[IronPython] socket, _socket, and socket.py

Zachary Gramana zgramana at pottsconsultinggroup.com
Wed May 18 07:34:08 PDT 2011


That's good enough for me.  I'm going to give it a go.

On 5/17/2011 6:48 PM, Dino Viehland wrote:
> I think manual ref count tracking (like _make_filerefs) + defining __del__ on the socket objects would fix it.  But there may be issues w/ that - when we first encountered this I pinged python-dev and I recall Guido saying that there were problems getting anything else working on Windows.  So there may be some oddity that prevents this from working but I don't know what that is off the top of my head.
>
>> -----Original Message-----
>> From: users-bounces at lists.ironpython.com [mailto:users-
>> bounces at lists.ironpython.com] On Behalf Of Zachary Gramana
>> Sent: Tuesday, May 17, 2011 3:38 PM
>> To: Discussion of IronPython
>> Subject: Re: [IronPython] socket, _socket, and socket.py
>>
>> I noticed this, with a little disappointment. I also noticed that they
>> implemented a sort of ersatz/platform agnostic reference tracking system in
>> ssl.py.  Seeing the _makefile_refs system got me thinking about the whole
>> ssl.py/_ssl.pyd paradigm and sockets.cs, since I remembered you tackled this
>> issue once before (or one very similar to it:
>> http://lists.ironpython.com/pipermail/users-ironpython.com/2007-
>> May/004946.html).
>>
>> Perhaps something along the lines of _makefile_refs and
>> GC.SuppressFinalize might get us closer?
>>
>> On 5/17/2011 6:06 PM, Dino Viehland wrote:
>>> There is actually more of a story to this though - Cpython's socket.py
>>> relies upon reference counting for handling dup.  See this comment
>>> from
>>> socket.py:
>>>
>>> # Wrapper around platform socket objects. This implements
>>>
>>> # a platform-independent dup() functionality. The
>>>
>>> # implementation currently relies on reference counting
>>>
>>> # to close the underlying socket object.
>>>
>>> class _socketobject(object):
>>>
>>> Because IronPython doesn't have a reference counting GC we cannot
>>> simply use socket.py.  So someone would need to patch both IronPython
>>> and socket.py so this would work.  For the record it looks like Jython
>>> also has a custom socket.py.
>>>
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