sysdeps/pthread/tst-cancel10.c

   1 /* Copyright (C) 2003-2022 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <pthread.h>
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22
  23
  24 static void
  25 cleanup (void *arg)
  26 {
  27   /* Just for fun.  */
  28   if (pthread_cancel (pthread_self ()) != 0)
  29     {
  30       puts ("cleanup: cancel failed");
  31       exit (1);
  32     }
  33
  34   printf ("cleanup for %ld\n", (long int) arg);
  35 }
  36
  37
  38 static void *
  39 tf (void *arg)
  40 {
  41   long int n = (long int) arg;
  42
  43   pthread_cleanup_push (cleanup, arg);
  44
  45   if (pthread_setcanceltype ((n & 1) == 0
  46                              ? PTHREAD_CANCEL_DEFERRED
  47                              : PTHREAD_CANCEL_ASYNCHRONOUS, NULL) != 0)
  48     {
  49       puts ("setcanceltype failed");
  50       exit (1);
  51     }
  52
  53   if (pthread_cancel (pthread_self ()) != 0)
  54     {
  55       puts ("cancel failed");
  56       exit (1);
  57     }
  58
  59   pthread_testcancel ();
  60
  61   /* We should never come here.  */
  62
  63   pthread_cleanup_pop (0);
  64
  65   return NULL;
  66 }
  67
  68
  69 static int
  70 do_test (void)
  71 {
  72   pthread_attr_t at;
  73
  74   if (pthread_attr_init (&at) != 0)
  75     {
  76       puts ("attr_init failed");
  77       return 1;
  78     }
  79
  80   if (pthread_attr_setstacksize (&at, 1 * 1024 * 1024) != 0)
  81     {
  82       puts ("attr_setstacksize failed");
  83       return 1;
  84     }
  85
  86 #define N 20
  87   int i;
  88   pthread_t th[N];
  89
  90   for (i = 0; i < N; ++i)
  91     if (pthread_create (&th[i], &at, tf, (void *) (long int) i) != 0)
  92       {
  93         puts ("create failed");
  94         exit (1);
  95       }
  96
  97   if (pthread_attr_destroy (&at) != 0)
  98     {
  99       puts ("attr_destroy failed");
 100       return 1;
 101     }
 102
 103   for (i = 0; i < N; ++i)
 104     {
 105       void *r;
 106       if (pthread_join (th[i], &r) != 0)
 107         {
 108           puts ("join failed");
 109           exit (1);
 110         }
 111
 112       if (r != PTHREAD_CANCELED)
 113         {
 114           puts ("thread not canceled");
 115           exit (1);
 116         }
 117     }
 118
 119   return 0;
 120 }
 121
 122
 123 #define TEST_FUNCTION do_test ()
 124 #include "../test-skeleton.c"