add RRC metrics and remove extra methods to query RRC state

srsue/hdr/stack/rrc/rrc.h

@@ -25,6 +25,7 @@
 #include "pthread.h"
 
 #include "rrc_common.h"
+#include "rrc_metrics.h"
 #include "srslte/asn1/rrc_asn1_utils.h"
 #include "srslte/common/bcd_helpers.h"
 #include "srslte/common/block_queue.h"
@@ -300,7 +301,7 @@ public:
 
   void stop();
 
-  rrc_state_t get_state();
+  void get_metrics(rrc_metrics_t& m);
 
   // Timeout callback interface
   void timer_expired(uint32_t timeout_id);

srsue/hdr/stack/rrc/rrc_metrics.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2013-2019 Software Radio Systems Limited
+ *
+ * This file is part of srsLTE.
+ *
+ * srsLTE is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsLTE is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
+ *
+ */
+
+#ifndef SRSUE_RRC_METRICS_H
+#define SRSUE_RRC_METRICS_H
+
+#include "rrc_common.h"
+
+namespace srsue {
+
+struct rrc_metrics_t {
+  rrc_state_t state;
+};
+
+} // namespace srsue
+
+#endif // SRSUE_RRC_METRICS_H

srsue/hdr/stack/ue_stack_base.h

@@ -79,7 +79,6 @@ public:
   virtual void stop()             = 0;
   virtual bool switch_on()        = 0;
   virtual bool switch_off()       = 0;
-  virtual bool is_rrc_connected() = 0;
 
   // UE metrics interface
   virtual bool get_metrics(stack_metrics_t* metrics) = 0;

srsue/hdr/ue.h

@@ -98,7 +98,6 @@ public:
   void stop();
   bool switch_on();
   bool switch_off();
-  bool is_rrc_connected();
   void start_plot();
 
   // UE metrics interface

srsue/hdr/ue_metrics_interface.h

@@ -29,6 +29,7 @@
 #include "srslte/radio/radio_metrics.h"
 #include "srslte/upper/rlc_metrics.h"
 #include "stack/mac/mac_metrics.h"
+#include "stack/rrc/rrc_metrics.h"
 #include "stack/upper/gw_metrics.h"
 #include "stack/upper/nas_metrics.h"
 
@@ -38,6 +39,7 @@ typedef struct {
   mac_metrics_t         mac[SRSLTE_MAX_CARRIERS];
   srslte::rlc_metrics_t rlc;
   nas_metrics_t         nas;
+  rrc_metrics_t         rrc;
 } stack_metrics_t;
 
 typedef struct {
@@ -52,7 +54,6 @@ class ue_metrics_interface : public srslte::metrics_interface<ue_metrics_t>
 {
 public:
   virtual bool get_metrics(ue_metrics_t* m) = 0;
-  virtual bool is_rrc_connected()           = 0;
 };
 
 } // namespace srsue

srsue/src/metrics_csv.cc

@@ -131,7 +131,7 @@ void metrics_csv::set_metrics(ue_metrics_t &metrics, const uint32_t period_usec)
     file << float_to_string(metrics.rf.rf_o, 2);
     file << float_to_string(metrics.rf.rf_u, 2);
     file << float_to_string(metrics.rf.rf_l, 2);
-    file << (ue->is_rrc_connected() ? "1.0" : "0.0");
+    file << (metrics.stack.rrc.state == RRC_STATE_CONNECTED ? "1.0" : "0.0");
     file << "\n";
 
     n_reports++;

srsue/src/metrics_stdout.cc

@@ -63,7 +63,7 @@ void metrics_stdout::set_metrics(ue_metrics_t &metrics, const uint32_t period_us
   if(!do_print || ue == NULL)
     return;
 
-  if (!ue->is_rrc_connected()) {
+  if (metrics.stack.rrc.state != RRC_STATE_CONNECTED) {
     cout << "--- disconnected ---" << endl;
     return;
   }

srsue/src/stack/rrc/rrc.cc

@@ -192,18 +192,15 @@ void rrc::stop() {
   wait_thread_finish();
 }
 
-rrc_state_t rrc::get_state() {
+void rrc::get_metrics(rrc_metrics_t& m)
-  return state;
+{
+  m.state = state;
 }
 
 bool rrc::is_connected() {
   return (RRC_STATE_CONNECTED == state);
 }
 
-bool rrc::have_drb() {
-  return drb_up;
-}
-
 /*
  * Low priority thread to run functions that can not be executed from main thread
  */

srsue/src/stack/ue_stack_lte.cc

@@ -186,20 +186,11 @@ bool ue_stack_lte::switch_off()
 
 bool ue_stack_lte::get_metrics(stack_metrics_t* metrics)
 {
-  if (EMM_STATE_REGISTERED == nas.get_state()) {
-    if (RRC_STATE_CONNECTED == rrc.get_state()) {
   mac.get_metrics(metrics->mac);
   rlc.get_metrics(metrics->rlc);
   nas.get_metrics(&metrics->nas);
-      return true;
+  rrc.get_metrics(metrics->rrc);
-    }
+  return (metrics->nas.state == EMM_STATE_REGISTERED && metrics->rrc.state == RRC_STATE_CONNECTED);
-  }
-  return false;
-}
-
-bool ue_stack_lte::is_rrc_connected()
-{
-  return rrc.is_connected();
 }
 
 void ue_stack_lte::run_thread()

srsue/src/ue.cc

@@ -244,11 +244,6 @@ bool ue::switch_off()
   return stack->switch_off();
 }
 
-bool ue::is_rrc_connected()
-{
-  return stack->is_rrc_connected();
-}
-
 void ue::start_plot()
 {
   phy->start_plot();