Create a TServerEventHandler interface in TServer

Summary: Such that users can supply an event handler to a server that will be used to signal various events that take place inside the server core.

Reviewed By: dreiss

Test Plan: Rebuilt all servers, work by default

Other Notes: Partially submitted and also reviewed by Dave Simpson at Powerset


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665371 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/cpp/src/server/TThreadedServer.h b/lib/cpp/src/server/TThreadedServer.h
index 4fe775a..28d3549 100644
--- a/lib/cpp/src/server/TThreadedServer.h
+++ b/lib/cpp/src/server/TThreadedServer.h
@@ -14,7 +14,7 @@
 
 #include <boost/shared_ptr.hpp>
 
-namespace facebook { namespace thrift { namespace server { 
+namespace facebook { namespace thrift { namespace server {
 
 using facebook::thrift::TProcessor;
 using facebook::thrift::transport::TServerTransport;
@@ -26,7 +26,7 @@
 
  public:
   class Task;
-  
+
   TThreadedServer(boost::shared_ptr<TProcessor> processor,
                   boost::shared_ptr<TServerTransport> serverTransport,
                   boost::shared_ptr<TTransportFactory> transportFactory,