Open-source multiplayer game server compatible with the RuneScape client https://www.openrs2.org/
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openrs2/net/src/main/kotlin/org/openrs2/net/FutureExtensions.kt

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package org.openrs2.net
import io.netty.util.concurrent.Future
import java.util.concurrent.CompletableFuture
import kotlin.coroutines.resume
import kotlin.coroutines.resumeWithException
import kotlin.coroutines.suspendCoroutine
public suspend fun <V> Future<V>.awaitSuspend(): V {
if (isDone) {
if (isSuccess) {
return now
} else {
throw cause()
}
}
return suspendCoroutine { continuation ->
addListener {
if (isSuccess) {
continuation.resume(now)
} else {
continuation.resumeWithException(cause())
}
}
}
}
public fun <V> Future<V>.asCompletableFuture(): CompletableFuture<V> {
if (isDone) {
return if (isSuccess) {
CompletableFuture.completedFuture(now)
} else {
CompletableFuture.failedFuture(cause())
}
}
val future = CompletableFuture<V>()
addListener {
if (isSuccess) {
future.complete(now)
} else {
future.completeExceptionally(cause())
}
}
return future
}