nptl/tst-robust7.c

   1 /* Copyright (C) 2005 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2005.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <errno.h>
  21 #include <pthread.h>
  22 #include <stdbool.h>
  23 #include <stdio.h>
  24
  25
  26 static pthread_barrier_t b;
  27 static pthread_cond_t c = PTHREAD_COND_INITIALIZER;
  28 static pthread_mutex_t m;
  29 static bool first = true;
  30
  31
  32 static void *
  33 tf (void *arg)
  34 {
  35   long int n = (long int) arg;
  36
  37   if (pthread_mutex_lock (&m) != 0)
  38     {
  39       printf ("thread %ld: mutex_lock failed\n", n + 1);
  40       exit (1);
  41     }
  42
  43   int e = pthread_barrier_wait (&b);
  44   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  45     {
  46       printf ("thread %ld: barrier_wait failed\n", n + 1);
  47       exit (1);
  48     }
  49
  50   e = pthread_cond_wait (&c, &m);
  51   if (first)
  52     {
  53       if (e != 0)
  54         {
  55           printf ("thread %ld: cond_wait failed\n", n + 1);
  56           exit (1);
  57         }
  58       first = false;
  59     }
  60   else
  61     {
  62       if (e != EOWNERDEAD)
  63         {
  64           printf ("thread %ld: cond_wait did not return EOWNERDEAD\n", n + 1);
  65           exit (1);
  66         }
  67     }
  68
  69   if (pthread_cancel (pthread_self ()) != 0)
  70     {
  71       printf ("thread %ld: cancel failed\n", n + 1);
  72       exit (1);
  73     }
  74
  75   pthread_testcancel ();
  76
  77   printf ("thread %ld: testcancel returned\n", n + 1);
  78   exit (1);
  79 }
  80
  81
  82 static int
  83 do_test (void)
  84 {
  85   pthread_mutexattr_t a;
  86   if (pthread_mutexattr_init (&a) != 0)
  87     {
  88       puts ("mutexattr_init failed");
  89       return 1;
  90     }
  91
  92   if (pthread_mutexattr_setrobust_np (&a, PTHREAD_MUTEX_ROBUST_NP) != 0)
  93     {
  94       puts ("mutexattr_setrobust failed");
  95       return 1;
  96     }
  97
  98   if (pthread_mutex_init (&m, &a) != 0)
  99     {
 100       puts ("mutex_init failed");
 101       return 1;
 102     }
 103
 104   if (pthread_mutexattr_destroy (&a) != 0)
 105     {
 106       puts ("mutexattr_destroy failed");
 107       return 1;
 108     }
 109
 110   if (pthread_barrier_init (&b, NULL, 2) != 0)
 111     {
 112       puts ("barrier_init failed");
 113       return 1;
 114     }
 115
 116 #define N 5
 117   pthread_t th[N];
 118   for (long int n = 0; n < N; ++n)
 119     {
 120       if (pthread_create (&th[n], NULL, tf, (void *) n) != 0)
 121         {
 122           printf ("pthread_create loop %ld failed\n", n + 1);
 123           return 1;
 124         }
 125
 126       int e = pthread_barrier_wait (&b);
 127       if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
 128         {
 129           printf ("parent: barrier_wait failed in round %ld\n", n + 1);
 130           return 1;
 131         }
 132     }
 133
 134   if (pthread_mutex_lock (&m) != 0)
 135     {
 136       puts ("parent: mutex_lock failed");
 137       return 1;
 138     }
 139
 140   if (pthread_mutex_unlock (&m) != 0)
 141     {
 142       puts ("parent: mutex_unlock failed");
 143       return 1;
 144     }
 145
 146   if (pthread_cond_broadcast (&c) != 0)
 147     {
 148       puts ("cond_broadcast failed");
 149       return 1;
 150     }
 151
 152   for (int n = 0; n < N; ++n)
 153     {
 154       void *res;
 155       if (pthread_join (th[n], &res) != 0)
 156         {
 157           printf ("join round %d failed\n", n + 1);
 158           return 1;
 159         }
 160       if (res != PTHREAD_CANCELED)
 161         {
 162           printf ("thread %d not canceled\n", n + 1);
 163           return 1;
 164         }
 165     }
 166
 167   int e = pthread_mutex_lock (&m);
 168   if (e == 0)
 169     {
 170       puts ("parent: 2nd mutex_lock succeeded");
 171       return 1;
 172     }
 173   if (e != EOWNERDEAD)
 174     {
 175       puts ("parent: mutex_lock did not return EOWNERDEAD");
 176       return 1;
 177     }
 178
 179   if (pthread_mutex_unlock (&m) != 0)
 180     {
 181       puts ("parent: 2nd mutex_unlock failed");
 182       return 1;
 183     }
 184
 185   if (pthread_mutex_destroy (&m) != 0)
 186     {
 187       puts ("mutex_destroy failed");
 188       return 1;
 189     }
 190
 191   return 0;
 192 }
 193
 194 #define TEST_FUNCTION do_test ()
 195 #include "../test-skeleton.c"