Added a command line option "-K file_name" to save ITTI logs directly.

Created "RRC_MAC_BCCH_DATA_REQ" message.
Separated L2L1 sub task by eNB/UE to separate messages handling in PDCP and MAC.
Added ITTI messages poll in MAC sub tasks.

pre-ci ok.

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4300 818b1a75-f10b-46b9-bf7c-635c3b92a50f

common/utils/itti/intertask_interface.h

@@ -69,7 +69,7 @@ typedef struct message_info_s {
     /* Message payload size */
     MessageHeaderSize size;
     /* Printable name */
-    char    *name;
+    const char * const name;
 } message_info_t;
 
 enum task_priorities {
@@ -137,12 +137,12 @@ void itti_terminate_tasks(task_id_t task_id);
 /** \brief Return the printable string associated with the message
  * \param message_id Id of the message
  **/
-char *itti_get_message_name(MessagesIds message_id);
+const char *itti_get_message_name(MessagesIds message_id);
 
 /** \brief Return the printable string associated with a task id
  * \param thread_id Id of the task
  **/
-char *itti_get_task_name(task_id_t task_id);
+const char *itti_get_task_name(task_id_t task_id);
 
 /** \brief Alloc and memset(0) a new itti message.
  * \param origin_task_id Task ID of the sending task