82 lines
2.0 KiB
C
82 lines
2.0 KiB
C
/* NAME:
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* wait.h - compensate for what vendors leave out
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*
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* AUTHOR:
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* Simon J. Gerraty <sjg@crufty.net>
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*/
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/*
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* RCSid:
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* $Id: wait.h,v 1.6 2002/11/26 07:53:06 sjg Exp $
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*
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* @(#)Copyright (c) 1994, Simon J. Gerraty.
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*
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* This is free software. It comes with NO WARRANTY.
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* Permission to use, modify and distribute this source code
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* is granted subject to the following conditions.
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* 1/ that the above copyright notice and this notice
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* are preserved in all copies and that due credit be given
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* to the author.
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* 2/ that any changes to this code are clearly commented
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* as such so that the author does not get blamed for bugs
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* other than his own.
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*
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* Please send copies of changes and bug-fixes to:
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* sjg@crufty.net
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*/
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#include <sys/wait.h>
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#ifdef sun386
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# define UNION_WAIT
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# define WEXITSTATUS(x) ((&x)->w_retcode)
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# define WTERMSIG(x) ((&x)->w_termsig)
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# define WSTOPSIG(x) ((&x)->w_stopsig)
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# define HAVE_WAIT4
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#endif
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#ifndef WAIT_T
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# ifdef UNION_WAIT
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# define WAIT_T union wait
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# define WAIT_STATUS(x) (x).w_status
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# else
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# define WAIT_T int
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# define WAIT_STATUS(x) x
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# endif
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#endif
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#ifndef WEXITSTATUS
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# define WEXITSTATUS(_X) (((int)(_X)>>8)&0377)
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#endif
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#ifndef WSTOPPED
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# define WSTOPPED 0177
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#endif
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#ifndef WSTOPSIG
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# define WSTOPSIG(x) WSTOPPED
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#endif
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#ifdef UNION_WAIT
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#ifndef WSET_STOPCODE
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#define WSET_STOPCODE(x, sig) ((&x)->w_stopsig = (sig))
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#endif
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#ifndef WSET_EXITCODE
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#define WSET_EXITCODE(x, ret, sig) ((&x)->w_termsig = (sig), (&x)->w_retcode = (ret))
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#endif
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#else
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#ifndef WSET_STOPCODE
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#define WSET_STOPCODE(x, sig) ((x) = ((sig) << 8) | 0177)
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#endif
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#ifndef WSET_EXITCODE
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#define WSET_EXITCODE(x, ret, sig) ((x) = (ret << 8) | (sig))
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#endif
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#endif
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#ifndef HAVE_WAITPID
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# ifdef HAVE_WAIT4
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# define waitpid(pid, statusp, flags) wait4(pid, statusp, flags, (char *)0)
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# else
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# ifdef HAVE_WAIT3
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# define waitpid(pid, statusp, flags) wait3(statusp, flags, (char *)0)
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# endif
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# endif
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#endif
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