How would you set the object data that is shared between threads and needs to be updated once after the complete cycle of (say) two threads in busy loop?

CRITICAL_SECTION critical_section_;

int value; //needs to be updated once after the cycle of any number of threads running in busy loop

void ThreadsFunction(int i)
{

    while (true)
    {
        EnterCriticalSection(&critical_section_);
                /* Lines of Code */
        LeaveCriticalSection(&critical_section_);
    }
}