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This commit is contained in:
Brendan Kehoe 1993-03-08 19:57:16 +00:00
parent d9179a0922
commit 33ff6c90ec
1 changed files with 54 additions and 0 deletions
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54
sysdeps/unix/sysv/sysv4/sigaction.h Normal file
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/* Copyright (C) 1991, 1992, 1993 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. */
/* The proper definitions for SVR4's sigaction.
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;
/* Padding. */
int sa_resv[2];
};
/* Bits in `sa_flags'. */
#define SA_ONSTACK 0x1 /* Take signal on signal stack. */
#define SA_RESETHAND 0x2 /* Reset to SIG_DFL on entry to handler. */
#define SA_RESTART 0x4 /* Don't restart syscall on signal return. */
#define SA_SIGINFO 0x8 /* Provide additional info to the handler. */
#define SA_NODEFER 0x10 /* Don't automatically block the signal when
its handler is being executed. */
#define SA_NOSCLDWAIT 0x10000 /* Don't create zombie processes. */
#define SA_NOCLDSTOP 0x20000 /* 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. */