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 Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5    Contributed by Joe Keane <jgk@jgk.org>.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Library General Public License as
   9    published by the Free Software Foundation; either version 2 of the
  10    License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Library General Public License for more details.
  16
  17    You should have received a copy of the GNU Library General Public
  18    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  19    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #define sigset_set_old_mask(set, mask) \
  23   do {                                                                        \
  24     unsigned long int *__ptr;                                                 \
  25     int __cnt;                                                                \
  26     __ptr = &(set)->__val[0];                                                 \
  27     *__ptr++ = (unsigned long int) (mask);                                    \
  28     __cnt = _SIGSET_NWORDS - 2;                                               \
  29     do                                                                        \
  30       *__ptr++ = 0ul;                                                         \
  31     while (--__cnt >= 0);                                                     \
  32   } while (0)
  33
  34 #define sigset_get_old_mask(set, mask) \
  35   ((mask) = (unsigned int) (set)->__val[0])