counter.c
author Markus Bröker <mbroeker@largo.dyndns.tv>
Sat, 13 Dec 2008 17:58:17 +0100
changeset 24 9cdad6c45b47
parent 9 c3fecc82ade6
child 27 81a574d60c15
permissions -rw-r--r--
function pointer demo added committer: Markus Bröker <mbroeker@largo.homelinux.org>

/**
 * test/demos/counter.c
 * Copyright (C) 2008 Markus Broeker
 */

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main (int argc, char **argv)
{
    time_t t;
    struct tm *time_str;
    int start, end;

    if (argc != 2) {
        printf ("Usage: %s \"<command>\"\n", argv[0]);
        return EXIT_FAILURE;
    }

    time (&t);
    time_str = gmtime (&t);

    start = time_str->tm_hour * 60 * 60 + time_str->tm_min * 60 + time_str->tm_sec;

    system (argv[1]);

    time (&t);
    time_str = gmtime (&t);

    end = time_str->tm_hour * 60 * 60 + time_str->tm_min * 60 + time_str->tm_sec;

    printf ("Command Execution Time: %8ds\n", end - start);

    return EXIT_SUCCESS;
}