[gstreamer-bugs] [Bug 543961] Memory leak in gst.Bin.do_handle_message

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-python | Ver: HEAD CVS

Edward Hervey changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bilboed at bilboed.com
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1




------- Comment #2 from Edward Hervey  2008-07-21 12:00 UTC -------
ok, so this is all related to methods 'stealing' references.

with gst.Bin.handle_message you might be using it in two different ways.

* Either you create a *new* message from python within that method, in which
case you will indeed need the C wrapper (GstBin__do_handle_message in
gstbin.override) to increment the refcount of the miniobject before calling the
parent function in order for the Python miniobject wrapper to still have its
reference against the C miniobject...
*.. or you will be just re-using the message given to you, which has already
gone under the assumption that the reference will be stolen.

The override only assumes the first case (in which case in adds a reference).
If you use the code as in the second case... there will be a reference too much
=> it leaks.

Will need to think a bit more on how to solve this issue.


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