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/* Copyright (C) 2002 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 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)unistd.h 8.2 (Berkeley) 1/7/94
* $FreeBSD: src/sys/sys/unistd.h,v 1.22.2.1 2000/03/18 23:20:12 jasone Exp $
*/
#ifndef _SYS_RFORK_H
#define _SYS_RFORK_H
#include <features.h>
/*
* rfork() options.
*
* XXX currently, operations without RFPROC set are not supported.
*/
#define RFNAMEG (1<<0) /* UNIMPL new plan9 `name space' */
#define RFENVG (1<<1) /* UNIMPL copy plan9 `env space' */
#define RFFDG (1<<2) /* copy fd table */
#define RFNOTEG (1<<3) /* UNIMPL create new plan9 `note group' */
#define RFPROC (1<<4) /* change child (else changes curproc) */
#define RFMEM (1<<5) /* share `address space' */
#define RFNOWAIT (1<<6) /* parent need not wait() on child */
#define RFCNAMEG (1<<10) /* UNIMPL zero plan9 `name space' */
#define RFCENVG (1<<11) /* UNIMPL zero plan9 `env space' */
#define RFCFDG (1<<12) /* zero fd table */
#define RFTHREAD (1<<13) /* enable kernel thread support */
#define RFSIGSHARE (1<<14) /* share signal handlers */
#define RFLINUXTHPN (1<<16) /* do linux clone exit parent notification */
#define RFSTOPPED (1<<17) /* leave child in a stopped state */
#define RFHIGHPID (1<<18) /* use a pid higher than 10 (idleproc) */
#define RFTSIGZMB (1<<19) /* select signal for exit parent notification */
#define RFTSIGSHIFT 20 /* selected signal number is in bits 20-27 */
#define RFTSIGMASK 0xFF
#define RFTSIGNUM(flags) (((flags) >> RFTSIGSHIFT) & RFTSIGMASK)
#define RFTSIGFLAGS(signum) ((signum) << RFTSIGSHIFT)
#define RFPPWAIT (1<<31) /* parent sleeps until child exits (vfork) */
#define RFTHPNSHIFT 24 /* reserve bits 24-30 */
#define RFTHPNMASK 0x7F /* for compatibility with linuxthreads/clone() */
/* allow to specify "clone exit parent notification" signal */
#define RFTHPNSIGNUM(flags) (((flags) >> RFTHPNSHIFT) & RFTHPNMASK)
__BEGIN_DECLS
extern int rfork (int __flags) __THROW;
#ifdef _LIBC
extern int __rfork (int __flags);
#endif
__END_DECLS
#endif /* _SYS_RFORK_H */
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