CronNext

Struct CronNext 

Source
pub struct CronNext<Z: TimeZone> {
    pub schedule: Schedule,
    /* private fields */
}
Expand description

cron jobs

§Examples

let expression = "* * * * * ? *";
let mut cron = CronNext::new(expression, chrono::Local)?;
while let Some(time) = cron.next().await {
   println!("time: {:?}, {:?}", time, chrono::Local::now());
}
println!("break");

Fields§

§schedule: Schedule

Implementations§

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impl<Z> CronNext<Z>
where Z: TimeZone,

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pub fn new(expression: &str, timezone: Z) -> Result<Self>

create a cron

§Examples
let expression = "* * * * * ? *";
let mut cron = CronNext::new(expression, chrono::Local)?;
while let Some(time) = cron.next().await {
   println!("time: {:?}, {:?}", time, chrono::Local::now());
}
println!("break");
Source

pub async fn next(&mut self) -> Option<DateTime<Z>>

the next job, ticker is 1 seconds

§Examples
let expression = "* * * * * ? *";
let mut cron = CronNext::new(expression, chrono::Local)?;
while let Some(time) = cron.next().await {
   println!("time: {:?}, {:?}", time, chrono::Local::now());
}
println!("break");

Auto Trait Implementations§

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impl<Z> Freeze for CronNext<Z>
where Z: Freeze, <Z as TimeZone>::Offset: Freeze,

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impl<Z> RefUnwindSafe for CronNext<Z>

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impl<Z> Send for CronNext<Z>
where Z: Send, <Z as TimeZone>::Offset: Send,

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impl<Z> Sync for CronNext<Z>
where Z: Sync, <Z as TimeZone>::Offset: Sync,

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impl<Z> Unpin for CronNext<Z>
where Z: Unpin, <Z as TimeZone>::Offset: Unpin,

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impl<Z> UnwindSafe for CronNext<Z>
where Z: UnwindSafe, <Z as TimeZone>::Offset: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.