Apply fixes by clang-tidy

src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.cc

@@ -47,7 +47,7 @@
 #endif
 
 Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface* configuration,
-    std::string role, unsigned int in_stream, unsigned int out_stream,
+    const std::string& role, unsigned int in_stream, unsigned int out_stream,
     boost::shared_ptr<gr::msg_queue> queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream), queue_(std::move(queue))
 {
     std::string default_item_type = "gr_complex";

src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h

@@ -45,7 +45,7 @@ class Ad9361FpgaSignalSource : public GNSSBlockInterface
 {
 public:
     Ad9361FpgaSignalSource(ConfigurationInterface* configuration,
-        std::string role, unsigned int in_stream,
+        const std::string& role, unsigned int in_stream,
         unsigned int out_stream, boost::shared_ptr<gr::msg_queue> queue);
 
     ~Ad9361FpgaSignalSource();

src/algorithms/signal_source/adapters/custom_udp_signal_source.cc

@@ -43,7 +43,7 @@ using google::LogMessage;
 
 
 CustomUDPSignalSource::CustomUDPSignalSource(ConfigurationInterface* configuration,
-    std::string role, unsigned int in_stream, unsigned int out_stream,
+    const std::string& role, unsigned int in_stream, unsigned int out_stream,
     boost::shared_ptr<gr::msg_queue> queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream), queue_(std::move(queue))
 {
     // DUMP PARAMETERS

src/algorithms/signal_source/adapters/custom_udp_signal_source.h

@@ -54,7 +54,7 @@ class CustomUDPSignalSource : public GNSSBlockInterface
 {
 public:
     CustomUDPSignalSource(ConfigurationInterface* configuration,
-        std::string role, unsigned int in_stream,
+        const std::string& role, unsigned int in_stream,
         unsigned int out_stream, boost::shared_ptr<gr::msg_queue> queue);
 
     virtual ~CustomUDPSignalSource();

src/algorithms/signal_source/adapters/fmcomms2_signal_source.cc

@@ -44,7 +44,7 @@
 using google::LogMessage;
 
 Fmcomms2SignalSource::Fmcomms2SignalSource(ConfigurationInterface* configuration,
-    std::string role, unsigned int in_stream, unsigned int out_stream,
+    const std::string& role, unsigned int in_stream, unsigned int out_stream,
     boost::shared_ptr<gr::msg_queue> queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream), queue_(std::move(queue))
 {
     std::string default_item_type = "gr_complex";

src/algorithms/signal_source/adapters/fmcomms2_signal_source.h

@@ -46,7 +46,7 @@ class Fmcomms2SignalSource : public GNSSBlockInterface
 {
 public:
     Fmcomms2SignalSource(ConfigurationInterface* configuration,
-        std::string role, unsigned int in_stream,
+        const std::string& role, unsigned int in_stream,
         unsigned int out_stream, boost::shared_ptr<gr::msg_queue> queue);
 
     virtual ~Fmcomms2SignalSource();

src/algorithms/signal_source/adapters/osmosdr_signal_source.cc

@@ -44,7 +44,7 @@ using google::LogMessage;
 
 
 OsmosdrSignalSource::OsmosdrSignalSource(ConfigurationInterface* configuration,
-    std::string role, unsigned int in_stream, unsigned int out_stream,
+    const std::string& role, unsigned int in_stream, unsigned int out_stream,
     boost::shared_ptr<gr::msg_queue> queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream), queue_(std::move(queue))
 {
     // DUMP PARAMETERS

src/algorithms/signal_source/adapters/osmosdr_signal_source.h

@@ -52,7 +52,7 @@ class OsmosdrSignalSource : public GNSSBlockInterface
 {
 public:
     OsmosdrSignalSource(ConfigurationInterface* configuration,
-        std::string role, unsigned int in_stream,
+        const std::string& role, unsigned int in_stream,
         unsigned int out_stream, boost::shared_ptr<gr::msg_queue> queue);
 
     virtual ~OsmosdrSignalSource();

src/algorithms/signal_source/adapters/plutosdr_signal_source.cc

@@ -41,7 +41,7 @@ using google::LogMessage;
 
 
 PlutosdrSignalSource::PlutosdrSignalSource(ConfigurationInterface* configuration,
-    std::string role, unsigned int in_stream, unsigned int out_stream,
+    const std::string& role, unsigned int in_stream, unsigned int out_stream,
     boost::shared_ptr<gr::msg_queue> queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream), queue_(std::move(queue))
 {
     std::string default_item_type = "gr_complex";

src/algorithms/signal_source/adapters/plutosdr_signal_source.h

@@ -48,7 +48,7 @@ class PlutosdrSignalSource : public GNSSBlockInterface
 {
 public:
     PlutosdrSignalSource(ConfigurationInterface* configuration,
-        std::string role, unsigned int in_stream,
+        const std::string& role, unsigned int in_stream,
         unsigned int out_stream, boost::shared_ptr<gr::msg_queue> queue);
 
     virtual ~PlutosdrSignalSource();