polars_utils::fixedringbuffer

Struct FixedRingBuffer

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pub struct FixedRingBuffer<T> { /* private fields */ }
Expand description

A ring-buffer with a size determined at creation-time

This makes it perfectly suited for buffers that produce and consume at different speeds.

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impl<T> FixedRingBuffer<T>

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pub fn new(capacity: usize) -> Self

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pub const fn len(&self) -> usize

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pub const fn capacity(&self) -> usize

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pub const fn remaining_capacity(&self) -> usize

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pub const fn is_empty(&self) -> bool

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pub const fn is_full(&self) -> bool

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pub fn as_slices(&self) -> (&[T], &[T])

Get a reference to all elements in the form of two slices.

These are in the listed in the order of being pushed into the buffer.

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pub fn pop_front(&mut self) -> Option<T>

Pop an item at the front of the FixedRingBuffer

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pub fn push(&mut self, value: T) -> Option<()>

Push an item into the FixedRingBuffer

Returns None if there is no more space

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impl<T: Copy> FixedRingBuffer<T>

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pub fn fill_repeat(&mut self, value: T, num: usize) -> usize

Add at most num items of value into the FixedRingBuffer

This returns the amount of items actually added.

Trait Implementations§

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impl<T> Drop for FixedRingBuffer<T>

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<T> Freeze for FixedRingBuffer<T>

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impl<T> RefUnwindSafe for FixedRingBuffer<T>
where T: RefUnwindSafe,

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impl<T> !Send for FixedRingBuffer<T>

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impl<T> !Sync for FixedRingBuffer<T>

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impl<T> Unpin for FixedRingBuffer<T>

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impl<T> UnwindSafe for FixedRingBuffer<T>
where T: RefUnwindSafe,

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> 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> 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, 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.