xref: /xnu-12377.61.12/tests/mach_boottime_usec.c (revision 4d495c6e23c53686cf65f45067f79024cf5dcee8)
1*4d495c6eSApple OSS Distributions #include <stdlib.h>
2*4d495c6eSApple OSS Distributions #include <time.h>
3*4d495c6eSApple OSS Distributions #include <sys/time.h>
4*4d495c6eSApple OSS Distributions #include <sys/types.h>
5*4d495c6eSApple OSS Distributions #include <sys/sysctl.h>
6*4d495c6eSApple OSS Distributions #include <mach/mach_time.h>
7*4d495c6eSApple OSS Distributions 
8*4d495c6eSApple OSS Distributions #include <darwintest.h>
9*4d495c6eSApple OSS Distributions 
10*4d495c6eSApple OSS Distributions T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
11*4d495c6eSApple OSS Distributions 
12*4d495c6eSApple OSS Distributions T_DECL(mach_boottime_usec, "mach_boottime_usec()",
13*4d495c6eSApple OSS Distributions     T_META_ALL_VALID_ARCHS(true), T_META_LTEPHASE(LTE_POSTINIT))
14*4d495c6eSApple OSS Distributions {
15*4d495c6eSApple OSS Distributions 	uint64_t bt_usec = mach_boottime_usec();
16*4d495c6eSApple OSS Distributions 
17*4d495c6eSApple OSS Distributions 	struct timeval bt_tv;
18*4d495c6eSApple OSS Distributions 	size_t len = sizeof(bt_tv);
19*4d495c6eSApple OSS Distributions 	T_ASSERT_POSIX_SUCCESS(sysctlbyname("kern.boottime", &bt_tv, &len, NULL, 0), NULL);
20*4d495c6eSApple OSS Distributions 
21*4d495c6eSApple OSS Distributions 	T_EXPECT_EQ((uint64_t)bt_tv.tv_sec * USEC_PER_SEC + (uint64_t)bt_tv.tv_usec, bt_usec, NULL);
22*4d495c6eSApple OSS Distributions }
23