VoIP Mailing List Archives

[joes.mailing.lists at ...]

Hi,
I've been playing around a bit with mod_python and have a question
about using objects and session cleanup. I put together a trivial
object-based IVR after taking a look at some of the wikipbx examples:
http://fisheye.freeswitch.org:8081/browse/~raw,r=27/WikiPBX/ivr/baseivr.py

these seem to be based on an older version of mod_python where
PySession and uuid still represented appropriate usage, but with a
couple of minor changes I put something together that seemed
appropriate:

--------------------------------------
# -*- mode: python; coding: utf-8 -*-
from freeswitch import *

class BaseIVR( object ):
"""
Basic IVR object.
Defines some common functions and methods.
"""
def __init__( self, session ):
self.session = session
self.session.setInputCallback( self.input_callback )
self.session.setHangupHook( self.hangup_hook )

def hangup_hook( self, session, what ):
"""
Default hangup hook. Overload as needed.
"""
consoleLog( "info","The application hung up for %s.\n\n" % what )
del self.session #Without this call the session/channel never
gets cleaned-up
return

def input_callback( self, session, what, obj ):
"""
Default input callback for dtmf and other events. Overload
this as needed.
"""
if ( what == "dtmf" ):
consoleLog( "info", what + " " + obj.digit + "\n" )
else:
consoleLog( "info", what + " " + obj.serialize() + "\n" )
return "pause"

def main( self ):
"""Basic main method."""
self.session.answer( )
consoleLog( "info", "Testing my IVR object.\n\n" )
self.session.hangup( )
return

def handler( session, args ):
"""Handle the call."""
basicIVR = BaseIVR( session )
basicIVR.main( )
--------------------------------------

The above script works fine, but I noticed that, if I remove the
call to 'del self.session' which I added to the hangup_hook after
reading,
http://jira.freeswitch.org/browse/MODLANG-33

that the session will not be deleted and, as mentioned in the post
above, calling
freeswitchconsole$ show channels

will show that there are hanging/open channels.

Is this because I've created an inappropriate usage scenario, or is
this a bug?

Is the 'del self.session' an appropriate work-around or is that
likely to cause further problems down the road?


Cheers,
Joe

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