July 2010 - Devel - libvirt List Archives

Re: [libvirt] [libvirt-users] C API example
by Dave Allan 02 Jul '10

02 Jul '10

On Thu, Jul 01, 2010 at 01:43:55PM -0700, steven765(a)yahoo.com wrote: > Hi Dave, > Thanks for the reply after getting some sleep the question I should have asked is what libraries do I need to link the application against? If I just try gcc -o a.out hellolibvirt.c it can't find any of the libvirt calls. [cc'ing the list again so the answer gets archived] Libvirt's no different from any other library, you need to link against libvirt, and you need to have the libvirt headers installed. On Fedora, that's: yum install libvirt-devel If you want to build hellolibvirt without using make, you'll need to edit hellolibvirt.c and take out config.h, which is unused. Then you can do: gcc -o hellolibvirt -lvirt hellolibvirt.c Then you just need to learn the API and decide what you want to do with it. ;-) The API is documented at: http://libvirt.org/html/libvirt-libvirt.html Dave > Thanks, > Steve > > --- On Thu, 7/1/10, Dave Allan <dallan(a)redhat.com> wrote: > > > From: Dave Allan <dallan(a)redhat.com> > > Subject: Re: [libvirt-users] C API example > > To: steven765(a)yahoo.com > > Cc: "Justin Clift" <justin(a)salasaga.org>, libvirt-users(a)redhat.com > > Date: Thursday, July 1, 2010, 2:06 PM > > On Wed, Jun 30, 2010 at 07:37:27PM > > -0700, steven765(a)yahoo.com > > wrote: > > > I think so, but I'm locked out at home. I'll have to > > try at school tomorrow. It gave me a remote error, but > > with the correct directory so fingers crossed thanks! > > > > > > > > btw might you or anyone know what I have to include to > > start a clean project of my own? So if I want to just > > build an application that uses the API with nothing else but > > what's necessary? > > > > If you're talking about a C application, you're pretty much > > describing > > hellolibvirt. I tried to put enough in there to > > demonstrate a couple > > of different calls, but hopefully not so much that it's > > overwhelming. > > If it seems like there's a lot there, cut some of it > > out. You don't > > need the showDomains function, for example. Remove > > it, compile and > > see what happens. > > > > Dave > > > > > > > Thanks, > > > Steve > > > > > > --- On Wed, 6/30/10, Justin Clift <justin(a)salasaga.org> > > wrote: > > > > > > > From: Justin Clift <justin(a)salasaga.org> > > > > Subject: Re: [libvirt-users] C API example > > > > To: "Dave Allan" <dallan(a)redhat.com> > > > > Cc: steven765(a)yahoo.com, > > libvirt-users(a)redhat.com > > > > Date: Wednesday, June 30, 2010, 10:09 PM > > > > On 07/01/2010 11:54 AM, Dave Allan > > > > wrote: > > > > <snip> > > > > > ./hellolibvirt \ > > > > > > > > > > > qemu+unix:///system?socket=/var/run/libvirt/libvirt-sock > > > > > > > > Thanks Dave. The +unix:// and ?socket=xxx bits > > are > > > > what I'd not been picking up on. Should be good > > now. > > > > > > > > Steven, is it working for you? > > > > > > > > Regards and best wishes, > > > > > > > > Justin Clift > > > > > > > > -- Salasaga - Open Source eLearning IDE > > > > http://www.salasaga.org > > > > > > > > > > > > > > > > > >

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[libvirt] [PATCH] ruby-libvirt: virNodeGetFreeMemory and virGetLibVersion
by Jaromír Červenka 02 Jul '10

02 Jul '10

Author is Michal Hrušecký <mhrusecky(a)suse.cz>. He was unsure about second patch, maybe adds duplicate functionality, please check it. Greetings, Jaromir.

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[libvirt] make check fails on CentOS 5
by Daniel Berteaud 02 Jul '10

02 Jul '10

Hi. I'm using libvirt on a CentOS 5.4 x86_64 host without issue, until libvirt 0.8.1. I usually just rebuild the available src rpm with the following args: --without xen --without xen-proxy \ --without lxc --without vbox --without esx \ --without phyp --without one --without avahi \ --without openvz --without uml (I only use KVM) But, with libvirt 0.8.1, the buiild process now include make check, and one of the check fails: interfaceschematest Attached is the full build log, you can see the failure line 1841. I really don't know how to debug this. For now, I've just added interfaceschematest to the list of check to skip in the spec file (for i in nodeinfotest daemon-conf seclabeltest interfaceschematest). With this modification, everything works, and I'm actually using it this way. Anybody knows why this test fails ? Regards, Daniel -- Daniel Berteaud FIREWALL-SERVICES SARL. Société de Services en Logiciels Libres Technopôle Montesquieu 33650 MARTILLAC Tel : 05 56 64 15 32 Fax : 05 56 64 15 32 Mail: daniel(a)firewall-services.com Web : http://www.firewall-services.com

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[libvirt] Ask for help about libvirt error: can't get physical interface data for kvm.
by Feng Dan Liu 01 Jul '10

01 Jul '10

Hi I find this mail address from the internet and hope I can get the reply from anyone of you, that will be very appreciated. I'm using virsh to manage the KVM(qemu-kvm 0.12.4, libvirt 0.8.1), but I encounter an error as below: I saw both libvirt api and virsh commands support to get the physical interfaces data, but it always fail when I using them for KVM hypervisor. I was thought that it was due to the old version of libvirt/KVM hypervisor, but the error still exist when using the latest libvirt and kvm hypervisor. So I wonder if the following functions of libvirt haven't been implemented for KVM, could you pls help me get the answer about this? Thanks in advance! virConnectListInterfaces virConnectNumOfDefinedInterfaces virConnectNumOfInterfaces virConnectListDefinedInterfaces virInterfaceLookupByName Best Regards, Fengdan Liu Tivoli ITCAM Solution, IBM China Software Development Lab, Tel: 13811762746 Email: liufengd(a)cn.ibm.com 3/F, Haohai Bldg., No.7, 5th Street, Shangdi, Haidian District, Beijing 100085, P.R.China

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