/* Add a sample to the operations per second array of samples. */
void trackInstantaneousMetric(vr_stats *stats, int metric, long long current_reading) {
long long t = vr_msec_now() - stats->inst_metric[metric].last_sample_time;
long long ops = current_reading -
stats->inst_metric[metric].last_sample_count;
long long ops_sec;
ops_sec = t > 0 ? (ops*1000/t) : 0;
update_stats_set(stats,inst_metric[metric].samples[stats->inst_metric[metric].idx],ops_sec);
stats->inst_metric[metric].idx++;
stats->inst_metric[metric].idx %= STATS_METRIC_SAMPLES;
stats->inst_metric[metric].last_sample_time = vr_msec_now();
stats->inst_metric[metric].last_sample_count = current_reading;
}
/* Get a timeout value from an object and store it into 'timeout'.
* The final timeout is always stored as milliseconds as a time where the
* timeout will expire, however the parsing is performed according to
* the 'unit' that can be seconds or milliseconds.
*
* Note that if the timeout is zero (usually from the point of view of
* commands API this means no timeout) the value stored into 'timeout'
* is zero. */
int getTimeoutFromObjectOrReply(client *c, robj *object, long long *timeout, int unit) {
long long tval;
if (getLongLongFromObjectOrReply(c,object,&tval,
"timeout is not an integer or out of range") != VR_OK)
return VR_ERROR;
if (tval < 0) {
addReplyError(c,"timeout is negative");
return VR_ERROR;
}
if (tval > 0) {
if (unit == UNIT_SECONDS) tval *= 1000;
tval += vr_msec_now();
}
*timeout = tval;
return VR_OK;
}
unsigned int
get_lru_clock(void) {
return (vr_msec_now()/LRU_CLOCK_RESOLUTION) & LRU_CLOCK_MAX;
}