OCIContextSetValue: can the structure contain a pointer to a C++ object?

Question

I have a working external stored procedure that's implemented in C++ (with extern "C"). I'm using OCIContextSetValue to share a struct (allocated with OCIMemoryAlloc for OCI_DURATION_SESSION) between calls. My problem is that I now also need to share a C++ object between calls.
I extended the struct with a pointer to the object (created with "new MyObject"). I free the object by calling another proc from a "before logoff" trigger. It works in simple tests, but since I don't know what processes are involved, I'm afraid that the memory might go out of scope.
Is this a valid strategy? Is there an alternative? Any guidance would be appreciated!

Answer 1

How could i do this Wrapper function?
Respectively how could i handle with the following problem in C#
i have this in my header-file of the SharedLib.h
typedef struct {
LVBoolean status;
int32_t code;
LStrHandle source;
} TD1;
void __cdecl IP_Supply_GET_Current(TD1 *FehlerEingang, LVBoolean *Start,
TD1 *FehlerAusgang, LVBoolean *End);
long __cdecl LVDLLStatus(char *errStr, int errStrLen, void *module);
 and try to make a project with this rudimentary start:
namespace IP_GET_Current
/** interface TestInterface
Boolean status{
get;
set;
public class Class1 /**: TestInterface**/
[DllImport("C:\\SharedLib.dll", EntryPoint = "IP_Supply_GET_Current", ExactSpelling = false)];
static extern unsafe void IP_Supply_GET_Current(Int32 code, Boolean Start, Boolean End, Int32 code);
public struct TD1{
Boolean status;
Int32 code;
Boolean Start;
Boolean End;
public Main()
IP_Supply_GET_Current(3,true,true,2);
How can i start to solve the problemß
Thanks