fixing some gnuradio-related warnings reported by gcc, so others can be spotted easier

src/algorithms/PVT/gnuradio_blocks/galileo_e1_pvt_cc.cc

@@ -307,7 +307,12 @@ int galileo_e1_pvt_cc::general_work (int noutput_items, gr_vector_int &ninput_it
         }
 
     consume_each(1); //one by one
-    return 0;
+    output_items.clear();  // removes a warning
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
+    return 1;
 }
 
 

src/algorithms/PVT/gnuradio_blocks/gps_l1_ca_pvt_cc.cc

@@ -344,7 +344,12 @@ int gps_l1_ca_pvt_cc::general_work (int noutput_items, gr_vector_int &ninput_ite
         }
 
     consume_each(1); //one by one
-    return noutput_items;
+    output_items.clear();  // removes a warning
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
+    return 1;
 }
 
 

src/algorithms/PVT/gnuradio_blocks/hybrid_pvt_cc.cc

@@ -370,7 +370,12 @@ int hybrid_pvt_cc::general_work (int noutput_items, gr_vector_int &ninput_items,
         }
 
     consume_each(1); //one by one
-    return noutput_items;
+    output_items.clear();  // removes a warning
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
+    return 1;
 }
 
 

src/algorithms/acquisition/gnuradio_blocks/galileo_e5a_noncoherent_iq_acquisition_caf_cc.cc

@@ -647,7 +647,7 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
                     // weighting_factor = 0;
                     // std::cout << "weighting_factor " << weighting_factor << std::endl;
                     // Initialize first iterations
-                    for (int doppler_index=0; doppler_index < CAF_bins_half; doppler_index++)
+                    for (int doppler_index = 0; doppler_index < CAF_bins_half; doppler_index++)
                         {
                             d_CAF_vector[doppler_index] = 0;
                             // volk_32f_accumulator_s32f_a(&d_CAF_vector[doppler_index], d_CAF_vector_I, CAF_bins_half+doppler_index+1);
@@ -656,7 +656,7 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
                                     d_CAF_vector[doppler_index] += d_CAF_vector_I[i] * (1 - weighting_factor * static_cast<unsigned int>((doppler_index - i)));
                                 }
                             // d_CAF_vector[doppler_index] /= CAF_bins_half+doppler_index+1;
-                            d_CAF_vector[doppler_index] /= 1 + CAF_bins_half+doppler_index - weighting_factor * CAF_bins_half * (CAF_bins_half + 1) / 2 - weighting_factor*doppler_index*(doppler_index+1)/2; // triangles = [n*(n+1)/2]
+                            d_CAF_vector[doppler_index] /= 1 + CAF_bins_half + doppler_index - weighting_factor * CAF_bins_half * (CAF_bins_half + 1) / 2 - weighting_factor * doppler_index * (doppler_index + 1) / 2; // triangles = [n*(n+1)/2]
                             if (d_both_signal_components)
                                 {
                                     accum[0] = 0;
@@ -671,21 +671,21 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
                                 }
                         }
                     // Body loop
-                    for (unsigned int doppler_index = CAF_bins_half;doppler_index<d_num_doppler_bins-CAF_bins_half;doppler_index++)
+                    for (unsigned int doppler_index = CAF_bins_half; doppler_index < d_num_doppler_bins - CAF_bins_half; doppler_index++)
                         {
                             d_CAF_vector[doppler_index] = 0;
-                            //				volk_32f_accumulator_s32f_a(&d_CAF_vector[doppler_index], &d_CAF_vector_I[doppler_index-CAF_bins_half], 2*CAF_bins_half+1);
+                            // volk_32f_accumulator_s32f_a(&d_CAF_vector[doppler_index], &d_CAF_vector_I[doppler_index-CAF_bins_half], 2*CAF_bins_half+1);
-                            for (int i = doppler_index-CAF_bins_half; i < doppler_index+CAF_bins_half + 1; i++)
+                            for (int i = doppler_index - CAF_bins_half; i < static_cast<int>(doppler_index + CAF_bins_half + 1); i++)
                                 {
-                                    d_CAF_vector[doppler_index] += d_CAF_vector_I[i] * (1-weighting_factor * static_cast<unsigned int>((doppler_index - i)));
+                                    d_CAF_vector[doppler_index] += d_CAF_vector_I[i] * (1 - weighting_factor * static_cast<unsigned int>((doppler_index - i)));
                                 }
-                            //				d_CAF_vector[doppler_index] /= 2*CAF_bins_half+1;
+                            // d_CAF_vector[doppler_index] /= 2*CAF_bins_half+1;
                             d_CAF_vector[doppler_index] /= 1 + 2 * CAF_bins_half - 2 * weighting_factor * CAF_bins_half * (CAF_bins_half + 1) / 2;
                             if (d_both_signal_components)
                                 {
                                     accum[0] = 0;
                                     // volk_32f_accumulator_s32f_a(&accum[0], &d_CAF_vector_Q[doppler_index-CAF_bins_half], 2*CAF_bins_half);
-                                    for (int i = doppler_index-CAF_bins_half; i < doppler_index + CAF_bins_half + 1; i++)
+                                    for (int i = doppler_index-CAF_bins_half; i < static_cast<int>(doppler_index + CAF_bins_half + 1); i++)
                                         {
                                             accum[0] += d_CAF_vector_Q[i] * (1 - weighting_factor * static_cast<unsigned int>((doppler_index - i)));
                                         }
@@ -695,11 +695,11 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
                                 }
                         }
                     // Final iterations
-                    for (int doppler_index = d_num_doppler_bins - CAF_bins_half; doppler_index < d_num_doppler_bins; doppler_index++)
+                    for (int doppler_index = d_num_doppler_bins - CAF_bins_half; doppler_index < static_cast<int>(d_num_doppler_bins); doppler_index++)
                         {
                             d_CAF_vector[doppler_index] = 0;
                             // volk_32f_accumulator_s32f_a(&d_CAF_vector[doppler_index], &d_CAF_vector_I[doppler_index-CAF_bins_half], CAF_bins_half + (d_num_doppler_bins-doppler_index));
-                            for (int i = doppler_index - CAF_bins_half; i < d_num_doppler_bins; i++)
+                            for (int i = doppler_index - CAF_bins_half; i < static_cast<int>(d_num_doppler_bins); i++)
                                 {
                                     d_CAF_vector[doppler_index] += d_CAF_vector_I[i] * (1 - weighting_factor * (abs(doppler_index - i)));
                                 }
@@ -709,7 +709,7 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
                                 {
                                     accum[0] = 0;
                                     // volk_32f_accumulator_s32f_a(&accum[0], &d_CAF_vector_Q[doppler_index-CAF_bins_half], CAF_bins_half + (d_num_doppler_bins-doppler_index));
-                                    for (int i = doppler_index-CAF_bins_half; i < d_num_doppler_bins; i++)
+                                    for (int i = doppler_index-CAF_bins_half; i < static_cast<int>(d_num_doppler_bins); i++)
                                         {
                                             accum[0] += d_CAF_vector_Q[i] * (1 - weighting_factor * (abs(doppler_index - i)));
                                         }
@@ -803,6 +803,7 @@ int galileo_e5a_noncoherentIQ_acquisition_caf_cc::general_work(int noutput_items
         }
     }
 
+    output_items.clear();  // removes a warning
     return noutput_items;
 }
 

src/algorithms/acquisition/gnuradio_blocks/galileo_pcps_8ms_acquisition_cc.cc

@@ -413,5 +413,6 @@ int galileo_pcps_8ms_acquisition_cc::general_work(int noutput_items,
         }
     }
 
+    output_items.clear();  // removes a warning
     return noutput_items;
 }

src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_cc.cc

@@ -265,10 +265,8 @@ int pcps_acquisition_cc::general_work(int noutput_items,
             const gr_complex *in = (const gr_complex *)input_items[0]; //Get the input samples pointer
 
             int effective_fft_size = ( d_bit_transition_flag ? d_fft_size/2 : d_fft_size );
-            size_t offset = ( d_bit_transition_flag ? effective_fft_size : 0 );
 
-            float fft_normalization_factor = static_cast<float>(d_fft_size)
+            float fft_normalization_factor = static_cast<float>(d_fft_size) * static_cast<float>(d_fft_size);
-                * static_cast<float>(d_fft_size);
 
             d_input_power = 0.0;
             d_mag = 0.0;
@@ -442,7 +440,6 @@ int pcps_acquisition_cc::general_work(int noutput_items,
 
             d_sample_counter += d_fft_size * ninput_items[0]; // sample counter
             consume_each(ninput_items[0]);
-
             acquisition_message = 2;
             d_channel_internal_queue->push(acquisition_message);
 
@@ -450,6 +447,7 @@ int pcps_acquisition_cc::general_work(int noutput_items,
         }
     }
 
+    output_items.clear();  // removes a warning
     return noutput_items;
 }
 

src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_fine_doppler_cc.cc

@@ -174,7 +174,10 @@ void pcps_acquisition_fine_doppler_cc::init()
 void pcps_acquisition_fine_doppler_cc::forecast (int noutput_items,
         gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = d_gnuradio_forecast_samples ; //set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = d_gnuradio_forecast_samples ; //set the required available samples in each call
+        }
 }
 
 
@@ -519,5 +522,6 @@ int pcps_acquisition_fine_doppler_cc::general_work(int noutput_items,
     //DLOG(INFO)<<"d_sample_counter="<<d_sample_counter<<std::endl;
     d_sample_counter += d_fft_size; // sample counter
     consume_each(d_fft_size);
+    output_items.clear();  // removes a warning
     return noutput_items;
 }

src/algorithms/acquisition/gnuradio_blocks/pcps_assisted_acquisition_cc.cc

@@ -173,7 +173,10 @@ void pcps_assisted_acquisition_cc::init()
 void pcps_assisted_acquisition_cc::forecast (int noutput_items,
         gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = d_gnuradio_forecast_samples ; //set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = d_gnuradio_forecast_samples ; //set the required available samples in each call
+        }
 }
 
 
@@ -482,5 +485,6 @@ int pcps_assisted_acquisition_cc::general_work(int noutput_items,
         break;
     }
 
+    output_items.clear();  // removes a warning
     return noutput_items;
 }

src/algorithms/acquisition/gnuradio_blocks/pcps_cccwsr_acquisition_cc.cc

@@ -438,5 +438,6 @@ int pcps_cccwsr_acquisition_cc::general_work(int noutput_items,
         }
     }
 
+    output_items.clear();  // removes a warning
     return noutput_items;
 }

src/algorithms/acquisition/gnuradio_blocks/pcps_multithread_acquisition_cc.cc

@@ -466,5 +466,6 @@ int pcps_multithread_acquisition_cc::general_work(int noutput_items,
 
     consume_each(ninput_items[0]);
 
+    output_items.clear();  // removes a warning
     return noutput_items;
 }

src/algorithms/acquisition/gnuradio_blocks/pcps_opencl_acquisition_cc.cc

@@ -821,5 +821,6 @@ int pcps_opencl_acquisition_cc::general_work(int noutput_items,
 
     consume_each(ninput_items[0]);
 
+    output_items.clear();  // removes a warning
     return noutput_items;
 }

src/algorithms/acquisition/gnuradio_blocks/pcps_quicksync_acquisition_cc.cc

@@ -577,6 +577,6 @@ int pcps_quicksync_acquisition_cc::general_work(int noutput_items,
             break;
         }
     }
-    //DLOG(INFO) << "END GENERAL WORK";
+    output_items.clear();  // removes a warning
     return noutput_items;
 }

src/algorithms/acquisition/gnuradio_blocks/pcps_tong_acquisition_cc.cc

@@ -432,5 +432,6 @@ int pcps_tong_acquisition_cc::general_work(int noutput_items,
         }
     }
 
