Struct MailCarrier 

pub struct MailCarrier;

The mailbox’s own delivery (D140): every message filed with a wake (by a filer that does not wait, such as a board’s dispatcher, or by a send to a hooked session) is handed to its session by the session’s own door, by the daemon that runs this watch loop. Mail for another machine is carried there through Teams (supercode teams mail), the only cross-machine leg, and filed with the same wake, so that machine’s watch loop delivers it. A failed attempt waits [FIRST_RETRY] doubling to [LAST_RETRY], kept in the wake itself, so a restarted watcher waits as the last one did. A wake expires only once it has failed WAKE_ATTEMPTS counted times and its first counted failure is older than its bound (LOCAL_WAKE_LIFETIME here, REMOTE_WAKE_LIFETIME for another machine): the message stays filed and unread, and the expiry is recorded in its mailbox (supercode message expired), which the board’s diagnostics read. Mail for a machine that is offline is not failing: it is offered again every [LAST_RETRY] until the machine links, and never expires for that.

Implementations

impl MailCarrier

pub fn new() -> Self

A carrier.

pub async fn tick(&mut self, homes: &HarnessHomes)

One pass over every mailbox holding a wake that is due.

Trait Implementations

impl Debug for MailCarrier

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

Formats the value using the given formatter.

impl Default for MailCarrier

fn default() -> Self

Returns the “default value” for a type.