Solve concurrency issue when setting up SCell measurement

srsue/src/phy/phy.cc

@@ -249,6 +249,9 @@ void phy::configure_prach_params()
 
 void phy::set_cells_to_meas(uint32_t earfcn, const std::set<uint32_t>& pci)
 {
+  // As the SCell configuration is performed asynchronously through the cmd_worker, append the command adding the
+  // measurements to avoid a concurrency issue
+  cmd_worker.add_cmd([this, earfcn, pci]() {
     // Check if the EARFCN matches with serving cell
     uint32_t pcell_earfcn = 0;
     sfsync.get_current_cell(nullptr, &pcell_earfcn);
@@ -280,11 +283,13 @@ void phy::set_cells_to_meas(uint32_t earfcn, const std::set<uint32_t>& pci)
       }
 
       // Configure a the empty carrier as it was CA
+      logger_phy.info("Setting new SCell measurement cc_idx=%d, earfcn=%d, pci=%d...", cc_empty, earfcn, cell.id);
       set_scell(cell, cc_empty, earfcn);
     }
 
     // Finally, set the serving cell measure
     sfsync.set_cells_to_meas(earfcn, pci);
+  });
 }
 
 void phy::meas_stop()