nDPId-test: Reworked I/O handling to prevent some endless loop scenarios. Fixed a race condition in the memory wrapper as well.

* nDPId: Instead of sending too long JSON strings, log an error and some parts.

Signed-off-by: Toni Uhlig <matzeton@googlemail.com>

nDPIsrvd.c

@@ -1452,8 +1452,8 @@ static int mainloop(int epollfd)
         }
     }
 
-    close(signalfd);
     free_remotes(epollfd);
+    close(signalfd);
 
     return 0;
 }