Modify to use Mod_id = 0 in L2 FAPI simulator's eNB to avoid Segmentation Fault

targets/RT/USER/lte-enb.c

@@ -236,8 +236,13 @@ static inline int rxtx(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc, char *thread_nam
     if (nfapi_mode == 2){
       new_dlsch_ue_select_tbl_in_use = dlsch_ue_select_tbl_in_use;
       dlsch_ue_select_tbl_in_use = !dlsch_ue_select_tbl_in_use;
-      memcpy(&pre_scd_eNB_UE_stats,&RC.mac[ru->eNB_list[0]->Mod_id]->UE_list.eNB_UE_stats, sizeof(eNB_UE_STATS)*MAX_NUM_CCs*NUMBER_OF_UE_MAX);
-      memcpy(&pre_scd_activeUE, &RC.mac[ru->eNB_list[0]->Mod_id]->UE_list.active, sizeof(boolean_t)*NUMBER_OF_UE_MAX);
+
+// L2-emulator can work only one eNB.
+//      memcpy(&pre_scd_eNB_UE_stats,&RC.mac[ru->eNB_list[0]->Mod_id]->UE_list.eNB_UE_stats, sizeof(eNB_UE_STATS)*MAX_NUM_CCs*NUMBER_OF_UE_MAX);
+//      memcpy(&pre_scd_activeUE, &RC.mac[ru->eNB_list[0]->Mod_id]->UE_list.active, sizeof(boolean_t)*NUMBER_OF_UE_MAX);
+      memcpy(&pre_scd_eNB_UE_stats,&RC.mac[0]->UE_list.eNB_UE_stats, sizeof(eNB_UE_STATS)*MAX_NUM_CCs*NUMBER_OF_UE_MAX);
+      memcpy(&pre_scd_activeUE, &RC.mac[0]->UE_list.active, sizeof(boolean_t)*NUMBER_OF_UE_MAX);
+
       if (pthread_mutex_lock(&ru->proc.mutex_pre_scd)!= 0) {
           LOG_E( PHY, "[eNB] error locking proc mutex for eNB pre scd\n");
           exit_fun("error locking mutex_time");

targets/RT/USER/lte-ru.c

@@ -121,7 +121,7 @@ extern int emulate_rf;
 extern int numerology;
 extern clock_source_t clock_source;
 extern uint8_t dlsch_ue_select_tbl_in_use;
-
+extern uint8_t nfapi_mode;
 extern PARALLEL_CONF_t get_thread_parallel_conf(void);
 extern WORKER_CONF_t   get_thread_worker_conf(void);
 extern void  phy_init_RU(RU_t*);
@@ -1923,6 +1923,11 @@ void* pre_scd_thread( void* param ){
     int                     CC_id;
     int                     Mod_id;
     RU_t               *ru      = (RU_t*)param;
+
+    // L2-emulator can work only one eNB
+    if( nfapi_mode == 2)
+       Mod_id = 0;
+    else 
        Mod_id = ru->eNB_list[0]->Mod_id;
 
     frame = 0;