On Thu, 2016-06-02 at 05:16 -0400, Frediano Ziglio wrote:
> Hi,
> I think this was the start of the regression that basically caused
> the regression introduced by d232e92794c74a326d1e48355d257f24a6d497c2
> ("Use GQueue for RedCharDevice::send_queue").
>
> Basically on cc47d9eba84d33012da660d7dcee3a6e3eb8d99f
> ("reds: Derive VDIPortReadBuf from PipeItem") VDIPortReadBuf was derived
> from PipeItem (now RedPipeItem) mostly to reuse reference counting
> (and possibly free). However this was propagated to RedCharDevice
> where read_one_msg_from_device and send_msg_to_client use RedPipeItems
> but leaded to imagine that RedPipeItems could be inserted in multiple
> client pipes which is basically would cause a spice_assert.
> As said in https://lists.freedesktop.org/archives/spice-devel/2016-May/029204.
> html
> this does not cause the crash as multiple clients is not supported
> however I think this as a bad design. Simply we should have a class
> to represent a data buffer with:
> - reference counting;
> - embedded destroy.
> This would simplify CharDevice and agent code and avoid the wrong
> assumption that caused d232e92794c74a326d1e48355d257f24a6d497c2.
> This will probably rollback some code and introduce back a RedPipeItem
> however I think all this was and will be the right way. "Was" as all these
> changes allowed some callbacks and many code to be removed or simplified.
> "Will" as it's the shortest path to remove regression (which IMHO should
> be short as possible).
>
> Frediano
>
Can you explain what regression you're talking about here?
Jonathon
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