From e2abcdca396661cbe0ae2ddb13d5c2b85682c13a Mon Sep 17 00:00:00 2001
From: Cem Keylan <cem@ckyln.com>
Date: Fri, 16 Oct 2020 17:41:25 +0300
Subject: initial commit

---
 sys/sys/wait.h | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 sys/sys/wait.h

(limited to 'sys/sys/wait.h')

diff --git a/sys/sys/wait.h b/sys/sys/wait.h
new file mode 100644
index 0000000..0e85f40
--- /dev/null
+++ b/sys/sys/wait.h
@@ -0,0 +1,103 @@
+/*	$OpenBSD: wait.h,v 1.17 2014/06/13 22:40:31 matthew Exp $	*/
+/*	$NetBSD: wait.h,v 1.11 1996/04/09 20:55:51 cgd Exp $	*/
+
+/*
+ * 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.
+ * 3. 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.
+ *
+ *	@(#)wait.h	8.2 (Berkeley) 7/10/94
+ */
+
+#ifndef _SYS_WAIT_H_
+#define _SYS_WAIT_H_
+
+#include <sys/cdefs.h>
+
+/*
+ * This file holds definitions relevent 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.
+ */
+#define	_WSTATUS(x)	((x) & 0177)
+#define	_WSTOPPED	0177		/* _WSTATUS if process is stopped */
+#define	_WCONTINUED	0177777		/* process has continued */
+#define WIFSTOPPED(x)	(((x) & 0xff) == _WSTOPPED)
+#define WSTOPSIG(x)	(int)(((unsigned)(x) >> 8) & 0xff)
+#define WIFSIGNALED(x)	(_WSTATUS(x) != _WSTOPPED && _WSTATUS(x) != 0)
+#define WTERMSIG(x)	(_WSTATUS(x))
+#define WIFEXITED(x)	(_WSTATUS(x) == 0)
+#define WEXITSTATUS(x)	(int)(((unsigned)(x) >> 8) & 0xff)
+#define WIFCONTINUED(x)	(((x) & _WCONTINUED) == _WCONTINUED)
+#if __XPG_VISIBLE
+#define	WCOREFLAG	0200
+#define WCOREDUMP(x)	((x) & WCOREFLAG)
+
+#define	W_EXITCODE(ret, sig)	((ret) << 8 | (sig))
+#define	W_STOPCODE(sig)		((sig) << 8 | _WSTOPPED)
+#endif
+
+/*
+ * 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	8	/* report a job control continued process */
+
+#if __BSD_VISIBLE
+/*
+ * Tokens for special values of the "pid" parameter to wait4.
+ */
+#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
+struct rusage;	/* forward declaration */
+
+pid_t	wait(int *);
+pid_t	waitpid(pid_t, int *, int);
+#if __BSD_VISIBLE
+pid_t	wait3(int *, int, struct rusage *);
+pid_t	wait4(pid_t, int *, int, struct rusage *);
+#endif /* __BSD_VISIBLE */
+__END_DECLS
+#endif /* !_KERNEL */
+
+#endif /* !_SYS_WAIT_H_ */
-- 
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