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/* Define wait system call interface for Emacs.
Copyright (C) 1993, 1994, 1995, 2000, 2001, 2002, 2003, 2004,
2005, 2006, 2007, 2008, 2009, 2010 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 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
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. 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 EMACS_SYSWAIT_H
#define EMACS_SYSWAIT_H
#include <sys/types.h>
#ifdef HAVE_SYS_WAIT_H /* We have sys/wait.h with POSIXoid definitions. */
#include <sys/wait.h>
#endif /* !HAVE_SYS_WAIT_H */
#ifndef WCOREDUMP /* not POSIX */
#define WCOREDUMP(status) ((status) & 0x80)
#endif
#ifndef WEXITSTATUS
#define WEXITSTATUS(status) (((status) & 0xff00) >> 8)
#endif
#ifndef WIFEXITED
#define WIFEXITED(status) (WTERMSIG(status) == 0)
#endif
#ifndef WIFSTOPPED
#define WIFSTOPPED(status) (((status) & 0xff) == 0x7f)
#endif
#ifndef WIFSIGNALED
#define WIFSIGNALED(status) (!WIFSTOPPED(status) && !WIFEXITED(status))
#endif
#ifndef WSTOPSIG
#define WSTOPSIG(status) WEXITSTATUS(status)
#endif
#ifndef WTERMSIG
#define WTERMSIG(status) ((status) & 0x7f)
#endif
#undef WRETCODE
#define WRETCODE(status) WEXITSTATUS (status)
#endif /* EMACS_SYSWAIT_H */
/* arch-tag: 7e5d9719-ec66-4b6f-89bb-563eea16a899
(do not change this comment) */
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