Add qc example

examples/qc/runQCProducer.cxx

@@ -0,0 +1,66 @@
+/********************************************************************************
+ *    Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH    *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+
+#include "runFairMQDevice.h"
+#include "FairMQDevice.h"
+
+class QCProducer : public FairMQDevice
+{
+  public:
+    QCProducer()
+        : fDoQC(false)
+        , fCounter(0)
+        , fInterval(100)
+    {
+        OnData("data1", &QCProducer::HandleData);
+    }
+
+    void InitTask() override
+    {
+        GetConfig()->Subscribe<std::string>("qc", [&](const std::string& key, std::string value) {
+            if (key == "qc") {
+                if (value == "active") {
+                    fDoQC.store(true);
+                } else if (value == "inactive") {
+                    fDoQC.store(false);
+                }
+            }
+        });
+    }
+
+  protected:
+    bool HandleData(FairMQMessagePtr& msg, int)
+    {
+        if (fDoQC.load() == true) {
+            if (++fCounter == fInterval) {
+                fCounter = 0;
+                FairMQMessagePtr msgCopy(NewMessage());
+                msgCopy->Copy(*msg);
+                if (Send(msg, "qc") < 0) {
+                    return false;
+                }
+            }
+        }
+
+        if (Send(msg, "data2") < 0) {
+            return false;
+        }
+
+        return true;
+    }
+
+    void ResetTask() override { GetConfig()->Unsubscribe<std::string>("qc"); }
+
+  private:
+    std::atomic<bool> fDoQC;
+    int fCounter;
+    int fInterval;
+};
+
+void addCustomOptions(boost::program_options::options_description& /*options*/) {}
+FairMQDevicePtr getDevice(const fair::mq::ProgOptions& /*config*/) { return new QCProducer(); }