// We constantly update the track time to event about it to our clients.
static void *thread_update_track_time(void *userdata) {
const gint64 one_sec_unit = 1000000000LL;
char tbuf[32];
gint64 last_duration = -1, last_position = -1;
for (;;) {
usleep(500000); // 500ms
service_lock();
gint64 duration, position;
const int pos_result = output_get_position(&duration, &position);
if (pos_result == 0) {
if (duration != last_duration) {
print_upnp_time(tbuf, sizeof(tbuf), duration);
replace_var(TRANSPORT_VAR_CUR_TRACK_DUR, tbuf);
last_duration = duration;
}
if (position / one_sec_unit != last_position) {
print_upnp_time(tbuf, sizeof(tbuf), position);
replace_var(TRANSPORT_VAR_REL_TIME_POS, tbuf);
last_position = position / one_sec_unit;
}
}
service_unlock();
}
return NULL; // not reached.
}
static void shared_meta_time_change(uint32_t total, uint32_t current)
{
char tbuf[32];
service_lock();
print_upnp_time(tbuf, sizeof(tbuf), total);
replace_var(TRANSPORT_VAR_CUR_TRACK_DUR, tbuf);
print_upnp_time(tbuf, sizeof(tbuf), current);
replace_var(TRANSPORT_VAR_REL_TIME_POS, tbuf);
service_unlock();
}