tools/tests/libMicro/close.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  * 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 }