org.bukkit.craftbukkit.chunkio.ChunkIOExecutor Maven / Gradle / Ivy

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package org.bukkit.craftbukkit.chunkio;

import net.minecraft.server.Chunk;
import net.minecraft.server.ChunkProviderServer;
import net.minecraft.server.ChunkRegionLoader;
import net.minecraft.server.World;
import org.bukkit.craftbukkit.util.AsynchronousExecutor;

public class ChunkIOExecutor {
  static final int BASE_THREADS = 1;
  static final int PLAYERS_PER_THREAD = 50;

  private static final AsynchronousExecutor instance = new AsynchronousExecutor(new ChunkIOProvider(), BASE_THREADS);

  public static Chunk syncChunkLoad(World world, ChunkRegionLoader loader, ChunkProviderServer provider, int x, int z) {
    return instance.getSkipQueue(new QueuedChunk(x, z, loader, world, provider));
  }

  public static void queueChunkLoad(World world, ChunkRegionLoader loader, ChunkProviderServer provider, int x, int z, Runnable runnable) {
    instance.add(new QueuedChunk(x, z, loader, world, provider), runnable);
  }

  // Abuses the fact that hashCode and equals for QueuedChunk only use world and coords
  public static void dropQueuedChunkLoad(World world, int x, int z, Runnable runnable) {
    instance.drop(new QueuedChunk(x, z, null, world, null), runnable);
  }

  public static void adjustPoolSize(int players) {
    int size = Math.max(BASE_THREADS, (int) Math.ceil(players / PLAYERS_PER_THREAD));
    instance.setActiveThreads(size);
  }

  public static void tick() {
    instance.finishActive();
  }
}