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/*
* Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
*/
package kotlinx.coroutines.internal
/**
* Special kind of list intended to be used as collection of subscribers in `ArrayBroadcastChannel`
* On JVM it's CopyOnWriteList and on JS it's MutableList.
*
* Note that this alias is intentionally not named as CopyOnWriteList to avoid accidental misusage outside of ArrayBroadcastChannel
*/
internal typealias SubscribersList<E> = MutableList<E>
internal expect fun <E> subscriberList(): SubscribersList<E>
internal expect class ReentrantLock() {
fun tryLock(): Boolean
fun unlock(): Unit
}
internal expect inline fun <T> ReentrantLock.withLock(action: () -> T): T
internal expect fun <E> identitySet(expectedSize: Int): MutableSet<E>
@ExperimentalMultiplatform
@OptionalExpectation
internal expect annotation class SharedImmutable()
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