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23.08.2013 00:51, Alexandr пишет:
21.08.2013 12:58, Alexandr пишет:
> 21.08.2013 12:39, Daniel P. Berrange пишет:
>> On Wed, Aug 21, 2013 at 12:36:06PM +0300, Alexandr wrote:
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>>>
>>> 21.08.2013 09:46, Alexandr пишет:
>>>> 21.08.2013 09:32, Martin Kletzander пишет:
>>>>> On Wed 21 Aug 2013 01:03:37 AM CEST, Alexandr wrote:
>>>>>>
>>>>>> good day. i trying to make callback function for
>>>>>> VIR_DOMAIN_EVENT_ID_LIFECYCLE, i have successfully
>>>>>> registering callback, but it never called, i need to
>>>>>> know when domain started, stopped or crashed, i have
>>>>>> write following code
>>>>>>
>>>>>> static int domain_event_handler(virConnectPtr conn,
>>>>>> virDomainPtr dom, int event, int detail, void *
>>>>>> opaque) { switch(event) { } return 0; }
>>>>>>
>>>>>> ..... int callback =
>>>>>> virConnectDomainEventRegisterAny(libvirt_connection,
>>>>>> NULL, VIR_DOMAIN_EVENT_ID_LIFECYCLE,
>>>>>> VIR_DOMAIN_EVENT_CALLBACK(domain_event_handler), NULL,
>>>>>> NULL); if(callback == -1) { std::cout<<"Error:
failed
>>>>>> to register domain event handle callback\n"; return -1;
>>>>>> } .....
>>>>>>
>>>>>>
>>>>>> but "domain_event_handler" is never called, what is
>>>>>> wrong here ?
>>>>
>>>>> Are you running an event loop? You can have a look at
>>>>> our examples [1] and see what's being done there.
>>>>> Especially note the virEventRunDefaultImpl() [2] there.
>>>>
>>>>> Martin
>>>>
>>>>> [1]
>>>>>
http://libvirt.org/git/?p=libvirt.git;a=blob;f=examples/domain-events/eve...
>>>>
>>>>>
>>>>
>>>>
>>>>>
>>>>>
>>>>>
[2]
>>>>>
http://libvirt.org/git/?p=libvirt.git;a=blob;f=examples/domain-events/eve...
>>>>
>>>>>
>>>>
>>>>
>>>>>
>>>>>
>>>>>
oh..., i missed it, thx for hint and sorry for stupid questions .
>>>
>>> now it's working except for events from other connections,
>>> for example i want to handle domain started by virt-manager,
>>> now i do not have event when it's started, is exists any api
>>> to handle this events, or i need to implement internal
>>> polling of domains state in my application ?
>> The events system reports all lifecycle events, regardless of
>> which connection triggered them.
>> If you're not seeing events from domains started by
>> virt-manager then your almost certainly connecting to a
>> different libvirt URI than virt-manager is using.
>> Daniel
> also looks like i do not receiving last event, i mean last event
> what passed to callback is "eventcount - 1"
> _______________________________________________ libvirt-users
> mailing list libvirt-users(a)redhat.com
>
https://www.redhat.com/mailman/listinfo/libvirt-users
after few days of trying i have not resolved problem, and have
followinf situation: i receiving events from my connection
sometimes (not all and not always), i do not receiving events from
other connections (virt-manager) at all (i am sure that connection
url are same for both connections), my code follows:
static int domain_event_handler(virConnectPtr conn, virDomainPtr
dom, int event, int detail, void * opaque) { std::cout<<"domain
event handler called\n"; }
void libvirt_eventloop_thr_func() { while(true) //TODO: stop
somehow on exit { if(virEventRunDefaultImpl() < 0) { virErrorPtr
err = virGetLastError(); fprintf(stderr, "Failed to run event loop:
%s\n", err && err->message ? err->message : "Unknown
error"); } }
}
.... virSetErrorFunc(NULL, libvirt_error_handler);
libvirt_connection = virConnectOpen("qemu:///system");
if(libvirt_connection == NULL) { std::cout<<"failed to connect to
qemu:///system\n"; return -1; } std::cout<<"connected to
qemu:///system\n";
if (virEventRegisterDefaultImpl() < 0) { virErrorPtr err =
virGetLastError(); fprintf(stderr, "Failed to register event
implementation: %s\n", err && err->message ? err->message:
"Unknown
error"); return -1; } { int callback =
virConnectDomainEventRegisterAny(libvirt_connection, NULL,
VIR_DOMAIN_EVENT_ID_LIFECYCLE,
VIR_DOMAIN_EVENT_CALLBACK(domain_event_handler), NULL, NULL);
if(callback == -1) { std::cout<<"Error: failed to register domain
event handle callback\n"; return -1; } }
boost::thread(boost::bind(&libvirt_eventloop_thr_func)); ....
am i doing something wrong here ?
_______________________________________________ libvirt-users
mailing list libvirt-users(a)redhat.com
https://www.redhat.com/mailman/listinfo/libvirt-users
also i have started
libvirt/libvirt-1.1.1/examples/domain-events/events-c example, and it
have same problems as my code, it does not receiving any events from
virt-manager
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