* expire. So after a given amount of milliseconds return to the
* caller waiting for the other active expire cycle. */
iteration++;
- if ((iteration & 0xff) == 0 && /* & 0xff is the same as % 255 */
+ if ((iteration & 0xff) == 0 && /* Check once every 255 iterations */
(mstime()-start) > REDIS_EXPIRELOOKUPS_TIME_LIMIT) return;
} while (expired > REDIS_EXPIRELOOKUPS_PER_CRON/4);
}