nptl/tst-cancel10.c

   1 /* Copyright (C) 2003-2019 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, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <pthread.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23
  24
  25 static void
  26 cleanup (void *arg)
  27 {
  28   /* Just for fun.  */
  29   if (pthread_cancel (pthread_self ()) != 0)
  30     {
  31       puts ("cleanup: cancel failed");
  32       exit (1);
  33     }
  34
  35   printf ("cleanup for %ld\n", (long int) arg);
  36 }
  37
  38
  39 static void *
  40 tf (void *arg)
  41 {
  42   long int n = (long int) arg;
  43
  44   pthread_cleanup_push (cleanup, arg);
  45
  46   if (pthread_setcanceltype ((n & 1) == 0
  47                              ? PTHREAD_CANCEL_DEFERRED
  48                              : PTHREAD_CANCEL_ASYNCHRONOUS, NULL) != 0)
  49     {
  50       puts ("setcanceltype failed");
  51       exit (1);
  52     }
  53
  54   if (pthread_cancel (pthread_self ()) != 0)
  55     {
  56       puts ("cancel failed");
  57       exit (1);
  58     }
  59
  60   pthread_testcancel ();
  61
  62   /* We should never come here.  */
  63
  64   pthread_cleanup_pop (0);
  65
  66   return NULL;
  67 }
  68
  69
  70 static int
  71 do_test (void)
  72 {
  73   pthread_attr_t at;
  74
  75   if (pthread_attr_init (&at) != 0)
  76     {
  77       puts ("attr_init failed");
  78       return 1;
  79     }
  80
  81   if (pthread_attr_setstacksize (&at, 1 * 1024 * 1024) != 0)
  82     {
  83       puts ("attr_setstacksize failed");
  84       return 1;
  85     }
  86
  87 #define N 20
  88   int i;
  89   pthread_t th[N];
  90
  91   for (i = 0; i < N; ++i)
  92     if (pthread_create (&th[i], &at, tf, (void *) (long int) i) != 0)
  93       {
  94         puts ("create failed");
  95         exit (1);
  96       }
  97
  98   if (pthread_attr_destroy (&at) != 0)
  99     {
 100       puts ("attr_destroy failed");
 101       return 1;
 102     }
 103
 104   for (i = 0; i < N; ++i)
 105     {
 106       void *r;
 107       if (pthread_join (th[i], &r) != 0)
 108         {
 109           puts ("join failed");
 110           exit (1);
 111         }
 112
 113       if (r != PTHREAD_CANCELED)
 114         {
 115           puts ("thread not canceled");
 116           exit (1);
 117         }
 118     }
 119
 120   return 0;
 121 }
 122
 123
 124 #define TEST_FUNCTION do_test ()
 125 #include "../test-skeleton.c"