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package org.bukkit.craftbukkit.chunkio;
import net.minecraft.server.Chunk;
import net.minecraft.server.ChunkRegionLoader;
import net.minecraft.server.NBTTagCompound;
import org.bukkit.Server;
import org.bukkit.craftbukkit.util.AsynchronousExecutor;
import org.bukkit.craftbukkit.util.LongHash;
import java.util.concurrent.atomic.AtomicInteger;
class ChunkIOProvider implements AsynchronousExecutor.CallBackProvider<QueuedChunk, Chunk, Runnable, RuntimeException> {
private final AtomicInteger threadNumber = new AtomicInteger(1);
// async stuff
public Chunk callStage1(QueuedChunk queuedChunk) throws RuntimeException {
ChunkRegionLoader loader = queuedChunk.loader;
Object[] data = loader.loadChunk(queuedChunk.world, queuedChunk.x, queuedChunk.z);
if (data != null) {
queuedChunk.compound = (NBTTagCompound) data[1];
return (Chunk) data[0];
}
return null;
}
// sync stuff
public void callStage2(QueuedChunk queuedChunk, Chunk chunk) throws RuntimeException {
if (chunk == null) {
// If the chunk loading failed just do it synchronously (may generate)
queuedChunk.provider.originalGetChunkAt(queuedChunk.x, queuedChunk.z);
return;
}
queuedChunk.loader.loadEntities(chunk, queuedChunk.compound.getCompound("Level"), queuedChunk.world);
chunk.setLastSaved(queuedChunk.provider.world.getTime());
queuedChunk.provider.chunks.put(LongHash.toLong(queuedChunk.x, queuedChunk.z), chunk);
chunk.addEntities();
if (queuedChunk.provider.chunkProvider != null) {
queuedChunk.provider.chunkProvider.recreateStructures(chunk, queuedChunk.x, queuedChunk.z);
}
Server server = queuedChunk.provider.world.getServer();
if (server != null) {
server.getPluginManager().callEvent(new org.bukkit.event.world.ChunkLoadEvent(chunk.bukkitChunk, false));
}
// Update neighbor counts
for (int x = -2; x < 3; x++) {
for (int z = -2; z < 3; z++) {
if (x == 0 && z == 0) {
continue;
}
Chunk neighbor = queuedChunk.provider.getChunkIfLoaded(chunk.locX + x, chunk.locZ + z);
if (neighbor != null) {
neighbor.setNeighborLoaded(-x, -z);
chunk.setNeighborLoaded(x, z);
}
}
}
chunk.loadNearby(queuedChunk.provider, queuedChunk.provider, queuedChunk.x, queuedChunk.z);
}
public void callStage3(QueuedChunk queuedChunk, Chunk chunk, Runnable runnable) throws RuntimeException {
runnable.run();
}
public Thread newThread(Runnable runnable) {
Thread thread = new Thread(runnable, "Chunk I/O Executor Thread-" + threadNumber.getAndIncrement());
thread.setDaemon(true);
return thread;
}
}
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