Struct Heartbeat 

pub struct Heartbeat {
    pub every: Duration,
    pub dead: Duration,
    pub wedge: Duration,
}

The socket’s keepalive: how often a connection is asked to prove it is still there, how long it may stay silent before it is reaped, and how long it may go without a completed write before a watchdog outside its future ends it.

The socket carried none, so a peer that vanished without closing - a slept machine, a wedged process, a network that went away - left its viewer attached and any companion waiting, with neither side told the other was gone. A test shortens the set rather than waiting the shipping one out.

The wedge bound is the task’s, not the peer’s. A beat in the connection’s own select! cannot fire while the connection is parked in an await, so dead covers a silent peer only while the loop still runs; wedge covers a loop that stopped running, and it counts completed writes rather than loop turns because one turn can issue several writes.

Fields

every: Duration

dead: Duration

wedge: Duration

Trait Implementations

impl Clone for Heartbeat

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Heartbeat

impl Debug for Heartbeat

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

Formats the value using the given formatter.

impl Default for Heartbeat

fn default() -> Self

Returns the “default value” for a type.