/*
 * varsym..c
 *
 * varsym [threads]
 *
 * tests shared lock using varsym_get()
 */

#include "blib.h"
#include <sys/varsym.h>

int
main(int ac, char **av)
{
        long long count = 0;
        long long max;
        char c;
        int n;
        int i;
        int j;
        int status;
        char buf[256];

        printf("timing standard varsym_get() syscall, VARSYM_SYS\n");

        start_timing();
        while (stop_timing(0, NULL) == 0) {
                varsym_get(VARSYM_SYS_MASK, "fubar", buf, sizeof(buf));
                ++count;
        }
        max = count * 4;

        if (ac > 1)
                n = strtol(av[1], NULL, 0);
        else
                n = 1;

        start_timing();
        for (i = 0; i < n; ++i) {
                if (fork() == 0) {
                        for (count = 0; count < max; ++count) {
                                varsym_get(VARSYM_SYS_MASK, "fubar",
                                           buf, sizeof(buf));
                        }
                        _exit(0);
                }
        }
        while (wait3(&status, 0, NULL) >= 0 || errno == EINTR)
                ;
        stop_timing(max * n, "varsym1");

        return(0);
}