Add printConfig method to MSR plugin

src/sensors/msr/MSRConfigurator.cpp

@@ -16,10 +16,7 @@ MSRConfigurator::~MSRConfigurator() {}
 
 void MSRConfigurator::sensorBase(MSRSensorBase& s, CFG_VAL config) {
 	ADD {
-		if (boost::iequals(val.first, "delta")) {
-			//it is explicitly stated to be off --> set it to false
-			s.setDelta( !(val.second.data() == "off") );
-		} else if (boost::iequals(val.first, "metric")){
+		if (boost::iequals(val.first, "metric")){
 			s.setMetric(std::stoull(val.second.data(),nullptr,16));
 		}
 	}

src/sensors/msr/MSRSensorBase.h

@@ -14,7 +14,8 @@ class MSRSensorBase : public SensorBase {
 public:
 	MSRSensorBase(const std::string& name) :
 		SensorBase(name), _cpu(0), _metric(0) {
-
+	  //default delta to true, as msr has only monotonic sensors usually
+      _delta = true;
 	}
 	
 	MSRSensorBase(const MSRSensorBase& other)=default;
@@ -40,6 +41,11 @@ public:
 		_metric = metric;
 	}
 
+	void printConfig(LOG_LEVEL ll, LOGGER& lg) {
+        LOG_VAR(ll) << "     CPU:    " << _cpu;
+        LOG_VAR(ll) << "     Metric: " << _metric;
+    }
+
 protected:
 	unsigned int _cpu;
 	uint64_t _metric;

src/sensors/msr/MSRSensorGroup.cpp

@@ -184,3 +184,14 @@ void MSRSensorGroup::program_fixed(){
 void MSRSensorGroup::addCpu(unsigned int cpu){
 	cpuToFd[cpu] = -1; /* -1 because no file descriptor has been assigned yet. */
 }
+
+void MSRSensorGroup::printConfig(LOG_LEVEL ll) {
+    std::stringstream ss;
+    const char* separator = "";
+    for (auto &kv : cpuToFd) {
+      ss << separator << kv.first;
+      separator = ", ";
+    }
+
+    LOG_VAR(ll) << "   CPUs:  " << ss.str();
+}

src/sensors/msr/MSRSensorGroup.h

@@ -28,6 +28,8 @@ public:
 	void addCpu(unsigned int cpu);
 	//void init(boost::asio::io_service& io) override;
 
+	void printConfig(LOG_LEVEL ll) override;
+
 private:
 	void read() override;
 	void readAsync() override;