+    output_items.clear();  // removes a warning
     return noutput_items;
 }

src/algorithms/observables/gnuradio_blocks/galileo_e1_observables_cc.cc

@@ -67,12 +67,12 @@ galileo_e1_observables_cc::galileo_e1_observables_cc(unsigned int nchannels, boo
     d_dump_filename = dump_filename;
     d_flag_averaging = flag_averaging;
 
-    for (int i=0;i<d_nchannels;i++)
+    for (unsigned int i = 0; i < d_nchannels; i++)
-    {
+        {
-		d_acc_carrier_phase_queue_rads.push_back(std::deque<double>(d_nchannels));
+            d_acc_carrier_phase_queue_rads.push_back(std::deque<double>(d_nchannels));
-		d_carrier_doppler_queue_hz.push_back(std::deque<double>(d_nchannels));
+            d_carrier_doppler_queue_hz.push_back(std::deque<double>(d_nchannels));
-		d_symbol_TOW_queue_s.push_back(std::deque<double>(d_nchannels));
+            d_symbol_TOW_queue_s.push_back(std::deque<double>(d_nchannels));
-    }
+        }
 
     // ############# ENABLE DATA FILE LOG #################
     if (d_dump == true)
@@ -125,6 +125,10 @@ int galileo_e1_observables_cc::general_work (int noutput_items, gr_vector_int &n
     Gnss_Synchro current_gnss_synchro[d_nchannels];
     std::map<int,Gnss_Synchro> current_gnss_synchro_map;
     std::map<int,Gnss_Synchro>::iterator gnss_synchro_iter;
+    if (d_nchannels != ninput_items.size())
+        {
+            LOG(WARNING) << "The Observables block is not well connected";
+        }
 
     /*
      * 1. Read the GNSS SYNCHRO objects from available channels
@@ -214,24 +218,25 @@ int galileo_e1_observables_cc::general_work (int noutput_items, gr_vector_int &n
 				if (d_symbol_TOW_queue_s[gnss_synchro_iter->second.Channel_ID].size()>=GPS_L1_CA_HISTORY_DEEP)
 				{
 					// compute interpolated observation values for Doppler and Accumulate carrier phase
-					symbol_TOW_vec_s=arma::vec(std::vector<double>(d_symbol_TOW_queue_s[gnss_synchro_iter->second.Channel_ID].begin(), d_symbol_TOW_queue_s[gnss_synchro_iter->second.Channel_ID].end()));
+					symbol_TOW_vec_s = arma::vec(std::vector<double>(d_symbol_TOW_queue_s[gnss_synchro_iter->second.Channel_ID].begin(), d_symbol_TOW_queue_s[gnss_synchro_iter->second.Channel_ID].end()));
-					acc_phase_vec_rads=arma::vec(std::vector<double>(d_acc_carrier_phase_queue_rads[gnss_synchro_iter->second.Channel_ID].begin(), d_acc_carrier_phase_queue_rads[gnss_synchro_iter->second.Channel_ID].end()));
+					acc_phase_vec_rads = arma::vec(std::vector<double>(d_acc_carrier_phase_queue_rads[gnss_synchro_iter->second.Channel_ID].begin(), d_acc_carrier_phase_queue_rads[gnss_synchro_iter->second.Channel_ID].end()));
-					dopper_vec_hz=arma::vec(std::vector<double>(d_carrier_doppler_queue_hz[gnss_synchro_iter->second.Channel_ID].begin(), d_carrier_doppler_queue_hz[gnss_synchro_iter->second.Channel_ID].end()));
+					dopper_vec_hz = arma::vec(std::vector<double>(d_carrier_doppler_queue_hz[gnss_synchro_iter->second.Channel_ID].begin(), d_carrier_doppler_queue_hz[gnss_synchro_iter->second.Channel_ID].end()));
-					desired_symbol_TOW[0]=symbol_TOW_vec_s[GPS_L1_CA_HISTORY_DEEP-1]+delta_rx_time_ms/1000.0;
+					desired_symbol_TOW[0] = symbol_TOW_vec_s[GPS_L1_CA_HISTORY_DEEP - 1] + delta_rx_time_ms / 1000.0;
 					// Curve fitting to cuadratic function
-					arma::mat A=arma::ones<arma::mat> (GPS_L1_CA_HISTORY_DEEP,2);
+					arma::mat A = arma::ones<arma::mat>(GPS_L1_CA_HISTORY_DEEP, 2);
-					A.col(1)=symbol_TOW_vec_s;
+					A.col(1) = symbol_TOW_vec_s;
 					//A.col(2)=symbol_TOW_vec_s % symbol_TOW_vec_s;
 					arma::mat coef_acc_phase(1,3);
-					coef_acc_phase=arma::pinv(A.t()*A)*A.t()*acc_phase_vec_rads;
+					arma::mat pinv_A = arma::pinv(A.t() * A) * A.t();
+					coef_acc_phase = pinv_A * acc_phase_vec_rads;
 					arma::mat coef_doppler(1,3);
-					coef_doppler=arma::pinv(A.t()*A)*A.t()*dopper_vec_hz;
+					coef_doppler = pinv_A * dopper_vec_hz;
 					arma::vec acc_phase_lin;
 					arma::vec carrier_doppler_lin;
-					acc_phase_lin=coef_acc_phase[0]+coef_acc_phase[1]*desired_symbol_TOW[0];//+coef_acc_phase[2]*desired_symbol_TOW[0]*desired_symbol_TOW[0];
+					acc_phase_lin = coef_acc_phase[0] + coef_acc_phase[1] * desired_symbol_TOW[0];//+coef_acc_phase[2]*desired_symbol_TOW[0]*desired_symbol_TOW[0];
-					carrier_doppler_lin=coef_doppler[0]+coef_doppler[1]*desired_symbol_TOW[0];//+coef_doppler[2]*desired_symbol_TOW[0]*desired_symbol_TOW[0];
+					carrier_doppler_lin = coef_doppler[0] + coef_doppler[1] * desired_symbol_TOW[0];//+coef_doppler[2]*desired_symbol_TOW[0]*desired_symbol_TOW[0];
-					current_gnss_synchro[gnss_synchro_iter->second.Channel_ID].Carrier_phase_rads =acc_phase_lin[0];
+					current_gnss_synchro[gnss_synchro_iter->second.Channel_ID].Carrier_phase_rads = acc_phase_lin[0];
-					current_gnss_synchro[gnss_synchro_iter->second.Channel_ID].Carrier_Doppler_hz =carrier_doppler_lin[0];
+					current_gnss_synchro[gnss_synchro_iter->second.Channel_ID].Carrier_Doppler_hz = carrier_doppler_lin[0];
 				}
                 }
         }
@@ -267,6 +272,10 @@ int galileo_e1_observables_cc::general_work (int noutput_items, gr_vector_int &n
         {
             *out[i] = current_gnss_synchro[i];
         }
-    return 1; //Output the observables
+    if (noutput_items == 0)
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
+    return 1;
 }
 

src/algorithms/observables/gnuradio_blocks/gps_l1_ca_observables_cc.cc

@@ -64,7 +64,7 @@ gps_l1_ca_observables_cc::gps_l1_ca_observables_cc(unsigned int nchannels, boost
     d_dump_filename = dump_filename;
     d_flag_averaging = flag_averaging;
 
-    for (int i = 0; i < d_nchannels; i++)
+    for (unsigned int i = 0; i < d_nchannels; i++)
         {
             d_acc_carrier_phase_queue_rads.push_back(std::deque<double>(d_nchannels));
             d_carrier_doppler_queue_hz.push_back(std::deque<double>(d_nchannels));
@@ -120,6 +120,11 @@ int gps_l1_ca_observables_cc::general_work (int noutput_items, gr_vector_int &ni
     std::map<int,Gnss_Synchro> current_gnss_synchro_map;
     std::map<int,Gnss_Synchro>::iterator gnss_synchro_iter;
     
+    if (d_nchannels != ninput_items.size())
+        {
+            LOG(WARNING) << "The Observables block is not well connected";
+        }
+
     /*
      * 1. Read the GNSS SYNCHRO objects from available channels
      */
@@ -229,9 +234,10 @@ int gps_l1_ca_observables_cc::general_work (int noutput_items, gr_vector_int &ni
                             A.col(1) = symbol_TOW_vec_s;
                             //A.col(2)=symbol_TOW_vec_s % symbol_TOW_vec_s;
                             arma::mat coef_acc_phase(1,3);
-                            coef_acc_phase = arma::pinv(A.t() * A) * A.t() * acc_phase_vec_rads;
+                            arma::mat pinv_A = arma::pinv(A.t() * A) * A.t();
+                            coef_acc_phase = pinv_A * acc_phase_vec_rads;
                             arma::mat coef_doppler(1,3);
-                            coef_doppler = arma::pinv(A.t() * A) * A.t() * dopper_vec_hz;
+                            coef_doppler = pinv_A * dopper_vec_hz;
                             arma::vec acc_phase_lin;
                             arma::vec carrier_doppler_lin;
                             acc_phase_lin = coef_acc_phase[0] + coef_acc_phase[1] * desired_symbol_TOW[0];//+coef_acc_phase[2]*desired_symbol_TOW[0]*desired_symbol_TOW[0];
@@ -281,6 +287,10 @@ int gps_l1_ca_observables_cc::general_work (int noutput_items, gr_vector_int &ni
         {
             *out[i] = current_gnss_synchro[i];
         }
-    return 1; // Output the observables
+    if (noutput_items == 0)
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
+    return 1;
 }
 

src/algorithms/observables/gnuradio_blocks/hybrid_observables_cc.cc

@@ -121,6 +121,11 @@ int hybrid_observables_cc::general_work (int noutput_items, gr_vector_int &ninpu
     std::map<int,Gnss_Synchro> current_gnss_synchro_map_gps_only;
     std::map<int,Gnss_Synchro>::iterator gnss_synchro_iter;
 
+    if (d_nchannels != ninput_items.size())
+        {
+            LOG(WARNING) << "The Observables block is not well connected";
+        }
+
     /*
      * 1. Read the GNSS SYNCHRO objects from available channels
      */
@@ -228,7 +233,11 @@ int hybrid_observables_cc::general_work (int noutput_items, gr_vector_int &ninpu
         {
             *out[i] = current_gnss_synchro[i];
         }
-    //todo: enable output when the hybrid algorithm is completed
+
-    return 1; //Output the observables
+    if (noutput_items == 0)
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
+    return 1;
 }
 

src/algorithms/observables/gnuradio_blocks/mixed_observables_cc.cc

@@ -112,6 +112,11 @@ int mixed_observables_cc::general_work (int noutput_items, gr_vector_int &ninput
     std::map<int,Gnss_Synchro> current_gnss_synchro_map;
     std::map<int,Gnss_Synchro>::iterator gnss_synchro_iter;
 
+    if (d_nchannels != ninput_items.size())
+        {
+            LOG(WARNING) << "The Observables block is not well connected";
+        }
+
     /*
      * 1. Read the GNSS SYNCHRO objects from available channels
      */
@@ -207,6 +212,10 @@ int mixed_observables_cc::general_work (int noutput_items, gr_vector_int &ninput
         {
             *out[i] = current_gnss_synchro[i];
         }
-    return 1; // Output the observables
+    if (noutput_items == 0)
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
+    return 1;
 }
 

src/algorithms/signal_generator/gnuradio_blocks/signal_generator_c.cc

@@ -329,8 +329,8 @@ gr_vector_void_star &output_items)
 				    // New random data bit
 				    current_data_bit_int_[sat] = (rand()%2) == 0 ? 1 : -1;
 				}
-        		    data_modulation_[sat] = current_data_bit_int_[sat] * (Galileo_E5a_I_SECONDARY_CODE.at((ms_counter_[sat]+delay_sec_[sat])%20)=='0' ? 1 : -1);
+        		    data_modulation_[sat] = current_data_bit_int_[sat] * (Galileo_E5a_I_SECONDARY_CODE.at((ms_counter_[sat]+delay_sec_[sat]) % 20) == '0' ? 1 : -1);
-        		    pilot_modulation_[sat] = (Galileo_E5a_Q_SECONDARY_CODE[PRN_[sat] - 1].at((ms_counter_[sat] + delay_sec_[sat]) % 100)=='0' ? 1 : -1);
+        		    pilot_modulation_[sat] = (Galileo_E5a_Q_SECONDARY_CODE[PRN_[sat] - 1].at((ms_counter_[sat] + delay_sec_[sat]) % 100) == '0' ? 1 : -1);
 
         		    ms_counter_[sat] = ms_counter_[sat] + static_cast<int>(round(1e3*GALILEO_E5a_CODE_PERIOD));
 
