baseclass: Add helper for launching daemon thread

And use it in a few spots

virtManager/baseclass.py

@@ -21,6 +21,7 @@
 import logging
 import os
 import sys
+import threading
 import traceback
 
 from virtManager import config
@@ -119,6 +120,13 @@ class vmmGObject(GObject.GObject):
         # Function generates 2 temporary refs, so adjust total accordingly
         return (sys.getrefcount(self) - 2)
 
+    def _start_thread(self, target=None, name=None, args=None, kwargs=None):
+        # Helper for starting a daemonized thread
+        t = threading.Thread(target=target, name=name,
+            args=args or [], kwargs=kwargs or {})
+        t.daemon = True
+        t.start()
+
     def connect_once(self, signal, func, *args):
         id_list = []
 

virtManager/connection.py

@@ -24,7 +24,6 @@ import logging
 import os
 import re
 import socket
-import threading
 import time
 import traceback
 
@@ -86,7 +85,6 @@ class vmmConnection(vmmGObject):
             self._uri = "xen:///"
 
         self._state = self._STATE_DISCONNECTED
-        self._connectThread = None
         self._connectError = None
         self._backend = virtinst.VirtualConnection(self._uri)
         self._closing = False
@@ -842,7 +840,7 @@ class vmmConnection(vmmGObject):
                 self.emit("mediadev-added", mediadev)
             self.idle_add(_add_idle)
 
-        threading.Thread(target=_add_thread, name="AddMediadev").start()
+        self._start_thread(_add_thread, "nodedev=%s AddMediadev" % name)
 
     def _nodedev_mediadev_removed(self, ignore1, name):
         if name not in self._mediadevs:
@@ -934,10 +932,8 @@ class vmmConnection(vmmGObject):
         else:
             logging.debug("Scheduling background open thread for " +
                          self.get_uri())
-            self._connectThread = threading.Thread(target=self._open_thread,
-                                            name="Connect %s" % self.get_uri())
-            self._connectThread.setDaemon(True)
-            self._connectThread.start()
+            self._start_thread(self._open_thread,
+                "Connect %s" % self.get_uri())
 
     def _do_creds_password(self, creds):
         try:
@@ -1066,7 +1062,6 @@ class vmmConnection(vmmGObject):
         return pollhelpers.fetch_vms(self._backend, self._vms.copy(),
                     (lambda obj, key: vmmDomain(self, obj, key)))
 
-
     def _obj_signal_proxy(self, obj, signal, key):
         ignore = obj
         self.emit(signal, key)

virtManager/engine.py

@@ -267,10 +267,7 @@ class vmmEngine(vmmGObject):
                 self.idle_add(connect, uri)
 
         add_next_to_queue()
-        thread = threading.Thread(name="Autostart thread",
-            target=handle_queue, args=())
-        thread.daemon = True
-        thread.start()
+        self._start_thread(handle_queue, "Conn autostart thread")
 
 
     def _do_vm_removed(self, conn, connkey):