Struct TeardownBackstop 

pub struct TeardownBackstop {
    armed_since: Option<Instant>,
}

Fields

armed_since: Option<Instant>

Some(t0) = armed since t0. Re-arming while armed keeps the ORIGINAL t0 — a second drain report means the host has been failing to exit since the first one, not that the clock restarts.

Implementations

impl TeardownBackstop

pub fn arm(&mut self, now: Instant) -> bool

Arm the machine. Returns true when this call newly armed it (callers log the transition); false when it was already armed (the original arm time is kept).

pub fn disarm(&mut self) -> bool

Disarm. Returns true when this call newly disarmed it.

pub fn should_teardown( &self, now: Instant, grace: Duration, consecutive_misses: u32, required_misses: u32, ) -> bool

The teardown decision: armed for longer than grace, AND the UI-thread prober has accumulated at least required_misses consecutive unanswered probes. Pure read — the caller executes.

Trait Implementations

impl Debug for TeardownBackstop

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TeardownBackstop

fn default() -> TeardownBackstop

Returns the “default value” for a type.