@@ -384,6 +384,11 @@ gr_vector_void_star &output_items)
                 }
         }
 
+    if((noutput_items == 0) || (ninput_items.size() != 0) || input_items[0] == 0)
+        {
+            // do nothing
+        }
+
     // Tell runtime system how many output items we produced.
     return 1;
 }

src/algorithms/signal_source/gnuradio_blocks/unpack_2bit_samples.cc

@@ -160,7 +160,7 @@ int unpack_2bit_samples::work(int noutput_items,
     {
         if( swap_endian_bytes_ )
         {
-            for(int i = 0; i < ninput_bytes; ++i)
+            for(unsigned int i = 0; i < ninput_bytes; ++i)
             {
                 // Read packed input sample (1 byte = 4 samples)
                 raw_byte.byte = in[i];
@@ -174,7 +174,7 @@ int unpack_2bit_samples::work(int noutput_items,
         }
         else
         {
-            for( int i = 0; i < ninput_bytes; ++i )
+            for(unsigned int i = 0; i < ninput_bytes; ++i )
             {
 
                 // Read packed input sample (1 byte = 4 samples)
@@ -192,7 +192,7 @@ int unpack_2bit_samples::work(int noutput_items,
 
         if( swap_endian_bytes_ )
         {
-            for(int i = 0; i < ninput_bytes; ++i)
+            for(unsigned int i = 0; i < ninput_bytes; ++i)
             {
                 // Read packed input sample (1 byte = 4 samples)
                 raw_byte.byte = in[i];
@@ -206,7 +206,7 @@ int unpack_2bit_samples::work(int noutput_items,
         }
         else
         {
-            for( int i = 0; i < ninput_bytes; ++i )
+            for(unsigned int i = 0; i < ninput_bytes; ++i )
             {
 
                 // Read packed input sample (1 byte = 4 samples)

src/algorithms/telemetry_decoder/adapters/galileo_e1b_telemetry_decoder.cc

@@ -62,14 +62,10 @@ GalileoE1BTelemetryDecoder::GalileoE1BTelemetryDecoder(ConfigurationInterface* c
     std::string default_item_type = "gr_complex";
     std::string default_dump_filename = "./navigation.dat";
     DLOG(INFO) << "role " << role;
-    DLOG(INFO) << "vector length " << vector_length_;
-    vector_length_ = configuration->property(role + ".vector_length", 2048);
     dump_ = configuration->property(role + ".dump", false);
     dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
-    int fs_in;
-    fs_in = configuration->property("GNSS-SDR.internal_fs_hz", 2048000);
     // make telemetry decoder object
-    telemetry_decoder_ = galileo_e1b_make_telemetry_decoder_cc(satellite_, 0, (long)fs_in, vector_length_, queue_, dump_); // TODO fix me
+    telemetry_decoder_ = galileo_e1b_make_telemetry_decoder_cc(satellite_, queue_, dump_); // TODO fix me
     DLOG(INFO) << "telemetry_decoder(" << telemetry_decoder_->unique_id() << ")";
     // set the navigation msg queue;
     telemetry_decoder_->set_ephemeris_queue(&global_galileo_ephemeris_queue);

src/algorithms/telemetry_decoder/adapters/galileo_e5a_telemetry_decoder.cc

@@ -66,14 +66,10 @@ GalileoE5aTelemetryDecoder::GalileoE5aTelemetryDecoder(ConfigurationInterface* c
     std::string default_item_type = "gr_complex";
     std::string default_dump_filename = "./navigation.dat";
     DLOG(INFO) << "role " << role;
-    DLOG(INFO) << "vector length " << vector_length_;
-    vector_length_ = configuration->property(role + ".vector_length", 2048);
     dump_ = configuration->property(role + ".dump", false);
     dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
-    int fs_in;
-    fs_in = configuration->property("GNSS-SDR.internal_fs_hz", 2048000);
     // make telemetry decoder object
-    telemetry_decoder_ = galileo_e5a_make_telemetry_decoder_cc(satellite_, 0, (long)fs_in, vector_length_, queue_, dump_); // TODO fix me
+    telemetry_decoder_ = galileo_e5a_make_telemetry_decoder_cc(satellite_, queue_, dump_); // TODO fix me
     DLOG(INFO) << "telemetry_decoder(" << telemetry_decoder_->unique_id() << ")";
     // set the navigation msg queue;
     telemetry_decoder_->set_ephemeris_queue(&global_galileo_ephemeris_queue);

src/algorithms/telemetry_decoder/adapters/galileo_e5a_telemetry_decoder.h

@@ -89,7 +89,6 @@ private:
     galileo_e5a_telemetry_decoder_cc_sptr telemetry_decoder_;
     Gnss_Satellite satellite_;
     int channel_;
-    unsigned int vector_length_;
     std::string item_type_;
     bool dump_;
     std::string dump_filename_;

src/algorithms/telemetry_decoder/adapters/gps_l1_ca_telemetry_decoder.cc

@@ -61,14 +61,10 @@ GpsL1CaTelemetryDecoder::GpsL1CaTelemetryDecoder(ConfigurationInterface* configu
     std::string default_item_type = "gr_complex";
     std::string default_dump_filename = "./navigation.dat";
     DLOG(INFO) << "role " << role;
-    DLOG(INFO) << "vector length " << vector_length_;
-    vector_length_ = configuration->property(role + ".vector_length", 2048);
     dump_ = configuration->property(role + ".dump", false);
     dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
-    int fs_in;
-    fs_in = configuration->property("GNSS-SDR.internal_fs_hz", 2048000);
     // make telemetry decoder object
-    telemetry_decoder_ = gps_l1_ca_make_telemetry_decoder_cc(satellite_, 0, (long)fs_in, vector_length_, queue_, dump_); // TODO fix me
+    telemetry_decoder_ = gps_l1_ca_make_telemetry_decoder_cc(satellite_, queue_, dump_); // TODO fix me
     DLOG(INFO) << "telemetry_decoder(" << telemetry_decoder_->unique_id() << ")";
     // set the navigation msg queue;
     telemetry_decoder_->set_ephemeris_queue(&global_gps_ephemeris_queue);

src/algorithms/telemetry_decoder/adapters/gps_l2_m_telemetry_decoder.cc

@@ -61,14 +61,10 @@ GpsL2MTelemetryDecoder::GpsL2MTelemetryDecoder(ConfigurationInterface* configura
     std::string default_item_type = "gr_complex";
     std::string default_dump_filename = "./navigation.dat";
     DLOG(INFO) << "role " << role;
-    DLOG(INFO) << "vector length " << vector_length_;
-    vector_length_ = configuration->property(role + ".vector_length", 2048);
     dump_ = configuration->property(role + ".dump", false);
     dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
-    int fs_in;
-    fs_in = configuration->property("GNSS-SDR.internal_fs_hz", 2048000);
     // make telemetry decoder object
-    telemetry_decoder_ = gps_l2_m_make_telemetry_decoder_cc(satellite_, 0, (long)fs_in, vector_length_, queue_, dump_); // TODO fix me
+    telemetry_decoder_ = gps_l2_m_make_telemetry_decoder_cc(satellite_, queue_, dump_); // TODO fix me
     DLOG(INFO) << "telemetry_decoder(" << telemetry_decoder_->unique_id() << ")";
     // set the navigation msg queue;
     telemetry_decoder_->set_ephemeris_queue(&global_gps_cnav_ephemeris_queue);

src/algorithms/telemetry_decoder/adapters/sbas_l1_telemetry_decoder.cc

@@ -61,14 +61,10 @@ SbasL1TelemetryDecoder::SbasL1TelemetryDecoder(ConfigurationInterface* configura
     std::string default_item_type = "gr_complex";
     std::string default_dump_filename = "./navigation.dat";
     DLOG(INFO) << "role " << role;
-    DLOG(INFO) << "vector length " << vector_length_;
-    vector_length_ = configuration->property(role + ".vector_length", 2048);
     dump_ = configuration->property(role + ".dump", false);
     dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
-    int fs_in;
-    fs_in = configuration->property("GNSS-SDR.internal_fs_hz", 2048000);
     // make telemetry decoder object
-    telemetry_decoder_ = sbas_l1_make_telemetry_decoder_cc(satellite_, 0, (long)fs_in, vector_length_, queue_, dump_); // TODO fix me
+    telemetry_decoder_ = sbas_l1_make_telemetry_decoder_cc(satellite_, queue_, dump_); // TODO fix me
     channel_ = 0;
     DLOG(INFO) << "telemetry_decoder(" << telemetry_decoder_->unique_id() << ")";
     // set the queues;

src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_e1b_telemetry_decoder_cc.cc

@@ -50,18 +50,19 @@ using google::LogMessage;
 
 
 galileo_e1b_telemetry_decoder_cc_sptr
-galileo_e1b_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
+galileo_e1b_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump)
-		int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump)
 {
-    return galileo_e1b_telemetry_decoder_cc_sptr(new galileo_e1b_telemetry_decoder_cc(satellite, if_freq,
+    return galileo_e1b_telemetry_decoder_cc_sptr(new galileo_e1b_telemetry_decoder_cc(satellite, queue, dump));
-            fs_in, vector_length, queue, dump));
 }
 
 
 
 void galileo_e1b_telemetry_decoder_cc::forecast (int noutput_items, gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = GALILEO_INAV_PAGE_SYMBOLS; // set the required sample history
+    if(noutput_items != 0)
+        {
+            ninput_items_required[0] = GALILEO_INAV_PAGE_SYMBOLS; // set the required sample history
+        }
 }
 
 
@@ -116,10 +117,6 @@ void galileo_e1b_telemetry_decoder_cc::deinterleaver(int rows, int cols, double
 
 galileo_e1b_telemetry_decoder_cc::galileo_e1b_telemetry_decoder_cc(
         Gnss_Satellite satellite,
-        long if_freq,
-        long fs_in,
-        unsigned
-        int vector_length,
         boost::shared_ptr<gr::msg_queue> queue,
         bool dump) :
            gr::block("galileo_e1b_telemetry_decoder_cc", gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)),
@@ -130,9 +127,7 @@ galileo_e1b_telemetry_decoder_cc::galileo_e1b_telemetry_decoder_cc(
     d_dump = dump;
     d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
     LOG(INFO) << "Initializing GALILEO E1B TELEMETRY PROCESSING";
-    d_vector_length = vector_length;
     d_samples_per_symbol = ( Galileo_E1_CODE_CHIP_RATE_HZ / Galileo_E1_B_CODE_LENGTH_CHIPS ) / Galileo_E1_B_SYMBOL_RATE_BPS;
-    d_fs_in = fs_in;
 
     // set the preamble
     unsigned short int preambles_bits[GALILEO_INAV_PREAMBLE_LENGTH_BITS] = GALILEO_INAV_PREAMBLE;
@@ -499,6 +494,10 @@ int galileo_e1b_telemetry_decoder_cc::general_work (int noutput_items, gr_vector
         }
     //todo: implement averaging
     d_average_count++;
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     if (d_average_count == d_decimation_output_factor)
         {
             d_average_count = 0;

src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_e1b_telemetry_decoder_cc.h

@@ -54,8 +54,7 @@ class galileo_e1b_telemetry_decoder_cc;
 
 typedef boost::shared_ptr<galileo_e1b_telemetry_decoder_cc> galileo_e1b_telemetry_decoder_cc_sptr;
 
