ObjFW  Diff

/**
 * @brief Suspends execution of the current thread for the specified time
 *	  interval.
 *
 * @param timeInterval The number of seconds to sleep
 */
+ (void)sleepForTimeInterval: (of_time_interval_t)timeInterval;
+ (void)sleepForTimeInterval: (OFTimeInterval)timeInterval;

/**
 * @brief Suspends execution of the current thread until the specified date.
 *
 * @param date The date to wait for
 */
+ (void)sleepUntilDate: (OFDate *)date;