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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  * time dup
     33  */
     34 
     35 #include <unistd.h>
     36 #include <stdlib.h>
     37 #include <stdio.h>
     38 #include <fcntl.h>
     39 
     40 #include "libmicro.h"
     41 
     42 #define	DEFF			"/dev/null"
     43 static char			*optf = DEFF;
     44 
     45 static int			fd;
     46 
     47 typedef struct {
     48 	int			ts_once;
     49 	int			*ts_fds;
     50 } tsd_t;
     51 
     52 int
     53 benchmark_init()
     54 {
     55 	lm_tsdsize = sizeof (tsd_t);
     56 
     57 	lm_defB = 256;
     58 
     59 	(void) sprintf(lm_optstr, "f:");
     60 
     61 	(void) sprintf(lm_usage,
     62 	    "       [-f file-to-dup (default %s)]\n"
     63 	    "notes: measures dup()\n",
     64 	    DEFF);
     65 
     66 	return (0);
     67 }
     68 
     69 int
     70 benchmark_optswitch(int opt, char *optarg)
     71 {
     72 	switch (opt) {
     73 	case 'f':
     74 		optf = optarg;
     75 		break;
     76 	default:
     77 		return (-1);
     78 	}
     79 	return (0);
     80 }
     81 
     82 int
     83 benchmark_initrun()
     84 {
     85 	(void) setfdlimit(lm_optB * lm_optT + 10);
     86 	fd = (open(optf, O_RDONLY));
     87 
     88 	return (0);
     89 }
     90 
     91 int
     92 benchmark_initbatch(void *tsd)
     93 {
     94 	tsd_t			*ts = (tsd_t *)tsd;
     95 	int			i;
     96 	int			errors = 0;
     97 
     98 	if (ts->ts_once++ == 0) {
     99 		ts->ts_fds = (int *)malloc(lm_optB * sizeof (int));
    100 		if (ts->ts_fds == NULL) {
    101 			errors ++;
    102 		}
    103 		for (i = 0; i < lm_optB; i++) {
    104 			ts->ts_fds[i] = -1;
    105 		}
    106 	}
    107 
    108 	return (errors);
    109 }
    110 
    111 int
    112 benchmark(void *tsd, result_t *res)
    113 {
    114 	tsd_t			*ts = (tsd_t *)tsd;
    115 	int			i;
    116 
    117 	for (i = 0; i < lm_optB; i++) {
    118 		ts->ts_fds[i] = dup(fd);
    119 		if (ts->ts_fds[i] == -1) {
    120 			res->re_errors++;
    121 		}
    122 	}
    123 	res->re_count = i;
    124 
    125 	return (0);
    126 }
    127 
    128 int
    129 benchmark_finibatch(void *tsd)
    130 {
    131 	tsd_t			*ts = (tsd_t *)tsd;
    132 	int			i;
    133 
    134 	for (i = 0; i < lm_optB; i++) {
    135 		(void) close(ts->ts_fds[i]);
    136 	}
    137 
    138 	return (0);
    139 }
    140