| /* |
| * Copyright 2016-2021 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> |