Struct WaitReporter 

pub struct WaitReporter<'sink> { /* private fields */ }

What: Prints a wait’s notices to a sink at the pace of its ticker. Why: Wait loops that poll (reservations, child processes, settlement locks) share one printing rule: the line is built only when it is due, so a poll that is not due costs a clock read and nothing else.

In TS you’d write (pseudocode):

const reporter = new WaitReporter(cadence, stderr); reporter.poll((waitedMs) => line(waitedMs));

Implementations

impl<'sink> WaitReporter<'sink>

pub fn start(cadence: Cadence, sink: &'sink mut dyn Write) -> Self

A reporter whose clock starts now and whose first notice follows the cadence’s grace.

pub fn poll(&mut self, line: impl FnOnce(Duration, bool) -> String) -> bool

Print the line built by line when a notice is due; line gets how long the wait has lasted and whether an earlier notice of this wait was printed. Whether one was printed.