1  /* Convert between lowlevel sigmask and libc representation of sigset_t.
       2     Linux version.
       3     Copyright (C) 1998-2023 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  }