zio.internal.RingBufferPow2.scala Maven / Gradle / Ivy
/*
* Copyright 2018-2024 John A. De Goes and the ZIO Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package zio.internal
import zio.stacktracer.TracingImplicits.disableAutoTrace
private[zio] final class RingBufferPow2[A](val requestedCapacity: Int)
extends RingBuffer[A](RingBuffer.nextPow2(requestedCapacity)) {
protected def posToIdx(pos: Long, capacity: Int): Int =
(pos & (capacity - 1).toLong).toInt
}
private[zio] object RingBufferPow2 {
def apply[A](requestedCapacity: Int): RingBufferPow2[A] = {
// NOTE: Do not use `assert` as the compiler removes it in releases
require(requestedCapacity > 0)
new RingBufferPow2(requestedCapacity)
}
}