A ringbox mailbox multi-threaded implementation.

Whilst I'm sort of proud of the 'word at a time', always contiguous and zero copy aspects of it... the important bit is the metadata.

All the optimization was really to allow me to record metadata around...

* When was a message posted?

* When did it start to be handled?

* When was it finished being handled?

* What was the correlation ID? (ie. the ultimate causal source of the events chain)

...and then extract this data into a sqlite DB and either query that directly or to create message sequence diagrams with the mscgen tool.

Why is this important?

Because I have lost count of the really hard, gnarly real time bugs I have solved using this tool.