gistfile1.txt

void rtems_time_travel(long ticks)
{
   /* a clock tick in a timespec structure */
   struct timespec tick;

   /* number of seconds elapsed */
   uint32_t seconds;


   /* Convert the tick quantum to a timespec */

   /* convert a clock tick into nanoseconds */
   tick.tv_nsec = _TOD_Microseconds_per_tick * 1000 * ticks;

   /* the number of seconds is 0 (assumed the clock tick fits in the
    * nanoseconds field */
   tick.tv_sec = 0;

   /* Update the counter of ticks since boot */
   _Watchdog_Ticks_since_boot += ticks;

   /* Update the timespec format uptime */
   (void) _Timespec_Add_to(&_TOD_Uptime , &tick);

   /* Update the timespec format TOD */
   seconds = _Timespec_Add_to(&_TOD_Now , &tick);

   /* adjust ticks chain*/
   _Watchdog_Adjust_ticks(ticks);

   /* If one second has passed (or more)*/
   if(seconds > 0) {

       /* adjust seconds chain */
       _Watchdog_Adjust_seconds(WATCHDOG_FORWARD, seconds);
   }

}

/* watchdog.inl */ 

/**
 *  @brief adjust the watchdog ticks chain forward or backwards by a specified
 *  amount of units
 *
 *  This routine adjusts the ticks watchdog chain in the forward
 *  direction for UNITS ticks (ticks are monotonic). This is invoked when there
 *  a partition context switch

 *  @param[in] units the amount of units to adjust the chain
 */
RTEMS_INLINE_ROUTINE void _Watchdog_Adjust_ticks(
                                                 Watchdog_Interval units
                                                 )
{
   /* adjust the watchdog seconds chain */
   _Watchdog_Adjust(&_Watchdog_Ticks_chain , WATCHDOG_FORWARD , units);
}