org.geysermc.floodgate.core.addon.data

Class PacketBlocker

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

org.geysermc.floodgate.core.addon.data.PacketBlocker

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler

public class PacketBlocker
extends io.netty.channel.ChannelInboundHandlerAdapter

In Floodgate the PacketBlocker is used to temporarily prevent packets from being decoded. A similar system is used to prevent packets from being handled while Floodgate is processing the login. The old system blocked the thread which was processing the Floodgate login, but that doesn't only block the packets for that specific user, it's shared between multiple users causing them to lag or sometimes timeout.
The reason why we prevent packets from being handled is because keeping the packet order is important. That is also the reason why we prevent packets from being decoded during that time. The 'login start' packet for example can only be decoded after the handshake packet has been handled, because the server can only successfully decode the packet after the handshake packet caused the server to switch to the login state.

Nested Class Summary

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

io.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
PacketBlocker()

Method Summary

Modifier and Type	Method and Description
void	channelRead(io.netty.channel.ChannelHandlerContext ctx, Object msg)
void	disable()
void	enable()
boolean	enabled()
void	handlerAdded(io.netty.channel.ChannelHandlerContext ctx)

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelInactive, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerRemoved, isSharable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.netty.channel.ChannelHandler

handlerRemoved

Constructor Detail

PacketBlocker

public PacketBlocker()

Method Detail

enable

public void enable()

disable

public void disable()

enabled

public boolean enabled()

channelRead

public void channelRead(io.netty.channel.ChannelHandlerContext ctx,
                        Object msg)

Specified by:

channelRead in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelRead in class io.netty.channel.ChannelInboundHandlerAdapter

handlerAdded

public void handlerAdded(io.netty.channel.ChannelHandlerContext ctx)

Specified by:

handlerAdded in interface io.netty.channel.ChannelHandler

Overrides:

handlerAdded in class io.netty.channel.ChannelHandlerAdapter