Struct ScyllaRingBufferDOTS<T>.ReverseEnumerator

Value-type reverse enumerator for ScyllaRingBufferDOTS<T> that enables allocation-free, Burst-compatible iteration in newest-to-oldest order.

Inherited Members

ValueType.Equals(object)

ValueType.GetHashCode()

ValueType.ToString()

object.Equals(object, object)

object.GetType()

object.ReferenceEquals(object, object)

Namespace: Scylla.Core.Structures

Assembly: ScyllaCore.dll

Syntax

public struct ScyllaRingBufferDOTS<T>.ReverseEnumerator

Remarks

The enumerator captures the ring buffer's _tail, _count, and capacity at construction time. The newest element's physical index is _tail - 1 (with wraparound). Subsequent elements are obtained by decrementing the physical index by one at each step, with modulo correction applied when the result is negative.

Modifications to the ring buffer's logical state after the enumerator is created are not reflected in the iteration bounds, though the underlying native memory is shared.

Constructors

ReverseEnumerator(ScyllaRingBufferDOTS<T>)

Initializes a new reverse enumerator for the specified ring buffer, capturing a snapshot of the buffer's current tail, count, and capacity.

Declaration

public ReverseEnumerator(ScyllaRingBufferDOTS<T> ringBuffer)

Parameters

Type	Name	Description
ScyllaRingBufferDOTS<T>	ringBuffer	The ring buffer to enumerate in reverse.

Properties

Current

Gets the element at the current enumerator position.

Declaration

public T Current { get; }

Property Value

Type	Description
T	The element at the current reverse-order step. Undefined before the first call to MoveNext() and after MoveNext() returns false.

Methods

MoveNext()

Advances the enumerator to the next element in newest-to-oldest order and updates Current.

Declaration

public bool MoveNext()

Returns

Type	Description
bool	true if the enumerator was successfully advanced to the next element; false if the enumerator has passed the end of the reverse iteration.

Remarks

The physical index is computed as _tail - 1 - _index. When this value is negative, _capacity is added to wrap around to the end of the backing array. The enumerator visits exactly _countSnapshot elements.