From 883af62c92a30206974f4699cc01c3ab5cac3850 Mon Sep 17 00:00:00 2001
From: Norman Maurer <norman@apache.org>
Date: Fri, 31 Aug 2012 00:36:12 +0200
Subject: [PATCH] Correctly set wakeup.compareAndSet(..) before wakeup the
 Selector. See #578

---
 .../netty/channel/socket/nio/AbstractNioWorker.java   | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/main/java/org/jboss/netty/channel/socket/nio/AbstractNioWorker.java b/src/main/java/org/jboss/netty/channel/socket/nio/AbstractNioWorker.java
index 3ceb805f78..783a5a1cb9 100644
--- a/src/main/java/org/jboss/netty/channel/socket/nio/AbstractNioWorker.java
+++ b/src/main/java/org/jboss/netty/channel/socket/nio/AbstractNioWorker.java
@@ -398,11 +398,14 @@ abstract class AbstractNioWorker implements Worker {
 
                 assert added;
                 if (added) {
-                    // wake up the selector to speed things
-                    Selector selector = this.selector;
-                    if (selector != null) {
-                        selector.wakeup();
+                    if (wakenUp.compareAndSet(false, true))  {
+                        // wake up the selector to speed things
+                        Selector selector = this.selector;
+                        if (selector != null) {
+                            selector.wakeup();
+                        }
                     }
+
                 }
             }