SRSUE: Set SCell configuration is unlocking (#1544)

srsue/src/stack/rrc/rrc.cc

@@ -881,11 +881,18 @@ bool rrc::con_reconfig(rrc_conn_recfg_s* reconfig)
     }
   }
 
-  apply_scell_config(reconfig_r8);
+  rrc_conn_recfg_r8_ies_s reconfig_r8_ = *reconfig_r8;
+  task_sched.enqueue_background_task([this, reconfig_r8_](uint32_t worker_id) mutable {
+    // Apply configurations without blocking stack
+    apply_scell_config(&reconfig_r8_);
+
+    // notify back RRC
+    task_sched.defer_task([this, reconfig_r8_]() {
+      const rrc_conn_recfg_r8_ies_s* reconfig_r8 = &reconfig_r8_;
 
       if (!measurements->parse_meas_config(
               reconfig_r8, reestablishment_successful, connection_reest.get()->get_source_earfcn())) {
-    return false;
+        return;
       }
 
       send_rrc_con_reconfig_complete();
@@ -899,9 +906,12 @@ bool rrc::con_reconfig(rrc_conn_recfg_s* reconfig)
           nas->write_pdu(RB_ID_SRB1, std::move(nas_sdu));
         } else {
           rrc_log->error("Fatal Error: Couldn't allocate PDU in handle_rrc_con_reconfig().\n");
-      return false;
+          return;
         }
       }
+    });
+  });
+
   return true;
 }
 

srsue/test/upper/rrc_meas_test.cc

@@ -212,6 +212,7 @@ public:
     dl_dcch_msg.msg.c1().rrc_conn_recfg().crit_exts.c1().rrc_conn_recfg_r8() = rrc_conn_recfg;
     pdcptest->expecting_reconf_complete                                      = true;
     send_dcch_msg(dl_dcch_msg);
+    stack->task_sched.run_pending_tasks();
     pdcptest->expecting_reconf_complete = false;
 
     return !pdcptest->get_error() && pdcptest->received_reconf_complete;