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[Libvir] libver-python fix & test script



Against the current CVS version, the python method libvir.open() is failing because it requires "name" as a parameter, but in src/libvir.c, virConnectOpen returns NULL if name is set. Very simple patch attached.

Also attached is a simple script to test reporting of domain state via the python bindings. Hopefully useful as a test of the python bindings/simple example of how to use them. It generates output like this:

[root chaka ~]# ./libver-python-test
Attached to a hypervisor of type - Xen
There are currently 2 domains running

Domain ID 0 is named Domain-0
       State is Running
       maxMem is -4
       memory is 262224
       nrVirtCpu is 1
       cpuTime is 2294771524162

Domain ID 2 is named guest1
       State is Blocked
       maxMem is 131072
       memory is 131052
       nrVirtCpu is 1
       cpuTime is 34682760385

--- libvir-pristine/src/libvir.c	2006-01-27 08:59:42.000000000 +0000
+++ libvir-0.0.2/src/libvir.c	2006-02-07 12:59:17.000000000 +0000
@@ -89,8 +89,8 @@
     struct xs_handle *xshandle = NULL;
 
     /* we can only talk to the local Xen supervisor ATM */
-    if (name != NULL) 
-        return(NULL);
+/*    if (name != NULL) 
+        return(NULL); */
 
     handle = xenHypervisorOpen();
     if (handle == -1)
#!/usr/bin/env python
#
# Simple script to test libver-python reporting
#
# Copyright 2005-2006  Red Hat, Inc.
# Angus Thomas <athomas redhat com>
#
# This software may be freely redistributed under the terms of the GNU
# general public license.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

domain_states="No State", "Running", "Blocked", "Paused", "Shutdown", "Shutoff", "Crashed"

import libvir

virt=libvir.open("Xen");
print ("Attached to a hypervisor of type - %s" % (virt.getType()));

print ("There are currently %s domains running" % (virt.numOfDomains()));

id_list=virt.listDomainsID();
for dom_id in id_list:
	dom=virt.lookupByID(dom_id);
	print ("\nDomain ID %s is named %s" % (dom_id, dom.name()));
	dom_info=dom.info();
#	print ("\tState is %s" % (dom_info[0]));
	print ("\tState is %s" % (domain_states[dom_info[0]]));
	print ("\tmaxMem is %s" % (dom_info[1]));
	print ("\tmemory is %s" % (dom_info[2]));
	print ("\tnrVirtCpu is %s" % (dom_info[3]));
	print ("\tcpuTime is %s" % (dom_info[4]));

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