Update libvirt related tags when libvirt connection state changes.

ccnode/hypervisor/__init__.py

@@ -45,7 +45,9 @@ class Handler(HostHandler):
     def virt_connected(self, value):
         self._virt_connected = value
         # update tags
-        for tag in ('vir_status', 'hvver', 'libvirtver'):
+        for tag in ('vir_status', 'sto', 'nvm', 'vmpaused', 'vmstarted',
+                    'vmstopped', 'hvver', 'libvirtver', 'hv'):
+            # TODO tag annoucement
             self.tag_db['__main__'][tag].calculate_value()
 
     def start(self):
@@ -287,6 +289,11 @@ class Hypervisor(object):
                              state)
                 vm.state = state
 
+        # update domain state counts
+        for tag in ('nvm', 'vmpaused', 'vmstarted', 'vmstopped'):
+            # TODO tag announcement
+            self.handler.tag_db['__main__'][tag].calculate_value()
+
     def vm_define(self, xml_desc):
         """Create a VM on the Hypervisor
         :param str xml_desc: XML description in libvirt format

ccnode/hypervisor/domains/__init__.py

@@ -63,6 +63,7 @@ class VirtualMachine(object):
     @state.setter
     def state(self, value):
         self._state = value
+        # TODO tag announcement
         self.tags['status'].value = value
 
     @property