mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-21 04:31:04 +08:00
58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/* Copyright (C) 1993, 1995, 1997, 2003 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by David Mosberger (davidm@azstarnet.com).
|
|
|
|
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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <sysdep.h>
|
|
#include <signal.h>
|
|
|
|
/* When there is kernel support for more than 64 signals, we'll have to
|
|
switch to a new system call convention here. */
|
|
|
|
int
|
|
__sigprocmask (int how, const sigset_t *set, sigset_t *oset)
|
|
{
|
|
unsigned long int setval;
|
|
long result;
|
|
|
|
if (set)
|
|
setval = set->__val[0];
|
|
else
|
|
{
|
|
setval = 0;
|
|
how = SIG_BLOCK; /* ensure blocked mask doesn't get changed */
|
|
}
|
|
|
|
result = INLINE_SYSCALL (osf_sigprocmask, 2, how, setval);
|
|
if (result == -1)
|
|
/* If there are ever more than 63 signals, we need to recode this
|
|
in assembler since we wouldn't be able to distinguish a mask of
|
|
all 1s from -1, but for now, we're doing just fine... */
|
|
return result;
|
|
|
|
if (oset)
|
|
{
|
|
oset->__val[0] = result;
|
|
result = _SIGSET_NWORDS;
|
|
while (--result > 0)
|
|
oset->__val[result] = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
weak_alias (__sigprocmask, sigprocmask);
|