zng_app::timer

Struct Timer

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pub struct Timer(/* private fields */);
Expand description

Represents a timer state in a TimerVar or interval handler.

This type uses interior mutability to communicate with the timer, the values provided by the methods can be changed anytime by the TimerVar owners without the variable updating.

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impl Timer

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pub fn stop(&self)

Permanently stops the timer.

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pub fn is_stopped(&self) -> bool

If the timer was stopped.

If true the timer var will not update again, this is permanent.

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pub fn interval(&self) -> Duration

The timer interval. Enabled variables update every time this interval elapses.

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pub fn set_interval(&self, new_interval: Duration)

Sets the interval.

Note that this method does not awake the app, so if this is called from outside the app thread it will only apply on the next app update.

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pub fn timestamp(&self) -> DInstant

Last update time, or the start time if the timer has not updated yet.

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pub fn deadline(&self) -> Deadline

The next deadline.

This is the timestamp plus the interval.

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pub fn is_paused(&self) -> bool

If the timer is not ticking, but can be started again.

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pub fn is_playing(&self) -> bool

If the timer is ticking.

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pub fn pause(&self)

Disable the timer, this causes the timer to stop ticking until play is called.

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pub fn play(&self, reset: bool)

Enable the timer, this causes it to start ticking again.

If reset is true the last timestamp is set to now.

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pub fn count(&self) -> usize

Count incremented by one every time the timer elapses.

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pub fn set_count(&self, count: usize)

Resets the count.

Trait Implementations§

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impl Clone for Timer

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fn clone(&self) -> Timer

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Timer

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

Formats the value using the given formatter. Read more
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impl PartialEq for Timer

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fn eq(&self, other: &Timer) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for Timer

Auto Trait Implementations§

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impl Freeze for Timer

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impl !RefUnwindSafe for Timer

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impl Send for Timer

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impl Sync for Timer

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impl Unpin for Timer

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impl !UnwindSafe for Timer

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> AnyVarValue for T
where T: VarValue,

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fn as_any(&self) -> &(dyn Any + 'static)

Access to dyn Any methods.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Access to mut dyn Any methods.
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fn clone_boxed(&self) -> Box<dyn AnyVarValue>

Clone the value.
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fn clone_boxed_var(&self) -> Box<dyn AnyVar>

Clone the value into a new boxed LocalVar<Self>.
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fn into_any(self: Box<T>) -> Box<dyn Any>

Access to Box<dyn Any> methods.
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fn eq_any(&self, other: &(dyn AnyVarValue + 'static)) -> bool

Gets if self equals other.
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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> IntoVar<T> for T
where T: VarValue,

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type Var = LocalVar<T>

Variable type that will wrap the T value. Read more
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fn into_var(self) -> <T as IntoVar<T>>::Var

Converts the source value into a var.
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fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> IntoValue<T> for T
where T: VarValue,

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impl<T> StateValue for T
where T: Any + Send + Sync,

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impl<T> VarValue for T
where T: Debug + Clone + PartialEq + Any + Send + Sync,