sysdeps/unix/sysv/linux/sigset-cvt-mask.h

   1 /* Convert between lowlevel sigmask and libc representation of sigset_t.
   2    Linux version.
   3    Copyright (C) 1998-2024 Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <https://www.gnu.org/licenses/>.  */
  19
  20 static inline int __attribute__ ((unused))
  21 sigset_set_old_mask (sigset_t *set, int mask)
  22 {
  23   unsigned long int *ptr;
  24   int cnt;
  25
  26   ptr = &set->__val[0];
  27
  28   *ptr++ = (unsigned int) mask;
  29
  30   cnt = _SIGSET_NWORDS - 2;
  31   do
  32     *ptr++ = 0ul;
  33   while (--cnt >= 0);
  34
  35   return 0;
  36 }
  37
  38 static inline int __attribute__ ((unused))
  39 sigset_get_old_mask (const sigset_t *set)
  40 {
  41   return (unsigned int) set->__val[0];
  42 }