nptl/tst-mutex6.c

   1 /* Copyright (C) 2002-2016 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, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <pthread.h>
  20 #include <signal.h>
  21 #include <stdio.h>
  22 #include <unistd.h>
  23 #include <errno.h>
  24 #include <stdbool.h>
  25
  26
  27 #ifndef ATTR
  28 pthread_mutexattr_t *attr;
  29 # define ATTR attr
  30 #endif
  31
  32 #ifndef ATTR_NULL
  33 # define ATTR_NULL (ATTR == NULL)
  34 #endif
  35
  36 static int
  37 do_test (void)
  38 {
  39   pthread_mutex_t m;
  40
  41   int e = pthread_mutex_init (&m, ATTR);
  42   if (!ATTR_NULL && e == ENOTSUP)
  43     {
  44       puts ("cannot support selected type of mutexes");
  45       e = pthread_mutex_init (&m, NULL);
  46     }
  47   if (e != 0)
  48     {
  49       puts ("mutex_init failed");
  50       return 1;
  51     }
  52
  53   if (!ATTR_NULL && pthread_mutexattr_destroy (ATTR) != 0)
  54     {
  55       puts ("mutexattr_destroy failed");
  56       return 1;
  57     }
  58
  59   if (pthread_mutex_lock (&m) != 0)
  60     {
  61       puts ("1st mutex_lock failed");
  62       return 1;
  63     }
  64
  65   /* Set an alarm for 1 second.  The wrapper will expect this.  */
  66   alarm (1);
  67
  68   /* This call should never return.  */
  69   pthread_mutex_lock (&m);
  70
  71   puts ("2nd mutex_lock returned");
  72   return 1;
  73 }
  74
  75 #define EXPECTED_SIGNAL SIGALRM
  76 #ifndef TEST_FUNCTION
  77 # define TEST_FUNCTION do_test ()
  78 #endif
  79 #include "../test-skeleton.c"