Re: [libvirt] Raising events for testing

Okay I have understand the use and mean of poll (pollfd... bla...bla...bla...) I have also discover that there is no Win32 equivalent which work with a file descriptor (unix way...). Win32 has a select method that can be used to emulate the poll function, but the fd_set structure is base on socket and not on a file descriptor. Does anyone know a way to have a select or poll function that works with file descriptor under windows ? (maybe via mingw, I don't know) Regards, Arnaud -------------------------------------------------- From: <arnaud.champion(a)devatom.fr&gt; Sent: Friday, January 28, 2011 7:06 PM To: "Daniel P. Berrange" <berrange(a)redhat.com&gt; Cc: <libvir-list(a)redhat.com&gt; Subject: Re: [libvirt] Raising events for testing > Okay, I'm trying to understand the Python implentation (I'm not a python > expert but it seems to be quite readable once you've understand why there > is "self" everywhere :) ). > The thing I'm not able to understand is the call to the "poll" function > as this function doesn't exists in C# in any library at my knows... I'm > not fluent with this. Anyone can expliain what poll do ? > > Regards > > Arnaud > > -------------------------------------------------- > From: <arnaud.champion(a)devatom.fr&gt; > Sent: Friday, January 28, 2011 4:53 PM > To: "Daniel P. Berrange" <berrange(a)redhat.com&gt; > Cc: <libvir-list(a)redhat.com&gt; > Subject: Re: [libvirt] Raising events for testing > >> Woohoo it will burn my brain :) >> >> -------------------------------------------------- >> From: "Daniel P. Berrange" <berrange(a)redhat.com&gt; >> Sent: Friday, January 28, 2011 4:24 PM >> To: <arnaud.champion(a)devatom.fr&gt; >> Cc: <libvir-list(a)redhat.com&gt; >> Subject: Re: [libvirt] Raising events for testing >> >>> On Fri, Jan 28, 2011 at 04:17:21PM +0100, arnaud.champion(a)devatom.fr >>> wrote: >>>> I suffer with the new callback API :) >>>> >>>> Does the new callback API need the EventRegisterImpl call ? >>> >>> Yes, virEventRegisterImpl is required in order to be able to >>> receive events. >>> >>>> Can anyone explain me the steps to install these callbacks ? I have >>>> a lot of difficulties to understand the polling process in the >>>> sample, does this polling is mandatory ? >>> >>> Events can arrive at the client socket from libvirtd at >>> any time. The poll() is used to watch for events arriving >>> and ensure immediate dispatch. If we didn't do this no >>> events would be seen until the next API call was made >>> which is sub-optimal. >>> >>> The file daemon/events.c shows a complete C implementation >>> of the event callbacks. >>> >>> The file examples/domain-events/events-python/domain-events.py >>> shows a pure Python implementation >>> >>> The C example program is a very *bad* demo of poll() so ignore >>> that and look at daemon/events.c instead. >>> >>> Daniel >>> >> >> -- >> libvir-list mailing list >> libvir-list(a)redhat.com >> https://www.redhat.com/mailman/listinfo/libvir-list > > > -- > libvir-list mailing list > libvir-list(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvir-list -- libvir-list mailing list libvir-list(a)redhat.com https://www.redhat.com/mailman/listinfo/libvir-list