/*
 * This file is in public domain.
 * Written by Konstantin Belousov <kib@freebsd.org>
 */

#include <sys/mman.h>
#include <err.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <unistd.h>

static void
test_pagesizes(void)
{
        size_t *ps;
        int i, nelem;

        nelem = getpagesizes(NULL, 0);
        if (nelem == -1)
                err(1, "getpagesizes(NULL, 0)");
        ps = malloc(nelem * sizeof(size_t));
        if (ps == NULL)
                err(1, "malloc");
        nelem = getpagesizes(ps, nelem);
        if (nelem == -1)
                err(1, "getpagesizes");
        printf("Supported page sizes:");
        for (i = 0; i < nelem; i++)
                printf(" %jd", (intmax_t)ps[i]);
        printf("\n");
}

static void
test_pagesize(void)
{

        printf("Pagesize: %d\n", getpagesize());
}

static void
test_osreldate(void)
{

        printf("OSRELDATE: %d\n", getosreldate());
}

static void
test_ncpus(void)
{

        printf("NCPUs: %ld\n", sysconf(_SC_NPROCESSORS_CONF));
}

int
main(int argc __unused, char *argv[] __unused)
{

        test_pagesizes();
        test_pagesize();
        test_osreldate();
        test_ncpus();
        return (0);
}