Remove useless code

examples/n-m/receiver.cxx

@@ -29,16 +29,13 @@ struct TFBuffer
     chrono::steady_clock::time_point end;
 };
 
-class Receiver : public FairMQDevice
+struct Receiver : fair::mq::Device
 {
-  public:
     Receiver()
     {
         OnData("data", &Receiver::HandleData);
     }
 
-    ~Receiver() = default;
-
     void InitTask() override
     {
         fNumSenders = GetConfig()->GetValue<int>("num-senders");
@@ -46,7 +43,6 @@ class Receiver : public FairMQDevice
         fMaxTimeframes = GetConfig()->GetValue<int>("max-timeframes");
     }
 
-  protected:
     bool HandleData(FairMQParts& parts, int /* index */)
     {
         Header& h = *(static_cast<Header*>(parts.At(0)->GetData()));
@@ -93,6 +89,7 @@ class Receiver : public FairMQDevice
         }
     }
 
+  private:
     unordered_map<uint16_t, TFBuffer> fBuffer;
     unordered_set<uint16_t> fDiscardedSet;
 

examples/n-m/sender.cxx

@@ -17,11 +17,8 @@ using namespace std;
 using namespace example_n_m;
 namespace bpo = boost::program_options;
 
-class Sender : public FairMQDevice
+struct Sender : fair::mq::Device
 {
-  public:
-    Sender() = default;
-
     void InitTask() override
     {
         fIndex = GetConfig()->GetProperty<int>("sender-index");

examples/n-m/synchronizer.cxx

@@ -15,11 +15,8 @@
 using namespace std;
 namespace bpo = boost::program_options;
 
-class Synchronizer : public FairMQDevice
+struct Synchronizer : fair::mq::Device
 {
-  public:
-    Synchronizer() = default;
-
     bool ConditionalRun() override
     {
         FairMQMessagePtr msg(NewSimpleMessage(fTimeframeId));
@@ -35,6 +32,7 @@ class Synchronizer : public FairMQDevice
         return true;
     }
 
+  private:
     uint16_t fTimeframeId = 0;
 };