[Dextrose] [sugar PATCH] sl#3326: Do not attach any signals to the dangling-connection-object after it has called the "__connection_ready_cb" callback.
dsd at laptop.org
Wed Jul 25 16:59:27 EDT 2012
On Wed, Jul 25, 2012 at 2:52 PM, Ajay Garg <ajay at activitycentral.com> wrote:
> Thanks to Jerry Vonau, for inspiring and guiding me to solve this :-)
Thanks for working on this!
> src/jarabe/model/neighborhood.py | 19 +++++++++++++++++++
> 1 files changed, 19 insertions(+), 0 deletions(-)
> diff --git a/src/jarabe/model/neighborhood.py b/src/jarabe/model/neighborhood.py
> index 39f648e..5692ca9 100644
> --- a/src/jarabe/model/neighborhood.py
> +++ b/src/jarabe/model/neighborhood.py
> @@ -260,6 +260,25 @@ class _Account(gobject.GObject):
> def __connection_ready_cb(self, connection):
> + # http://bugs.sugarlabs.org/ticket/3326
> + #
> + # Daniel Drake has given a comprehensive description of the
> + # issue. So the fix is that, when the
> + # dangling-connection-object calls the "__connection_ready_cb",
> + # check to see if it is the same as the referenced
> + # "self._connection" object. If not, simply return; this would
> + # have the following consequences ::
> + #
> + # (i)
> + # not connect any more signals to the
> + # dangling-connection-object.
> + #
> + # (ii)
> + # the dangling-connection-object would finally be
> + # garbage-collected.
> + if connection != self._connection:
> + return
This probably works, but its a workaround rather than a fix. (Also,
I'm doubtful that it would be garbage collected at this point. Have
you verified this?)
The core of the problem is that two Connection objects are created to
track a single telepathy connection. A patch that addresses this would
correctly solve the problem.
Have you considered the approach I suggested on the ticket?
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