/**
* Sends a TimeSync message using the local time from the device.
*/
void Send_TimeSync_Device(void)
{
BACNET_DATE_TIME local_time;
Device_getCurrentDateTime(&local_time);
Send_TimeSync(&local_time.date, &local_time.time);
}
int main(
int argc,
char *argv[])
{
BACNET_ADDRESS src = {
0
}; /* address where message came from */
uint16_t pdu_len = 0;
unsigned timeout = 100; /* milliseconds */
time_t elapsed_seconds = 0;
time_t last_seconds = 0;
time_t current_seconds = 0;
time_t timeout_seconds = 0;
time_t rawtime;
struct tm *my_time;
BACNET_DATE bdate;
BACNET_TIME btime;
/* FIXME: we could send directed time sync, and how do we send UTC? */
#if 0
if (argc < 2) {
printf("Usage: %s date time [device-instance]\r\n"
"Send BACnet TimeSynchronization request to all devices.\r\n"
"date format: year/month/day:dayofweek (e.g. 2006/4/1:6)\r\n"
"year: AD, such as 2006\r\n" "month: 1=January, 12=December\r\n"
"day: 1-31\r\n" "dayofweek: 1=Monday, 7=Sunday\r\n" "\r\n"
"time format: hour:minute:second.hundredths (e.g. 23:59:59.12)\r\n"
"hour: 0-23\r\n" "minute: 0-59\r\n" "second: 0-59\r\n"
"hundredths: 0-99\r\n" "\r\n"
"Optional device-instance sends a unicast time sync.\r\n",
filename_remove_path(argv[0]));
return 0;
}
#else
(void) argc;
(void) argv;
#endif
/* setup my info */
Device_Set_Object_Instance_Number(BACNET_MAX_INSTANCE);
Init_Service_Handlers();
dlenv_init();
atexit(datalink_cleanup);
/* configure the timeout values */
last_seconds = time(NULL);
timeout_seconds = apdu_timeout() / 1000;
/* send the request */
time(&rawtime);
my_time = localtime(&rawtime);
bdate.year = my_time->tm_year + 1900;
bdate.month = my_time->tm_mon + 1;
bdate.day = my_time->tm_mday;
bdate.wday = my_time->tm_wday ? my_time->tm_wday : 7;
btime.hour = my_time->tm_hour;
btime.min = my_time->tm_min;
btime.sec = my_time->tm_sec;
btime.hundredths = 0;
Send_TimeSync(&bdate, &btime);
/* loop forever - not necessary for time sync, but we can watch */
for (;;) {
/* increment timer - exit if timed out */
current_seconds = time(NULL);
/* returns 0 bytes on timeout */
pdu_len = datalink_receive(&src, &Rx_Buf[0], MAX_MPDU, timeout);
/* process */
if (pdu_len) {
npdu_handler(&src, &Rx_Buf[0], pdu_len);
}
if (Error_Detected)
break;
/* increment timer - exit if timed out */
elapsed_seconds += (current_seconds - last_seconds);
if (elapsed_seconds > timeout_seconds)
break;
/* keep track of time for next check */
last_seconds = current_seconds;
}
return 0;
}
