Re: [libvirt] callback question
Okay, I understand.
When the AddHandle function, I receive a fd (FileDescription), its value is
3... always... Is that normal ? Is that file descriptor on a socket or on a
file ? (In windows, when can use the WSAPoll function but it works on ly on
sockets)
Regards,
Arnaud
--------------------------------------------------
From: "Daniel P. Berrange" <berrange(a)redhat.com>
Sent: Monday, January 31, 2011 12:43 PM
To: <arnaud.champion(a)devatom.fr>
Cc: <libvir-list(a)redhat.com>
Subject: Re: [libvirt] callback question
On Mon, Jan 31, 2011 at 12:16:24PM +0100, arnaud.champion(a)devatom.fr
wrote:
> ?Hi,
>
> Something I need to understant about callbacks:
>
> if I install 2 callback via DomainEventRegisterAny (lifecycle
> for the first and graphics for the second for example), am I
> right if I said that the AddHandleFunc should be called 2 times ?
No, there is no direct relationship between the number of
calls to DomainEventRegister* and AddHandleFunc. In the
current impl we only call AddHandleFunc once per virConnect
object, but again that isn't guarenteed - different libvirt
drivers will invoke AddHandleFunc / AddTimeoutFunc a different
number of times, as is most suitable for their precise needs.
Daniel