xref/libmicro/chdir.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the "License").  You may not use this file except
 * in compliance with the License.
 *
 * You can obtain a copy of the license at
 * src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing
 * permissions and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL
 * HEADER in each file and include the License file at
 * usr/src/OPENSOLARIS.LICENSE.  If applicable,
 * add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your
 * own identifying information: Portions Copyright [yyyy]
 * [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * change directory benchmark
 */

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

#include "libmicro.h"

#define DEFAULTDIR      "/"
#define MAXPATHLEN      1024

static int          optg = 0;

static int          dircount;
static char **          dirlist;

int
benchmark_init()
{
    (void) sprintf(lm_optstr, "g");
    lm_tsdsize = 0;

    (void) sprintf(lm_usage,
        "       [-g] (do getcwd() also)\n"
        "       directory ... (default = %s)\n"
        "notes: measures chdir() and (optionally) getcwd()",
        DEFAULTDIR);

    (void) sprintf(lm_header, "%5s %5s", "dirs", "gets");

    return (0);
}

/*ARGSUSED*/
int
benchmark_optswitch(int opt, char *optarg)
{
    switch (opt) {
    case 'g':
        optg = 1;
        break;
    default:
        return (-1);
    }
    return (0);
}

int
benchmark_initrun()
{
    extern int      optind;
    int         i;

    dircount = lm_argc - optind;
    if (dircount <= 0) {
        dirlist = (char **)malloc(sizeof (char *));
        dirlist[0] = DEFAULTDIR;
        dircount = 1;
    } else {
        dirlist = (char **)malloc(dircount * sizeof (char *));
        for (i = 0; i < dircount; i++) {
            dirlist[i] = lm_argv[optind++];
        }
    }

    return (0);
}

/*ARGSUSED*/
int
benchmark(void *tsd, result_t *res)
{
    int         i, j;
    char            buf[MAXPATHLEN];

    j = 0;
    for (i = 0; i < lm_optB; i++) {
        if (chdir(dirlist[j]) == -1)
            res->re_errors++;
        j++;
        j %= dircount;

        if (optg && (getcwd(buf, MAXPATHLEN) == NULL)) {
            res->re_errors++;
        }
    }
    res->re_count = i;

    return (0);
}

char *
benchmark_result()
{
    static char     result[256];

    (void) sprintf(result, "%5d %5s", dircount, optg ? "y" : "n");

    return (result);
}