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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  * benchmark for close
     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 static int 			optb = 0;
     45 
     46 typedef struct {
     47 	int			*ts_fds;
     48 } tsd_t;
     49 
     50 int
     51 benchmark_init()
     52 {
     53 	lm_tsdsize = sizeof (tsd_t);
     54 
     55 	lm_defB = 256;
     56 
     57 	(void) sprintf(lm_optstr, "f:b");
     58 
     59 	(void) sprintf(lm_usage,
     60 	    "       [-f file-to-close (default %s)]\n"
     61 	    "       [-b] (try to close an unopened fd)\n"
     62 	    "notes: measures close()",
     63 	    DEFF);
     64 
     65 	return (0);
     66 }
     67 
     68 int
     69 benchmark_optswitch(int opt, char *optarg)
     70 {
     71 	switch (opt) {
     72 	case 'f':
     73 		optf = optarg;
     74 		break;
     75 	case 'b':
     76 		optb = 1;
     77 		break;
     78 	default:
     79 		return (-1);
     80 	}
     81 
     82 	return (0);
     83 }
     84 
     85 int
     86 benchmark_initrun()
     87 {
     88 	(void) setfdlimit(lm_optB * lm_optT + 10);
     89 
     90 	return (0);
     91 }
     92 
     93 int
     94 benchmark_initworker(void *tsd)
     95 {
     96 	tsd_t			*ts = (tsd_t *)tsd;
     97 
     98 	ts->ts_fds = (int *)malloc(lm_optB * sizeof (int));
     99 	if (ts->ts_fds == NULL) {
    100 		return (1);
    101 	}
    102 	return (0);
    103 }
    104 
    105 /*
    106  * don't need a finiworker; we're exiting anyway
    107  */
    108 
    109 int
    110 benchmark_initbatch(void *tsd)
    111 {
    112 	tsd_t			*ts = (tsd_t *)tsd;
    113 	int			i;
    114 	int			errors = 0;
    115 
    116 	for (i = 0; i < lm_optB; i++) {
    117 		ts->ts_fds[i] = ((optb == 0) ?
    118 		    open(optf, O_RDONLY) : i + 1024);
    119 		if (ts->ts_fds[i] == -1) {
    120 			errors++;
    121 		}
    122 	}
    123 
    124 	return (errors);
    125 }
    126 
    127 int
    128 benchmark(void *tsd, result_t *res)
    129 {
    130 	tsd_t			*ts = (tsd_t *)tsd;
    131 	int			i;
    132 
    133 	for (i = 0; i < lm_optB; i++) {
    134 		if (close(ts->ts_fds[i]) == -1 && !optb) {
    135 			res->re_errors++;
    136 		}
    137 	}
    138 	res->re_count = i;
    139 
    140 	return (0);
    141 }
    142