Enum Event 

pub enum Event<'a> {
    Started {
        id: &'a str,
        done: usize,
        total: usize,
    },
    Finished {
        result: &'a ProbeResult,
        done: usize,
        total: usize,
    },
}

What the caller is told as the run proceeds.

Both variants carry the running total so a progress bar can be drawn without the caller tracking state. total is an upper bound — several steps skip parts of themselves when the endpoint does not offer what they need — so a run legitimately finishes below it.

Variants

Started

A step is about to issue its requests. This is the one a UI wants: the gap before a slow step’s first result is where a progress display otherwise looks frozen.

Fields

id: &'a str

done: usize

total: usize

Finished

Fields

result: &'a ProbeResult

done: usize

total: usize