artdaq

To prevent incidental use of the default constructor in CommandableFragmentGenerator make it non-default constructible.

//CommandableFragmentGenerator();
  CommandableFragmentGenerator() = delete;

I tested the proposed change by running run_demo.sh using the HEAD of develop and ardaq_demo v3_03_01.

[mu2etrg@mu2edaq11 artdaq]$ git diff
diff --git a/artdaq/Application/CommandableFragmentGenerator.cc b/artdaq/Application/CommandableFragmentGenerator.cc
index 6800134..3fa116c 100644
--- a/artdaq/Application/CommandableFragmentGenerator.cc
+++ b/artdaq/Application/CommandableFragmentGenerator.cc
@@ -43,6 +43,7 @@
 #define TLVL_SENDEMPTYFRAGMENTS 19
 #define TLVL_CHECKWINDOWS 14

+/*
 artdaq::CommandableFragmentGenerator::CommandableFragmentGenerator()
        : mutex_()
        , requestReceiver_(nullptr)
@@ -82,7 +83,7 @@ artdaq::CommandableFragmentGenerator::CommandableFragmentGenerator()
        , instance_name_for_metrics_("FragmentGenerator")
        , sleep_on_stop_us_(0)
 {}
-
+*/
 artdaq::CommandableFragmentGenerator::CommandableFragmentGenerator(const fhicl::ParameterSet& ps)
        : mutex_()
        , requestReceiver_(nullptr)
diff --git a/artdaq/Application/CommandableFragmentGenerator.hh b/artdaq/Application/CommandableFragmentGenerator.hh
index e0ac98f..f63583d 100644
--- a/artdaq/Application/CommandableFragmentGenerator.hh
+++ b/artdaq/Application/CommandableFragmentGenerator.hh
@@ -145,7 +145,12 @@ namespace artdaq
                 *
                 * This constructor default-initializes all parameters
                 */
-               CommandableFragmentGenerator();
+//             CommandableFragmentGenerator();
+               CommandableFragmentGenerator()=delete;
+               CommandableFragmentGenerator(CommandableFragmentGenerator const& ) = delete;
+               CommandableFragmentGenerator(CommandableFragmentGenerator && ) = delete;
+                CommandableFragmentGenerator& operator= (CommandableFragmentGenerator const&) = delete;
+               CommandableFragmentGenerator& operator= (CommandableFragmentGenerator &&) = delete;

                /**
                 * \brief CommandableFragmentGenerator Constr