_WCRTLINK unsigned _dos_settime( struct dostime_t *time )
{
DATETIME dt;
DosGetDateTime( &dt );
dt.hours = time->hour;
dt.minutes = time->minute;
dt.seconds = time->second;
dt.hundredths = time->hsecond;
return( DosSetDateTime( &dt ) );
}
int main(VOID) {
DATETIME DateTime = {0}; /* Structure to hold date/time info. */
APIRET rc = NO_ERROR; /* Return code */
rc = DosGetDateTime(&DateTime); /* Retrieve the current date and time */
if (rc != NO_ERROR) {
printf ("DosGetDateTime error : return code = %u\n", rc);
return 1;
}
DateTime.hours = (UCHAR) ((BYTE) DateTime.hours + 1); /* Set clock ahead
for Daylight Savings Time */
rc = DosSetDateTime(&DateTime); /* Update the date and time */
if (rc!= NO_ERROR) {
printf ("DosSetDateTime error : return code = %u\n", rc);
return 1;
}
rc = DosGetDateTime(&DateTime); /* Retrieve the date and time */
if (rc!= NO_ERROR) {
printf ("DosGetDateTime error : return code = %u\n", rc);
return 1;
} else {
printf("Today is %d-%d-%d; the time is now %d:%2.2d\n", DateTime.month,
DateTime.day, DateTime.year, DateTime.hours, DateTime.minutes);
}
return NO_ERROR;
}
int qse_settime (const qse_ntime_t* t)
{
#if defined(_WIN32)
FILETIME ft;
SYSTEMTIME st;
/**((qse_int64_t*)&ft) = ((t + EPOCH_DIFF_MSECS) * (10 * 1000));*/
*((qse_int64_t*)&ft) =
(QSE_SEC_TO_NSEC(t->sec + EPOCH_DIFF_SECS) / 100) + (t->nsec / 100);
if (FileTimeToSystemTime (&ft, &st) == FALSE) return -1;
if (SetSystemTime(&st) == FALSE) return -1;
return 0;
#elif defined(__OS2__)
APIRET rc;
DATETIME dt;
qse_btime_t bt;
if (qse_localtime (t, &bt) <= -1) return -1;
QSE_MEMSET (&dt, 0, QSE_SIZEOF(dt));
dt.year = bt.year + QSE_BTIME_YEAR_BASE;
dt.month = bt.mon + 1;
dt.day = bt.mday;
dt.hours = bt.hour;
dt.minutes = bt.min;
dt.seconds = bt.sec;
dt.hundredths = QSE_NSEC_TO_MSEC(t->nsec) / 10;
rc = DosSetDateTime (&dt);
return (rc != NO_ERROR)? -1: 0;
#elif defined(__DOS__)
struct dostime_t dt;
struct dosdate_t dd;
qse_btime_t bt;
if (qse_localtime (t, &bt) <= -1) return -1;
dd.year = bt.year + QSE_BTIME_YEAR_BASE;
dd.month = bt.mon + 1;
dd.day = bt.mday;
dt.hour = bt.hour;
dt.minute = bt.min;
dt.second = bt.sec;
dt.hsecond = QSE_NSEC_TO_MSEC(t->nsec) / 10;
if (_dos_settime (&dt) != 0) return -1;
if (_dos_setdate (&dd) != 0) return -1;
return 0;
#elif defined(HAVE_SETTIMEOFDAY)
struct timeval tv;
int n;
tv.tv_sec = t->sec;
tv.tv_usec = QSE_NSEC_TO_USEC(t->nsec);
/*
#if defined(CLOCK_REALTIME) && defined(HAVE_CLOCK_SETTIME)
{
int r = clock_settime (CLOCK_REALTIME, ts);
if (r == 0 || errno == EPERM) return r;
}
#elif defined(HAVE_STIME)
return stime (&ts->tv_sec);
#else
*/
n = QSE_SETTIMEOFDAY (&tv, QSE_NULL);
if (n == -1) return -1;
return 0;
#else
time_t tv;
tv = t->sec;
return (QSE_STIME (&tv) == -1)? -1: 0;
#endif
}
