osfmk/kern/clock.c

74 static struct clock_calend {
81 } clock_calend;
86  *	Unlocked calendar flipflop; this is used to track a clock_calend such
87  *	that we can safely access a snapshot of a valid  clock_calend structure
96 	struct clock_calend	calend;		/* copy of calendar */
243 	if (clock_calend.adjdelta < 0) {
255 		if (now > clock_calend.adjstart) {
256 			t32 = (uint32_t)(now - clock_calend.adjstart);
258 			if (t32 > clock_calend.adjoffset)
259 				now -= clock_calend.adjoffset;
261 				now = clock_calend.adjstart;
265 	now += clock_calend.offset;
269 	*secs += (clock_sec_t)clock_calend.epoch;
298 	if (clock_calend.adjdelta < 0) {
301 		if (now > clock_calend.adjstart) {
302 			t32 = (uint32_t)(now - clock_calend.adjstart);
304 			if (t32 > clock_calend.adjoffset)
305 				now -= clock_calend.adjoffset;
307 				now = clock_calend.adjstart;
311 	now += clock_calend.offset;
317 	*secs += (clock_sec_t)clock_calend.epoch;
347 	if (clock_calend.adjdelta >= 0) {
348 		clock_gettimeofday_set_commpage(now, clock_calend.epoch, clock_calend.offset, secs, microsecs);
353 		if (now > clock_calend.adjstart) {
354 			t32 = (uint32_t)(now - clock_calend.adjstart);
356 			if (t32 > clock_calend.adjoffset)
357 				now -= clock_calend.adjoffset;
359 				now = clock_calend.adjstart;
362 		now += clock_calend.offset;
366 		*secs += (clock_sec_t)clock_calend.epoch;
412 	clock_boottime += secs - clock_calend.epoch;
417 	clock_calend.epoch = secs;
419 	nanoseconds_to_absolutetime((uint64_t)microsecs * NSEC_PER_USEC, &clock_calend.offset);
424 	calend_adjtotal = clock_calend.adjdelta = 0;
483 		clock_calend.epoch = secs;
485 		nanoseconds_to_absolutetime((uint64_t)microsecs * NSEC_PER_USEC, &clock_calend.offset);
490 		calend_adjtotal = clock_calend.adjdelta = 0;
613 			clock_calend.adjoffset = (uint32_t)t64;
632 			clock_calend.adjstart = now;
638 			clock_calend.adjoffset = (uint32_t)t64;
649 		clock_calend.adjdelta = delta;
660 		calend_adjtotal = clock_calend.adjdelta = 0;
715 	delta = clock_calend.adjdelta;
718 		clock_calend.offset += clock_calend.adjoffset;
722 			clock_calend.adjdelta = delta = (int32_t)calend_adjtotal;
725 			clock_calend.adjoffset = (uint32_t)t64;
730 			clock_calend.offset -= clock_calend.adjoffset;
734 				clock_calend.adjdelta = delta = (int32_t)calend_adjtotal;
737 				clock_calend.adjoffset = (uint32_t)t64;
740 			if (clock_calend.adjdelta != 0)
741 				clock_calend.adjstart = now;
744 	if (clock_calend.adjdelta != 0)
983 		struct clock_calend tmp = clock_calend;