tree 093a48f1cc07391d460f4ab75eab82f59d3cdf9d
parent 7bf20caacca1030ca4b8d36e8e44ec5bdce5088f
author Willy Tarreau <w@1wt.eu> 1651591980 +0200
committer Willy Tarreau <w@1wt.eu> 1651853615 +0200
encoding latin1

CLEANUP: promex: make the applet use its own context

The prometheus applet used to map to the stats context since it was not
convenient to have one's own context, and to reuse the fields with its
own values and enums. The obj1 pointer was used both for proxies and
stick-tables; obj2 was used both for servers and listeners.

This change makes use of the generic command context allocation so that
the there's now a properly typed context for prometheus, defined in the
code itself and independent on the stats or appctx ones. For clarity,
the types are correctly set and there's one proxy, one table, one server
and one listener. Some could be compacted using unions but that's not
necessary since the context is reasonably compact. The stats' st_code
field was used as the object state so the new field name is obj_state.

An attempt was made to change the types to const for what us only visited
but some calls pass through the stats code to retrieve info and that code
uses non-const variables due to internal API limitations (read_freq_ctr()
being used and requiring variable). That could change in the future,
though.