mirrors/ryu
1
0
Fork 0
mirror of https://github.com/faucetsdn/ryu.git synced 2026-05-08 22:06:10 +02:00
Code Issues Projects Releases Wiki Activity

dispatcher: eliminate use of weakref for EventQueue event queue

Browse Source 
event queue for EventQueue event can be normal reference by assuming
the queue is never freed.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
This commit is contained in:
Isaku Yamahata 2012-02-24 14:37:33 +09:00 committed by FUJITA Tomonori
parent 68b1424ef3
commit 1ca3314a66
1 changed files with 7 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
ryu/controller/dispatcher.py
View File

@ -32,18 +32,16 @@ LOG = logging.getLogger('ryu.controller.dispatcher')
class EventQueue(TrackInstances):
# weakref: break circular reference
# self._ev_q_weakref == weakref.ref(self)
_ev_q_weakref = None
_ev_q = None
def set_ev_q(self):
self.__class__._ev_q_weakref = weakref.ref(self)
# Be careful: circular reference
# It is assumed that event queue for EventQueue is never freed.
self.__class__._ev_q = self
def _get_ev_q(self):
ev_q = self._ev_q_weakref
if ev_q is not None:
ev_q = ev_q()
return ev_q
@classmethod
def _get_ev_q(cls):
return cls._ev_q
def _queue_q_ev(self, ev):
ev_q = self._get_ev_q()