/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
/*        All Rights Reserved   */

/*
 * Portions of this source code were derived from Berkeley 4.3 BSD
 * under license from the Regents of the University of California.
 */

#ifndef _SYS_WAIT_H
#define _SYS_WAIT_H

#include <sys/isa_defs.h>
#include <sys/resource.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 * This wait.h is a combination of SunOS's wait.h and SysV wait.h
 * The structure 'union wait' is taken from SunOS, while the
 * rest of the #define's are from SysV.
 */

/*
 * Structure of the information in the first word returned by both
 * wait and wait3.  If w_stopval==WSTOPPED, then the second structure
 * describes the information returned, else the first.  See WUNTRACED below.
 */
union wait      {
        int     w_status;               /* used in syscall */
        /*
         * Terminated process status.
         */
        struct {
#if defined(_BIT_FIELDS_LTOH)
                unsigned short  w_Termsig:7;    /* termination signal */
                unsigned short  w_Coredump:1;   /* core dump indicator */
                unsigned short  w_Retcode:8;    /* exit code if w_termsig==0 */
#else
                unsigned short  w_Fill1:16;     /* high 16 bits unused */
                unsigned short  w_Retcode:8;    /* exit code if w_termsig==0 */
                unsigned short  w_Coredump:1;   /* core dump indicator */
                unsigned short  w_Termsig:7;    /* termination signal */
#endif
        } w_T;
        /*
         * Stopped process status.  Returned
         * only for traced children unless requested
         * with the WUNTRACED option bit.
         */
        struct {
#if defined(_BIT_FIELDS_LTOH)
                unsigned short  w_Stopval:8;    /* == W_STOPPED if stopped */
                unsigned short  w_Stopsig:8;    /* signal that stopped us */
#else
                unsigned short  w_Fill2:16;     /* high 16 bits unused */
                unsigned short  w_Stopsig:8;    /* signal that stopped us */
                unsigned short  w_Stopval:8;    /* == W_STOPPED if stopped */
#endif
        } w_S;
};
#define w_termsig       w_T.w_Termsig
#define w_coredump      w_T.w_Coredump
#define w_retcode       w_T.w_Retcode
#define w_stopval       w_S.w_Stopval
#define w_stopsig       w_S.w_Stopsig

/* ----- begin SysV wait.h ----- */

#include <sys/types.h>
#ifdef  BUS_OBJERR      /* Namespace conflict */
#undef  BUS_OBJERR
#endif
#include <sys/siginfo.h>
#include <sys/procset.h>

/*
 * arguments to wait functions
 */

#define WEXITED         0001    /* wait for processes that have exite   */
#define WTRAPPED        0002    /* wait for processes stopped while tracing */
#define N_WSTOPPED      0004    /* wait for processes stopped by signals */
#define WCONTINUED      0010    /* wait for processes continued */

#define WUNTRACED       N_WSTOPPED /* for POSIX */

#define WNOHANG         0100    /* non blocking form of wait    */
#define WNOWAIT         0200    /* non destructive form of wait */

#define WOPTMASK        (WEXITED|WTRAPPED|WSTOPPED|WCONTINUED|WNOHANG|WNOWAIT)

/*
 * macros for stat return from wait functions
 */

#define WSTOPFLG                0177
#define WSTOPPED                WSTOPFLG
                                /* This is for source compatibility w/ SunOS */
#define WCONTFLG                0177777
#define WCOREFLG                0200
#define WSIGMASK                0177

#define WLOBYTE(stat)           ((int)((stat)&0377))
#define WHIBYTE(stat)           ((int)(((stat)>>8)&0377))
#define WWORD(stat)             ((int)((stat))&0177777)

#define WIFEXITED(stat)         (WLOBYTE(stat) == 0)
#define WIFSIGNALED(stat)       (WLOBYTE(stat) > 0 && WHIBYTE(stat) == 0)
#define WIFSTOPPED(stat)        (WLOBYTE(stat) == WSTOPFLG&&WHIBYTE(stat) != 0)
#define WIFCONTINUED(stat)      (WWORD(stat) == WCONTFLG)

#define WEXITSTATUS(stat)       WHIBYTE(stat)
#define WTERMSIG(stat)          (WLOBYTE(stat)&WSIGMASK)
#define WSTOPSIG(stat)          WHIBYTE(stat)
#define WCOREDUMP(stat)         ((stat)&WCOREFLG)



#if !defined(_KERNEL)
#if defined(__STDC__)

extern pid_t wait(int *);
extern pid_t waitpid(pid_t, int *, int);
extern int waitid(idtype_t, id_t, siginfo_t *, int);
extern pid_t wait4(pid_t, int *, int, struct rusage *);
extern pid_t wait3(int *, int, struct rusage *);

#else

extern pid_t wait();
extern pid_t waitpid();
extern int waitid();

#endif  /* __STDC__ */
#endif  /* _KERNEL */

#ifdef __cplusplus
}
#endif

#endif  /* _SYS_WAIT_H */