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/* $Header: /p/tcsh/cvsroot/tcsh/tc.wait.h,v 3.15 2011/02/04 18:00:26 christos Exp $ */
/*
* tc.wait.h: <sys/wait.h> for machines that don't have it or have it and
* is incorrect.
*/
/*-
* Copyright (c) 1980, 1991 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.
*/
#ifndef _h_tc_wait
#define _h_tc_wait
/*
* a little complicated #include <sys/wait.h>! :-(
* We try to use the system's wait.h when we can...
*/
#if SYSVREL > 0 && !defined(__linux__) && !defined(__GNU__) && !defined(__GLIBC__)
# ifdef hpux
# ifndef __hpux
# define NEEDwait
# else
# ifndef POSIX
# define _BSD
# endif
# ifndef _CLASSIC_POSIX_TYPES
# define _CLASSIC_POSIX_TYPES
# endif
# include <sys/wait.h> /* 7.0 fixed it again */
# endif /* __hpux */
# else /* hpux */
# if (defined(OREO) || defined(IRIS4D) || defined(POSIX)) && !defined(_VMS_POSIX)
# include <sys/wait.h>
# else /* OREO || IRIS4D || POSIX */
# define NEEDwait
# endif /* OREO || IRIS4D || POSIX */
# endif /* hpux */
#else /* SYSVREL == 0 || glibc */
# ifdef _MINIX
# undef NEEDwait
# include "mi.wait.h"
# else
# ifndef WINNT_NATIVE
# include <sys/wait.h>
# endif /* WINNT_NATIVE */
# endif /* _MINIX */
#endif /* SYSVREL == 0 || glibc */
#ifdef NEEDwait
/*
* This wait is for big-endians and little endians
*/
union wait {
int w_status;
# ifdef _SEQUENT_
struct {
unsigned short w_Termsig:7;
unsigned short w_Coredump:1;
unsigned short w_Retcode:8;
} w_T;
struct {
unsigned short w_Stopval:8;
unsigned short w_Stopsig:8;
} 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
# else /* _SEQUENT_ */
# if defined(vax) || defined(__vax__) || defined(i386) || defined(_I386) || defined(__i386__)
union {
struct {
unsigned int w_Termsig:7;
unsigned int w_Coredump:1;
unsigned int w_Retcode:8;
unsigned int w_Dummy:16;
} w_T;
struct {
unsigned int w_Stopval:8;
unsigned int w_Stopsig:8;
unsigned int w_Dummy:16;
} w_S;
} w_P;
# else /* mc68000 || sparc || ??? */
# if defined(_CRAY) || defined(ANY_OTHER_64BIT_MACHINE)
# define DUMMY_BITS 48
# else /* _CRAY */
# define DUMMY_BITS 16
# endif /* _CRAY */
union {
struct {
unsigned int w_Dummy:DUMMY_BITS;
unsigned int w_Retcode:8;
unsigned int w_Coredump:1;
unsigned int w_Termsig:7;
} w_T;
struct {
unsigned int w_Dummy:DUMMY_BITS;
unsigned int w_Stopsig:8;
unsigned int w_Stopval:8;
} w_S;
} w_P;
# endif /* vax || __vax__ || i386 || _I386 || __i386__ */
};
# define w_termsig w_P.w_T.w_Termsig
# define w_coredump w_P.w_T.w_Coredump
# define w_retcode w_P.w_T.w_Retcode
# define w_stopval w_P.w_S.w_Stopval
# define w_stopsig w_P.w_S.w_Stopsig
# endif /* _SEQUENT_ */
# ifndef WNOHANG
# define WNOHANG 1 /* dont hang in wait */
# endif
# ifndef WUNTRACED
# define WUNTRACED 2 /* tell about stopped, untraced children */
# endif
# define WSTOPPED 0177
# define WIFSTOPPED(x) ((x).w_stopval == WSTOPPED)
# define WIFSIGNALED(x) (((x).w_stopval != WSTOPPED) && ((x).w_termsig != 0))
#endif /* NEEDwait */
#endif /* _h_tc_wait */
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