Willy Tarreau d209c87142 MINOR: freq_ctr: add the missing next_event_delay_period()
There was still no function to compute a wait time for periods, let's
implement it on top of freq_ctr_total() as we'll soon need it for the
per-second one. The divide here is applied on the frequency so that it
will be replaced with a reciprocal multiply when constant.
2021-04-11 11:11:03 +02:00
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