-galileo_e1b_telemetry_decoder_cc_sptr galileo_e1b_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
+galileo_e1b_telemetry_decoder_cc_sptr galileo_e1b_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-    int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
 
 /*!
  * \brief This class implements a block that decodes the INAV data defined in Galileo ICD
@@ -92,10 +91,8 @@ public:
 
 private:
     friend galileo_e1b_telemetry_decoder_cc_sptr
-    galileo_e1b_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in,unsigned
+    galileo_e1b_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-            int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
+    galileo_e1b_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-    galileo_e1b_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
-            int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
 
     void viterbi_decoder(double *page_part_symbols, int *page_part_bits);
 
@@ -105,7 +102,7 @@ private:
 
     unsigned short int d_preambles_bits[GALILEO_INAV_PREAMBLE_LENGTH_BITS];
 
-    signed int *d_preambles_symbols;
+    int *d_preambles_symbols;
     unsigned int d_samples_per_symbol;
     int d_symbols_per_preamble;
 
@@ -118,8 +115,6 @@ private:
     bool d_flag_preamble;
     int d_CRC_error_counter;
 
-    long d_fs_in;
-
     // navigation message vars
     Galileo_Navigation_Message d_nav;
 
@@ -133,7 +128,6 @@ private:
     concurrent_queue<Galileo_Almanac> *d_almanac_queue;
 
     boost::shared_ptr<gr::msg_queue> d_queue;
-    unsigned int d_vector_length;
     bool d_dump;
     Gnss_Satellite d_satellite;
     int d_channel;
@@ -151,7 +145,6 @@ private:
     bool flag_TOW_set;
     double delta_t; //GPS-GALILEO time offset
 
-
     std::string d_dump_filename;
     std::ofstream d_dump_file;
 };

src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_e5a_telemetry_decoder_cc.cc

@@ -55,17 +55,18 @@ using google::LogMessage;
 
 
 galileo_e5a_telemetry_decoder_cc_sptr
-galileo_e5a_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
+galileo_e5a_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump)
-		int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump)
 {
-    return galileo_e5a_telemetry_decoder_cc_sptr(new galileo_e5a_telemetry_decoder_cc(satellite, if_freq,
+    return galileo_e5a_telemetry_decoder_cc_sptr(new galileo_e5a_telemetry_decoder_cc(satellite, queue, dump));
-            fs_in, vector_length, queue, dump));
 }
 
 void galileo_e5a_telemetry_decoder_cc::forecast (int noutput_items, gr_vector_int &ninput_items_required)
 {
     //ninput_items_required[0] = GALILEO_FNAV_SAMPLES_PER_PAGE; // set the required sample history
-    ninput_items_required[0] = GALILEO_FNAV_CODES_PER_PREAMBLE;
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = GALILEO_FNAV_CODES_PER_PREAMBLE;
+        }
 }
 
 void galileo_e5a_telemetry_decoder_cc::viterbi_decoder(double *page_part_symbols, int *page_part_bits)
@@ -192,10 +193,6 @@ void galileo_e5a_telemetry_decoder_cc::decode_word(double *page_symbols,int fram
 
 galileo_e5a_telemetry_decoder_cc::galileo_e5a_telemetry_decoder_cc(
         Gnss_Satellite satellite,
-        long if_freq,
-        long fs_in,
-        unsigned
-        int vector_length,
         boost::shared_ptr<gr::msg_queue> queue,
         bool dump) :
            gr::block("galileo_e5a_telemetry_decoder_cc", gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)),
@@ -206,9 +203,7 @@ galileo_e5a_telemetry_decoder_cc::galileo_e5a_telemetry_decoder_cc(
     d_dump = dump;
     d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
     LOG(INFO) << "GALILEO E5A TELEMETRY PROCESSING: satellite " << d_satellite;
-    d_vector_length = vector_length;
     //d_samples_per_symbol = ( Galileo_E5a_CODE_CHIP_RATE_HZ / Galileo_E5a_CODE_LENGTH_CHIPS ) / Galileo_E1_B_SYMBOL_RATE_BPS;
-    d_fs_in = fs_in;
 
     // set the preamble
     //unsigned short int preambles_bits[GALILEO_FNAV_PREAMBLE_LENGTH_BITS] = GALILEO_FNAV_PREAMBLE;
@@ -585,6 +580,10 @@ int galileo_e5a_telemetry_decoder_cc::general_work (int noutput_items, gr_vector
     d_sample_counter++; //count for the processed samples
     //3. Make the output (copy the object contents to the GNURadio reserved memory)
     *out[0] = current_synchro_data;
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return 1;
 }
 

src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_e5a_telemetry_decoder_cc.h

@@ -58,8 +58,7 @@ class galileo_e5a_telemetry_decoder_cc;
 
 typedef boost::shared_ptr<galileo_e5a_telemetry_decoder_cc> galileo_e5a_telemetry_decoder_cc_sptr;
 
-galileo_e5a_telemetry_decoder_cc_sptr galileo_e5a_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
+galileo_e5a_telemetry_decoder_cc_sptr galileo_e5a_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-    int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
 
 
 /*!
@@ -90,10 +89,8 @@ public:
 
 private:
     friend galileo_e5a_telemetry_decoder_cc_sptr
-    galileo_e5a_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in,unsigned
+    galileo_e5a_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-            int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
+    galileo_e5a_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-    galileo_e5a_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
-            int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
 
     void viterbi_decoder(double *page_part_symbols, int *page_part_bits);
 
@@ -101,10 +98,10 @@ private:
 
     void decode_word(double *page_symbols,int frame_length);
 
-    signed int d_preamble_bits[GALILEO_FNAV_PREAMBLE_LENGTH_BITS];
+    int d_preamble_bits[GALILEO_FNAV_PREAMBLE_LENGTH_BITS];
-//    signed int d_page_symbols[GALILEO_FNAV_SYMBOLS_PER_PAGE + GALILEO_FNAV_PREAMBLE_LENGTH_BITS];
+    // signed int d_page_symbols[GALILEO_FNAV_SYMBOLS_PER_PAGE + GALILEO_FNAV_PREAMBLE_LENGTH_BITS];
     double d_page_symbols[GALILEO_FNAV_SYMBOLS_PER_PAGE + GALILEO_FNAV_PREAMBLE_LENGTH_BITS];
-   // signed int *d_preamble_symbols;
+    // signed int *d_preamble_symbols;
     double d_current_symbol;
     long unsigned int d_symbol_counter;
     int d_prompt_counter;
@@ -120,8 +117,6 @@ private:
     bool d_flag_preamble;
     int d_CRC_error_counter;
 
-    long d_fs_in;
-
     // navigation message vars
     Galileo_Fnav_Message d_nav;
 
@@ -135,7 +130,6 @@ private:
     concurrent_queue<Galileo_Almanac> *d_almanac_queue;
 
     boost::shared_ptr<gr::msg_queue> d_queue;
-    unsigned int d_vector_length;
     bool d_dump;
     Gnss_Satellite d_satellite;
     int d_channel;

src/algorithms/telemetry_decoder/gnuradio_blocks/gps_l1_ca_telemetry_decoder_cc.cc

@@ -52,20 +52,21 @@ using google::LogMessage;
  * \todo name and move the magic numbers to GPS_L1_CA.h
  */
 gps_l1_ca_telemetry_decoder_cc_sptr
-gps_l1_ca_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
+gps_l1_ca_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump)
-        int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump)
 {
-    return gps_l1_ca_telemetry_decoder_cc_sptr(new gps_l1_ca_telemetry_decoder_cc(satellite, if_freq,
+    return gps_l1_ca_telemetry_decoder_cc_sptr(new gps_l1_ca_telemetry_decoder_cc(satellite, queue, dump));
-            fs_in, vector_length, queue, dump));
 }
 
 
 
 void gps_l1_ca_telemetry_decoder_cc::forecast (int noutput_items, gr_vector_int &ninput_items_required)
 {
-    for (unsigned i = 0; i < 3; i++)
+    if (noutput_items != 0)
         {
-            ninput_items_required[i] = d_samples_per_bit * 8; //set the required sample history
+            for (unsigned i = 0; i < 3; i++)
+                {
+                    ninput_items_required[i] = d_samples_per_bit * 8; //set the required sample history
+                }
         }
 }
 
@@ -73,10 +74,6 @@ void gps_l1_ca_telemetry_decoder_cc::forecast (int noutput_items, gr_vector_int
 
 gps_l1_ca_telemetry_decoder_cc::gps_l1_ca_telemetry_decoder_cc(
         Gnss_Satellite satellite,
-        long if_freq,
-        long fs_in,
-        unsigned
-        int vector_length,
         boost::shared_ptr<gr::msg_queue> queue,
         bool dump) :
         gr::block("gps_navigation_cc", gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)),
@@ -86,9 +83,7 @@ gps_l1_ca_telemetry_decoder_cc::gps_l1_ca_telemetry_decoder_cc(
     d_queue = queue;
     d_dump = dump;
     d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
-    d_vector_length = vector_length;
     d_samples_per_bit = ( GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS ) / GPS_CA_TELEMETRY_RATE_BITS_SECOND;
-    d_fs_in = fs_in;
     //d_preamble_duration_seconds = (1.0 / GPS_CA_TELEMETRY_RATE_BITS_SECOND) * GPS_CA_PREAMBLE_LENGTH_BITS;
     //std::cout<<"d_preamble_duration_seconds="<<d_preamble_duration_seconds<<"\r\n";
     // set the preamble
@@ -371,6 +366,10 @@ int gps_l1_ca_telemetry_decoder_cc::general_work (int noutput_items, gr_vector_i
     //todo: implement averaging
 
     d_average_count++;
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     if (d_average_count == d_decimation_output_factor)
         {
             d_average_count = 0;

src/algorithms/telemetry_decoder/gnuradio_blocks/gps_l1_ca_telemetry_decoder_cc.h

@@ -48,8 +48,7 @@ class gps_l1_ca_telemetry_decoder_cc;
 typedef boost::shared_ptr<gps_l1_ca_telemetry_decoder_cc> gps_l1_ca_telemetry_decoder_cc_sptr;
 
 gps_l1_ca_telemetry_decoder_cc_sptr
-gps_l1_ca_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
+gps_l1_ca_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-    int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
 
 /*!
  * \brief This class implements a block that decodes the NAV data defined in IS-GPS-200E
@@ -90,11 +89,9 @@ public:
 
 private:
     friend gps_l1_ca_telemetry_decoder_cc_sptr
-    gps_l1_ca_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in,unsigned
+    gps_l1_ca_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-            int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
 
-    gps_l1_ca_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
+    gps_l1_ca_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-            int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
 
     bool gps_word_parityCheck(unsigned int gpsword);
 
@@ -102,7 +99,7 @@ private:
     unsigned short int d_preambles_bits[GPS_CA_PREAMBLE_LENGTH_BITS];
     // class private vars
 
-    signed int *d_preambles_symbols;
+    int *d_preambles_symbols;
     unsigned int d_samples_per_bit;
     long unsigned int d_sample_counter;
     long unsigned int d_preamble_index;
@@ -125,14 +122,12 @@ private:
     int d_average_count;
     int d_decimation_output_factor;
 
-    long d_fs_in;
     //double d_preamble_duration_seconds;
     // navigation message vars
     Gps_Navigation_Message d_nav;
     GpsL1CaSubframeFsm d_GPS_FSM;
 
     boost::shared_ptr<gr::msg_queue> d_queue;
-    unsigned int d_vector_length;
     bool d_dump;
     Gnss_Satellite d_satellite;
     int d_channel;

src/algorithms/telemetry_decoder/gnuradio_blocks/gps_l2_m_telemetry_decoder_cc.cc

