Added ITTI timer support for RTAI builds (timers must only be used from non RT tasks).

Blocked message sending to ended tasks.
Modified lte-softmodem to use ITTI signal handling.
Uniformized lte-softmodem and oaisim with ITTI handling.

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4607 818b1a75-f10b-46b9-bf7c-635c3b92a50f

common/utils/itti/timer.h

@@ -31,6 +31,8 @@
 #ifndef TIMER_H_
 #define TIMER_H_
 
+#include <signal.h>
+
 #define SIGTIMER SIGRTMIN
 
 typedef enum timer_type_s {
@@ -39,6 +41,8 @@ typedef enum timer_type_s {
     TIMER_TYPE_MAX,
 } timer_type_t;
 
+int timer_handle_signal(siginfo_t *info);
+
 /** \brief Request a new timer
  *  \param interval_sec timer interval in seconds
  *  \param interval_us  timer interval in micro seconds