/* Define wait system call interface for Emacs.
- Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1995, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of GNU Emacs.
-GNU Emacs is free software; you can redistribute it and/or modify
+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.
+the Free Software Foundation, either version 3 of the License, 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
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, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
/* 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
+#ifndef EMACS_SYSWAIT_H
+#define EMACS_SYSWAIT_H
-#ifdef WAIT_USE_INT
-/* Some systems have union wait in their header, but we should use
- int regardless of that. */
-#include <sys/wait.h>
-#define WAITTYPE int
-#define WRETCODE(w) WEXITSTATUS (w)
-
-#else /* not WAIT_USE_INT */
-
-#if (!defined (BSD_SYSTEM) && !defined (UNIPLUS) && !defined (STRIDE) && !(defined (HPUX) && !defined (NOMULTIPLEJOBS)) && !defined (HAVE_WAIT_HEADER))
-#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
+#include <sys/types.h>
-#else
-
-#ifdef BSD4_1
-#include <wait.h>
-#else
+#ifdef HAVE_SYS_WAIT_H /* We have sys/wait.h with POSIXoid definitions. */
#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
+#endif /* !HAVE_SYS_WAIT_H */
-#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
+#ifndef WCOREDUMP /* not POSIX */
+#define WCOREDUMP(status) ((status) & 0x80)
#endif
-#ifndef WSTOPSIG
-#define WSTOPSIG(w) w.w_stopsig
+#ifndef WEXITSTATUS
+#define WEXITSTATUS(status) (((status) & 0xff00) >> 8)
+#endif
+#ifndef WIFEXITED
+#define WIFEXITED(status) (WTERMSIG(status) == 0)
#endif
#ifndef WIFSTOPPED
-#define WIFSTOPPED(w) (WTERMSIG (w) == 0177)
+#define WIFSTOPPED(status) (((status) & 0xff) == 0x7f)
#endif
#ifndef WIFSIGNALED
-#define WIFSIGNALED(w) (WTERMSIG (w) != 0177 && (WSTOPSIG (w)) == 0)
+#define WIFSIGNALED(status) (!WIFSTOPPED(status) && !WIFEXITED(status))
#endif
-#ifndef WIFEXITED
-#define WIFEXITED(w) (WTERMSIG (w) == 0)
+#ifndef WSTOPSIG
+#define WSTOPSIG(status) WEXITSTATUS(status)
+#endif
+#ifndef WTERMSIG
+#define WTERMSIG(status) ((status) & 0x7f)
#endif
-#endif /* BSD_SYSTEM || UNIPLUS || STRIDE || HPUX */
-#endif /* not WAIT_USE_INT */
-#endif /* no WAITTYPE */
-#else /* VMS */
+#undef WRETCODE
+#define WRETCODE(status) WEXITSTATUS (status)
+
-#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 /* EMACS_SYSWAIT_H */
-#endif /* VMS */
+/* arch-tag: 7e5d9719-ec66-4b6f-89bb-563eea16a899
+ (do not change this comment) */