Declared in file: hzDate.h
Defined in file : hzDate.cpp

Function Logic:

Function body:

unsigned long RealtimeNano (void)
{
   struct timespec tx ;
   uint64_t    nano ;
   clock_gettime(CLOCK_MONOTONIC, &tx) ;
   nano = tx.tv_sec ;
   nano *= 1000000000;
   nano += tx.tv_nsec ;
   return nano ;
}