void printdevice(mapper_db_device dev)
{
printf(" %s", dev->name);
int i=0;
const char *key;
char type;
const void *val;
int length;
while(!mapper_db_device_property_index(dev, i++, &key, &type,
&val, &length))
{
die_unless(val!=0, "returned zero value\n");
// already printed this
if (strcmp(key, "name")==0)
continue;
if (strcmp(key, "synced")==0) {
// check current time
mapper_timetag_t now;
mapper_monitor_now(mon, &now);
mapper_timetag_t *tt = (mapper_timetag_t *)val;
if (tt->sec == 0)
printf(", seconds_since_sync=unknown");
else
printf(", seconds_since_sync=%f",
mapper_timetag_difference(now, *tt));
}
else if (length) {
printf(", %s=", key);
mapper_prop_pp(type, length, val);
}
}
printf("\n");
}
void loop()
{
int i = 0;
printf("Loading devices...\n");
while (i >= 0 && !done) {
for (i=0; i<5; i++)
mdev_poll(devices[i], 0);
lo_timetag_now(&system_time);
if (system_time.sec != last_update) {
last_update = system_time.sec;
if (ready) {
for (i=0; i<5; i++) {
mdev_timetag_now(devices[i], &device_times[i]);
}
// calculate standard deviation
double mean = 0;
for (i=0; i<5; i++) {
mean += mapper_timetag_get_double(device_times[i]);
}
mean /= 5;
double difference_aggregate = 0;
for (i=0; i<5; i++) {
difference_aggregate += powf(mapper_timetag_get_double(device_times[i]) - mean, 2);
}
// print current system time and device diffs
printf("%f", (double)system_time.sec +
(double)system_time.frac * 0.00000000023283064365);
for (i=0; i<5; i++) {
printf(" | %f", mapper_timetag_difference(system_time, device_times[i]));
}
printf(" | %f", sqrtf(difference_aggregate / 5));
printf("\n");
}
else {
int count = 0;
for (i=0; i<5; i++) {
count += mdev_ready(devices[i]);
}
if (count >= 5) {
printf("\nSYSTEM TIME ***** | OFFSETS *****\n");
for (i=0; i<5; i++) {
// Give each device clock a random starting offset
devices[i]->admin->clock.offset = (rand() % 100) - 50;
}
ready = 1;
}
}
}
usleep(10 * 1000);
}
}
