tests/gettimeofday.c

   1 #include <unistd.h>
   2 #include <sys/time.h>
   3 #include <mach/mach_time.h>
   4
   5 #include <darwintest.h>
   6
   7 T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
   8
   9 extern int __gettimeofday(struct timeval *, struct timezone *);
  10
  11 T_DECL(gettimeofday, "gettimeofday()",
  12     T_META_CHECK_LEAKS(false), T_META_ALL_VALID_ARCHS(true), T_META_LTEPHASE(LTE_POSTINIT))
  13 {
  14         struct timeval tv_a, tv_b, tv_c;
  15
  16         T_ASSERT_POSIX_ZERO(gettimeofday(&tv_a, NULL), NULL);
  17         T_ASSERT_GT(tv_a.tv_sec, 0L, NULL);
  18
  19         sleep(1);
  20
  21         T_ASSERT_POSIX_ZERO(__gettimeofday(&tv_b, NULL), NULL);
  22         T_ASSERT_GE(tv_b.tv_sec, tv_a.tv_sec, NULL);
  23
  24         sleep(1);
  25
  26         T_ASSERT_POSIX_ZERO(gettimeofday(&tv_c, NULL), NULL);
  27         T_ASSERT_GE(tv_c.tv_sec, tv_b.tv_sec, NULL);
  28 }
  29
  30 #if 0 // This symbol isn't exported so we can't test with stock libsyscall
  31 extern int __gettimeofday_with_mach(struct timeval *, struct timezone *, uint64_t *mach_time);
  32
  33 T_DECL(gettimeofday_with_mach, "gettimeofday_with_mach()",
  34     T_META_CHECK_LEAKS(false), T_META_ALL_VALID_ARCHS(true))
  35 {
  36         struct timeval gtod_ts;
  37
  38         uint64_t mach_time_before, mach_time, mach_time_after;
  39
  40         mach_time_before = mach_absolute_time();
  41
  42         T_ASSERT_POSIX_ZERO(__gettimeofday_with_mach(&gtod_ts, NULL, &mach_time), NULL);
  43         T_ASSERT_GT(gtod_ts.tv_sec, 0L, NULL);
  44
  45         mach_time_after = mach_absolute_time();
  46
  47         T_LOG("%llx > %llx > %llx", mach_time_before, mach_time, mach_time_after);
  48
  49         T_ASSERT_LT(mach_time_before, mach_time, NULL);
  50         T_ASSERT_GT(mach_time_after, mach_time, NULL);
  51 }
  52 #endif // 0