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- /* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- /* These definitions match those used by the 4.4 BSD kernel.
- If the operating system has a `sigaction' system call that correctly
- implements the POSIX.1 behavior, there should be a system-dependent
- version of this file that defines `struct sigaction' and the `SA_*'
- constants appropriately. */
-
- /* Structure describing the action to be taken when a signal arrives. */
- struct sigaction
- {
- /* Signal handler. */
- __sighandler_t sa_handler;
-
- /* Additional set of signals to be blocked. */
- __sigset_t sa_mask;
-
- /* Special flags. */
- int sa_flags;
- };
-
- /* Bits in `sa_flags'. */
- #ifdef __USE_BSD
- #define SA_ONSTACK 0x1 /* Take signal on signal stack. */
- #define SA_RESTART 0x2 /* Don't restart syscall on signal return. */
- #define SA_DISABLE 0x4 /* Disable alternate signal stack. */
- #endif
- #define SA_NOCLDSTOP 0x8 /* Don't send SIGCHLD when children stop. */
-
-
- /* Values for the HOW argument to `sigprocmask'. */
- #define SIG_BLOCK 1 /* Block signals. */
- #define SIG_UNBLOCK 2 /* Unblock signals. */
- #define SIG_SETMASK 3 /* Set the set of blocked signals. */
-