3 /*-
34 #include <atf-c.h>
46 #define BILLION		1000000000LL	/* nano-seconds per second */
47 #define MILLION		1000000LL	/* nano-seconds per milli-second */
51 #define KEVNT_TIMEOUT	10300		/* measured in milli-seconds */
52 #define FUZZ		(40 * MILLION)	/* scheduling fuzz accepted - 40 ms */
58  * starts at 1sec (since it cannot handle sub-second intervals).
66  * The ALARM is only set if the current pass's delay is longer, and
69  * The 'kevent' test needs the ALARM to be set on a different pass
70  * from when the KEVNT_TIMEOUT fires.  So set ALARM to fire on the
72  * set KEVNT_TIMEOUT just barely long enough to put it into the
73  * last test pass, and set MAXSLEEP a couple seconds longer than
102 	if (nanosleep(delay, remain) == -1)  in do_nanosleep()
113 	struct timeval tv;  in do_select()  local
115 	TIMESPEC_TO_TIMEVAL(&tv, delay);  in do_select()
116 	if (select(0, NULL, NULL, NULL, &tv) == -1)  in do_select()
128 	struct timeval tv;  in do_poll()  local
130 	TIMESPEC_TO_TIMEVAL(&tv, delay);  in do_poll()
131 	if (pollts(NULL, 0, delay, NULL) == -1)  in do_poll()
142 	struct timeval tv;  in do_sleep()  local
144 	TIMESPEC_TO_TIMEVAL(&tv, delay);  in do_sleep()
145 	remain->tv_sec = sleep(delay->tv_sec);  in do_sleep()
146 	remain->tv_nsec = 0;  in do_sleep()
159 	ATF_REQUIRE_MSG((kq = kqueue()) != -1, "kqueue: %s", strerror(errno));  in do_kevent()
169 	    tmo/1000 < delay->tv_sec && tmo/500 > delay->tv_sec)  in do_kevent()
170 		delay->tv_sec = MAXSLEEP;  in do_kevent()
179 	if (rtc == -1) {  in do_kevent()
185 	if (delay->tv_sec * BILLION + delay->tv_nsec > tmo * MILLION)  in do_kevent()
301 		delta1 = (int64_t)tsb.tv_sec - (int64_t)tsa.tv_sec;  in sleeptest()
303 		delta1 += (int64_t)tsb.tv_nsec - (int64_t)tsa.tv_nsec;  in sleeptest()
309 		delta3 += (int64_t)tslp.tv_nsec - delta1 - delta2;  in sleeptest()
314 		if (delta3 > FUZZ || delta3 < -FUZZ) {  in sleeptest()