Waterfall/BungeeCord-Patches/0046-Don-t-use-a-bytebuf-for-packet-decoding.patch
Shane Freeder 69d0c4010d Updated Upstream (BungeeCord)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

BungeeCord Changes:
af10f82d Apply and enforce import ordering rules
3f01748d Minecraft 1.14-pre5 support
2019-04-23 09:09:26 +01:00

72 lines
2.8 KiB
Diff

From 5c4d4e11b2329b221394f7b216c749edc00c57bf Mon Sep 17 00:00:00 2001
From: creeper123123321 <creeper123123321@gmail.com>
Date: Thu, 17 Jan 2019 03:25:59 +0000
Subject: [PATCH] Don't use a bytebuf for packet decoding
diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/Varint21FrameDecoder.java b/protocol/src/main/java/net/md_5/bungee/protocol/Varint21FrameDecoder.java
index 98a54601..8de4d9be 100644
--- a/protocol/src/main/java/net/md_5/bungee/protocol/Varint21FrameDecoder.java
+++ b/protocol/src/main/java/net/md_5/bungee/protocol/Varint21FrameDecoder.java
@@ -24,8 +24,7 @@ public class Varint21FrameDecoder extends ByteToMessageDecoder
{
in.markReaderIndex();
- final byte[] buf = new byte[ 3 ];
- for ( int i = 0; i < buf.length; i++ )
+ for ( int i = 0; i < 3; i++ ) // Waterfall
{
if ( !in.isReadable() )
{
@@ -33,10 +32,13 @@ public class Varint21FrameDecoder extends ByteToMessageDecoder
return;
}
- buf[i] = in.readByte();
- if ( buf[i] >= 0 )
+ // Waterfall start
+ byte read = in.readByte();
+ if ( read >= 0 )
{
- int length = DefinedPacket.readVarInt( Unpooled.wrappedBuffer( buf ) );
+ in.resetReaderIndex();
+ int length = DefinedPacket.readVarInt( in );
+ // Waterfall end
if ( length == 0 && !allowEmptyPackets) // Waterfall
{
throw new CorruptedFrameException( "Empty Packet!" );
@@ -46,26 +48,11 @@ public class Varint21FrameDecoder extends ByteToMessageDecoder
{
in.resetReaderIndex();
return;
- } else
- {
- if ( in.hasMemoryAddress() )
- {
- out.add( in.slice( in.readerIndex(), length ).retain() );
- in.skipBytes( length );
- } else
- {
- if ( !DIRECT_WARNING )
- {
- DIRECT_WARNING = true;
- System.out.println( "Netty is not using direct IO buffers." );
- }
-
- // See https://github.com/SpigotMC/BungeeCord/issues/1717
- ByteBuf dst = ctx.alloc().directBuffer( length );
- in.readBytes( dst );
- out.add( dst );
- }
+ // Waterfall start
+ } else {
+ out.add(in.readRetainedSlice(length));
return;
+ // Waterfall end
}
}
}
--
2.21.0