Explicitly handle listen sockets and connection sockets differently in Linux and Mac OS eventhandler

runtime/bin/eventhandler.h

Index: runtime/bin/eventhandler.h
diff --git a/runtime/bin/eventhandler.h b/runtime/bin/eventhandler.h
index 381ad8ff673c3bb61346e98cec4eaeacad16e9c0..b75face4518ecc51ea9fed424af248e8cd8ec818 100644
--- a/runtime/bin/eventhandler.h
+++ b/runtime/bin/eventhandler.h
@@ -23,10 +23,11 @@
  */
 enum Message {
   kInEvent = 0,
-  kOutEvent,
-  kErrorEvent,
-  kCloseEvent,
-  kCloseCommand,
+  kOutEvent = 1,
+  kErrorEvent = 2,
+  kCloseEvent = 3,
+  kCloseCommand = 8,
+  kListenSocket = 16,

[Mads Ager (google), 2011/10/28 08:33:23]

The naming here confuses me. 4 Events, 1 Command and something that is neither?
Can we streamline that? Or maybe the enum shouldn't be called Message? 

[Søren Gjesse, 2011/10/28 09:24:19]

So this is the bits that we send to the event loop when stuff changes for a file
descriptor. I will rename to MessageFlags and provide a better comment.

 };