29, 2007 2:27 PM
> > To: Steve Huston; ace-users at cse.wustl.edu
> > Subject: RE: [ace-users] Segmentation 
> > faultinACE_Select_Reactor_T::handle_error (with ACE 5.5.9)
> > 
> > 
> > I'm getting -1 returned from remove_handler().  I assume that's
bad.
> > How can I find out why it's failing?
> > 
> > Jules.
> > 
> > 
> > -----Original Message-----
> > From: Steve Huston [mailto:shuston at riverace.com] 
> > Sent: Friday, June 29, 2007 2:05 PM
> > To: Jules d'Entremont; ace-users at cse.wustl.edu
> > Subject: RE: [ace-users] Segmentation
> > faultinACE_Select_Reactor_T::handle_error (with ACE 5.5.9)
> > 
> > Hi Jules,
> > 
> > > Actually, I spoke too soon.  Here's something I got from
valgrind:
> > > 
> > > ==29898== Invalid read of size 4
> > 
> > Yup, that'd do it ;-)
> > 
> > > This seems to indicate that a MessageReader (which is derived
from
> > > ACE_Event_Handler) gets deleted while still registered with the
> > reactor.
> > 
> > Yes, exactly.
> > 
> > > But it should get cleaned up in handle_close():
> > 
> > The evidence suggests that something remains not cleaned up. I'd
> have
> > a closer look at the remove_handler() call with an eye toward how
a
> > handle could get left registered.
> > 
> > -Steve
> >  
> > 
> > 
> 
> 
>