nptl/tst-mutex6.c

   1 /* Copyright (C) 2002, 2006, 2011 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 <pthread.h>
  21 #include <signal.h>
  22 #include <stdio.h>
  23 #include <unistd.h>
  24 #include <errno.h>
  25
  26
  27 #ifndef ATTR
  28 pthread_mutexattr_t *attr;
  29 # define ATTR attr
  30 #endif
  31
  32
  33 static int
  34 do_test (void)
  35 {
  36   pthread_mutex_t m;
  37
  38   int e = pthread_mutex_init (&m, ATTR);
  39   if (ATTR != NULL && e == ENOTSUP)
  40     {
  41       puts ("cannot support selected type of mutexes");
  42       e = pthread_mutex_init (&m, NULL);
  43     }
  44   if (e != 0)
  45     {
  46       puts ("mutex_init failed");
  47       return 1;
  48     }
  49
  50   if (ATTR != NULL && pthread_mutexattr_destroy (ATTR) != 0)
  51     {
  52       puts ("mutexattr_destroy failed");
  53       return 1;
  54     }
  55
  56   if (pthread_mutex_lock (&m) != 0)
  57     {
  58       puts ("1st mutex_lock failed");
  59       return 1;
  60     }
  61
  62   /* Set an alarm for 1 second.  The wrapper will expect this.  */
  63   alarm (1);
  64
  65   /* This call should never return.  */
  66   pthread_mutex_lock (&m);
  67
  68   puts ("2nd mutex_lock returned");
  69   return 1;
  70 }
  71
  72 #define EXPECTED_SIGNAL SIGALRM
  73 #ifndef TEST_FUNCTION
  74 # define TEST_FUNCTION do_test ()
  75 #endif
  76 #include "../test-skeleton.c"