1 /* Copyright (C) 1993, 1995, 1997 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by David Mosberger (davidm@azstarnet.com).
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
23 /* When there is kernel support for more than 64 signals, we'll have to
24 switch to a new system call convention here. */
26 extern unsigned long __osf_sigprocmask (int how
, unsigned long newmask
);
29 __sigprocmask (int how
, const sigset_t
*set
, sigset_t
*oset
)
31 unsigned long int setval
;
36 setval
= set
->__val
[0];
41 how
= SIG_BLOCK
; /* ensure blocked mask doesn't get changed */
43 result
= __osf_sigprocmask (how
, setval
);
45 /* If there are ever more than 63 signals, we need to recode this
46 in assembler since we wouldn't be able to distinguish a mask of
47 all 1s from -1, but for now, we're doing just fine... */
52 oset
->__val
[0] = result
;
53 result
= _SIGSET_NWORDS
;
55 oset
->__val
[result
] = 0;
60 weak_alias (__sigprocmask
, sigprocmask
);