sysdeps/pthread/tst-signal4.c

   1 /* Copyright (C) 2003-2021 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 <errno.h>
  20 #include <pthread.h>
  21 #include <signal.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24
  25 static int
  26 do_test (void)
  27 {
  28   sigset_t ss;
  29
  30   sigemptyset (&ss);
  31
  32   int i;
  33   for (i = 0; i < 10000; ++i)
  34     {
  35       long int r = random ();
  36
  37       if (r != SIG_BLOCK && r != SIG_SETMASK && r != SIG_UNBLOCK)
  38         {
  39           int e = pthread_sigmask (r, &ss, NULL);
  40
  41           if (e == 0)
  42             {
  43               printf ("pthread_sigmask succeeded for how = %ld\n", r);
  44               exit (1);
  45             }
  46
  47           if (e != EINVAL)
  48             {
  49               puts ("pthread_sigmask didn't return EINVAL");
  50               exit (1);
  51             }
  52         }
  53     }
  54
  55   return 0;
  56 }
  57
  58 #define TEST_FUNCTION do_test ()
  59 #include "../test-skeleton.c"