PandacubeFr/BungeeCord
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Preallocate compression output buffer to remove unnecessary resizing

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md_5
2025-01-27 20:08:58 +11:00
parent 0aa2871b26
commit 60a3bf082f
3 changed files with 15 additions and 3 deletions
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8
proxy/src/main/java/net/md_5/bungee/compress/PacketDecompressor.java
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@@ -7,10 +7,12 @@ import io.netty.handler.codec.MessageToMessageDecoder;
import java.util.List;
import net.md_5.bungee.jni.zlib.BungeeZlib;
import net.md_5.bungee.protocol.DefinedPacket;
import net.md_5.bungee.protocol.OverflowPacketException;
public class PacketDecompressor extends MessageToMessageDecoder<ByteBuf>
{
private static final int MAX_DECOMPRESSED_LEN = 1 << 23;
private final BungeeZlib zlib = CompressFactory.zlib.newInstance();
@Override
@@ -34,8 +36,12 @@ public class PacketDecompressor extends MessageToMessageDecoder<ByteBuf>
out.add( in.retain() );
} else
{
ByteBuf decompressed = ctx.alloc().directBuffer();
if ( size > MAX_DECOMPRESSED_LEN )
{
throw new OverflowPacketException( "Packet may not be larger than " + MAX_DECOMPRESSED_LEN + " bytes" );
}
ByteBuf decompressed = ctx.alloc().directBuffer( size, size );
try
{
zlib.process( in, decompressed );