Refactored data buffering. Updated websocket example to have 2 message roundtrips.

examples/websocket_html_root/index.html

@@ -2,6 +2,11 @@
 <meta charset="utf-8" />  
 <title>WebSocket Test</title>  
 <script language="javascript" type="text/javascript">
+
+  // This javascript code creates a websocket to the URI "/foo",
+  // sends a message to it, waits for the reply, and sends an "exit" message.
+  // Server must terminate the conversation after receiving "exit" message.
+
   var writeToScreen = function(message) {
     var div = document.createElement('div');
     div.innerHTML = message;
@@ -22,7 +27,7 @@
     websocket.onmessage = function(ev) {
       writeToScreen('<span style="color: blue;">RESPONSE: ' + ev.data +
                     ' </span>');
-      websocket.close();
+      websocket.send('exit');
     };
     websocket.onerror = function(ev) {
       writeToScreen('<span style="color: red; ">ERROR: </span> ' + ev.data);