Enum Schedule 

pub enum Schedule {
    Interval(Duration),
    Once(Instant),
    Cron {
        hour: Option<u8>,
        minute: Option<u8>,
        second: Option<u8>,
    },
}

Defines when a Job should fire.

Variants

Interval(Duration)

Fire every fixed duration after the previous run.

Once(Instant)

Fire exactly once at the specified Instant.

Cron

Fire at a specific wall-clock time. None fields are wildcards.

Fields

hour: Option<u8>

Hour of day (0–23), or None to match any hour.

minute: Option<u8>

Minute of hour (0–59), or None to match any minute.

second: Option<u8>

Second of minute (0–59), or None to match any second.

Implementations

impl Schedule

pub fn next_tick(&self, now: Instant) -> Instant

Compute the next fire Instant relative to now.

For Schedule::Cron, this performs wall-clock arithmetic using SystemTime to find the next second that matches all non-None fields.

Trait Implementations

impl Clone for Schedule

fn clone(&self) -> Schedule

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Schedule

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

Formats the value using the given formatter.