static void show_hostrt_diagnostics(void)
{
if (!xnvdso_test_feature(cobalt_vdso, XNVDSO_FEAT_HOST_REALTIME)) {
printf("XNVDSO_FEAT_HOST_REALTIME not available\n");
return;
}
if (cobalt_vdso->hostrt_data.live)
printf("hostrt data area is live\n");
else {
printf("hostrt data area is not live\n");
return;
}
printf("sequence counter : %u\n",
cobalt_vdso->hostrt_data.lock.sequence);
printf("wall_time_sec : %lld\n",
(unsigned long long)cobalt_vdso->hostrt_data.wall_sec);
printf("wall_time_nsec : %u\n", cobalt_vdso->hostrt_data.wall_nsec);
printf("wall_to_monotonic_sec : %lld\n",
(unsigned long long)cobalt_vdso->hostrt_data.wtom_sec);
printf("wall_to_monotonic_nsec : %u\n", cobalt_vdso->hostrt_data.wtom_nsec);
printf("cycle_last : %Lu\n", (long long)cobalt_vdso->hostrt_data.cycle_last);
printf("mask : 0x%Lx\n", (long long)cobalt_vdso->hostrt_data.mask);
printf("mult : %u\n", cobalt_vdso->hostrt_data.mult);
printf("shift : %u\n\n", cobalt_vdso->hostrt_data.shift);
}
static void show_hostrt_diagnostics(void)
{
if (!xnvdso_test_feature(vdso, XNVDSO_FEAT_HOST_REALTIME)) {
printf("XNVDSO_FEAT_HOST_REALTIME not available\n");
return;
}
if (vdso->hostrt_data.live)
printf("hostrt data area is live\n");
else {
printf("hostrt data area is not live\n");
return;
}
printf("Sequence counter : %u\n",
vdso->hostrt_data.lock.sequence);
printf("wall_time_sec : %ld\n", vdso->hostrt_data.wall_time_sec);
printf("wall_time_nsec : %u\n", vdso->hostrt_data.wall_time_nsec);
printf("wall_to_monotonic\n");
printf(" tv_sec : %jd\n",
(intmax_t)vdso->hostrt_data.wall_to_monotonic.tv_sec);
printf(" tv_nsec : %ld\n",
vdso->hostrt_data.wall_to_monotonic.tv_nsec);
printf("cycle_last : %Lu\n", vdso->hostrt_data.cycle_last);
printf("mask : 0x%Lx\n", vdso->hostrt_data.mask);
printf("mult : %u\n", vdso->hostrt_data.mult);
printf("shift : %u\n\n", vdso->hostrt_data.shift);
}
static void show_realtime_offset(void)
{
if (!xnvdso_test_feature(cobalt_vdso, XNVDSO_FEAT_HOST_REALTIME)) {
printf("XNVDSO_FEAT_WALLCLOCK_OFFSET not available\n");
return;
}
printf("Wallclock offset : %llu\n", (long long)cobalt_vdso->wallclock_offset);
}
static void cleanup_current_mode(void *key)
{
unsigned long *mode = key;
*mode = -1;
if (xnvdso_test_feature(XNVDSO_FEAT_DROP_U_MODE)) {
XENOMAI_SYSCALL0(__xn_sys_drop_u_mode);
free_current_mode(mode);
}
}
int main(int argc, char **argv)
{
int res;
struct timespec ts1, ts2;
mlockall(MCL_CURRENT|MCL_FUTURE);
if (!xeno_sem_heap[1]) {
fprintf(stderr, "Could not determine position of the "
"global semaphore heap\n");
return 1;
}
if (!xnvdso_test_feature(XNVDSO_FEAT_HOST_REALTIME)) {
printf("XNVDSO_FEAT_HOST_REALTIME not available\n");
return 1;
}
if (nkvdso->hostrt_data.live)
printf("hostrt data area is live\n");
else {
printf("hostrt data area is not live\n");
return 2;
}
printf("Sequence counter : %u\n",
nkvdso->hostrt_data.seqcount.sequence);
printf("wall_time_sec : %ld\n", nkvdso->hostrt_data.wall_time_sec);
printf("wall_time_nsec : %u\n", nkvdso->hostrt_data.wall_time_nsec);
printf("wall_to_monotonic\n");
printf(" tv_sec : %jd\n",
(intmax_t)nkvdso->hostrt_data.wall_to_monotonic.tv_sec);
printf(" tv_nsec : %ld\n",
nkvdso->hostrt_data.wall_to_monotonic.tv_nsec);
printf("cycle_last : %lu\n", nkvdso->hostrt_data.cycle_last);
printf("mask : 0x%lx\n", nkvdso->hostrt_data.mask);
printf("mult : %u\n", nkvdso->hostrt_data.mult);
printf("shift : %u\n\n", nkvdso->hostrt_data.shift);
res = clock_gettime(CLOCK_REALTIME, &ts1);
if (res)
printf("clock_gettime(CLOCK_REALTIME) failed!\n");
signal(SIGXCPU, count_modeswitches);
rt_task_set_mode(0, T_WARNSW, NULL);
modeswitches = 0;
res = clock_gettime(CLOCK_HOST_REALTIME, &ts2);
if (res)
printf("clock_gettime(CLOCK_HOST_REALTIME) failed!\n");
if (modeswitches == 1) {
printf("CLOCK_HOST_REALTIME caused a mode switch.\n");
return 3;
}
rt_task_set_mode(T_CONFORMING, 0, NULL);
printf("CLOCK_REALTIME : tv_sec = %jd, tv_nsec = %llu\n",
ts1.tv_sec, ts1.tv_nsec);
printf("CLOCK_HOST_REALTIME: tv_sec = %jd, tv_nsec = %llu\n",
ts2.tv_sec, ts2.tv_nsec);
return 0;
}
