nptl/tst-join1.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 <pthread.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23
  24
  25 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
  26
  27
  28 static void *
  29 tf (void *arg)
  30 {
  31   pthread_t mh = (pthread_t) arg;
  32   void *result;
  33
  34   if (pthread_mutex_unlock (&lock) != 0)
  35     {
  36       puts ("unlock failed");
  37       exit (1);
  38     }
  39
  40   if (pthread_join (mh, &result) != 0)
  41     {
  42       puts ("join failed");
  43       exit (1);
  44     }
  45
  46   if (result != (void *) 42l)
  47     {
  48       printf ("result wrong: expected %p, got %p\n", (void *) 42, result);
  49       exit (1);
  50     }
  51
  52   exit (0);
  53 }
  54
  55
  56 static int
  57 do_test (void)
  58 {
  59   pthread_t th;
  60
  61   if (pthread_mutex_lock (&lock) != 0)
  62     {
  63       puts ("1st lock failed");
  64       exit (1);
  65     }
  66
  67   if (pthread_create (&th, NULL, tf, (void *) pthread_self ()) != 0)
  68     {
  69       puts ("create failed");
  70       exit (1);
  71     }
  72
  73   if (pthread_mutex_lock (&lock) != 0)
  74     {
  75       puts ("2nd lock failed");
  76       exit (1);
  77     }
  78
  79   pthread_exit ((void *) 42);
  80 }
  81
  82 #define TEST_FUNCTION do_test ()
  83 #include "../test-skeleton.c"