PROTON-2116: Python memory leak - break circular reference Transport <-> Selectable on Connection cleanup
diff --git a/python/proton/_handlers.py b/python/proton/_handlers.py
index 5ecb3e5..86d083a 100644
--- a/python/proton/_handlers.py
+++ b/python/proton/_handlers.py
@@ -1280,6 +1280,8 @@
t.close_head()
t.close_tail()
s.terminate()
+ s._transport = None
+ t._selectable = None
s.update()
def on_selectable_expired(self, event):
@@ -1351,12 +1353,16 @@
except:
if transport.closed:
selectable.terminate()
+ selectable._transport = None
+ transport._selectable = None
try:
pending = transport.pending()
selectable.writing = pending>0
except:
if transport.closed:
selectable.terminate()
+ selectable._transport = None
+ transport._selectable = None
selectable.deadline = transport.tick(now)
selectable.update()
@@ -1373,6 +1379,8 @@
s = t._selectable
if s and not s.is_terminal:
s.terminate()
+ s._transport = None
+ t._selectable = None
r.update(s)
t.unbind()
@@ -1400,6 +1408,7 @@
# Disassociate from the socket (which has been passed on)
self._delegate = None
self.terminate()
+ self._transport = None
self.update()
return
elif e == errno.ECONNREFUSED:
@@ -1420,4 +1429,5 @@
t.close_tail()
t.close_head()
self.terminate()
+ self._transport = None
self.update()
