mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-05 03:01:05 +00:00
65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
/* Convert between lowlevel sigmask and libc representation of sigset_t.
|
|
Generic version.
|
|
Copyright (C) 1998, 2002 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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
/* Convert between an old-style 32-bit signal mask and a POSIX sigset_t. */
|
|
|
|
/* Perform *SET = MASK. Unused bits of *SET are set to 0.
|
|
Returns zero for success or -1 for errors (from sigaddset/sigemptyset). */
|
|
static inline int __attribute__ ((unused))
|
|
sigset_set_old_mask (sigset_t *set, int mask)
|
|
{
|
|
if (sizeof (__sigset_t) == sizeof (unsigned int))
|
|
*set = (unsigned int) mask;
|
|
else
|
|
{
|
|
register unsigned int __sig;
|
|
|
|
if (__sigemptyset (set) < 0)
|
|
return -1;
|
|
|
|
for (__sig = 1; __sig < NSIG && __sig <= sizeof (mask) * 8; __sig++)
|
|
if (mask & sigmask (__sig))
|
|
if (__sigaddset (set, __sig) < 0)
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Return the sigmask corresponding to *SET.
|
|
Unused bits of *SET are thrown away. */
|
|
static inline int __attribute__ ((unused))
|
|
sigset_get_old_mask (const sigset_t *set)
|
|
{
|
|
if (sizeof (sigset_t) == sizeof (unsigned int))
|
|
return (unsigned int) *set;
|
|
else
|
|
{
|
|
unsigned int mask = 0;
|
|
register unsigned int sig;
|
|
|
|
for (sig = 1; sig < NSIG && sig <= sizeof (mask) * 8; sig++)
|
|
if (__sigismember (set, sig))
|
|
mask |= sigmask (sig);
|
|
|
|
return mask;
|
|
}
|
|
}
|