Re: [Kimchi-devel] [PATCHv2 1/2] Make vms model to be a singleton

From: Royce Lv <lvroyce(a)linux.vnet.ibm.com&gt; In vms model __init__ function, a backgroud task is started: self.guests_stats_thread = BackgroundTask(GUESTS_STATS_INTERVAL, self._update_guests_stats) self.guests_stats_thread.start() when VMsModel.get_list() need to be called ([PATCH]Add volume ref_cnt: Add model and mockmodel implementation) one more background task is started. This is not able to be fixed by staticmethod because connection will not be passed by controller. So make vms model a singleton. Signed-off-by: Royce Lv <lvroyce(a)linux.vnet.ibm.com&gt; --- src/kimchi/model/vms.py | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/kimchi/model/vms.py b/src/kimchi/model/vms.py index 3f3a152..0d029eb 100644 --- a/src/kimchi/model/vms.py +++ b/src/kimchi/model/vms.py @@ -27,6 +27,7 @@ from cherrypy.process.plugins import BackgroundTask from kimchi import vnc from kimchi import xmlutils +from kimchi.basemodel import Singleton from kimchi.config import READONLY_POOL_TYPE from kimchi.exception import InvalidOperation, InvalidParameter from kimchi.exception import MissingParameter, NotFoundError, OperationFailed @@ -53,6 +54,8 @@ stats = {} class VMsModel(object): + __metaclass__ = Singleton + def __init__(self, **kargs): self.conn = kargs['conn'] self.objstore = kargs['objstore']