tools/tests/libMicro/getenv.c

   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 }