| /* Copyright (C) 1993-2014 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); |