glibc/sysdeps/unix/sysv/sco3.2.4/sigaction.h

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1995-02-18 01:27:10 +00:00
/* The proper definitions for SCO's sigaction.
Copyright (C) 1993, 1994, 1996 Free Software Foundation, Inc.
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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 Free Software Foundation, Inc., 675 Mass Ave,
1995-02-18 01:27:10 +00:00
Cambridge, MA 02139, USA. */
/* 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'. */
#define SA_NOCLDSTOP 0x01 /* Don't send SIGCHLD when children stop. */
/* Values for the HOW argument to `sigprocmask'. */
#define SIG_SETMASK 0 /* Set the set of blocked signals. */
#define SIG_BLOCK 1 /* Block signals. */
#define SIG_UNBLOCK 2 /* Unblock signals. */