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42 lines
749 B
Go
42 lines
749 B
Go
package common
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import (
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"m7s.live/engine/v4/util"
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)
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type RingBuffer[T any] struct {
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*util.Ring[T] `json:"-" yaml:"-"`
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Size int
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MoveCount uint32
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LastValue *T
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}
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func (rb *RingBuffer[T]) Init(n int) *RingBuffer[T] {
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if rb == nil {
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rb = new(RingBuffer[T])
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}
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rb.Ring = util.NewRing[T](n)
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rb.Size = n
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rb.LastValue = &rb.Value
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return rb
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}
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func (rb *RingBuffer[T]) MoveNext() *T {
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rb.LastValue = &rb.Value
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rb.Ring = rb.Next()
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rb.MoveCount++
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return &rb.Value
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}
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func (rb *RingBuffer[T]) Glow(size int) (newItem *util.Ring[T]) {
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newItem = rb.Link(util.NewRing[T](size))
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rb.Size += size
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return
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}
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func (rb *RingBuffer[T]) Reduce(size int) (newItem *util.Ring[T]) {
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newItem = rb.Unlink(size)
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rb.Size -= size
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return
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}
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