1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
28/*	  All Rights Reserved  	*/
29
30/*
31 * Portions of this source code were derived from Berkeley 4.3 BSD
32 * under license from the Regents of the University of California.
33 */
34
35#ifndef _SYS_WAIT_H
36#define	_SYS_WAIT_H
37
38#pragma ident	"%Z%%M%	%I%	%E% SMI"
39
40#include <sys/isa_defs.h>
41#include <sys/resource.h>
42
43#ifdef __cplusplus
44extern "C" {
45#endif
46
47/*
48 * This wait.h is a combination of SunOS's wait.h and SysV wait.h
49 * The structure 'union wait' is taken from SunOS, while the
50 * rest of the #define's are from SysV.
51 */
52
53/*
54 * Structure of the information in the first word returned by both
55 * wait and wait3.  If w_stopval==WSTOPPED, then the second structure
56 * describes the information returned, else the first.  See WUNTRACED below.
57 */
58union wait	{
59	int	w_status;		/* used in syscall */
60	/*
61	 * Terminated process status.
62	 */
63	struct {
64#if defined(_BIT_FIELDS_LTOH)
65		unsigned short	w_Termsig:7;	/* termination signal */
66		unsigned short	w_Coredump:1;	/* core dump indicator */
67		unsigned short	w_Retcode:8;	/* exit code if w_termsig==0 */
68#else
69		unsigned short	w_Fill1:16;	/* high 16 bits unused */
70		unsigned short	w_Retcode:8;	/* exit code if w_termsig==0 */
71		unsigned short	w_Coredump:1;	/* core dump indicator */
72		unsigned short	w_Termsig:7;	/* termination signal */
73#endif
74	} w_T;
75	/*
76	 * Stopped process status.  Returned
77	 * only for traced children unless requested
78	 * with the WUNTRACED option bit.
79	 */
80	struct {
81#if defined(_BIT_FIELDS_LTOH)
82		unsigned short	w_Stopval:8;	/* == W_STOPPED if stopped */
83		unsigned short	w_Stopsig:8;	/* signal that stopped us */
84#else
85		unsigned short	w_Fill2:16;	/* high 16 bits unused */
86		unsigned short	w_Stopsig:8;	/* signal that stopped us */
87		unsigned short	w_Stopval:8;	/* == W_STOPPED if stopped */
88#endif
89	} w_S;
90};
91#define	w_termsig	w_T.w_Termsig
92#define	w_coredump	w_T.w_Coredump
93#define	w_retcode	w_T.w_Retcode
94#define	w_stopval	w_S.w_Stopval
95#define	w_stopsig	w_S.w_Stopsig
96
97/* ----- begin SysV wait.h ----- */
98
99#include <sys/types.h>
100#ifdef	BUS_OBJERR	/* Namespace conflict */
101#undef	BUS_OBJERR
102#endif
103#include <sys/siginfo.h>
104#include <sys/procset.h>
105
106/*
107 * arguments to wait functions
108 */
109
110#define	WEXITED		0001	/* wait for processes that have exite	*/
111#define	WTRAPPED	0002	/* wait for processes stopped while tracing */
112#define	N_WSTOPPED	0004	/* wait for processes stopped by signals */
113#define	WCONTINUED	0010	/* wait for processes continued */
114
115#define	WUNTRACED	N_WSTOPPED /* for POSIX */
116
117#define	WNOHANG		0100	/* non blocking form of wait	*/
118#define	WNOWAIT		0200	/* non destructive form of wait */
119
120#define	WOPTMASK	(WEXITED|WTRAPPED|WSTOPPED|WCONTINUED|WNOHANG|WNOWAIT)
121
122/*
123 * macros for stat return from wait functions
124 */
125
126#define	WSTOPFLG		0177
127#define	WSTOPPED		WSTOPFLG
128				/* This is for source compatibility w/ SunOS */
129#define	WCONTFLG		0177777
130#define	WCOREFLG		0200
131#define	WSIGMASK		0177
132
133#define	WLOBYTE(stat)		((int)((stat)&0377))
134#define	WHIBYTE(stat)		((int)(((stat)>>8)&0377))
135#define	WWORD(stat)		((int)((stat))&0177777)
136
137#define	WIFEXITED(stat)		(WLOBYTE(stat) == 0)
138#define	WIFSIGNALED(stat)	(WLOBYTE(stat) > 0 && WHIBYTE(stat) == 0)
139#define	WIFSTOPPED(stat)	(WLOBYTE(stat) == WSTOPFLG&&WHIBYTE(stat) != 0)
140#define	WIFCONTINUED(stat)	(WWORD(stat) == WCONTFLG)
141
142#define	WEXITSTATUS(stat)	WHIBYTE(stat)
143#define	WTERMSIG(stat)		(WLOBYTE(stat)&WSIGMASK)
144#define	WSTOPSIG(stat)		WHIBYTE(stat)
145#define	WCOREDUMP(stat)		((stat)&WCOREFLG)
146
147
148
149#if !defined(_KERNEL)
150#if defined(__STDC__)
151
152extern pid_t wait(int *);
153extern pid_t waitpid(pid_t, int *, int);
154extern int waitid(idtype_t, id_t, siginfo_t *, int);
155extern pid_t wait4(pid_t, int *, int, struct rusage *);
156extern pid_t wait3(int *, int, struct rusage *);
157
158#else
159
160extern pid_t wait();
161extern pid_t waitpid();
162extern int waitid();
163
164#endif	/* __STDC__ */
165#endif	/* _KERNEL */
166
167#ifdef __cplusplus
168}
169#endif
170
171#endif	/* _SYS_WAIT_H */
172