Waterfall/BungeeCord-Patches/0023-Use-a-worker-and-a-boss-event-loop-group.patch

From 54a03d0d14c69cdc40bbf9e07a75643f0725864a Mon Sep 17 00:00:00 2001
From: kamcio96 <k.nadworski@icloud.com>
Date: Mon, 14 Mar 2016 16:07:20 -0700
Subject: [PATCH] Use a worker and a boss event loop group.

Merges the rest of https://github.com/SpigotMC/BungeeCord/pull/1706 by @kamcio96 along with b8845c4edbae46bb66f6adda338330a1d4032057

This is proper practice for netty.

diff --git a/proxy/src/main/java/net/md_5/bungee/BungeeCord.java b/proxy/src/main/java/net/md_5/bungee/BungeeCord.java
index fde98e27..40f28a12 100644
--- a/proxy/src/main/java/net/md_5/bungee/BungeeCord.java
+++ b/proxy/src/main/java/net/md_5/bungee/BungeeCord.java
@@ -117,7 +117,7 @@ public class BungeeCord extends ProxyServer
      */
     private ResourceBundle baseBundle;
     private ResourceBundle customBundle;
-    public EventLoopGroup eventLoops;
+    public EventLoopGroup bossEventLoopGroup, workerEventLoopGroup;
     /**
      * locations.yml save thread.
      */
@@ -255,7 +255,8 @@ public class BungeeCord extends ProxyServer
             ResourceLeakDetector.setLevel( ResourceLeakDetector.Level.DISABLED ); // Eats performance
         }
 
-        eventLoops = PipelineUtils.newEventLoopGroup( 0, new ThreadFactoryBuilder().setNameFormat( "Netty IO Thread #%1$d" ).build() );
+        bossEventLoopGroup = PipelineUtils.newEventLoopGroup( 0, new ThreadFactoryBuilder().setNameFormat( "Netty Boss IO Thread #%1$d" ).build() );
+        workerEventLoopGroup = PipelineUtils.newEventLoopGroup( 0, new ThreadFactoryBuilder().setNameFormat( "Netty Worker IO Thread #%1$d" ).build() );
 
         File moduleDirectory = new File( "modules" );
         moduleManager.load( this, moduleDirectory );
@@ -328,7 +329,7 @@ public class BungeeCord extends ProxyServer
                     .childOption( ChannelOption.WRITE_BUFFER_LOW_WATER_MARK, 1024 * 1024 * 1 )
                     .childAttr( PipelineUtils.LISTENER, info )
                     .childHandler( PipelineUtils.SERVER_CHILD )
-                    .group( eventLoops )
+                    .group( bossEventLoopGroup, workerEventLoopGroup )
                     .localAddress( info.getHost() )
                     .bind().addListener( listener );
 
@@ -349,7 +350,7 @@ public class BungeeCord extends ProxyServer
                         }
                     }
                 };
-                new RemoteQuery( this, info ).start( PipelineUtils.getDatagramChannel(), new InetSocketAddress( info.getHost().getAddress(), info.getQueryPort() ), eventLoops, bindListener );
+                new RemoteQuery( this, info ).start( PipelineUtils.getDatagramChannel(), new InetSocketAddress( info.getHost().getAddress(), info.getQueryPort() ), workerEventLoopGroup, bindListener );
             }
         }
     }
@@ -440,12 +441,14 @@ public class BungeeCord extends ProxyServer
                 }
 
                 getLogger().info( "Closing IO threads" );
-                eventLoops.shutdownGracefully();
-                try
-                {
-                    eventLoops.awaitTermination( Long.MAX_VALUE, TimeUnit.NANOSECONDS );
-                } catch ( InterruptedException ex )
-                {
+                bossEventLoopGroup.shutdownGracefully();
+                workerEventLoopGroup.shutdownGracefully();
+                while (true) {
+                    try {
+                        bossEventLoopGroup.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS);
+                        workerEventLoopGroup.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS);
+                        break;
+                    } catch (InterruptedException ignored) {}
                 }
 
                 getLogger().info( "Thank you and goodbye" );
diff --git a/proxy/src/main/java/net/md_5/bungee/BungeeServerInfo.java b/proxy/src/main/java/net/md_5/bungee/BungeeServerInfo.java
index 9756c09c..648cd273 100644
--- a/proxy/src/main/java/net/md_5/bungee/BungeeServerInfo.java
+++ b/proxy/src/main/java/net/md_5/bungee/BungeeServerInfo.java
@@ -145,7 +145,7 @@ public class BungeeServerInfo implements ServerInfo
         };
         new Bootstrap()
                 .channel( PipelineUtils.getChannel() )
-                .group( BungeeCord.getInstance().eventLoops )
+                .group( BungeeCord.getInstance().workerEventLoopGroup )
                 .handler( PipelineUtils.BASE )
                 .option( ChannelOption.CONNECT_TIMEOUT_MILLIS, 5000 ) // TODO: Configurable
                 .remoteAddress( getAddress() )
-- 
2.16.1