@@ -48,21 +48,15 @@ using google::LogMessage;
 
 
 gps_l2_m_telemetry_decoder_cc_sptr
-gps_l2_m_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
+gps_l2_m_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump)
-        int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump)
 {
-    return gps_l2_m_telemetry_decoder_cc_sptr(new gps_l2_m_telemetry_decoder_cc(satellite, if_freq,
+    return gps_l2_m_telemetry_decoder_cc_sptr(new gps_l2_m_telemetry_decoder_cc(satellite, queue, dump));
-            fs_in, vector_length, queue, dump));
 }
 
 
 
 gps_l2_m_telemetry_decoder_cc::gps_l2_m_telemetry_decoder_cc(
         Gnss_Satellite satellite,
-        long if_freq,
-        long fs_in,
-        unsigned
-        int vector_length,
         boost::shared_ptr<gr::msg_queue> queue,
         bool dump) :
                 gr::block("gps_l2_m_telemetry_decoder_cc",
@@ -73,7 +67,6 @@ gps_l2_m_telemetry_decoder_cc::gps_l2_m_telemetry_decoder_cc(
     d_dump = dump;
     d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
     LOG(INFO) << "GPS L2C M TELEMETRY PROCESSING: satellite " << d_satellite;
-    d_fs_in = fs_in;
     d_block_size = GPS_L2_SAMPLES_PER_SYMBOL * GPS_L2_SYMBOLS_PER_BIT * GPS_L2_CNAV_DATA_PAGE_BITS * 2; // two CNAV frames
     d_decimation_output_factor = 0;
     //set_output_multiple (1);
@@ -99,9 +92,12 @@ gps_l2_m_telemetry_decoder_cc::~gps_l2_m_telemetry_decoder_cc()
 
 void gps_l2_m_telemetry_decoder_cc::forecast (int noutput_items, gr_vector_int &ninput_items_required)
 {
-    unsigned ninputs = ninput_items_required.size ();
+    if (noutput_items != 0)
-    for (unsigned i = 0; i < ninputs; i++)
+        {
-        ninput_items_required[i] = noutput_items;
+            unsigned ninputs = ninput_items_required.size ();
+            for (unsigned i = 0; i < ninputs; i++)
+                ninput_items_required[i] = noutput_items;
+        }
     //LOG(INFO) << "forecast(): " << "noutput_items=" << noutput_items << "\tninput_items_required ninput_items_required.size()=" << ninput_items_required.size();
 }
 
@@ -262,6 +258,10 @@ int gps_l2_m_telemetry_decoder_cc::general_work (int noutput_items, gr_vector_in
         }
 
     d_average_count++;
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     if (d_average_count == d_decimation_output_factor)
         {
             d_average_count = 0;

src/algorithms/telemetry_decoder/gnuradio_blocks/gps_l2_m_telemetry_decoder_cc.h

@@ -53,8 +53,7 @@ class gps_l2_m_telemetry_decoder_cc;
 typedef boost::shared_ptr<gps_l2_m_telemetry_decoder_cc> gps_l2_m_telemetry_decoder_cc_sptr;
 
 gps_l2_m_telemetry_decoder_cc_sptr
-gps_l2_m_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
+gps_l2_m_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-    int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
 
 /*!
  * \brief This class implements a block that decodes the SBAS integrity and corrections data defined in RTCA MOPS DO-229
@@ -87,17 +86,14 @@ public:
 
 private:
     friend gps_l2_m_telemetry_decoder_cc_sptr
-    gps_l2_m_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in,unsigned
+    gps_l2_m_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-            int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
+    gps_l2_m_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-    gps_l2_m_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
-            int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
 
     void viterbi_decoder(double *page_part_symbols, int *page_part_bits);
     void align_samples();
 
     concurrent_queue<Gps_CNAV_Iono> *d_iono_queue;
     concurrent_queue<Gps_CNAV_Ephemeris> *d_ephemeris_queue;
-    long d_fs_in;
 
     bool d_dump;
     Gnss_Satellite d_satellite;

src/algorithms/telemetry_decoder/gnuradio_blocks/sbas_l1_telemetry_decoder_cc.cc

@@ -48,21 +48,15 @@ using google::LogMessage;
 
 
 sbas_l1_telemetry_decoder_cc_sptr
-sbas_l1_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
+sbas_l1_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump)
-        int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump)
 {
-    return sbas_l1_telemetry_decoder_cc_sptr(new sbas_l1_telemetry_decoder_cc(satellite, if_freq,
+    return sbas_l1_telemetry_decoder_cc_sptr(new sbas_l1_telemetry_decoder_cc(satellite, queue, dump));
-            fs_in, vector_length, queue, dump));
 }
 
 
 
 sbas_l1_telemetry_decoder_cc::sbas_l1_telemetry_decoder_cc(
         Gnss_Satellite satellite,
-        long if_freq,
-        long fs_in,
-        unsigned
-        int vector_length,
         boost::shared_ptr<gr::msg_queue> queue,
         bool dump) :
                 gr::block("sbas_l1_telemetry_decoder_cc",
@@ -73,7 +67,6 @@ sbas_l1_telemetry_decoder_cc::sbas_l1_telemetry_decoder_cc(
     d_dump = dump;
     d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
     LOG(INFO) << "SBAS L1 TELEMETRY PROCESSING: satellite " << d_satellite;
-    d_fs_in = fs_in;
     d_block_size = d_samples_per_symbol * d_symbols_per_bit * d_block_size_in_bits;
     d_channel = 0;
     set_output_multiple (1);
@@ -187,6 +180,10 @@ int sbas_l1_telemetry_decoder_cc::general_work (int noutput_items, gr_vector_int
             current_synchro_data[i].Flag_valid_word = false; // indicate to observable block that this synchro object isn't valid for pseudorange computation
         }
     consume_each(noutput_items); // tell scheduler input items consumed
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return noutput_items; // tell scheduler output items produced
 }
 

src/algorithms/telemetry_decoder/gnuradio_blocks/sbas_l1_telemetry_decoder_cc.h

@@ -49,8 +49,7 @@ class sbas_l1_telemetry_decoder_cc;
 typedef boost::shared_ptr<sbas_l1_telemetry_decoder_cc> sbas_l1_telemetry_decoder_cc_sptr;
 
 sbas_l1_telemetry_decoder_cc_sptr
-sbas_l1_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
+sbas_l1_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-    int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
 
 /*!
  * \brief This class implements a block that decodes the SBAS integrity and corrections data defined in RTCA MOPS DO-229
@@ -83,10 +82,8 @@ public:
 
 private:
     friend sbas_l1_telemetry_decoder_cc_sptr
-    sbas_l1_make_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in,unsigned
+    sbas_l1_make_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-            int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
+    sbas_l1_telemetry_decoder_cc(Gnss_Satellite satellite, boost::shared_ptr<gr::msg_queue> queue, bool dump);
-    sbas_l1_telemetry_decoder_cc(Gnss_Satellite satellite, long if_freq, long fs_in, unsigned
-            int vector_length, boost::shared_ptr<gr::msg_queue> queue, bool dump);
 
     void viterbi_decoder(double *page_part_symbols, int *page_part_bits);
     void align_samples();
@@ -95,8 +92,6 @@ private:
     static const int d_symbols_per_bit = 2;
     static const int d_block_size_in_bits = 30;
 
-    long d_fs_in;
-
     bool d_dump;
     Gnss_Satellite d_satellite;
     int d_channel;

src/algorithms/tracking/gnuradio_blocks/galileo_e1_dll_pll_veml_tracking_cc.cc

@@ -84,7 +84,10 @@ galileo_e1_dll_pll_veml_make_tracking_cc(
 void galileo_e1_dll_pll_veml_tracking_cc::forecast (int noutput_items,
         gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = static_cast<int>(d_vector_length) * 2; //set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = static_cast<int>(d_vector_length) * 2; //set the required available samples in each call
+        }
 }
 
 
@@ -210,10 +213,10 @@ void galileo_e1_dll_pll_veml_tracking_cc::start_tracking()
 
     d_carrier_lock_fail_counter = 0;
     d_rem_code_phase_samples = 0.0;
-    d_rem_carr_phase_rad = 0;
+    d_rem_carr_phase_rad = 0.0;
-    d_acc_carrier_phase_rad = 0;
+    d_acc_carrier_phase_rad = 0.0;
 
-    d_acc_code_phase_secs = 0;
+    d_acc_code_phase_secs = 0.0;
     d_carrier_doppler_hz = d_acq_carrier_doppler_hz;
     d_current_prn_length_samples = d_vector_length;
 
@@ -307,7 +310,7 @@ galileo_e1_dll_pll_veml_tracking_cc::~galileo_e1_dll_pll_veml_tracking_cc()
 
 
 
-int galileo_e1_dll_pll_veml_tracking_cc::general_work (int noutput_items,gr_vector_int &ninput_items,
+int galileo_e1_dll_pll_veml_tracking_cc::general_work (int noutput_items, gr_vector_int &ninput_items,
         gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
 {
     double carr_error_hz = 0.0;
@@ -326,7 +329,7 @@ int galileo_e1_dll_pll_veml_tracking_cc::general_work (int noutput_items,gr_vect
                     double acq_trk_shif_correction_samples;
                     int acq_to_trk_delay_samples;
                     acq_to_trk_delay_samples = d_sample_counter - d_acq_sample_stamp;
-                    acq_trk_shif_correction_samples = d_current_prn_length_samples - std::fmod(static_cast<float>(acq_to_trk_delay_samples), static_cast<float>(d_current_prn_length_samples));
+                    acq_trk_shif_correction_samples = d_current_prn_length_samples - std::fmod(static_cast<double>(acq_to_trk_delay_samples), static_cast<double>(d_current_prn_length_samples));
                     samples_offset = std::round(d_acq_code_phase_samples + acq_trk_shif_correction_samples);
                     d_sample_counter = d_sample_counter + samples_offset; //count for the processed samples
                     d_pull_in = false;
@@ -394,7 +397,7 @@ int galileo_e1_dll_pll_veml_tracking_cc::general_work (int noutput_items,gr_vect
             double T_prn_seconds;
             double T_prn_samples;
             double K_blk_samples;
-            // Compute the next buffer lenght based in the new period of the PRN sequence and the code phase error estimation
+            // Compute the next buffer length based in the new period of the PRN sequence and the code phase error estimation
             T_chip_seconds = 1.0 / d_code_freq_chips;
             T_prn_seconds = T_chip_seconds * Galileo_E1_B_CODE_LENGTH_CHIPS;
             T_prn_samples = T_prn_seconds * static_cast<double>(d_fs_in);
@@ -582,7 +585,11 @@ int galileo_e1_dll_pll_veml_tracking_cc::general_work (int noutput_items,gr_vect
         }
     consume_each(d_current_prn_length_samples); // this is required for gr_block derivates
     d_sample_counter += d_current_prn_length_samples; //count for the processed samples
-    //std::cout<<"Galileo tracking output at sample "<<d_sample_counter<<std::endl;
+
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return 1; //output tracking result ALWAYS even in the case of d_enable_tracking==false
 }
 

src/algorithms/tracking/gnuradio_blocks/galileo_e1_tcp_connector_tracking_cc.cc

@@ -86,7 +86,10 @@ galileo_e1_tcp_connector_tracking_cc_sptr galileo_e1_tcp_connector_make_tracking
 void Galileo_E1_Tcp_Connector_Tracking_cc::forecast (int noutput_items,
         gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = (int)d_vector_length*2; // set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = (int)d_vector_length*2; // set the required available samples in each call
+        }
 }
 
 
@@ -589,6 +592,10 @@ int Galileo_E1_Tcp_Connector_Tracking_cc::general_work (int noutput_items, gr_ve
         }
     consume_each(d_current_prn_length_samples); // this is needed in gr::block derivates
     d_sample_counter += d_current_prn_length_samples; //count for the processed samples
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return 1; //output tracking result ALWAYS even in the case of d_enable_tracking==false
 }
 

src/algorithms/tracking/gnuradio_blocks/galileo_e5a_dll_pll_tracking_cc.cc

@@ -86,7 +86,10 @@ galileo_e5a_dll_pll_make_tracking_cc(
 void Galileo_E5a_Dll_Pll_Tracking_cc::forecast (int noutput_items,
         gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = static_cast<int>(d_vector_length)*2; //set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = static_cast<int>(d_vector_length)*2; //set the required available samples in each call
+        }
 }
 
