nptl/tst-cancel-self-cancelstate.c

   1 /* Copyright (C) 2012-2019 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 #include <unistd.h>
  23 #include "tst-cancel-self-cleanup.c"
  24
  25
  26 static int
  27 do_test (void)
  28 {
  29   int ret = 0;
  30   volatile int should_fail = 1;
  31
  32   pthread_cleanup_push (cleanup, (void *) &should_fail);
  33
  34   if ((ret = pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, NULL)) != 0)
  35     {
  36       printf ("setcancelstate(disable) failed: %s\n", strerror (ret));
  37       exit (1);
  38     }
  39
  40   if ((ret = pthread_cancel (pthread_self ())) != 0)
  41     {
  42       printf ("cancel failed: %s\n", strerror (ret));
  43       exit (1);
  44     }
  45
  46   usleep (100);
  47   should_fail = 0;
  48
  49   if ((ret = pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL)) != 0)
  50     {
  51       printf ("setcancelstate(enable) failed: %s\n", strerror (ret));
  52       exit (1);
  53     }
  54
  55   /* The write syscall within this printf should give us our cancellation
  56      point.  */
  57   printf ("Could not cancel self.\n");
  58   pthread_cleanup_pop (0);
  59
  60   return 1;
  61 }
  62
  63
  64 #define TEST_FUNCTION do_test ()
  65 #include "../test-skeleton.c"