Module watcher 

Available on crate features serve and triggers only.

The Watcher trait + the supervised polling loop. A watcher never dies on a transient error: it records health, backs off, and retries until shutdown.

Constants

MAX_BACKOFF

Backoff ceiling so a persistently-failing watcher still retries periodically.

UNHEALTHY_THRESHOLD

Consecutive poll failures before a watcher is reported unhealthy on /readyz.

Traits

Watcher

One pollable watcher (object_arrival / queue_depth). Webhook is push, not polled, so it does not implement this.

Functions

backoff

Exponential backoff doubling from base (the poll interval) to MAX_BACKOFF.

run_supervised

Run a watcher until shutdown fires. Never returns an error (logs instead).