Sure, renaming things isn't ever absolutely necessary. However the more accurate naming of the interface being an "Observer" if some additional implementations are to be non-reports, feels much cleaner. So we should at least rename the one in question. Not all of them at once...

And if a method is named "report_foo" then it would also need renaming to something like "on_foo".

On 16/09/16 14:51, Alan Griffiths wrote:
On 16/09/16 02:51, Christopher James Halse Rogers wrote:
On Thu, Sep 15, 2016 at 12:11 PM, Daniel van Vugt
<> wrote:
So actually... I now think it's OK providing the base class is named
*Observer. And only some implementations would be called *Report.

I would also be happy with this; various components take an Observer
(which provides a register-interested-party API), and Reports register
themselves as interested parties.

1. the user of the "Report" interface is the core code - which is simply
reporting something. The code reads "report->xxx()" which is clear.

2. we've had this name for years, without considering it a problem.

3. Some implementations of "Report" log, some don't - which is the
behaviour that was originally intended (and what we all want).

4. I *think* the current issue is simply that we want to add support for
multiple reports/observers so that code using Mir can get notifications
without disabling the supplied logging/lttng options. We have existing
generic "observer" code that can be used to composite reports.

In short, I agree that "Reports" are taking the "Observer" role from the
pattern language, but I think the more specific name is good here and I
don't follow why folks want the pain of a rename.

With regard to Chris's MP - I don't believe we want both a "Report" and
an "Observer" both doing the same job as a solution to /4/.

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