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

44 lines
1.3 KiB
C

/* Convert between lowlevel sigmask and libc representation of sigset_t.
Linux version.
Copyright (C) 1998-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Joe Keane <jgk@jgk.org>.
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, see
<https://www.gnu.org/licenses/>. */
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];
}