/*-

 * Copyright (c) 1982, 1986, 1989, 1993, 1994

 *	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.

 * © Portions copyright (c) 2007 Symbian Software Ltd. All rights reserved.

 *	@(#)wait.h	8.2 (Berkeley) 7/10/94

 * $FreeBSD: src/sys/sys/wait.h,v 1.21 2005/01/05 22:19:44 jhb Exp $

 */

#ifndef _SYS_WAIT_H_

#define _SYS_WAIT_H_

#include <sys/cdefs.h>

/*

 * This file holds definitions relevant to the wait4 system call and the

 * alternate interfaces that use it (wait, wait3, waitpid).

 */

/*

 * Macros to test the exit status returned by wait and extract the relevant

 * values.

 */

#if __BSD_VISIBLE

#define	_W_INT(w)	(*(int *)&(w))	/* Convert union wait to int. */

#define	WCOREFLAG	0200

#else

#define	_W_INT(i)	(i)

#endif

#define	_WSTATUS(x)	(_W_INT(x) & 0177)

#define	_WSTOPPED	0177		/* _WSTATUS if process is stopped */

#define	WIFSTOPPED(x)	(_WSTATUS(x) == _WSTOPPED)

#define	WSTOPSIG(x)	(_W_INT(x) >> 8)

#define	WIFSIGNALED(x)	(_WSTATUS(x) != _WSTOPPED && _WSTATUS(x) != 0)

#define	WTERMSIG(x)	(_WSTATUS(x))

#define	WIFEXITED(x)	(_WSTATUS(x) == 0)

#define	WEXITSTATUS(x)	(_W_INT(x) >> 8)

#define	WIFCONTINUED(x)	(x == 0x13)	/* 0x13 == SIGCONT */

#if __BSD_VISIBLE

#define	WCOREDUMP(x)	(_W_INT(x) & WCOREFLAG)

#define	W_EXITCODE(ret, sig)	((ret) << 8 | (sig))

#define	W_STOPCODE(sig)		((sig) << 8 | _WSTOPPED)

#endif

#ifdef __SYMBIAN32__

#define WIFTERMINATED(x) (_WSTATUS(x)==1)

#define WTERMINATESTATUS(x)	 (_W_INT(x) >> 8)

#define WIFPANICED(x)	 (_WSTATUS(x)==2)

#define WPANICCODE(x)		 (_W_INT(x) >> 8)

#endif	/* __SYMBIAN32__ */

/*

 * Option bits for the third argument of wait4.  WNOHANG causes the

 * wait to not hang if there are no stopped or terminated processes, rather

 * returning an error indication in this case (pid==0).  WUNTRACED

 * indicates that the caller should receive status about untraced children

 * which stop due to signals.  If children are stopped and a wait without

 * this option is done, it is as though they were still running... nothing

 * about them is returned.

 */

#define	WNOHANG		1	/* Don't hang in wait. */

#define	WUNTRACED	2	/* Tell about stopped, untraced children. */

#define	WCONTINUED	4	/* Report a job control continued process. */

#if __BSD_VISIBLE

#define	WLINUXCLONE 0x80000000	/* Wait for kthread spawned from linux_clone. */

#endif

/*

 * Tokens for special values of the "pid" parameter to wait4.

 */

#if __BSD_VISIBLE

#define	WAIT_ANY	(-1)	/* any process */

#define	WAIT_MYPGRP	0	/* any process in my process group */

#endif /* __BSD_VISIBLE */

#ifndef _KERNEL

#include <sys/types.h>

__BEGIN_DECLS

IMPORT_C

pid_t	wait(int *);

IMPORT_C

pid_t	waitpid(pid_t, int *, int);

#if __BSD_VISIBLE

struct rusage;

#endif

__END_DECLS

#endif /* !_KERNEL */

#endif /* !_SYS_WAIT_H_ */