tests/lib/libpthread/t_rwlock.c

   1 /* $NetBSD: t_rwlock.c,v 1.1 2010/07/16 15:42:53 jmmv Exp $ */
   2
   3 /*
   4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /*-
  30  * Copyright (c)2004 YAMAMOTO Takashi,
  31  * All rights reserved.
  32  *
  33  * Redistribution and use in source and binary forms, with or without
  34  * modification, are permitted provided that the following conditions
  35  * are met:
  36  * 1. Redistributions of source code must retain the above copyright
  37  *    notice, this list of conditions and the following disclaimer.
  38  * 2. Redistributions in binary form must reproduce the above copyright
  39  *    notice, this list of conditions and the following disclaimer in the
  40  *    documentation and/or other materials provided with the distribution.
  41  *
  42  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  43  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  44  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  45  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  46  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  47  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  48  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  49  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  50  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  51  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  52  * SUCH DAMAGE.
  53  */
  54
  55 #include <sys/cdefs.h>
  56 __COPYRIGHT("@(#) Copyright (c) 2008\
  57  The NetBSD Foundation, inc. All rights reserved.");
  58 __RCSID("$NetBSD: t_rwlock.c,v 1.1 2010/07/16 15:42:53 jmmv Exp $");
  59
  60 #include <errno.h>
  61 #include <pthread.h>
  62 #include <stdlib.h>
  63 #include <string.h>
  64
  65 #include <atf-c.h>
  66
  67 #include "h_common.h"
  68
  69 pthread_rwlock_t lk;
  70
  71 struct timespec to;
  72
  73 /* ARGSUSED */
  74 static void *
  75 do_nothing(void *dummy)
  76 {
  77         return NULL;
  78 }
  79
  80 ATF_TC(rwlock1);
  81 ATF_TC_HEAD(rwlock1, tc)
  82 {
  83         atf_tc_set_md_var(tc, "descr", "Checks read/write locks");
  84 }
  85 ATF_TC_BODY(rwlock1, tc)
  86 {
  87         int error;
  88         pthread_t t;
  89
  90         PTHREAD_REQUIRE(pthread_create(&t, NULL, do_nothing, NULL));
  91         PTHREAD_REQUIRE(pthread_rwlock_init(&lk, NULL));
  92         PTHREAD_REQUIRE(pthread_rwlock_rdlock(&lk));
  93         PTHREAD_REQUIRE(pthread_rwlock_rdlock(&lk));
  94         PTHREAD_REQUIRE(pthread_rwlock_unlock(&lk));
  95
  96         ATF_REQUIRE_EQ(pthread_rwlock_trywrlock(&lk), EBUSY);
  97
  98         ATF_REQUIRE_EQ_MSG(clock_gettime(CLOCK_REALTIME, &to), 0,
  99                 "%s", strerror(errno));
 100         to.tv_sec++;
 101         error = pthread_rwlock_timedwrlock(&lk, &to);
 102         ATF_REQUIRE_MSG(error == ETIMEDOUT || error == EDEADLK,
 103                 "%s", strerror(error));
 104
 105         PTHREAD_REQUIRE(pthread_rwlock_unlock(&lk));
 106
 107         ATF_REQUIRE_EQ_MSG(clock_gettime(CLOCK_REALTIME, &to), 0,
 108                                                 "%s", strerror(errno));
 109         to.tv_sec++;
 110         PTHREAD_REQUIRE(pthread_rwlock_timedwrlock(&lk, &to));
 111
 112         ATF_REQUIRE_EQ_MSG(clock_gettime(CLOCK_REALTIME, &to), 0,
 113                                                 "%s", strerror(errno));
 114         to.tv_sec++;
 115         error = pthread_rwlock_timedwrlock(&lk, &to);
 116         ATF_REQUIRE_MSG(error == ETIMEDOUT || error == EDEADLK,
 117                 "%s", strerror(error));
 118 }
 119
 120 ATF_TP_ADD_TCS(tp)
 121 {
 122         ATF_TP_ADD_TC(tp, rwlock1);
 123
 124         return atf_no_error();
 125 }