Struct IdleProbeBackoff 

struct IdleProbeBackoff {
    cooldown_remaining: u64,
    consecutive_failures: u32,
}

Per-tick gate that throttles UserIdle::get_time() once it starts failing. While the probe succeeds we attempt it every tick; once it fails we skip an exponentially-growing number of ticks before retrying, so a windowing system that rejects the call (X11 without MIT-SCREEN-SAVER, a denied Wayland portal) doesn’t get hammered — and re-spammed — once per second.

Fields

cooldown_remaining: u64

Ticks left to skip before the next probe. 0 means “probe now”.

consecutive_failures: u32

Failures since the last success, driving the back-off growth.

Implementations

impl IdleProbeBackoff

fn new() -> Self

fn should_probe(&mut self) -> bool

Call once per tick. Returns true if the run loop should probe this tick; otherwise consumes one tick of the cooldown and returns false.

fn record_success(&mut self)

Record a successful probe: clear the failure streak and resume probing every tick.

fn record_failure(&mut self) -> u64

Record a failed probe and schedule the next attempt via exponential back-off. Returns the cooldown (seconds) for the log line.