How to make C++ algorithm working well packaged by xDM interfaces written in C on DM3730

I don't know anything about the xDM API. I can comment in general C++ programming terms. For the most part, C++ objects can be wrappered with C functions. A typical example:

/*--------my_c_functions.h------------*/
#ifndef _MY_C_FUNCTIONS_H_
#define _MY_C_FUNCTIONS_H_

#ifdef  __cplusplus
extern "C" {
#endif

void *my_c_open(int x);
int   my_c_do_something(void *p, int y);
void  my_c_close(void *p);

#ifdef  __cplusplus
}
#endif

#endif/*_MY_C_FUNCTIONS_H_*/


//----------my_c_functions.cpp----------------
#include "my_c_functions.h"
#include "my_object.hpp" // For MyObject


extern "C" {

void *my_c_open(int x)
{
  MyObject *pobj;
  pobj = new MyObject(x);
  return((void *)pobj);
}

int my_c_do_something(void *p, int y)
{
  int       status;
  MyObject *pobj = (MyObject *)p;
  status = pobj->DoSomething(y);
  return(status);
}

void my_c_close(void *p)
{
  MyObject *pobj = (MyObject *)p;
  delete pobj;
}

}//extern "C"

In the above example, the caller (xDM?) must save the object pointer somewhere. If you don't need to maintain context (one object only) than use a global variable within my_c_functions.cpp to save the object pointer.

I vaguely remember the TI C++ compiler does not need the extern "C" qualifiers. Every other C++ compiler will need them.

Hopefully some xDM experts can suggest a more elegant solution.