nptl/tst-rwlock2.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 #include <errno.h>
  21 #include <pthread.h>
  22 #include <stdio.h>
  23
  24
  25 static int
  26 do_test (void)
  27 {
  28   pthread_rwlock_t r;
  29   pthread_rwlockattr_t at;
  30   int e;
  31
  32   if (pthread_rwlockattr_init (&at) != 0)
  33     {
  34       puts ("rwlockattr_init failed");
  35       return 1;
  36     }
  37   puts ("rwlockattr_init succeeded");
  38
  39 #ifndef TYPE
  40 # define TYPE PTHREAD_RWLOCK_PREFER_READER_NP
  41 #endif
  42
  43   if (pthread_rwlockattr_setkind_np (&at, TYPE) != 0)
  44     {
  45       puts ("rwlockattr_setkind failed");
  46       return 1;
  47     }
  48   puts ("rwlockattr_setkind succeeded");
  49
  50   if (pthread_rwlock_init (&r, &at) != 0)
  51     {
  52       puts ("rwlock_init failed");
  53       return 1;
  54     }
  55   puts ("rwlock_init succeeded");
  56
  57   if (pthread_rwlockattr_destroy (&at) != 0)
  58     {
  59       puts ("rwlockattr_destroy failed");
  60       return 1;
  61     }
  62   puts ("rwlockattr_destroy succeeded");
  63
  64   if (pthread_rwlock_wrlock (&r) != 0)
  65     {
  66       puts ("1st rwlock_wrlock failed");
  67       return 1;
  68     }
  69   puts ("1st rwlock_wrlock succeeded");
  70
  71   e = pthread_rwlock_tryrdlock (&r);
  72   if (e == 0)
  73     {
  74       puts ("rwlock_tryrdlock on rwlock with writer succeeded");
  75       return 1;
  76     }
  77   if (e != EBUSY)
  78     {
  79       puts ("rwlock_tryrdlock on rwlock with writer return value != EBUSY");
  80       return 1;
  81     }
  82   puts ("rwlock_tryrdlock on rwlock with writer failed with EBUSY");
  83
  84   e = pthread_rwlock_trywrlock (&r);
  85   if (e == 0)
  86     {
  87       puts ("rwlock_trywrlock on rwlock with writer succeeded");
  88       return 1;
  89     }
  90   if (e != EBUSY)
  91     {
  92       puts ("rwlock_trywrlock on rwlock with writer return value != EBUSY");
  93       return 1;
  94     }
  95   puts ("rwlock_trywrlock on rwlock with writer failed with EBUSY");
  96
  97   if (pthread_rwlock_unlock (&r) != 0)
  98     {
  99       puts ("1st rwlock_unlock failed");
 100       return 1;
 101     }
 102   puts ("1st rwlock_unlock succeeded");
 103
 104   if (pthread_rwlock_tryrdlock (&r) != 0)
 105     {
 106       puts ("rwlock_tryrdlock on unlocked rwlock failed");
 107       return 1;
 108     }
 109   puts ("rwlock_tryrdlock on unlocked rwlock succeeded");
 110
 111   e = pthread_rwlock_trywrlock (&r);
 112   if (e == 0)
 113     {
 114       puts ("rwlock_trywrlock on rwlock with reader succeeded");
 115       return 1;
 116     }
 117   if (e != EBUSY)
 118     {
 119       puts ("rwlock_trywrlock on rwlock with reader return value != EBUSY");
 120       return 1;
 121     }
 122   puts ("rwlock_trywrlock on rwlock with reader failed with EBUSY");
 123
 124   if (pthread_rwlock_unlock (&r) != 0)
 125     {
 126       puts ("2nd rwlock_unlock failed");
 127       return 1;
 128     }
 129   puts ("2nd rwlock_unlock succeeded");
 130
 131   if (pthread_rwlock_trywrlock (&r) != 0)
 132     {
 133       puts ("rwlock_trywrlock on unlocked rwlock failed");
 134       return 1;
 135     }
 136   puts ("rwlock_trywrlock on unlocked rwlock succeeded");
 137
 138   e = pthread_rwlock_tryrdlock (&r);
 139   if (e == 0)
 140     {
 141       puts ("rwlock_tryrdlock on rwlock with writer succeeded");
 142       return 1;
 143     }
 144   if (e != EBUSY)
 145     {
 146       puts ("rwlock_tryrdlock on rwlock with writer return value != EBUSY");
 147       return 1;
 148     }
 149   puts ("rwlock_tryrdlock on rwlock with writer failed with EBUSY");
 150
 151   if (pthread_rwlock_unlock (&r) != 0)
 152     {
 153       puts ("3rd rwlock_unlock failed");
 154       return 1;
 155     }
 156   puts ("3rd rwlock_unlock succeeded");
 157
 158   if (pthread_rwlock_destroy (&r) != 0)
 159     {
 160       puts ("rwlock_destroy failed");
 161       return 1;
 162     }
 163   puts ("rwlock_destroy succeeded");
 164
 165   return 0;
 166 }
 167
 168 #define TEST_FUNCTION do_test ()
 169 #include "../test-skeleton.c"