[Bug 24645] New: Try harder to reinvoke the same Handler well-known name

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=24645

           Summary: Try harder to reinvoke the same Handler well-known name
           Product: Telepathy
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: medium
         Component: mission-control
        AssignedTo: telepathy-bugs at lists.freedesktop.org
        ReportedBy: simon.mcvittie at collabora.co.uk
        Depends on: 24120


When reinvoking a Handler for EnsureChannels, as noted on Bug #24120, MC can
easily pick a different well-known name (and hence object path) within the same
unique name.

> There are two ways that the new logic could pick the wrong head from such a
> hydra:
> 
> * The handler has put up an extra head that matches the channel better; that

(or just as well, and happens to be sorted first)

> new head catches the channel, instead of it going to the less specific head
> (this would happen if the fake Empathy in dispatcher/capture-bundle.py had a
> channel redispatched to it)
> 
> * The handler previously had an extra head that matched the channel better, but
> it has cut off that head (I can't think of a real-world use case for this); due
> to the fallback behaviour you propose, your logic and mine are effectively
> equivalent here


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