FlexRAN: free memory of statistics reports

openair2/ENB_APP/CONTROL_MODULES/MAC/flexran_agent_mac.c

@@ -646,14 +646,9 @@ int flexran_agent_mac_stats_reply(mid_t mod_id,
   return -1;
 }
 
-int flexran_agent_mac_destroy_stats_reply(Protocol__FlexranMessage *msg) {
-  //TODO: Need to deallocate memory for the stats reply message
-  if(msg->msg_case != PROTOCOL__FLEXRAN_MESSAGE__MSG_STATS_REPLY_MSG)
-    goto error;
-  free(msg->stats_reply_msg->header);
+int flexran_agent_mac_destroy_stats_reply(Protocol__FlexStatsReply *reply) {
   int i, j, k;
 
-  Protocol__FlexStatsReply *reply = msg->stats_reply_msg;
   Protocol__FlexDlCqiReport *dl_report;
   Protocol__FlexUlCqiReport *ul_report;
   Protocol__FlexPagingBufferReport *paging_report;
@@ -744,20 +739,23 @@ int flexran_agent_mac_destroy_stats_reply(Protocol__FlexranMessage *msg) {
 	free(ul_report->pucch_dbm[j]);
       }
       free(ul_report->pucch_dbm);
+      free(ul_report);
+    }
+    if (reply->ue_report[i]->flags & PROTOCOL__FLEX_UE_STATS_TYPE__FLUST_MAC_STATS) {
+      for (j = 0; j < reply->ue_report[i]->mac_stats->n_mac_sdus_dl; j++)
+        free(reply->ue_report[i]->mac_stats->mac_sdus_dl[j]);
+      free(reply->ue_report[i]->mac_stats->mac_sdus_dl);
+      free(reply->ue_report[i]->mac_stats);
     }
-    free(reply->ue_report[i]);
   }
-  free(reply->ue_report);
 
   // Free memory for all Cell reports
   for (i = 0; i < reply->n_cell_report; i++) {
+    if (reply->cell_report[i]->flags & PROTOCOL__FLEX_CELL_STATS_TYPE__FLCST_NOISE_INTERFERENCE) {
       free(reply->cell_report[i]->noise_inter_report);
-    free(reply->cell_report[i]);
     }
-  free(reply->cell_report);
+  }
 
-  free(reply);
-  free(msg);
   return 0;
 
  error:

openair2/ENB_APP/CONTROL_MODULES/MAC/flexran_agent_mac.h

@@ -53,7 +53,7 @@ int flexran_agent_mac_destroy_sf_trigger(Protocol__FlexranMessage *msg);
 
 /* Statistics reply protocol message constructor and destructor */
 int flexran_agent_mac_stats_reply(mid_t mod_id, const report_config_t *report_config, Protocol__FlexUeStatsReport **ue_report, Protocol__FlexCellStatsReport **cell_report);
-int flexran_agent_mac_destroy_stats_reply(Protocol__FlexranMessage *msg);
+int flexran_agent_mac_destroy_stats_reply(Protocol__FlexStatsReply *reply);
 
 /* DL MAC scheduling decision protocol message constructor (empty command) and destructor */ 
 int flexran_agent_mac_create_empty_dl_config(mid_t mod_id, Protocol__FlexranMessage **msg);

openair2/ENB_APP/CONTROL_MODULES/PDCP/flexran_agent_pdcp.c

@@ -136,6 +136,14 @@ int flexran_agent_pdcp_stats_reply(mid_t mod_id,
   return -1;
 }
 
+int flexran_agent_pdcp_destroy_stats_reply(Protocol__FlexStatsReply *reply)
+{
+  for (int i = 0; i < reply->n_ue_report; ++i) {
+    if (reply->ue_report[i]->pdcp_stats)
+      free(reply->ue_report[i]->pdcp_stats);
+  }
+  return 0;
+}
 
 
 int flexran_agent_register_pdcp_xface(mid_t mod_id)

openair2/ENB_APP/CONTROL_MODULES/PDCP/flexran_agent_pdcp.h

@@ -51,6 +51,7 @@ int flexran_agent_pdcp_stats_reply(mid_t mod_id,
           const report_config_t *report_config,
            Protocol__FlexUeStatsReport **ue_report,
            Protocol__FlexCellStatsReport **cell_report);
+int flexran_agent_pdcp_destroy_stats_reply(Protocol__FlexStatsReply *reply);
 
