static void* TimerTask(void* unused)
{
// Initialization
mach_timebase_info_data_t tbi;
mach_timebase_info(&tbi);
double invRatio = ((double)tbi.denom) / ((double)tbi.numer);
double timeResNanos = gTimeResMilli * 1000000; // In nanosecond
double nextDateNanos, curDateNanos = mach_absolute_time() / invRatio;
while (1) {
pthread_testcancel();
nextDateNanos = mach_absolute_time () / invRatio;
while (curDateNanos < nextDateNanos) {
long call = gTimeResMilli;
while (call--) ClockHandler(gMem);
curDateNanos += timeResNanos;
}
mach_wait_until(curDateNanos * invRatio);
}
return 0;
}
void InitClock()
{
#ifdef CLOCK_SUPPORT
struct itimerval value, ovalue;
print_time = TRUE;
if (getitimer(ITIMER_REAL, &value)!= 0) {
sprintf(message,"getitimer() failed: %s", strerror(errno));
ERROR_MSG(message);
}
value.it_interval.tv_sec = CLOCK_INTERVAL;
value.it_value.tv_sec = CLOCK_INTERVAL;
value.it_interval.tv_usec = 0;
if (setitimer(ITIMER_REAL, &value, &ovalue)!= 0) {
sprintf(message,"setitimer() failed: %s", strerror(errno));
ERROR_MSG(message);
}
ClockHandler(0);
#endif
}