 Galileo_E5a_Dll_Pll_Tracking_cc::Galileo_E5a_Dll_Pll_Tracking_cc(
@@ -828,6 +831,10 @@ int Galileo_E5a_Dll_Pll_Tracking_cc::general_work (int noutput_items, gr_vector_
     d_secondary_delay = (d_secondary_delay + 1) % Galileo_E5a_Q_SECONDARY_CODE_LENGTH;
     d_sample_counter += d_current_prn_length_samples; //count for the processed samples
     consume_each(d_current_prn_length_samples); // this is necessary in gr::block derivates
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return 1; //output tracking result ALWAYS even in the case of d_enable_tracking==false
 }
 

src/algorithms/tracking/gnuradio_blocks/galileo_volk_e1_dll_pll_veml_tracking_cc.cc

@@ -85,7 +85,10 @@ galileo_volk_e1_dll_pll_veml_make_tracking_cc(
 void galileo_volk_e1_dll_pll_veml_tracking_cc::forecast (int noutput_items,
                                                     gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = static_cast<int>(d_vector_length) * 2; //set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = static_cast<int>(d_vector_length) * 2; //set the required available samples in each call
+        }
 }
 
 
@@ -135,21 +138,21 @@ gr::block("galileo_volk_e1_dll_pll_veml_tracking_cc", gr::io_signature::make(1,
     d_very_late_code = static_cast<gr_complex*>(volk_malloc(2 * d_vector_length * sizeof(gr_complex), volk_get_alignment()));
     d_carr_sign = static_cast<gr_complex*>(volk_malloc(2*d_vector_length * sizeof(gr_complex), volk_get_alignment()));
     
-    d_very_early_code16=static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
+    d_very_early_code16 = static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
-    d_early_code16=static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
+    d_early_code16 = static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
-    d_prompt_code16=static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
+    d_prompt_code16 = static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
-    d_late_code16=static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
+    d_late_code16 = static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
-    d_very_late_code16=static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
+    d_very_late_code16 = static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
-    d_carr_sign16=static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
+    d_carr_sign16 = static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
-    in16=static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
+    in16 = static_cast<lv_16sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_16sc_t), volk_get_alignment()));
     
-    d_very_early_code8=static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
+    d_very_early_code8 = static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
-    d_early_code8=static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
+    d_early_code8 = static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
-    d_prompt_code8=static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
+    d_prompt_code8 = static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
-    d_late_code8=static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
+    d_late_code8 = static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
-    d_very_late_code8=static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
+    d_very_late_code8 = static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
-    d_carr_sign8=static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
+    d_carr_sign8 = static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
-    in8=static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
+    in8 = static_cast<lv_8sc_t*>(volk_malloc(2 * d_vector_length * sizeof(lv_8sc_t), volk_get_alignment()));
     
     // correlator outputs (scalar)
     d_Very_Early = static_cast<gr_complex*>(volk_malloc(sizeof(gr_complex), volk_get_alignment()));
@@ -337,13 +340,13 @@ galileo_volk_e1_dll_pll_veml_tracking_cc::~galileo_volk_e1_dll_pll_veml_tracking
 
 
 
-int galileo_volk_e1_dll_pll_veml_tracking_cc::general_work (int noutput_items,gr_vector_int &ninput_items,
+int galileo_volk_e1_dll_pll_veml_tracking_cc::general_work (int noutput_items, gr_vector_int &ninput_items,
                                                        gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
 {
-    double carr_error_hz;
+    double carr_error_hz = 0.0;
-    double carr_error_filt_hz;
+    double carr_error_filt_hz = 0.0;
-    double code_error_chips;
+    double code_error_chips = 0.0;
-    double code_error_filt_chips;
+    double code_error_filt_chips = 0.0;
     
     if (d_enable_tracking == true)
     {
@@ -411,7 +414,7 @@ int galileo_volk_e1_dll_pll_veml_tracking_cc::general_work (int noutput_items,gr
 
         // ################## PLL ##########################################################
         // PLL discriminator
-        carr_error_hz = pll_cloop_two_quadrant_atan(*d_Prompt) / static_cast<float>(GPS_TWO_PI);
+        carr_error_hz = pll_cloop_two_quadrant_atan(*d_Prompt) / GPS_TWO_PI;
         // Carrier discriminator filter
         carr_error_filt_hz = d_carrier_loop_filter.get_carrier_nco(carr_error_hz);
         // New carrier Doppler frequency estimation
@@ -629,7 +632,11 @@ int galileo_volk_e1_dll_pll_veml_tracking_cc::general_work (int noutput_items,gr
     }
     consume_each(d_current_prn_length_samples); // this is required for gr_block derivates
     d_sample_counter += d_current_prn_length_samples; //count for the processed samples
-    //std::cout<<"Galileo tracking output at sample "<<d_sample_counter<<std::endl;
+
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return 1; //output tracking result ALWAYS even in the case of d_enable_tracking==false
 }
 

src/algorithms/tracking/gnuradio_blocks/gps_l1_ca_dll_fll_pll_tracking_cc.cc

@@ -84,7 +84,10 @@ gps_l1_ca_dll_fll_pll_tracking_cc_sptr gps_l1_ca_dll_fll_pll_make_tracking_cc(
 
 void Gps_L1_Ca_Dll_Fll_Pll_Tracking_cc::forecast (int noutput_items, gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = d_vector_length * 2; //set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = d_vector_length * 2; //set the required available samples in each call
+        }
 }
 
 
@@ -650,6 +653,10 @@ int Gps_L1_Ca_Dll_Fll_Pll_Tracking_cc::general_work (int noutput_items, gr_vecto
         }
     consume_each(d_current_prn_length_samples); // this is necessary in gr::block derivates
     d_sample_counter += d_current_prn_length_samples; //count for the processed samples
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return 1; //output tracking result ALWAYS even in the case of d_enable_tracking==false
 }
 

src/algorithms/tracking/gnuradio_blocks/gps_l1_ca_dll_pll_c_aid_tracking_cc.cc

@@ -77,7 +77,10 @@ gps_l1_ca_dll_pll_c_aid_make_tracking_cc(
 void gps_l1_ca_dll_pll_c_aid_tracking_cc::forecast (int noutput_items,
         gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = static_cast<int>(d_vector_length) * 2; //set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = static_cast<int>(d_vector_length) * 2; //set the required available samples in each call
+        }
 }
 
 
@@ -319,21 +322,21 @@ int gps_l1_ca_dll_pll_c_aid_tracking_cc::general_work (int noutput_items, gr_vec
             // ################# CARRIER WIPEOFF AND CORRELATORS ##############################
             // perform carrier wipe-off and compute Early, Prompt and Late correlation
             multicorrelator_cpu.set_input_output_vectors(d_correlator_outs,in);
-            multicorrelator_cpu.Carrier_wipeoff_multicorrelator_resampler(d_rem_carrier_phase_rad,d_carrier_phase_step_rad,d_rem_code_phase_chips,d_code_phase_step_chips,d_correlation_length_samples);
+            multicorrelator_cpu.Carrier_wipeoff_multicorrelator_resampler(d_rem_carrier_phase_rad, d_carrier_phase_step_rad, d_rem_code_phase_chips, d_code_phase_step_chips, d_correlation_length_samples);
 
             // UPDATE INTEGRATION TIME
-            CURRENT_INTEGRATION_TIME_S=(static_cast<double>(d_correlation_length_samples)/static_cast<double>(d_fs_in));
+            CURRENT_INTEGRATION_TIME_S = static_cast<double>(d_correlation_length_samples) / static_cast<double>(d_fs_in);
 
             // ################## PLL ##########################################################
             // Update PLL discriminator [rads/Ti -> Secs/Ti]
-            carr_phase_error_secs_Ti = pll_cloop_two_quadrant_atan(d_correlator_outs[1])/GPS_TWO_PI; //prompt output
+            carr_phase_error_secs_Ti = pll_cloop_two_quadrant_atan(d_correlator_outs[1]) / GPS_TWO_PI; //prompt output
             // Carrier discriminator filter
             // NOTICE: The carrier loop filter includes the Carrier Doppler accumulator, as described in Kaplan
             //d_carrier_doppler_hz = d_acq_carrier_doppler_hz + carr_phase_error_filt_secs_ti/INTEGRATION_TIME;
             // Input [s/Ti] -> output [Hz]
             d_carrier_doppler_hz = d_carrier_loop_filter.get_carrier_error(0.0, carr_phase_error_secs_Ti, CURRENT_INTEGRATION_TIME_S);
             // PLL to DLL assistance [Secs/Ti]
-            d_pll_to_dll_assist_secs_Ti = (d_carrier_doppler_hz*CURRENT_INTEGRATION_TIME_S)/GPS_L1_FREQ_HZ;
+            d_pll_to_dll_assist_secs_Ti = (d_carrier_doppler_hz * CURRENT_INTEGRATION_TIME_S) / GPS_L1_FREQ_HZ;
             // code Doppler frequency update
             d_code_freq_chips = GPS_L1_CA_CODE_RATE_HZ + ((d_carrier_doppler_hz * GPS_L1_CA_CODE_RATE_HZ) / GPS_L1_FREQ_HZ);
 
@@ -345,7 +348,7 @@ int gps_l1_ca_dll_pll_c_aid_tracking_cc::general_work (int noutput_items, gr_vec
             code_error_filt_secs_Ti = code_error_filt_chips*CURRENT_INTEGRATION_TIME_S/d_code_freq_chips; // [s/Ti]
             // DLL code error estimation [s/Ti]
             // TODO: PLL carrier aid to DLL is disabled. Re-enable it and measure performance
-            dll_code_error_secs_Ti=-code_error_filt_secs_Ti+d_pll_to_dll_assist_secs_Ti;
+            dll_code_error_secs_Ti = - code_error_filt_secs_Ti + d_pll_to_dll_assist_secs_Ti;
 
             // ################## CARRIER AND CODE NCO BUFFER ALIGNEMENT #######################
             // keep alignment parameters for the next input buffer
@@ -363,19 +366,17 @@ int gps_l1_ca_dll_pll_c_aid_tracking_cc::general_work (int noutput_items, gr_vec
             old_d_rem_code_phase_samples=d_rem_code_phase_samples;
             d_rem_code_phase_samples = K_blk_samples - static_cast<double>(d_correlation_length_samples); //rounding error < 1 sample
 
-
             // UPDATE REMNANT CARRIER PHASE
             CORRECTED_INTEGRATION_TIME_S=(static_cast<double>(d_correlation_length_samples)/static_cast<double>(d_fs_in));
             //remnant carrier phase [rad]
-            d_rem_carrier_phase_rad = fmod(d_rem_carrier_phase_rad + GPS_TWO_PI * d_carrier_doppler_hz * CORRECTED_INTEGRATION_TIME_S,GPS_TWO_PI);
+            d_rem_carrier_phase_rad = fmod(d_rem_carrier_phase_rad + GPS_TWO_PI * d_carrier_doppler_hz * CORRECTED_INTEGRATION_TIME_S, GPS_TWO_PI);
             // UPDATE CARRIER PHASE ACCUULATOR
             //carrier phase accumulator prior to update the PLL estimators (accumulated carrier in this loop depends on the old estimations!)
-            d_acc_carrier_phase_cycles -= d_carrier_doppler_hz*CORRECTED_INTEGRATION_TIME_S;
+            d_acc_carrier_phase_cycles -= d_carrier_doppler_hz * CORRECTED_INTEGRATION_TIME_S;
-
 
