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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms
      5  * of the Common Development and Distribution License
      6  * (the "License").  You may not use this file except
      7  * in compliance with the License.
      8  *
      9  * You can obtain a copy of the license at
     10  * src/OPENSOLARIS.LICENSE
     11  * or http://www.opensolaris.org/os/licensing.
     12  * See the License for the specific language governing
     13  * permissions and limitations under the License.
     14  *
     15  * When distributing Covered Code, include this CDDL
     16  * HEADER in each file and include the License file at
     17  * usr/src/OPENSOLARIS.LICENSE.  If applicable,
     18  * add the following below this CDDL HEADER, with the
     19  * fields enclosed by brackets "[]" replaced with your
     20  * own identifying information: Portions Copyright [yyyy]
     21  * [name of copyright owner]
     22  *
     23  * CDDL HEADER END
     24  */
     25 
     26 /*
     27  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
     28  * Use is subject to license terms.
     29  */
     30 
     31 /*
     32  * lseek
     33  */
     34 
     35 #ifdef linux
     36 #define	_XOPEN_SOURCE 500
     37 #endif
     38 
     39 #include <unistd.h>
     40 #include <stdlib.h>
     41 #include <stdio.h>
     42 #include <fcntl.h>
     43 
     44 #include "libmicro.h"
     45 
     46 #define	DEFF			"/dev/zero"
     47 #define	DEFS			1024
     48 
     49 static char			*optf = DEFF;
     50 static long long		opts = DEFS;
     51 
     52 typedef struct {
     53 	int			ts_once;
     54 	int 			ts_fd;
     55 } tsd_t;
     56 
     57 int
     58 benchmark_init()
     59 {
     60 	lm_tsdsize = sizeof (tsd_t);
     61 
     62 	(void) sprintf(lm_optstr, "f:s:");
     63 
     64 	(void) sprintf(lm_usage,
     65 	    "       [-f file-to-read (default %s)]\n"
     66 	    "       [-s buffer-size (default %d)]\n"
     67 	    "notes: measures lseek()\n",
     68 	    DEFF, DEFS);
     69 
     70 	(void) sprintf(lm_header, "%8s", "size");
     71 
     72 	return (0);
     73 }
     74 
     75 int
     76 benchmark_optswitch(int opt, char *optarg)
     77 {
     78 	switch (opt) {
     79 	case 'f':
     80 		optf = optarg;
     81 		break;
     82 	case 's':
     83 		opts = sizetoll(optarg);
     84 		break;
     85 	default:
     86 		return (-1);
     87 	}
     88 	return (0);
     89 }
     90 
     91 int
     92 benchmark_initbatch(void *tsd)
     93 {
     94 	tsd_t			*ts = (tsd_t *)tsd;
     95 
     96 	if (ts->ts_once++ == 0) {
     97 		ts->ts_fd = open(optf, O_RDONLY);
     98 	}
     99 
    100 	return (0);
    101 }
    102 
    103 int
    104 benchmark(void *tsd, result_t *res)
    105 {
    106 	tsd_t			*ts = (tsd_t *)tsd;
    107 	int			i;
    108 
    109 	for (i = 0; i < lm_optB; i += 2) {
    110 		if (lseek(ts->ts_fd, 0L, SEEK_SET) != 0) {
    111 			res->re_errors++;
    112 		}
    113 		if (lseek(ts->ts_fd, opts, SEEK_SET) != opts) {
    114 			res->re_errors++;
    115 		}
    116 	}
    117 	res->re_count = i;
    118 
    119 	return (0);
    120 }
    121 
    122 char *
    123 benchmark_result()
    124 {
    125 	static char		result[256];
    126 
    127 	(void) sprintf(result, "%8lld", opts);
    128 
    129 	return (result);
    130 }
    131