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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  * test getenv
     33  */
     34 
     35 #include <unistd.h>
     36 #include <stdio.h>
     37 #include <stdlib.h>
     38 #include <pthread.h>
     39 #include <string.h>
     40 
     41 #include "libmicro.h"
     42 
     43 #define	DEFS			100
     44 
     45 static int			opts = DEFS;
     46 
     47 int
     48 benchmark_init()
     49 {
     50 	(void) sprintf(lm_optstr, "s:");
     51 
     52 	lm_tsdsize = 0;
     53 
     54 	(void) sprintf(lm_usage,
     55 	    "       [-s search-size (default = %d)]\n"
     56 	    "notes: measures time to search env for missing string\n",
     57 	    DEFS);
     58 
     59 	lm_nsecs_per_op = 200;
     60 
     61 	return (0);
     62 }
     63 
     64 int
     65 benchmark_optswitch(int opt, char *optarg)
     66 {
     67 	switch (opt) {
     68 	case 's':
     69 		opts = atoi(optarg);
     70 		break;
     71 	default:
     72 		return (-1);
     73 	}
     74 	return (0);
     75 }
     76 
     77 int
     78 benchmark_initrun()
     79 {
     80 	extern char **		environ;
     81 	int			i, j;
     82 
     83 	/* count environment strings */
     84 
     85 	for (i = 0; environ[i++]; )
     86 		;
     87 
     88 	/*
     89 	 * pad to desired count
     90 	 */
     91 
     92 	if (opts < i)
     93 		opts = i;
     94 
     95 	for (j = i; j < opts; j++) {
     96 		char buf[80];
     97 		(void) sprintf(buf, "VAR_%d=%d", j, j);
     98 		(void) putenv(strdup(buf));
     99 	}
    100 
    101 	return (0);
    102 }
    103 
    104 /*ARGSUSED*/
    105 int
    106 benchmark(void *tsd, result_t *res)
    107 {
    108 	int			i;
    109 	char 			*search = "RUMPLSTILTSKIN";
    110 
    111 	for (i = 0; i < lm_optB; i += 10) {
    112 		(void) getenv(search);
    113 		(void) getenv(search);
    114 		(void) getenv(search);
    115 		(void) getenv(search);
    116 		(void) getenv(search);
    117 		(void) getenv(search);
    118 		(void) getenv(search);
    119 		(void) getenv(search);
    120 		(void) getenv(search);
    121 		(void) getenv(search);
    122 	}
    123 	res->re_count = i;
    124 
    125 	return (0);
    126 }
    127