nptl/tst-join5.c

   1 /* Copyright (C) 2003 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
   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 #include <stdlib.h>
  24
  25
  26 static void *
  27 tf1 (void *arg)
  28 {
  29   pthread_join ((pthread_t) arg, NULL);
  30
  31   puts ("1st join returned");
  32
  33   return (void *) 1l;
  34 }
  35
  36
  37 static void *
  38 tf2 (void *arg)
  39 {
  40   pthread_join ((pthread_t) arg, NULL);
  41
  42   puts ("2nd join returned");
  43
  44   return (void *) 1l;
  45 }
  46
  47
  48 static int
  49 do_test (void)
  50 {
  51   pthread_t th;
  52
  53   int err = pthread_join (pthread_self (), NULL);
  54   if (err == 0)
  55     {
  56       puts ("1st circular join succeeded");
  57       exit (1);
  58     }
  59   if (err != EDEADLK)
  60     {
  61       printf ("1st circular join %d, not EDEADLK\n", err);
  62       exit (1);
  63     }
  64
  65   if (pthread_create (&th, NULL, tf1, (void *) pthread_self ()) != 0)
  66     {
  67       puts ("1st create failed");
  68       exit (1);
  69     }
  70
  71   if (pthread_cancel (th) != 0)
  72     {
  73       puts ("cannot cancel 1st thread");
  74       exit (1);
  75     }
  76
  77   void *r;
  78   err = pthread_join (th, &r);
  79   if (err != 0)
  80     {
  81       printf ("cannot join 1st thread: %d\n", err);
  82       exit (1);
  83     }
  84   if (r != PTHREAD_CANCELED)
  85     {
  86       puts ("1st thread not canceled");
  87       exit (1);
  88     }
  89
  90   err = pthread_join (pthread_self (), NULL);
  91   if (err == 0)
  92     {
  93       puts ("2nd circular join succeeded");
  94       exit (1);
  95     }
  96   if (err != EDEADLK)
  97     {
  98       printf ("2nd circular join %d, not EDEADLK\n", err);
  99       exit (1);
 100     }
 101
 102   if (pthread_create (&th, NULL, tf2, (void *) pthread_self ()) != 0)
 103     {
 104       puts ("2nd create failed");
 105       exit (1);
 106     }
 107
 108   if (pthread_cancel (th) != 0)
 109     {
 110       puts ("cannot cancel 2nd thread");
 111       exit (1);
 112     }
 113
 114   if (pthread_join (th, &r) != 0)
 115     {
 116       puts ("cannot join 2nd thread");
 117       exit (1);
 118     }
 119   if (r != PTHREAD_CANCELED)
 120     {
 121       puts ("2nd thread not canceled");
 122       exit (1);
 123     }
 124
 125   err = pthread_join (pthread_self (), NULL);
 126   if (err == 0)
 127     {
 128       puts ("2nd circular join succeeded");
 129       exit (1);
 130     }
 131   if (err != EDEADLK)
 132     {
 133       printf ("2nd circular join %d, not EDEADLK\n", err);
 134       exit (1);
 135     }
 136
 137   exit (0);
 138 }
 139
 140 #define TEST_FUNCTION do_test ()
 141 #include "../test-skeleton.c"