tests/lib/libpthread/t_join.c

   1 /* $NetBSD: t_join.c,v 1.8 2012/03/12 20:17:16 joerg Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2010 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jukka Ruohonen.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 #include <sys/cdefs.h>
  32 __RCSID("$NetBSD: t_join.c,v 1.8 2012/03/12 20:17:16 joerg Exp $");
  33
  34 #include <errno.h>
  35 #include <pthread.h>
  36 #include <stdint.h>
  37
  38 #include <atf-c.h>
  39
  40 #include "h_common.h"
  41
  42 #ifdef CHECK_STACK_ALIGNMENT
  43 extern int check_stack_alignment(void);
  44 #endif
  45
  46 #define STACKSIZE       65536
  47
  48 static bool error;
  49
  50 static void *threadfunc1(void *);
  51 static void *threadfunc2(void *);
  52
  53 ATF_TC(pthread_join);
  54 ATF_TC_HEAD(pthread_join, tc)
  55 {
  56
  57         atf_tc_set_md_var(tc, "descr",
  58             "Checks basic error conditions in pthread_join(3)");
  59 }
  60
  61 ATF_TC_BODY(pthread_join, tc)
  62 {
  63         pthread_t thread;
  64
  65         PTHREAD_REQUIRE(pthread_create(&thread, NULL, threadfunc1, NULL));
  66         PTHREAD_REQUIRE(pthread_join(thread, NULL));
  67 }
  68
  69 static void *
  70 threadfunc1(void *arg)
  71 {
  72         pthread_t thread[25];
  73         pthread_t caller;
  74         void *val = NULL;
  75         uintptr_t i;
  76         int rv;
  77         pthread_attr_t attr;
  78
  79         caller = pthread_self();
  80
  81 #ifdef CHECK_STACK_ALIGNMENT
  82         /*
  83          * Check alignment of thread stack, if supported.
  84          */
  85         ATF_REQUIRE(check_stack_alignment());
  86 #endif
  87
  88         /*
  89          * The behavior is undefined, but should error
  90          * out, if we try to join the calling thread.
  91          */
  92         rv = pthread_join(caller, NULL);
  93
  94         /*
  95          * The specification recommends EDEADLK.
  96          */
  97         ATF_REQUIRE(rv != 0);
  98         ATF_REQUIRE_EQ(rv, EDEADLK);
  99
 100         ATF_REQUIRE(pthread_attr_init(&attr) == 0);
 101
 102         for (i = 0; i < __arraycount(thread); i++) {
 103
 104                 error = true;
 105
 106                 ATF_REQUIRE(pthread_attr_setstacksize(&attr, STACKSIZE * (i + 1)) == 0);
 107
 108                 rv = pthread_create(&thread[i], &attr, threadfunc2, (void *)i);
 109
 110                 ATF_REQUIRE_EQ(rv, 0);
 111
 112                 /*
 113                  * Check join and exit condition.
 114                  */
 115                 PTHREAD_REQUIRE(pthread_join(thread[i], &val));
 116
 117                 ATF_REQUIRE_EQ(error, false);
 118
 119                 ATF_REQUIRE(val != NULL);
 120                 ATF_REQUIRE(val == (void *)(i + 1));
 121
 122                 /*
 123                  * Once the thread has returned, ESRCH should
 124                  * again follow if we try to join it again.
 125                  */
 126                 rv = pthread_join(thread[i], NULL);
 127
 128                 ATF_REQUIRE_EQ(rv, ESRCH);
 129
 130                 /*
 131                  * Try to detach the exited thread.
 132                  */
 133                 rv = pthread_detach(thread[i]);
 134
 135                 ATF_REQUIRE(rv != 0);
 136         }
 137
 138         ATF_REQUIRE(pthread_attr_destroy(&attr) == 0);
 139
 140         pthread_exit(NULL);
 141
 142         return NULL;
 143 }
 144
 145 static void *
 146 threadfunc2(void *arg)
 147 {
 148         static uintptr_t i = 0;
 149         uintptr_t j;
 150         pthread_attr_t attr;
 151         size_t stacksize;
 152
 153         j = (uintptr_t)arg;
 154
 155         ATF_REQUIRE(pthread_attr_get_np(pthread_self(), &attr) == 0);
 156         ATF_REQUIRE(pthread_attr_getstacksize(&attr, &stacksize) == 0);
 157         ATF_REQUIRE(stacksize == STACKSIZE * (j + 1));
 158         ATF_REQUIRE(pthread_attr_destroy(&attr) == 0);
 159
 160         if (i++ == j)
 161                 error = false;
 162
 163         pthread_exit((void *)i);
 164
 165         return NULL;
 166 }
 167
 168 ATF_TP_ADD_TCS(tp)
 169 {
 170
 171         ATF_TP_ADD_TC(tp, pthread_join);
 172
 173         return atf_no_error();
 174 }