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