Struct Heartbeat 

pub struct Heartbeat {
    pub last_seen_unix: u64,
    pub lapse_after_secs: u64,
}

A liveness heartbeat — the principal periodically signals “still here”. Its lapse (no update for lapse_after_secs) is one of the trigger conditions; touching it (the person is alive) is the reversibility.

Fields

last_seen_unix: u64

lapse_after_secs: u64

Grace period (seconds): with no update for at least this long, the liveness signal is lapsed.

Implementations

impl Heartbeat

pub fn new(last_seen_unix: u64, lapse_after_secs: u64) -> Self

pub fn is_lapsed(&self, now_unix: u64) -> bool

Has the liveness signal lapsed at now?

pub fn touch(&mut self, now_unix: u64)

The principal is alive — reset the signal (reversibility).

Trait Implementations

impl Clone for Heartbeat

fn clone(&self) -> Heartbeat

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Heartbeat

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Heartbeat

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Heartbeat

fn eq(&self, other: &Heartbeat) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Heartbeat

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Heartbeat

impl StructuralPartialEq for Heartbeat