On 14-Dec-2007 Daisuke Maki wrote:
> Hi,
>
> I might just be missing something obvious, is there anyway to tell if an
> object being accessed via POE::Component::Generic is dead?
Short answer : your code should never die!
Looking at my code, it seems that POE::Component::Generic doesn't handle dead
child processes very well.
Unless you wish to modify PoCo::Generic (patches welcome!), you could you'll
have to overload the __wheel_close(). Roughly :
package My::Generic;
use base qw( POE::Component::Generic );
sub __wheel_close {
my( $self, $wheel_id ) = @_[ OBJECT, ARG0 ];
# your code here
$_[KERNEL]->post( $your_session, 'respawn_event', ... )
$self->SUPER::__wheel_close( @_ );
}
> Basically, I'd like to wrap things like DBI access and such underneath
> PoCo::Generic, but at the same time I'd like to detect when, for
> example, a DBI connection is lost, or perhaps the child process that is
> wrapping DBI is killed.
You might want to look at POE::Component::EasyDBI, from which
POE::Component::Generic is a philosophical descendent. It handles gracefully
restarting the child process if it dies, something that POE::Component::Generic
never will.
-Philip
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