19 void os_sleep(os_time_t sec, os_time_t usec);
23 	os_time_t usec;  member
28 	os_time_t usec;  member
51 	       (a->sec == b->sec && a->usec < b->usec);  in os_time_before()
59 	res->usec = a->usec - b->usec;  in os_time_sub()
60 	if (res->usec < 0) {  in os_time_sub()
62 		res->usec += 1000000;  in os_time_sub()
73 	       (a->sec == b->sec && a->usec < b->usec);  in os_reltime_before()
81 	res->usec = a->usec - b->usec;  in os_reltime_sub()
82 	if (res->usec < 0) {  in os_reltime_sub()
84 		res->usec += 1000000;  in os_reltime_sub()
107 	       (age.sec == timeout_secs && age.usec > 0);  in os_reltime_expired()
113 	return t->sec != 0 || t->usec != 0;  in os_reltime_initialized()