I have implemented the virEventRegisterImpl as in domain-event.c, I have the
unmarshalled msg and another info :
libvir: QEMU error : remoteDomainProcessEvent: unmarshalling msg
libvir: Remote error : unknown program (received 54657374, expected
20008086)
Any clue ?
Best regards,
Arnaud
--------------------------------------------------
From: "Dev.Atom" <arnaud.champ...@devatom.fr>
Sent: Thursday, March 18, 2010 12:20 PM
To: "Matthias Bolte" <matthias.bo...@googlemail.com>
Cc: <libvir-list@redhat.com>
Subject: Re: [libvirt] Using callback under Windows compiling of
libvirtlibrary
I use libportablexdr 4.9.1 from the web site you indicate. I have compile
it without any problem using the mingwin fedora environment (I have
compile all under this environment), I haven't modified anything in the
source, a simple configure like this :
./configure --host=i686-pc-mingw32 --prefix=/usr/i686-pc-mingw32/sys-root/mingw/
then, make and make install, nothing else.
Can explain me or point me on an explaination for registering
event-handling please ?
--------------------------------------------------
From: "Matthias Bolte" <matthias.bo...@googlemail.com>
Sent: Thursday, March 18, 2010 11:39 AM
To: "Dev.Atom" <arnaud.champ...@devatom.fr>
Cc: <libvir-list@redhat.com>
Subject: Re: [libvirt] Using callback under Windows compiling of libvirt
library
2010/3/18 Dev.Atom <arnaud.champ...@devatom.fr>:
Hi,
I have compiled LibVirt 0.7.4 under mingw, and I want to use it with
domain
callback. Here is a a code sample of my situation (I'm using visual
studio)
Did you compile it on Windows, or cross-compile it from Linux?
static
int domain_event(virConnectPtr conn,
virDomainPtr dom,
int evt,
int detail,
void *opaque)
{
bool test = true;
return 0;
}
int
_tmain(int argc, _TCHAR* argv[])
{
virConnectPtr conn = virConnectOpen(
"qemu+tcp://192.168.220.198/session");
// Set Callback
int cbresult = virConnectDomainEventRegister(conn, domain_event, NULL,
NULL);
// Lookup Domain
virDomainPtr dom = virDomainLookupByName(conn,
"Test1");
if (virDomainIsActive(dom) == 1)
{
// Start Domain
int startDom = virDomainCreate(dom);
if (startDom != 0)
{
virErrorPtr e = virGetLastError();
bool test = true;
}
}
else
{
// Stop Domain
int StopDom = virDomainDestroy(dom);
if (StopDom != 0)
{
virErrorPtr e = virGetLastError();
bool test = true;
}
}
return 0;
}
This code is incomplete, you're missing the event-handling, see the
virEventRegisterImpl function.
Have you tried the domain-event example yet? See
examples/domain-events/events-c/event-test.c in the libvirt codebase.
This code works well when I did'nt use callbacks, but when I use it, it
throw an error at the virDomainCreate or virDomainDestroy call. In the
application windows (console) I have an "unmarshaling msg", I have study
the
case it comme from the call of "xdr_string" method in the
"xdr_remote_nonull_string" method (remote_protocol.c).
I think, the xdr_string method is unable to marshall strings from the
XDR*
object to a char**.
Where did you get your XDR lib from? I'm using libportablexdr [1]
version 4.9.1 on Windows, but had to patch it to get it compile
correctly with MinGW.
This may be a bug in your XDR lib, or may be a problem in the way
libvirt uses XDR, or it's just a symptom of that fact that you try to
use domain events without registering event-handling first.
[1] http://people.redhat.com/~rjones/portablexdr/
Matthias
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