[ErrMsg][Fix] real-time dirdyn mbs_error call

MBsysC/mbs_common/mbs_module/mbs_dirdyn.c

@@ -324,7 +324,7 @@ int mbs_dirdyn_init(MbsDirdyn* dd, MbsData* mbs_data)
         if (err < 0)
         {
             mbs_msg("\t >Real-time> error during activation !\n");
-            mbs_msg("[%d] in mbs_dirdyn_init !! \n", err);
+            mbs_msg("[%d] in mbs_dirdyn_init, shutting down the process !! \n", err);
             return err;
         }
     }
@@ -333,7 +333,7 @@ int mbs_dirdyn_init(MbsDirdyn* dd, MbsData* mbs_data)
     {
         err = _MBS_ERR_INIT;
         mbs_msg("\t >Real-time> To use the real-time features (mbs_dirdyn->options->realtime activated), set the CMake flag 'FLAG_REAL_TIME' to ON !\n");
-        mbs_msg("[%d] in mbs_dirdyn_init !! \n", err);
+        mbs_msg("[%d] in mbs_dirdyn_init, shutting down the process !! \n", err);
         return err;
     }
 #endif
@@ -545,7 +545,7 @@ int mbs_dirdyn_init(MbsDirdyn* dd, MbsData* mbs_data)
                 free(bufElemNb);
 
                 mbs_msg("\t >Real-time> Error: real-time features must be activated to set 'save_visu' to 1 ! \n");
-                mbs_msg("[%d] in mbs_dirdyn_init !! \n",  _MBS_ERR_INIT);
+                mbs_msg("[%d] in mbs_dirdyn_init, shutting down the process !! \n",  _MBS_ERR_INIT);
                 return _MBS_ERR_INIT;
             }
 
@@ -562,7 +562,7 @@ int mbs_dirdyn_init(MbsDirdyn* dd, MbsData* mbs_data)
                 free(bufElemNb);
 
                 mbs_msg("\t >Real-time> Error: flag_visu must be set to 1 to set 'save_value' to 1 ! \n");
-                mbs_msg("[%d] in mbs_dirdyn_init !! \n", _MBS_ERR_INIT);
+                mbs_msg("[%d] in mbs_dirdyn_init, shutting down the process !! \n", _MBS_ERR_INIT);
                 return _MBS_ERR_INIT;
             }
 
@@ -586,7 +586,7 @@ int mbs_dirdyn_init(MbsDirdyn* dd, MbsData* mbs_data)
                     free(bufElemNb);
 
                     mbs_msg("\t >Dirdyn> [REAL-TIME] Error during buffer visu initialization num %d! \n", i);
-                    mbs_msg("[%d] in mbs_dirdyn_init !! \n", _MBS_ERR_MOD_SPEC_11);
+                    mbs_msg("[%d] in mbs_dirdyn_init, shutting down the process !! \n", _MBS_ERR_MOD_SPEC_11);
                     return _MBS_ERR_MOD_SPEC_11;
                 }
             }
@@ -755,7 +755,7 @@ int mbs_dirdyn_finish(MbsDirdyn* dd, MbsData* mbs_data) {
 #ifdef REAL_TIME
     realtime = (Simu_realtime*)mbs_data->realtime;
 
-    if (dd->options->realtime)
+    if (dd->options->realtime && !realtime)
     {
         err = mbs_realtime_finish((Simu_realtime*)mbs_data->realtime);
         if (err < 0)