Fix a bug that could cause a crash on receiver stopping

If a channel event was happening after flowgraph stop and before flowgraph disconnection, it caused a crash. This was avoided by sleeping the control thread during 500 ms after disconnection and before the block destructors were called, so the event could be processed, but this was not a robust solution.

src/algorithms/acquisition/adapters/beidou_b1i_pcps_acquisition.cc

@@ -94,6 +94,7 @@ BeidouB1iPcpsAcquisition::BeidouB1iPcpsAcquisition(
 
 void BeidouB1iPcpsAcquisition::stop_acquisition()
 {
+    acquisition_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/beidou_b3i_pcps_acquisition.cc

@@ -92,6 +92,7 @@ BeidouB3iPcpsAcquisition::BeidouB3iPcpsAcquisition(
 
 void BeidouB3iPcpsAcquisition::stop_acquisition()
 {
+    acquisition_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/galileo_e1_pcps_8ms_ambiguous_acquisition.cc

@@ -121,6 +121,7 @@ GalileoE1Pcps8msAmbiguousAcquisition::GalileoE1Pcps8msAmbiguousAcquisition(
 
 void GalileoE1Pcps8msAmbiguousAcquisition::stop_acquisition()
 {
+    acquisition_cc_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/galileo_e1_pcps_ambiguous_acquisition.cc

@@ -94,6 +94,7 @@ GalileoE1PcpsAmbiguousAcquisition::GalileoE1PcpsAmbiguousAcquisition(
 
 void GalileoE1PcpsAmbiguousAcquisition::stop_acquisition()
 {
+    acquisition_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/galileo_e1_pcps_cccwsr_ambiguous_acquisition.cc

@@ -114,6 +114,8 @@ GalileoE1PcpsCccwsrAmbiguousAcquisition::GalileoE1PcpsCccwsrAmbiguousAcquisition
 
 void GalileoE1PcpsCccwsrAmbiguousAcquisition::stop_acquisition()
 {
+    acquisition_cc_->set_state(0);
+    acquisition_cc_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/galileo_e1_pcps_quicksync_ambiguous_acquisition.cc

@@ -155,6 +155,8 @@ GalileoE1PcpsQuickSyncAmbiguousAcquisition::GalileoE1PcpsQuickSyncAmbiguousAcqui
 
 void GalileoE1PcpsQuickSyncAmbiguousAcquisition::stop_acquisition()
 {
+    acquisition_cc_->set_state(0);
+    acquisition_cc_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/galileo_e1_pcps_tong_ambiguous_acquisition.cc

@@ -125,6 +125,8 @@ GalileoE1PcpsTongAmbiguousAcquisition::GalileoE1PcpsTongAmbiguousAcquisition(
 
 void GalileoE1PcpsTongAmbiguousAcquisition::stop_acquisition()
 {
+    acquisition_cc_->set_state(0);
+    acquisition_cc_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/galileo_e5a_noncoherent_iq_acquisition_caf.cc

@@ -130,6 +130,8 @@ GalileoE5aNoncoherentIQAcquisitionCaf::GalileoE5aNoncoherentIQAcquisitionCaf(
 
 void GalileoE5aNoncoherentIQAcquisitionCaf::stop_acquisition()
 {
+    acquisition_cc_->set_state(0);
+    acquisition_cc_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/galileo_e5a_pcps_acquisition.cc

@@ -93,6 +93,7 @@ GalileoE5aPcpsAcquisition::GalileoE5aPcpsAcquisition(ConfigurationInterface* con
 
 void GalileoE5aPcpsAcquisition::stop_acquisition()
 {
+    acquisition_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/glonass_l1_ca_pcps_acquisition.cc

@@ -94,6 +94,7 @@ GlonassL1CaPcpsAcquisition::GlonassL1CaPcpsAcquisition(
 
 void GlonassL1CaPcpsAcquisition::stop_acquisition()
 {
+    acquisition_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/glonass_l2_ca_pcps_acquisition.cc

@@ -93,6 +93,7 @@ GlonassL2CaPcpsAcquisition::GlonassL2CaPcpsAcquisition(
 
 void GlonassL2CaPcpsAcquisition::stop_acquisition()
 {
+    acquisition_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_acquisition.cc

@@ -96,6 +96,7 @@ GpsL1CaPcpsAcquisition::GpsL1CaPcpsAcquisition(
 
 void GpsL1CaPcpsAcquisition::stop_acquisition()
 {
+    acquisition_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_acquisition_fine_doppler.cc

@@ -100,6 +100,8 @@ GpsL1CaPcpsAcquisitionFineDoppler::GpsL1CaPcpsAcquisitionFineDoppler(
 
 void GpsL1CaPcpsAcquisitionFineDoppler::stop_acquisition()
 {
+    acquisition_cc_->set_state(0);
+    acquisition_cc_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_assisted_acquisition.cc

@@ -92,6 +92,8 @@ GpsL1CaPcpsAssistedAcquisition::GpsL1CaPcpsAssistedAcquisition(
 
 void GpsL1CaPcpsAssistedAcquisition::stop_acquisition()
 {
+    acquisition_cc_->set_active(false);
+    acquisition_cc_->set_state(0);
 }
 
 

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_opencl_acquisition.cc

@@ -119,6 +119,8 @@ GpsL1CaPcpsOpenClAcquisition::GpsL1CaPcpsOpenClAcquisition(
 
 void GpsL1CaPcpsOpenClAcquisition::stop_acquisition()
 {
+    acquisition_cc_->set_active(false);
+    acquisition_cc_->set_state(0);
 }
 
 

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_quicksync_acquisition.cc

@@ -148,6 +148,8 @@ GpsL1CaPcpsQuickSyncAcquisition::GpsL1CaPcpsQuickSyncAcquisition(
 
 void GpsL1CaPcpsQuickSyncAcquisition::stop_acquisition()
 {
+    acquisition_cc_->set_state(0);
+    acquisition_cc_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_tong_acquisition.cc

@@ -110,6 +110,8 @@ GpsL1CaPcpsTongAcquisition::GpsL1CaPcpsTongAcquisition(
 
 void GpsL1CaPcpsTongAcquisition::stop_acquisition()
 {
+    acquisition_cc_->set_state(0);
+    acquisition_cc_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/gps_l2_m_pcps_acquisition.cc

@@ -93,6 +93,7 @@ GpsL2MPcpsAcquisition::GpsL2MPcpsAcquisition(
 
 void GpsL2MPcpsAcquisition::stop_acquisition()
 {
+    acquisition_->set_active(false);
 }
 
 

src/algorithms/acquisition/adapters/gps_l5i_pcps_acquisition.cc

@@ -94,6 +94,7 @@ GpsL5iPcpsAcquisition::GpsL5iPcpsAcquisition(
 
 void GpsL5iPcpsAcquisition::stop_acquisition()
 {
+    acquisition_->set_active(false);
 }