             //################### PLL COMMANDS #################################################
             //carrier phase step (NCO phase increment per sample) [rads/sample]
-            d_carrier_phase_step_rad=GPS_TWO_PI*d_carrier_doppler_hz/static_cast<double>(d_fs_in);
+            d_carrier_phase_step_rad = GPS_TWO_PI * d_carrier_doppler_hz / static_cast<double>(d_fs_in);
 
             //################### DLL COMMANDS #################################################
             //code phase step (Code resampler phase increment per sample) [chips/sample]
@@ -383,7 +384,6 @@ int gps_l1_ca_dll_pll_c_aid_tracking_cc::general_work (int noutput_items, gr_vec
             //remnant code phase [chips]
             d_rem_code_phase_chips = d_rem_code_phase_samples * (d_code_freq_chips / static_cast<double>(d_fs_in));
 
-
             // ####### CN0 ESTIMATION AND LOCK DETECTORS #######################################
             if (d_cn0_estimation_counter < CN0_ESTIMATION_SAMPLES)
                 {
@@ -428,7 +428,7 @@ int gps_l1_ca_dll_pll_c_aid_tracking_cc::general_work (int noutput_items, gr_vec
             current_synchro_data.Tracking_timestamp_secs = (static_cast<double>(d_sample_counter) + old_d_rem_code_phase_samples) / static_cast<double>(d_fs_in);
             // This tracking block aligns the Tracking_timestamp_secs with the start sample of the PRN, thus, Code_phase_secs=0
             current_synchro_data.Code_phase_secs = 0;
-            current_synchro_data.Carrier_phase_rads = GPS_TWO_PI*d_acc_carrier_phase_cycles;
+            current_synchro_data.Carrier_phase_rads = GPS_TWO_PI * d_acc_carrier_phase_cycles;
             current_synchro_data.Carrier_Doppler_hz = d_carrier_doppler_hz;
             current_synchro_data.CN0_dB_hz = d_CN0_SNV_dB_Hz;
             current_synchro_data.Flag_valid_pseudorange = false;
@@ -446,7 +446,7 @@ int gps_l1_ca_dll_pll_c_aid_tracking_cc::general_work (int noutput_items, gr_vec
                             d_last_seg = floor(d_sample_counter / d_fs_in);
                             std::cout << "Current input signal time = " << d_last_seg << " [s]" << std::endl;
                             DLOG(INFO) << "GPS L1 C/A Tracking CH " << d_channel <<  ": Satellite " << Gnss_Satellite(systemName[sys], d_acquisition_gnss_synchro->PRN)
-                                      << ", CN0 = " << d_CN0_SNV_dB_Hz << " [dB-Hz]" << std::endl;
+                                              << ", CN0 = " << d_CN0_SNV_dB_Hz << " [dB-Hz]" << std::endl;
                             //if (d_last_seg==5) d_carrier_lock_fail_counter=500; //DEBUG: force unlock!
                         }
                 }
@@ -456,7 +456,7 @@ int gps_l1_ca_dll_pll_c_aid_tracking_cc::general_work (int noutput_items, gr_vec
                         {
                             d_last_seg = floor(d_sample_counter / d_fs_in);
                             DLOG(INFO) << "Tracking CH " << d_channel <<  ": Satellite " << Gnss_Satellite(systemName[sys], d_acquisition_gnss_synchro->PRN)
-                                       << ", CN0 = " << d_CN0_SNV_dB_Hz << " [dB-Hz]";
+                                               << ", CN0 = " << d_CN0_SNV_dB_Hz << " [dB-Hz]";
                         }
                 }
         }
@@ -544,9 +544,13 @@ int gps_l1_ca_dll_pll_c_aid_tracking_cc::general_work (int noutput_items, gr_vec
             }
         }
 
-	consume_each(d_correlation_length_samples); // this is necessary in gr::block derivates
+    consume_each(d_correlation_length_samples); // this is necessary in gr::block derivates
-	d_sample_counter += d_correlation_length_samples; //count for the processed samples
+    d_sample_counter += d_correlation_length_samples; //count for the processed samples
 
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return 1; //output tracking result ALWAYS even in the case of d_enable_tracking==false
 }
 

src/algorithms/tracking/gnuradio_blocks/gps_l1_ca_dll_pll_optim_tracking_cc.cc

@@ -82,7 +82,10 @@ gps_l1_ca_dll_pll_make_optim_tracking_cc(
 void Gps_L1_Ca_Dll_Pll_Optim_Tracking_cc::forecast (int noutput_items,
         gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = d_gnuradio_forecast_samples; //set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = d_gnuradio_forecast_samples; //set the required available samples in each call
+        }
 }
 
 
@@ -338,10 +341,10 @@ int Gps_L1_Ca_Dll_Pll_Optim_Tracking_cc::general_work (int noutput_items, gr_vec
 {
     // stream to collect cout calls to improve thread safety
     std::stringstream tmp_str_stream;
-    double carr_error_hz;
+    double carr_error_hz = 0.0;
-    double carr_error_filt_hz;
+    double carr_error_filt_hz = 0.0;
-    double code_error_chips;
+    double code_error_chips = 0.0;
-    double code_error_filt_chips;
+    double code_error_filt_chips = 0.0;
 
     if (d_enable_tracking == true)
         {
@@ -604,6 +607,10 @@ int Gps_L1_Ca_Dll_Pll_Optim_Tracking_cc::general_work (int noutput_items, gr_vec
 
     consume_each(d_current_prn_length_samples); // this is necesary in gr_block derivates
     d_sample_counter += d_current_prn_length_samples; //count for the processed samples
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return 1; //output tracking result ALWAYS even in the case of d_enable_tracking==false
 }
 

src/algorithms/tracking/gnuradio_blocks/gps_l1_ca_dll_pll_tracking_cc.cc

@@ -83,7 +83,10 @@ gps_l1_ca_dll_pll_make_tracking_cc(
 void Gps_L1_Ca_Dll_Pll_Tracking_cc::forecast (int noutput_items,
         gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = static_cast<int>(d_vector_length) * 2; //set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = static_cast<int>(d_vector_length) * 2; //set the required available samples in each call
+        }
 }
 
 
@@ -204,16 +207,16 @@ void Gps_L1_Ca_Dll_Pll_Tracking_cc::start_tracking()
     d_code_freq_chips = radial_velocity * GPS_L1_CA_CODE_RATE_HZ;
     T_chip_mod_seconds = 1/d_code_freq_chips;
     T_prn_mod_seconds = T_chip_mod_seconds * GPS_L1_CA_CODE_LENGTH_CHIPS;
-    T_prn_mod_samples = T_prn_mod_seconds * static_cast<float>(d_fs_in);
+    T_prn_mod_samples = T_prn_mod_seconds * static_cast<double>(d_fs_in);
 
     d_current_prn_length_samples = round(T_prn_mod_samples);
 
     double T_prn_true_seconds = GPS_L1_CA_CODE_LENGTH_CHIPS / GPS_L1_CA_CODE_RATE_HZ;
-    double T_prn_true_samples = T_prn_true_seconds * static_cast<float>(d_fs_in);
+    double T_prn_true_samples = T_prn_true_seconds * static_cast<double>(d_fs_in);
-    double T_prn_diff_seconds=  T_prn_true_seconds - T_prn_mod_seconds;
+    double T_prn_diff_seconds = T_prn_true_seconds - T_prn_mod_seconds;
     double N_prn_diff = acq_trk_diff_seconds / T_prn_true_seconds;
     double corrected_acq_phase_samples, delay_correction_samples;
-    corrected_acq_phase_samples = fmod((d_acq_code_phase_samples + T_prn_diff_seconds * N_prn_diff * static_cast<float>(d_fs_in)), T_prn_true_samples);
+    corrected_acq_phase_samples = fmod((d_acq_code_phase_samples + T_prn_diff_seconds * N_prn_diff * static_cast<double>(d_fs_in)), T_prn_true_samples);
     if (corrected_acq_phase_samples < 0)
         {
             corrected_acq_phase_samples = T_prn_mod_samples + corrected_acq_phase_samples;
@@ -235,9 +238,9 @@ void Gps_L1_Ca_Dll_Pll_Tracking_cc::start_tracking()
 
     d_carrier_lock_fail_counter = 0;
     d_rem_code_phase_samples = 0;
-    d_rem_carr_phase_rad = 0;
+    d_rem_carr_phase_rad = 0.0;
-    d_acc_carrier_phase_rad = 0;
+    d_acc_carrier_phase_rad = 0.0;
-    d_acc_code_phase_secs = 0;
+    d_acc_code_phase_secs = 0.0;
 
     d_code_phase_samples = d_acq_code_phase_samples;
 
@@ -248,7 +251,6 @@ void Gps_L1_Ca_Dll_Pll_Tracking_cc::start_tracking()
     std::cout << "Tracking start on channel " << d_channel << " for satellite " << Gnss_Satellite(systemName[sys], d_acquisition_gnss_synchro->PRN) << std::endl;
     LOG(INFO) << "Starting tracking of satellite " << Gnss_Satellite(systemName[sys], d_acquisition_gnss_synchro->PRN) << " on channel " << d_channel;
 
-
     // enable tracking
     d_pull_in = true;
     d_enable_tracking = true;
@@ -336,10 +338,10 @@ int Gps_L1_Ca_Dll_Pll_Tracking_cc::general_work (int noutput_items, gr_vector_in
         gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
 {
     // process vars
-    double carr_error_hz;
+    double carr_error_hz = 0.0;
-    double carr_error_filt_hz;
+    double carr_error_filt_hz = 0.0;
-    double code_error_chips;
+    double code_error_chips = 0.0;
-    double code_error_filt_chips;
+    double code_error_filt_chips = 0.0;
 
     // Block input data and block output stream pointers
     const gr_complex* in = (gr_complex*) input_items[0]; //PRN start block alignment
@@ -623,7 +625,11 @@ int Gps_L1_Ca_Dll_Pll_Tracking_cc::general_work (int noutput_items, gr_vector_in
 
     consume_each(d_current_prn_length_samples); // this is necessary in gr::block derivates
     d_sample_counter += d_current_prn_length_samples; //count for the processed samples
-    //LOG(INFO)<<"GPS tracking output end on CH="<<this->d_channel << " SAMPLE STAMP="<<d_sample_counter<<std::endl;
+
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return 1; //output tracking result ALWAYS even in the case of d_enable_tracking==false
 }
 

src/algorithms/tracking/gnuradio_blocks/gps_l1_ca_dll_pll_tracking_gpu_cc.cc

@@ -83,7 +83,10 @@ gps_l1_ca_dll_pll_make_tracking_gpu_cc(
 void Gps_L1_Ca_Dll_Pll_Tracking_GPU_cc::forecast (int noutput_items,
         gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = static_cast<int>(d_vector_length) * 2; //set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = static_cast<int>(d_vector_length) * 2; //set the required available samples in each call
+        }
 }
 
 
@@ -286,10 +289,10 @@ int Gps_L1_Ca_Dll_Pll_Tracking_GPU_cc::general_work (int noutput_items, gr_vecto
         gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
 {
     // process vars
-    float carr_error_hz=0.0;
+    float carr_error_hz = 0.0;
-    float carr_error_filt_hz=0.0;
+    float carr_error_filt_hz = 0.0;
-    float code_error_chips=0.0;
+    float code_error_chips = 0.0;
-    float code_error_filt_chips=0.0;
+    float code_error_filt_chips = 0.0;
 
