sigset-cvt-mask.h

Glibc 2.3.2源代码(解压后有100多M)

/* Convert between lowlevel sigmask and libc representation of sigset_t.
   Linux version.
   Copyright (C) 1998, 2002 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Joe Keane <[e-mail]>.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

static inline int __attribute__ ((unused))
sigset_set_old_mask (sigset_t *set, int mask)
{
  unsigned long int *ptr;
  int cnt;

  ptr = &set->__val[0];

  *ptr++ = (unsigned int) mask;

  cnt = _SIGSET_NWORDS - 2;
  do
    *ptr++ = 0ul;
  while (--cnt >= 0);

  return 0;
}

static inline int __attribute__ ((unused))
sigset_get_old_mask (const sigset_t *set)
{
  return (unsigned int) set->__val[0];
}