glibc/rt/tst-timer5.c

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/* Timer test using the monotonic clock. */
#include <time.h>
#include <unistd.h>
#if defined CLOCK_MONOTONIC && defined _POSIX_MONOTONIC_CLOCK
# define TEST_CLOCK CLOCK_MONOTONIC
# define TEST_CLOCK_MISSING(clock) \
(setup_test () ? "CLOCK_MONOTONIC" : NULL)
# include <stdio.h>
static int
setup_test (void)
{
if (sysconf (_SC_MONOTONIC_CLOCK) <= 0)
return 1;
/* The user-level timers implementation doesn't support CLOCK_MONOTONIC,
even though sysconf claims it will. */
timer_t t;
if (timer_create (TEST_CLOCK, NULL, &t) != 0)
{
printf ("timer_create: %m\n");
return 1;
}
timer_delete (t);
return 0;
}
# include "tst-timer4.c"
#else
# define TEST_FUNCTION 0
# include "../test-skeleton.c"
#endif