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/*
* $Id: forkwait.h 761 2007-10-23 22:35:18Z hubert@u.washington.edu $
*
* ========================================================================
* Copyright 2013-2018 Eduardo Chappa
* Copyright 2006 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* ========================================================================
*/
#ifndef PITH_OSDEP_FORKWAIT_INCLUDED
#define PITH_OSDEP_FORKWAIT_INCLUDED
#if HAVE_UNION_WAIT
#define WAITSTATUS_T union wait
#else
#define WAITSTATUS_T int
#endif
#ifndef WEXITSTATUS
#define WEXITSTATUS(X) (((X) >> 8) & 0xff) /* high bits tell exit value */
#endif
#ifndef WIFEXITED
#define WIFEXITED(X) (!((X) & 0xff)) /* low bits tell how it died */
#endif
#if !HAVE_WORKING_VFORK
#define vfork fork
#endif
#endif /* PITH_OSDEP_FORKWAIT_INCLUDED */
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