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Commit	Line	Data
	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	}