[libvirt] callback question
arnaud.champion at devatom.fr
arnaud.champion at devatom.fr
Mon Jan 31 12:37:14 UTC 2011
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 at redhat.com>
Sent: Monday, January 31, 2011 12:43 PM
To: <arnaud.champion at devatom.fr>
Cc: <libvir-list at redhat.com>
Subject: Re: [libvirt] callback question
> On Mon, Jan 31, 2011 at 12:16:24PM +0100, arnaud.champion at 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
>
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