Iterating the VMTI packet and printing the results (C++).

This is an example of STD0903 Converter usage for VMTI data traversing. This code snippet demonstrates how to go over the VMTI packet and print out the data.

• Add references to STD0903ConvLib.dll and lib files, include a header file.

  #include "ISTD0903Conv.h"

• Decode the data buffer or fill it with the data.
• Traverse the data tree.

  VARIANT vt;
  
  // Iterate existing local data items
  TargetLocalDataIterator ld_it;
  for (ld_it = pPcktDec->GetVTargetLocalData().begin(); ld_it != pPcktDec->GetVTargetLocalData().end(); ld_it++)
  {
          VariantInit(&vt);
          VTargetLocalDataTag tag = (*ld_it).first;
          pPcktDec->DecodeValue(tag, &vt);
          cout << "Tag " << tag << " : " << pVmtiConv->TargetLocalDataTagToString(tag) << " - ";
          PrintData(vt);
          if (tag == VTargetLocalDataTag::UNIX_Time_Stamp)
                  cout << " (" << pVmtiConv->TargetLocalDataToHRString(tag, vt) << ")";
          cout << endl;
          VariantClear(&vt);
  }
  
  // Iterate existing target series items
  TargetSeriesIterator ts_it;
  for (ts_it = pPcktDec->GetVTargetSeries().begin(); ts_it != pPcktDec->GetVTargetSeries().end(); ts_it++)
  {
          VTargetPack* pTargetPack = *ts_it;
          pTargetPack->SetRevision(pPcktDec->Revision);
          TargetPackIterator tp_it;
  
          cout << "\tTarget Id - " << pTargetPack->TargetID << endl;
          for (tp_it = pTargetPack->GetVTargetPackItems().begin(); tp_it != pTargetPack->GetVTargetPackItems().end(); tp_it++)
          {
                  VariantInit(&vt);
                  VTargetPackTag tag = (*tp_it).first;
                  pTargetPack->DecodeValue(tag, &vt);
                  cout << "\t\tTag " << tag << " : " << pVmtiConv->TargetPackTagToString(tag) << " - ";
                  if (tag < Target_Location)
                          PrintData(vt);
                  else
                  {
                          PrintHierarchyData(pVmtiConv, tag, vt);
                  }
                  cout << endl;
                  VariantClear(&vt);
          }
  }
  cout << endl;

Here is a code of the PrintData helper function used above:

void PrintData(ISTD0903Converter* conv, VARIANT& vt)
{
        switch (vt.vt)
        {
        case VT_BSTR:
                cout << (char*)(_bstr_t)vt;
                break;

        case VT_UI1:
        case VT_UI2:
        case VT_UI4:
                cout << vt.uintVal;
                break;
        case VT_UI8:
                cout << vt.ullVal;
                break;
        case VT_R4:
                cout << vt.fltVal;
                break;

        case VT_R8:
                cout << vt.dblVal;
                break;
        }
}

For the complete sample source please see Sample Code - MISB 0903 Converter Demo Application (C++)