nptl/tst-rwlock3.c

   1 /* Copyright (C) 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   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 /* This test case checks more than standard compliance.  An
  21    implementation may provide this service but it is not required to
  22    do so.  */
  23
  24 #include <errno.h>
  25 #include <pthread.h>
  26 #include <stdio.h>
  27
  28
  29 static int
  30 do_test (void)
  31 {
  32   pthread_rwlock_t r;
  33   int e;
  34
  35   if (pthread_rwlock_init (&r, NULL) != 0)
  36     {
  37       puts ("rwlock_init failed");
  38       return 1;
  39     }
  40   puts ("rwlock_init succeeded");
  41
  42   if (pthread_rwlock_trywrlock (&r) != 0)
  43     {
  44       puts ("rwlock_trywrlock on unlocked rwlock failed");
  45       return 1;
  46     }
  47   puts ("rwlock_trywrlock on unlocked rwlock succeeded");
  48
  49   e = pthread_rwlock_rdlock (&r);
  50   if (e == 0)
  51     {
  52       puts ("rwlock_rdlock on rwlock with writer succeeded");
  53       return 1;
  54     }
  55   if (e != EDEADLK)
  56     {
  57       puts ("rwlock_rdlock on rwlock with writer failed != EDEADLK");
  58       return 1;
  59     }
  60   puts ("rwlock_rdlock on rwlock with writer failed with EDEADLK");
  61
  62   e = pthread_rwlock_wrlock (&r);
  63   if (e == 0)
  64     {
  65       puts ("rwlock_wrlock on rwlock with writer succeeded");
  66       return 1;
  67     }
  68   if (e != EDEADLK)
  69     {
  70       puts ("rwlock_wrlock on rwlock with writer failed != EDEADLK");
  71       return 1;
  72     }
  73   puts ("rwlock_wrlock on rwlock with writer failed with EDEADLK");
  74
  75   if (pthread_rwlock_unlock (&r) != 0)
  76     {
  77       puts ("rwlock_unlock failed");
  78       return 1;
  79     }
  80   puts ("rwlock_unlock succeeded");
  81
  82   if (pthread_rwlock_destroy (&r) != 0)
  83     {
  84       puts ("rwlock_destroy failed");
  85       return 1;
  86     }
  87   puts ("rwlock_destroy succeeded");
  88
  89   return 0;
  90 }
  91
  92 #define TEST_FUNCTION do_test ()
  93 #include "../test-skeleton.c"