 /* Get the stats from RAN API and aggregate them per USER*/
 void flexran_agent_pdcp_aggregate_stats(const mid_t mod_id,

openair2/ENB_APP/CONTROL_MODULES/RRC/flexran_agent_rrc.c

@@ -493,7 +493,7 @@ int flexran_agent_rrc_stats_reply(mid_t mod_id,
 
   for (int i = 0; i < report_config->nr_ue; i++){
 
-      if (ue_report[i]->rrc_measurements->neigh_meas != NULL){
+      if (ue_report[i]->rrc_measurements && ue_report[i]->rrc_measurements->neigh_meas != NULL){
           for (int j = 0; j < ue_report[i]->rrc_measurements->neigh_meas->n_eutra_meas; j++){
 
              free(ue_report[i]->rrc_measurements->neigh_meas->eutra_meas[j]);
@@ -510,6 +510,22 @@ int flexran_agent_rrc_stats_reply(mid_t mod_id,
   return -1;
 }
 
+int flexran_agent_rrc_destroy_stats_reply(Protocol__FlexStatsReply *reply)
+{
+  for (int i = 0; i < reply->n_ue_report; i++){
+    if (reply->ue_report[i]->rrc_measurements && reply->ue_report[i]->rrc_measurements->neigh_meas){
+      for (int j = 0; j < reply->ue_report[i]->rrc_measurements->neigh_meas->n_eutra_meas; j++){
+        free(reply->ue_report[i]->rrc_measurements->neigh_meas->eutra_meas[j]->meas_result);
+        free(reply->ue_report[i]->rrc_measurements->neigh_meas->eutra_meas[j]);
+      }
+      free(reply->ue_report[i]->rrc_measurements->neigh_meas->eutra_meas);
+      free(reply->ue_report[i]->rrc_measurements->neigh_meas);
+      free(reply->ue_report[i]->rrc_measurements);
+    }
+  }
+  return 0;
+}
+
 void flexran_agent_fill_rrc_ue_config(mid_t mod_id, rnti_t rnti,
     Protocol__FlexUeConfig *ue_conf)
 {

openair2/ENB_APP/CONTROL_MODULES/RRC/flexran_agent_rrc.h

@@ -58,7 +58,7 @@ void flexran_trigger_rrc_measurements (mid_t mod_id, MeasResults_t *);
 
 /* Statistics reply protocol message constructor and destructor */
 int flexran_agent_rrc_stats_reply(mid_t mod_id, const report_config_t *report_config, Protocol__FlexUeStatsReport **ue_report, Protocol__FlexCellStatsReport **cell_report);
-int flexran_agent_rrc_destroy_stats_reply(Protocol__FlexranMessage *msg);
+int flexran_agent_rrc_destroy_stats_reply(Protocol__FlexStatsReply *reply);
 
 /* Fill the RRC part of a ue_config message */
 void flexran_agent_fill_rrc_ue_config(mid_t mod_id, rnti_t rnti,

openair2/ENB_APP/flexran_agent_handler.c

@@ -113,7 +113,7 @@ Protocol__FlexranMessage* flexran_agent_handle_message (mid_t mod_id,
   err_code = ((*agent_messages_callback[decoded_message->msg_case-1][decoded_message->msg_dir-1])(mod_id, (void *) decoded_message, &reply_message));
   if ( err_code < 0 ){
     goto error;
-  } else if (err_code == 1) { //If err_code > 1, we do not want to dispose the message yet
+  } else if (err_code == 0) { //If err_code > 1, we do not want to dispose the message yet
     protocol__flexran_message__free_unpacked(decoded_message, NULL);
   }
   return reply_message;
@@ -653,14 +653,16 @@ int flexran_agent_destroy_stats_reply(Protocol__FlexranMessage *msg)
     return -1;
   }
 
-  flexran_agent_mac_destroy_stats_reply((Protocol__FlexranMessage *)msg->stats_reply_msg);
-  // TODO implement rrc_destroy_stats_reply()
-  //flexran_agent_rrc_destroy_stats_reply(msg->stats_reply_msg);
-  // TODO implement pdcp_destroy_stats_reply()
-  //flexran_agent_pdcp_destroy_stats_reply(msg->stats_reply_msg);
-  free(msg->stats_reply_msg->header);
+  flexran_agent_mac_destroy_stats_reply(msg->stats_reply_msg);
+  flexran_agent_rrc_destroy_stats_reply(msg->stats_reply_msg);
+  flexran_agent_pdcp_destroy_stats_reply(msg->stats_reply_msg);
+  for (int i = 0; i < msg->stats_reply_msg->n_cell_report; ++i)
+    free(msg->stats_reply_msg->cell_report[i]);
+  for (int i = 0; i < msg->stats_reply_msg->n_ue_report; ++i)
+    free(msg->stats_reply_msg->ue_report[i]);
   free(msg->stats_reply_msg->cell_report);
   free(msg->stats_reply_msg->ue_report);
+  free(msg->stats_reply_msg->header);
   free(msg->stats_reply_msg);
   free(msg);
   return 0;