- Fix some performances issues for softmodem

- Remove eventfd if task has only polling mode
- Created dummy thread to convert eventfd from RT thread to non RT threads
- Added eNB app to softmodem
- Set poll mode for itti dumper thread in softmodem
- Disable timers for softmodem

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4545 818b1a75-f10b-46b9-bf7c-635c3b92a50f

common/utils/itti/intertask_interface.h

@@ -38,6 +38,10 @@
 # include <sys/epoll.h>
 #endif
 
+#ifdef RTAI
+# include <rtai_sem.h>
+#endif
+
 #ifndef INTERTASK_INTERFACE_H_
 #define INTERTASK_INTERFACE_H_
 
@@ -91,6 +95,7 @@ typedef enum task_priorities_e {
 
 typedef struct task_info_s {
     thread_id_t thread;
+    task_id_t   parent_task;
     task_priorities_t priority;
     unsigned int queue_size;
     /* Printable name */