     // Block input data and block output stream pointers
     const gr_complex* in = (gr_complex*) input_items[0];
@@ -541,7 +544,10 @@ int Gps_L1_Ca_Dll_Pll_Tracking_GPU_cc::general_work (int noutput_items, gr_vecto
 
     consume_each(d_current_prn_length_samples); // this is necessary in gr::block derivates
     d_sample_counter += d_current_prn_length_samples; //count for the processed samples
-    //LOG(INFO)<<"GPS tracking output end on CH="<<this->d_channel << " SAMPLE STAMP="<<d_sample_counter<<std::endl;
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return 1; //output tracking result ALWAYS even in the case of d_enable_tracking==false
 }
 

src/algorithms/tracking/gnuradio_blocks/gps_l1_ca_tcp_connector_tracking_cc.cc

@@ -84,7 +84,10 @@ gps_l1_ca_tcp_connector_make_tracking_cc(
 void Gps_L1_Ca_Tcp_Connector_Tracking_cc::forecast (int noutput_items,
         gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = (int)d_vector_length*2; //set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = (int)d_vector_length*2; //set the required available samples in each call
+        }
 }
 
 
@@ -660,6 +663,10 @@ int Gps_L1_Ca_Tcp_Connector_Tracking_cc::general_work (int noutput_items, gr_vec
     consume_each(d_current_prn_length_samples); // this is necessary in gr::block derivates
     d_sample_counter_seconds = d_sample_counter_seconds + ( ((double)d_current_prn_length_samples) / (double)d_fs_in );
     d_sample_counter += d_current_prn_length_samples; //count for the processed samples
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return 1; //output tracking result ALWAYS even in the case of d_enable_tracking==false
 }
 

src/algorithms/tracking/gnuradio_blocks/gps_l2_m_dll_pll_tracking_cc.cc

@@ -82,7 +82,10 @@ gps_l2_m_dll_pll_make_tracking_cc(
 void gps_l2_m_dll_pll_tracking_cc::forecast (int noutput_items,
         gr_vector_int &ninput_items_required)
 {
-    ninput_items_required[0] = static_cast<int>(d_vector_length) * 2; //set the required available samples in each call
+    if (noutput_items != 0)
+        {
+            ninput_items_required[0] = static_cast<int>(d_vector_length) * 2; //set the required available samples in each call
+        }
 }
 
 
@@ -627,7 +630,10 @@ int gps_l2_m_dll_pll_tracking_cc::general_work (int noutput_items, gr_vector_int
         }
     consume_each(d_current_prn_length_samples); // this is necessary in gr::block derivates
     d_sample_counter += d_current_prn_length_samples; //count for the processed samples
-    //LOG(INFO)<<"GPS L2 tracking output end on CH="<<this->d_channel << " SAMPLE STAMP="<<d_sample_counter<<std::endl;
+    if((noutput_items == 0) || (ninput_items[0] == 0))
+        {
+            LOG(WARNING) << "noutput_items = 0";
+        }
     return 1; //output tracking result ALWAYS even in the case of d_enable_tracking==false
 }
 

src/core/libs/gnss_sdr_supl_client.cc

@@ -41,7 +41,7 @@ gnss_sdr_supl_client::gnss_sdr_supl_client()
     lac = 0;
     ci = 0;
     supl_ctx_new(&ctx);
-    assist = {0};
+    assist = {};
     server_port = 0;
     request = 0;
 }

src/core/system_parameters/rtcm.cc

@@ -1434,7 +1434,6 @@ int Rtcm::set_DF011(const Gnss_Synchro & gnss_synchro)
 int Rtcm::set_DF012(const Gnss_Synchro & gnss_synchro)
 {
     const double lambda = GPS_C_m_s / GPS_L1_FREQ_HZ;
-    double L1_pseudorange = gnss_synchro.Pseudorange_m;
     double ambiguity = std::floor( gnss_synchro.Pseudorange_m / 299792.458 );
     double gps_L1_pseudorange = std::round(( gnss_synchro.Pseudorange_m - ambiguity * 299792.458) / 0.02 );
     double gps_L1_pseudorange_c = static_cast<double>(gps_L1_pseudorange) * 0.02 + ambiguity * 299792.458;

src/core/system_parameters/sbas_telemetry_data.cc

@@ -467,8 +467,8 @@ int Sbas_Telemetry_Data::getbits(const unsigned char *buff, int pos, int len)
  *-----------------------------------------------------------------------------*/
 Sbas_Telemetry_Data::gtime_t Sbas_Telemetry_Data::epoch2time(const double *ep)
 {
-    const int doy[]={1, 32, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335};
+    const int doy[] = {1, 32, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335};
-    gtime_t time = {0};
+    gtime_t time = {};
     int days, sec, year = (int)ep[0], mon = (int)ep[1], day = (int)ep[2];
 
     if (year < 1970 || 2099 < year || mon < 1 || 12 < mon) return time;

src/tests/arithmetic/tracking_loop_filter_test.cc

@@ -30,8 +30,6 @@
  */
 
 #include "tracking_loop_filter.h"
-#include "tracking_2nd_PLL_filter.h"
-
 #include <gtest/gtest.h>
 
 TEST(TrackingLoopFilterTest, FirstOrderLoop)
@@ -51,21 +49,21 @@ TEST(TrackingLoopFilterTest, FirstOrderLoop)
     EXPECT_EQ( theFilter.get_include_last_integrator(), include_last_integrator );
     EXPECT_EQ( theFilter.get_order(), loop_order );
 
-    std::vector< float > sample_data = { 0, 0, 1.0, 0.0, 0.0, 0.0 };
+    std::vector< float > sample_data = { 0.0, 0.0, 1.0, 0.0, 0.0, 0.0 };
 
     theFilter.initialize( 0.0 );
 
-    float g1 = noise_bandwidth*4.0;
+    float g1 = noise_bandwidth * 4.0;
 
     float result = 0.0;
     for( unsigned int i = 0; i < sample_data.size(); ++i )
     {
         result = theFilter.apply( sample_data[i] );
-
+        EXPECT_FLOAT_EQ( result, sample_data[i]*g1 );
-        ASSERT_FLOAT_EQ( result, sample_data[i]*g1 );
     }
 }
 
+
 TEST(TrackingLoopFilterTest, FirstOrderLoopWithLastIntegrator)
 {
     int loop_order = 1;
@@ -83,20 +81,17 @@ TEST(TrackingLoopFilterTest, FirstOrderLoopWithLastIntegrator)
     EXPECT_EQ( theFilter.get_include_last_integrator(), include_last_integrator );
     EXPECT_EQ( theFilter.get_order(), loop_order );
 
-    std::vector< float > sample_data = { 0, 0, 1.0, 0.0, 0.0, 0.0 };
+    std::vector< float > sample_data = { 0.0, 0.0, 1.0, 0.0, 0.0, 0.0 };
     std::vector< float > expected_out = { 0.0, 0.0, 0.01, 0.02, 0.02, 0.02 };
 
     theFilter.initialize( 0.0 );
 
-    float g1 = noise_bandwidth*4.0;
-
     float result = 0.0;
     for( unsigned int i = 0; i < sample_data.size(); ++i )
     {
         result = theFilter.apply( sample_data[i] );
-        ASSERT_NEAR( result, expected_out[i], 1e-4 );
+        EXPECT_NEAR( result, expected_out[i], 1e-4 );
     }
-    std::cout << std::endl;
 }
 
 
@@ -118,7 +113,7 @@ TEST(TrackingLoopFilterTest, SecondOrderLoop)
     EXPECT_EQ( theFilter.get_include_last_integrator(), include_last_integrator );
     EXPECT_EQ( theFilter.get_order(), loop_order );
 
-    std::vector< float > sample_data = { 0, 0, 1.0, 0.0, 0.0, 0.0 };
+    std::vector< float > sample_data = { 0.0, 0.0, 1.0, 0.0, 0.0, 0.0 };
     std::vector< float > expected_out = { 0.0, 0.0, 13.37778, 0.0889, 0.0889, 0.0889 };
 
     theFilter.initialize( 0.0 );
@@ -127,11 +122,11 @@ TEST(TrackingLoopFilterTest, SecondOrderLoop)
     for( unsigned int i = 0; i < sample_data.size(); ++i )
     {
         result = theFilter.apply( sample_data[i] );
-
+        EXPECT_NEAR( result, expected_out[i], 1e-4 );
-        ASSERT_NEAR( result, expected_out[i], 1e-4 );
     }
 }
 
+
 TEST(TrackingLoopFilterTest, SecondOrderLoopWithLastIntegrator)
 {
     int loop_order = 2;
@@ -149,21 +144,17 @@ TEST(TrackingLoopFilterTest, SecondOrderLoopWithLastIntegrator)
     EXPECT_EQ( theFilter.get_include_last_integrator(), include_last_integrator );
     EXPECT_EQ( theFilter.get_order(), loop_order );
 
-    std::vector< float > sample_data = { 0, 0, 1.0, 0.0, 0.0, 0.0 };
+    std::vector< float > sample_data = { 0.0, 0.0, 1.0, 0.0, 0.0, 0.0 };
     std::vector< float > expected_out = { 0.0, 0.0,  0.006689, 0.013422, 0.013511, 0.013600 };
 
     theFilter.initialize( 0.0 );
 
-    float g1 = noise_bandwidth*4.0;
-
     float result = 0.0;
     for( unsigned int i = 0; i < sample_data.size(); ++i )
     {
         result = theFilter.apply( sample_data[i] );
-
+        EXPECT_NEAR( result, expected_out[i], 1e-4 );
-        ASSERT_NEAR( result, expected_out[i], 1e-4 );
     }
-    std::cout << std::endl;
 }
 
 
@@ -184,7 +175,7 @@ TEST(TrackingLoopFilterTest, ThirdOrderLoop)
     EXPECT_EQ( theFilter.get_include_last_integrator(), include_last_integrator );
     EXPECT_EQ( theFilter.get_order(), loop_order );
 
-    std::vector< float > sample_data = { 0, 0, 1.0, 0.0, 0.0, 0.0 };
+    std::vector< float > sample_data = { 0.0, 0.0, 1.0, 0.0, 0.0, 0.0 };
     std::vector< float > expected_out = { 0.0, 0.0, 15.31877, 0.04494, 0.04520, 0.04546};
 
     theFilter.initialize( 0.0 );
@@ -193,11 +184,11 @@ TEST(TrackingLoopFilterTest, ThirdOrderLoop)
     for( unsigned int i = 0; i < sample_data.size(); ++i )
     {
         result = theFilter.apply( sample_data[i] );
-
+        EXPECT_NEAR( result, expected_out[i], 1e-4 );
-        ASSERT_NEAR( result, expected_out[i], 1e-4 );
     }
 }
 
+
 TEST(TrackingLoopFilterTest, ThirdOrderLoopWithLastIntegrator)
 {
     int loop_order = 3;
@@ -215,20 +206,17 @@ TEST(TrackingLoopFilterTest, ThirdOrderLoopWithLastIntegrator)
     EXPECT_EQ( theFilter.get_include_last_integrator(), include_last_integrator );
     EXPECT_EQ( theFilter.get_order(), loop_order );
 
-    std::vector< float > sample_data = { 0, 0, 1.0, 0.0, 0.0, 0.0 };
+    std::vector< float > sample_data = { 0.0, 0.0, 1.0, 0.0, 0.0, 0.0 };
     std::vector< float > expected_out = { 0.0, 0.0, 0.007659, 0.015341, 0.015386, 0.015432};
 
     theFilter.initialize( 0.0 );
 
-    float g1 = noise_bandwidth*4.0;
-
     float result = 0.0;
     for( unsigned int i = 0; i < sample_data.size(); ++i )
     {
         result = theFilter.apply( sample_data[i] );
-        ASSERT_NEAR( result, expected_out[i], 1e-4 );
+        EXPECT_NEAR( result, expected_out[i], 1e-4 );
     }
-    std::cout << std::endl;
 }
 
 

src/tests/test_main.cc

@@ -73,6 +73,7 @@ DECLARE_string(log_dir);
 #include "arithmetic/magnitude_squared_test.cc"
 #include "arithmetic/multiply_test.cc"
 #include "arithmetic/code_generation_test.cc"
+#include "arithmetic/tracking_loop_filter_test.cc"
 #include "configuration/file_configuration_test.cc"
 #include "configuration/in_memory_configuration_test.cc"
 #include "control_thread/control_message_factory_test.cc"