On Tue, 29 Dec 2020, Shakil Shaikh via Nut-upsuser wrote:

I'm looking into the best way to handle the ups status that gets returned by 
NUT. I've had a brief look at the source and it appears that this status is
actually a composite of flags, some of which cannot co-exist.

In particular I have a UPS that returns both OL and OL TRIM, which seem like 
reasonable statuses, but encode multiple states. A monitoring client has to
know that OL TRIM implies online.

I assume that not all combinations of flags exist, but I also understand that 
the combinations that do are defined by the drivers. To that end it becomes
difficult to enumerate them.

Are clients therefore supposed to list all possibilities, or split on space to 
get the flags back?

Thoughts appreciated

Why not let a program like upsmon do this for you? Then all you have to do is say in configuration file upsmon.conf what is to be done for the key events.

Roger

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