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5b6dfb3463
This work is 100% unfinished. I am pushing it up so that we as a team can work on this update. Do not try to use this branch. You will fail.
54 lines
1.9 KiB
Diff
54 lines
1.9 KiB
Diff
From 2d8c5299e664122b08b135fa309307b150d551ee Mon Sep 17 00:00:00 2001
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From: Antony Riley <antony@cyberiantiger.org>
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Date: Tue, 29 Mar 2016 06:56:23 +0300
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Subject: [PATCH] Reduce IO ops opening a new region file.
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diff --git a/src/main/java/net/minecraft/server/RegionFile.java b/src/main/java/net/minecraft/server/RegionFile.java
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index 3f9aa5923..4acb6df5d 100644
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--- a/src/main/java/net/minecraft/server/RegionFile.java
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+++ b/src/main/java/net/minecraft/server/RegionFile.java
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@@ -8,9 +8,12 @@ import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.DataInputStream;
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import java.io.DataOutputStream;
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+import java.io.EOFException;
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import java.io.File;
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import java.io.IOException;
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import java.io.RandomAccessFile;
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+import java.nio.ByteBuffer;
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+import java.nio.IntBuffer;
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import java.util.List;
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import java.util.zip.DeflaterOutputStream;
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import java.util.zip.GZIPInputStream;
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@@ -67,8 +70,16 @@ public class RegionFile {
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int k;
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+ // Paper Start
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+ ByteBuffer header = ByteBuffer.allocate(8192);
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+ while (header.hasRemaining()) {
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+ if (this.c.getChannel().read(header) == -1) throw new EOFException();
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+ }
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+ header.clear();
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+ IntBuffer headerAsInts = header.asIntBuffer();
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+ // Paper End
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for (j = 0; j < 1024; ++j) {
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- k = this.c.readInt();
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+ k = headerAsInts.get(); // Paper
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this.d[j] = k;
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if (k != 0 && (k >> 8) + (k & 255) <= this.f.size()) {
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for (int l = 0; l < (k & 255); ++l) {
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@@ -78,7 +89,7 @@ public class RegionFile {
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}
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for (j = 0; j < 1024; ++j) {
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- k = this.c.readInt();
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+ k = headerAsInts.get(); // Paper
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this.e[j] = k;
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}
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} catch (IOException ioexception) {
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--
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2.18.0
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