tools/tests/libMicro/semop.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 #include <unistd.h>
  32 #include <stdlib.h>
  33 #include <stdio.h>
  34 #include <sys/types.h>
  35 #include <sys/ipc.h>
  36 #include <sys/sem.h>
  37
  38 #include "libmicro.h"
  39
  40
  41 typedef struct {
  42         int     ts_semid;
  43 } tsd_t;
  44
  45 int
  46 benchmark_init()
  47 {
  48         lm_tsdsize = sizeof (tsd_t);
  49
  50         (void) sprintf(lm_usage, "notes: measures semop()\n");
  51
  52         return (0);
  53 }
  54
  55 int
  56 benchmark_initbatch(void *tsd)
  57 {
  58
  59         tsd_t                   *ts = (tsd_t *)tsd;
  60
  61         if ((ts->ts_semid = semget(IPC_PRIVATE, 2, 0600)) == -1) {
  62                 return (-1);
  63         }
  64
  65         return (0);
  66 }
  67
  68 int
  69 benchmark_finibatch(void *tsd)
  70 {
  71         tsd_t                   *ts = (tsd_t *)tsd;
  72
  73         (void) semctl(ts->ts_semid, 0, IPC_RMID);
  74
  75         return (0);
  76 }
  77
  78 int
  79 benchmark(void *tsd, result_t *res)
  80 {
  81         int                     i;
  82         tsd_t                   *ts = (tsd_t *)tsd;
  83         struct sembuf           s[1];
  84
  85         for (i = 0; i < lm_optB; i++) {
  86                 s[0].sem_num = 0;
  87                 s[0].sem_op  = 1;
  88                 s[0].sem_flg = 0;
  89                 if (semop(ts->ts_semid, s, 1) == -1) {
  90                         res->re_errors++;
  91                 }
  92                 s[0].sem_num = 0;
  93                 s[0].sem_op  = -1;
  94                 s[0].sem_flg = 0;
  95                 if (semop(ts->ts_semid, s, 1) == -1) {
  96                         res->re_errors++;
  97                 }
  98         }
  99
 100         res->re_count += lm_optB;
 101
 102         return (0);
 103 }