.connectionLost should be called with a Failure, not an Exception.

git-svn-id: svn://svn.twistedmatrix.com/svn/Twisted/trunk@12585 bbbe8e31-12d6-0310-92fd-ac37d47ddeeb

twisted/internet/abstract.py

@@ -14,11 +14,11 @@
 from zope.interface import implements
 
 # Twisted Imports
-from twisted.python import log, reflect, components
+from twisted.python import log, reflect, components, failure
 from twisted.persisted import styles
 
 # Sibling Imports
-import interfaces
+import interfaces, main
 
 class FileDescriptor(log.Logger, styles.Ephemeral):
     """An object which can be operated on by select().
@@ -192,7 +192,7 @@ def writeSequence(self, iovec):
                 self.producer.pauseProducing()
         self.startWriting()
 
-    def loseConnection(self):
+    def loseConnection(self, _connDone=failure.Failure(main.CONNECTION_DONE)):
         """Close the connection at the next available opportunity.
 
         Call this to cause this FileDescriptor to lose its connection; if this is in
@@ -209,7 +209,7 @@ def loseConnection(self):
                 # doWrite won't trigger the connection close anymore
                 self.stopReading()
                 self.stopWriting()
-                self.connectionLost(main.CONNECTION_DONE)
+                self.connectionLost(_connDone)
             else:
                 self.stopReading()
                 self.startWriting()
@@ -333,8 +333,4 @@ def isIPAddress(addr):
                 pass
     return 0
 
-# Sibling Imports
-import main
-
-
 __all__ = ["FileDescriptor"]