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156 lines
4.7 KiB
C
156 lines
4.7 KiB
C
/* $Header: /src/pub/tcsh/tc.wait.h,v 3.13 2002/05/30 15:22:09 christos Exp $ */
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/*
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* tc.wait.h: <sys/wait.h> for machines that don't have it or have it and
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* is incorrect.
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*/
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/*-
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* Copyright (c) 1980, 1991 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _h_tc_wait
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#define _h_tc_wait
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/*
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* a little complicated #include <sys/wait.h>! :-(
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* We try to use the system's wait.h when we can...
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*/
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#if SYSVREL > 0 && !defined(linux)
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# ifdef hpux
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# ifndef __hpux
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# define NEEDwait
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# else
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# ifndef POSIX
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# define _BSD
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# endif
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# ifndef _CLASSIC_POSIX_TYPES
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# define _CLASSIC_POSIX_TYPES
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# endif
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# include <sys/wait.h> /* 7.0 fixed it again */
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# endif /* __hpux */
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# else /* hpux */
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# if (defined(OREO) || defined(IRIS4D) || defined(POSIX)) && !defined(_VMS_POSIX)
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# include <sys/wait.h>
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# else /* OREO || IRIS4D || POSIX */
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# define NEEDwait
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# endif /* OREO || IRIS4D || POSIX */
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# endif /* hpux */
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#else /* SYSVREL == 0 || linux */
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# ifdef _MINIX
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# undef NEEDwait
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# include "mi.wait.h"
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# else
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# ifndef WINNT_NATIVE
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# include <sys/wait.h>
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# endif /* WINNT_NATIVE */
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# endif /* _MINIX */
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#endif /* SYSVREL == 0 || linux */
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#ifdef NEEDwait
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/*
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* This wait is for big-endians and little endians
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*/
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union wait {
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int w_status;
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# ifdef _SEQUENT_
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struct {
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unsigned short w_Termsig:7;
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unsigned short w_Coredump:1;
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unsigned short w_Retcode:8;
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} w_T;
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struct {
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unsigned short w_Stopval:8;
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unsigned short w_Stopsig:8;
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} w_S;
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};
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# define w_termsig w_T.w_Termsig
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# define w_coredump w_T.w_Coredump
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# define w_retcode w_T.w_Retcode
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# define w_stopval w_S.w_Stopval
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# define w_stopsig w_S.w_Stopsig
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# else /* _SEQUENT_ */
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# if defined(vax) || defined(__vax__) || defined(i386) || defined(_I386) || defined(__i386__)
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union {
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struct {
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unsigned int w_Termsig:7;
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unsigned int w_Coredump:1;
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unsigned int w_Retcode:8;
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unsigned int w_Dummy:16;
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} w_T;
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struct {
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unsigned int w_Stopval:8;
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unsigned int w_Stopsig:8;
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unsigned int w_Dummy:16;
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} w_S;
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} w_P;
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# else /* mc68000 || sparc || ??? */
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# if defined(_CRAY) || defined(ANY_OTHER_64BIT_MACHINE)
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# define DUMMY_BITS 48
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# else /* _CRAY */
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# define DUMMY_BITS 16
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# endif /* _CRAY */
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union {
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struct {
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unsigned int w_Dummy:DUMMY_BITS;
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unsigned int w_Retcode:8;
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unsigned int w_Coredump:1;
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unsigned int w_Termsig:7;
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} w_T;
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struct {
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unsigned int w_Dummy:DUMMY_BITS;
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unsigned int w_Stopsig:8;
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unsigned int w_Stopval:8;
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} w_S;
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} w_P;
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# endif /* vax || __vax__ || i386 || _I386 || __i386__ */
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};
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# define w_termsig w_P.w_T.w_Termsig
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# define w_coredump w_P.w_T.w_Coredump
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# define w_retcode w_P.w_T.w_Retcode
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# define w_stopval w_P.w_S.w_Stopval
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# define w_stopsig w_P.w_S.w_Stopsig
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# endif /* _SEQUENT_ */
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# ifndef WNOHANG
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# define WNOHANG 1 /* dont hang in wait */
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# endif
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# ifndef WUNTRACED
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# define WUNTRACED 2 /* tell about stopped, untraced children */
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# endif
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# define WSTOPPED 0177
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# define WIFSTOPPED(x) ((x).w_stopval == WSTOPPED)
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# define WIFSIGNALED(x) (((x).w_stopval != WSTOPPED) && ((x).w_termsig != 0))
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#endif /* NEEDwait */
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#endif /* _h_tc_wait */
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