[Ovmsdev] Current Work in progress - where I'm at for those interested

[Michael Geddes]

Hi all,

I'm pushing up my current progress on a reworking of the polling loop. I'm
not doing a pull request of this as it absolutely needs to be incorporated
in manageable chunks, and I understand that requires time that the devs
currently don't have.

In broad strokes, this:

*  Reduces the amount of word done in the Scheduler thread, which under
routeros should be kept as lite as possible. This work is done on the
(beefed up) Polling thread.
*  Allows keeping separate OBD state for each polling bus (while
maintaining a single thread).
*  Better compartmentalises the poller operations.
* Allows once-off poller actions that don't require blocking the thread.
(Which particularly if this is the Scheduler thread - the one that provides
the 1s ticks- is not recommended)
* Effectively Extends the number of poll 'states' available without
changing the base structure.

https://github.com/frogonwheels/Open-Vehicle-Monitoring-System-3/tree/poller-changes-all

I'm still very much interested in feedback and in making this available.

In a practical sense, this is what I run on my OVMS and in particular for
the OBD2ECU it is working very nicely!

//.ichael Geddes
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