sysdeps/pthread/tst-signal8.c

   1 /* Tests for sigisemptyset and pthread_sigmask.
   2    Copyright (C) 2020-2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   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 <signal.h>
  20
  21 #include <support/check.h>
  22 #include <support/xthread.h>
  23
  24 static void *
  25 tf (void *arg)
  26 {
  27   {
  28     sigset_t set;
  29     sigemptyset (&set);
  30     TEST_COMPARE (pthread_sigmask (SIG_BLOCK, 0, &set), 0);
  31     TEST_COMPARE (sigisemptyset (&set), 1);
  32   }
  33
  34   {
  35     sigset_t set;
  36     sigfillset (&set);
  37     TEST_COMPARE (pthread_sigmask (SIG_BLOCK, 0, &set), 0);
  38     TEST_COMPARE (sigisemptyset (&set), 1);
  39   }
  40
  41   return NULL;
  42 }
  43
  44 static int
  45 do_test (void)
  46 {
  47   /* Ensure current SIG_BLOCK mask empty.  */
  48   {
  49     sigset_t set;
  50     sigemptyset (&set);
  51     TEST_COMPARE (sigprocmask (SIG_BLOCK, &set, 0), 0);
  52   }
  53
  54   {
  55     pthread_t thr = xpthread_create (NULL, tf, NULL);
  56     xpthread_join (thr);
  57   }
  58
  59   return 0;
  60 }
  61
  62 #include <support/test-driver.c>