Fetching data works..

src/ecmcDAQDataChannel.cpp

@@ -48,7 +48,7 @@ void ecmcDAQDataChannel::connectToDataSources() {
     (*pDataItem)->connectToSource();
     dataElementCount_ = dataElementCount_ + (*pDataItem)->getDataElementCount();
   }
-  printf("ecmcDAQDataChannel::connectToDataSources()::dataElementCount_=%d\n",dataElementCount_);
+  printf("ecmcDAQDataChannel::connectToDataSources()::dataElementCount_=%zu\n",dataElementCount_);
   dataSourcesLinked_ = 1;
 }
 
@@ -63,27 +63,33 @@ double ecmcDAQDataChannel::getType() {
 double ecmcDAQDataChannel::getData(int first){
   if(first) {
     currItemIndex_ = 0;
-  } else {
-    first = false;
+    returnedDataCounter_= 0;;
   }
 
-  if(dataItems_[currItemIndex_]->empty() && currItemIndex_+1 < itemCounter_) {
-    // get first index of next dataItem
-    first = true;
-    currItemIndex_++;
+  // Get data from the first index
+  dataItems_[currItemIndex_]->resetIndex(first);
+  
+  if(dataItems_[currItemIndex_]->empty()){
+    if(currItemIndex_ < itemCounter_ - 1) {     
+      first = true;
+      currItemIndex_++;
+      dataItems_[currItemIndex_]->resetIndex(first);
+    } else {
+      printf("ecmcDAQDataChannel::ERROR: No more data item in list but array still requires data (items %zu)\n",itemCounter_);
+      return -1;
+    }
   }
 
   if(currItemIndex_ >= itemCounter_) {
-    printf("No more data here!!!\n");
+    printf("ecmcDAQDataChannel::ERROR: item counter out of range (items %zu)\n",itemCounter_);
     return 0;
     //throw std::runtime_error( "Item index out of range");
   }
   
   returnedDataCounter_++;
-  return dataItems_[currItemIndex_]->getData(first);
+  return dataItems_[currItemIndex_]->getData();
 }
 
-bool  ecmcDAQDataChannel::empty(){
-  return 1;
-  return dataElementCount_>=returnedDataCounter_;
+bool  ecmcDAQDataChannel::empty(){  
+  return returnedDataCounter_>=dataElementCount_;
 }