1*94d3b452SApple OSS Distributions #include <stdlib.h> 2*94d3b452SApple OSS Distributions #include <time.h> 3*94d3b452SApple OSS Distributions #include <sys/time.h> 4*94d3b452SApple OSS Distributions #include <mach/mach_time.h> 5*94d3b452SApple OSS Distributions 6*94d3b452SApple OSS Distributions #include <darwintest.h> 7*94d3b452SApple OSS Distributions #include <darwintest_utils.h> 8*94d3b452SApple OSS Distributions 9*94d3b452SApple OSS Distributions T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true)); 10*94d3b452SApple OSS Distributions 11*94d3b452SApple OSS Distributions #define T_LOG_VERBOSE(...) 12*94d3b452SApple OSS Distributions 13*94d3b452SApple OSS Distributions #define timespec2nanosec(ts) ((uint64_t)((ts)->tv_sec) * NSEC_PER_SEC + (uint64_t)((ts)->tv_nsec)) 14*94d3b452SApple OSS Distributions 15*94d3b452SApple OSS Distributions T_DECL(mach_get_times, "mach_get_times()", 16*94d3b452SApple OSS Distributions T_META_CHECK_LEAKS(false), T_META_ALL_VALID_ARCHS(true)) 17*94d3b452SApple OSS Distributions { 18*94d3b452SApple OSS Distributions const int ITERATIONS = 500000 * dt_ncpu(); 19*94d3b452SApple OSS Distributions struct timespec gtod_ts; 20*94d3b452SApple OSS Distributions 21*94d3b452SApple OSS Distributions uint64_t last_absolute, last_continuous, last_gtod; 22*94d3b452SApple OSS Distributions T_QUIET; T_ASSERT_EQ(mach_get_times(&last_absolute, &last_continuous, >od_ts), KERN_SUCCESS, NULL); 23*94d3b452SApple OSS Distributions last_gtod = timespec2nanosec(>od_ts); 24*94d3b452SApple OSS Distributions 25*94d3b452SApple OSS Distributions for (int i = 0; i < ITERATIONS; i++) { 26*94d3b452SApple OSS Distributions uint64_t absolute, continuous, gtod; 27*94d3b452SApple OSS Distributions T_QUIET; T_ASSERT_EQ(mach_get_times(&absolute, &continuous, >od_ts), KERN_SUCCESS, NULL); 28*94d3b452SApple OSS Distributions gtod = timespec2nanosec(>od_ts); 29*94d3b452SApple OSS Distributions 30*94d3b452SApple OSS Distributions T_LOG_VERBOSE("[%d] abs: %llu.%09llu(+%llu)\tcont: %llu.%09llu(+%llu)\tgtod:%llu.%09llu(+%llu)", i, 31*94d3b452SApple OSS Distributions absolute / NSEC_PER_SEC, absolute % NSEC_PER_SEC, absolute - last_absolute, 32*94d3b452SApple OSS Distributions continuous / NSEC_PER_SEC, continuous % NSEC_PER_SEC, continuous - last_continuous, 33*94d3b452SApple OSS Distributions gtod / NSEC_PER_SEC, gtod % NSEC_PER_SEC, gtod - last_gtod); 34*94d3b452SApple OSS Distributions 35*94d3b452SApple OSS Distributions T_QUIET; T_EXPECT_EQ(absolute - last_absolute, continuous - last_continuous, NULL); 36*94d3b452SApple OSS Distributions 37*94d3b452SApple OSS Distributions int64_t gtod_diff = (int64_t)gtod - (int64_t)last_gtod; 38*94d3b452SApple OSS Distributions T_QUIET; T_ASSERT_LE((uint64_t)llabs(gtod_diff), NSEC_PER_SEC, NULL); 39*94d3b452SApple OSS Distributions 40*94d3b452SApple OSS Distributions last_absolute = absolute; 41*94d3b452SApple OSS Distributions last_continuous = continuous; 42*94d3b452SApple OSS Distributions last_gtod = gtod; 43*94d3b452SApple OSS Distributions 44*94d3b452SApple OSS Distributions gtod_ts.tv_sec = 0; gtod_ts.tv_nsec = 0; 45*94d3b452SApple OSS Distributions } 46*94d3b452SApple OSS Distributions } 47