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/* Define wait system call interface for Emacs. Copyright (C) 1993, 1994 Free Software Foundation, Inc. This file is part of GNU Emacs. GNU Emacs is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Emacs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Emacs; see the file COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Define the structure that the wait system call stores. On many systems, there is a structure defined for this. But on vanilla-ish USG systems there is not. */ #ifndef VMS #ifndef WAITTYPE #if (!defined (BSD) && !defined (UNIPLUS) && !defined (STRIDE) && !(defined (HPUX) && !defined (NOMULTIPLEJOBS)) && !defined (HAVE_WAIT_HEADER)) || defined (LINUX) #define WAITTYPE int #define WIFSTOPPED(w) ((w&0377) == 0177) #define WIFSIGNALED(w) ((w&0377) != 0177 && (w&~0377) == 0) #define WIFEXITED(w) ((w&0377) == 0) #define WRETCODE(w) (w >> 8) #define WSTOPSIG(w) (w >> 8) #define WTERMSIG(w) (w & 0377) #ifndef WCOREDUMP #define WCOREDUMP(w) ((w&0200) != 0) #endif #else #ifdef BSD4_1 #include <wait.h> #else #include <sys/wait.h> #endif /* not BSD 4.1 */ #define WAITTYPE union wait #define WRETCODE(w) w.w_retcode #undef WCOREDUMP /* Later BSDs define this name differently. */ #define WCOREDUMP(w) w.w_coredump #if defined (HPUX) || defined (convex) /* HPUX version 7 has broken definitions of these. */ /* pvogel@convex.com says the convex does too. */ #undef WTERMSIG #undef WSTOPSIG #undef WIFSTOPPED #undef WIFSIGNALED #undef WIFEXITED #endif /* HPUX | convex */ #ifndef WTERMSIG #define WTERMSIG(w) w.w_termsig #endif #ifndef WSTOPSIG #define WSTOPSIG(w) w.w_stopsig #endif #ifndef WIFSTOPPED #define WIFSTOPPED(w) (WTERMSIG (w) == 0177) #endif #ifndef WIFSIGNALED #define WIFSIGNALED(w) (WTERMSIG (w) != 0177 && (WSTOPSIG (w)) == 0) #endif #ifndef WIFEXITED #define WIFEXITED(w) (WTERMSIG (w) == 0) #endif #endif /* BSD or UNIPLUS or STRIDE */ #endif /* no WAITTYPE */ #else /* VMS */ #define WAITTYPE int #define WIFSTOPPED(w) 0 #define WIFSIGNALED(w) 0 #define WIFEXITED(w) ((w) != -1) #define WRETCODE(w) (w) #define WSTOPSIG(w) (w) #define WCOREDUMP(w) 0 #define WTERMSIG(w) (w) #include <ssdef.h> #include <iodef.h> #include <clidef.h> #include "vmsproc.h" #endif /* VMS */
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