-----------

// The code below is located the dynamically loaded DLL.
/* Global variable. */
int *p;
#pragma omp threadprivate(p)

extern "C" __declspec(dllexport) int MyFunc1(void)
{
  int i;
  #pragma omp parallel for
  for (i = 0; i < n; i++) {
     MyFunc2(i);
  }
   return TRUE;
}

void MyFunc2(void)
{
    p  = malloc(sizeof(int));
   *p  = 0;
    printf(“value = %d”,*p);
    free(p);
}

-----------

DWORD dwTlsIdx;

extern "C" __declspec(dllexport) int MyFunc1(void)
{
   int i;
   #pragma omp parallel for
   for (i = 0; i < n; i++) {
      MyFunc2(i);
   }
   return TRUE;
}

void MyFunc2(void)
{
    int **pp = (int **)TlsGetValue(dwTlsIdx);
    *pp = malloc(sizeof(int));
    **pp  = 0;
    printf(“value = %d”,**pp);
    free(*pp);
}

void MyFunc2(void)
{
    int **pp = (int **)TlsGetValue(dwTlsIdx);
    if (pp == NULL)
    {
       pp = malloc(sizeof(int *));
       TlsSetValue(dwTlsIdx, pp);
    }
    *pp = malloc(sizeof(int));
    **pp  = 0;
    printf(“value = %d”,**pp);
    free(*pp);
}

DWORD WINAPI TlsAlloc(void);