104 lines
2.7 KiB
Java
104 lines
2.7 KiB
Java
package net.minecraft.util.thread;
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import com.google.common.collect.Queues;
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import java.util.Locale;
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import java.util.Queue;
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import java.util.concurrent.atomic.AtomicInteger;
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import javax.annotation.Nullable;
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public interface StrictQueue<T extends Runnable> {
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@Nullable
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Runnable pop();
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boolean push(T p_365336_);
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boolean isEmpty();
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int size();
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public static final class FixedPriorityQueue implements StrictQueue<StrictQueue.RunnableWithPriority> {
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private final Queue<Runnable>[] queues;
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private final AtomicInteger size = new AtomicInteger();
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public FixedPriorityQueue(int p_18773_) {
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this.queues = new Queue[p_18773_];
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for (int i = 0; i < p_18773_; i++) {
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this.queues[i] = Queues.newConcurrentLinkedQueue();
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}
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}
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@Nullable
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@Override
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public Runnable pop() {
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for (Queue<Runnable> queue : this.queues) {
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Runnable runnable = queue.poll();
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if (runnable != null) {
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this.size.decrementAndGet();
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return runnable;
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}
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}
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return null;
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}
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public boolean push(StrictQueue.RunnableWithPriority p_361706_) {
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int i = p_361706_.priority;
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if (i < this.queues.length && i >= 0) {
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this.queues[i].add(p_361706_);
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this.size.incrementAndGet();
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return true;
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} else {
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throw new IndexOutOfBoundsException(
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String.format(Locale.ROOT, "Priority %d not supported. Expected range [0-%d]", i, this.queues.length - 1)
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);
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}
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}
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@Override
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public boolean isEmpty() {
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return this.size.get() == 0;
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}
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@Override
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public int size() {
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return this.size.get();
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}
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}
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public static final class QueueStrictQueue implements StrictQueue<Runnable> {
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private final Queue<Runnable> queue;
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public QueueStrictQueue(Queue<Runnable> p_18792_) {
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this.queue = p_18792_;
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}
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@Nullable
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@Override
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public Runnable pop() {
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return this.queue.poll();
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}
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@Override
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public boolean push(Runnable p_368428_) {
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return this.queue.add(p_368428_);
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}
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@Override
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public boolean isEmpty() {
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return this.queue.isEmpty();
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}
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@Override
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public int size() {
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return this.queue.size();
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}
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}
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public record RunnableWithPriority(int priority, Runnable task) implements Runnable {
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@Override
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public void run() {
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this.task.run();
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}
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}
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} |