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replace synchronisation with Striped access semaphore locks

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This commit is contained in:
dordsor21
2020-05-18 16:52:33 +01:00
parent 31cc5e0b60
commit fd3604beba
3 changed files with 51 additions and 11 deletions
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21
worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_15/BukkitAdapter_1_15.java
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@@ -9,6 +9,7 @@ import com.boydti.fawe.object.collection.BitArray;
import com.boydti.fawe.util.MathMan;
import com.boydti.fawe.util.ReflectionUtils;
import com.boydti.fawe.util.TaskManager;
import com.google.common.util.concurrent.Striped;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.world.block.BlockState;
import com.sk89q.worldedit.world.block.BlockTypesCache;
@@ -18,6 +19,7 @@ import java.lang.invoke.MethodHandles;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.Semaphore;
import java.util.concurrent.locks.ReentrantLock;
import net.jpountz.util.UnsafeUtils;
import net.minecraft.server.v1_15_R1.*;
@@ -52,6 +54,8 @@ public final class BukkitAdapter_1_15 extends NMSAdapter {
private static final Field fieldLock;
private static final Striped<Semaphore> stripe = Striped.lazyWeakSemaphore(5, 1);
static {
try {
fieldSize = DataPaletteBlock.class.getDeclaredField("i");
@@ -122,10 +126,15 @@ public final class BukkitAdapter_1_15 extends NMSAdapter {
}
}
public static Chunk ensureLoaded(net.minecraft.server.v1_15_R1.World nmsWorld, int X, int Z) {
Chunk nmsChunk;
synchronized (nmsWorld) {
public static Chunk ensureLoaded(World nmsWorld, int X, int Z) {
Semaphore lock = stripe.get(nmsWorld.hashCode());
Chunk nmsChunk = null;
try {
lock.acquire();
nmsChunk = nmsWorld.getChunkIfLoaded(X, Z);
} catch (InterruptedException ignored) {
} finally {
lock.release();
}
if (nmsChunk != null) {
return nmsChunk;
@@ -134,7 +143,8 @@ public final class BukkitAdapter_1_15 extends NMSAdapter {
return nmsWorld.getChunkAt(X, Z);
}
if (PaperLib.isPaper()) {
synchronized (nmsWorld) {
try {
lock.acquire();
CraftWorld craftWorld = nmsWorld.getWorld();
CompletableFuture<org.bukkit.Chunk> future = craftWorld.getChunkAtAsync(X, Z, true);
try {
@@ -143,6 +153,9 @@ public final class BukkitAdapter_1_15 extends NMSAdapter {
} catch (Throwable e) {
e.printStackTrace();
}
} catch (InterruptedException ignored) {
} finally {
lock.release();
}
}
// TODO optimize