openldap/include/ac/wait.h

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/* Generic wait.h */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
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* Copyright 1998-2007 The OpenLDAP Foundation.
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* All rights reserved.
*
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* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
*
* A copy of this license is available in file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
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*/
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#ifndef _AC_WAIT_H
#define _AC_WAIT_H
#include <sys/types.h>
#ifdef HAVE_SYS_WAIT_H
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# include <sys/wait.h>
#endif
#define LDAP_HI(s) (((s) >> 8) & 0377)
#define LDAP_LO(s) ((s) & 0377)
/* These should work on non-POSIX UNIX platforms,
all bets on off on non-POSIX non-UNIX platforms... */
#ifndef WIFEXITED
# define WIFEXITED(s) (LDAP_LO(s) == 0)
#endif
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#ifndef WEXITSTATUS
# define WEXITSTATUS(s) LDAP_HI(s)
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#endif
#ifndef WIFSIGNALED
# define WIFSIGNALED(s) (LDAP_LO(s) > 0 && LDAP_HI(s) == 0)
#endif
#ifndef WTERMSIG
# define WTERMSIG(s) (LDAP_LO(s) & 0177)
#endif
#ifndef WIFSTOPPED
# define WIFSTOPPED(s) (LDAP_LO(s) == 0177 && LDAP_HI(s) != 0)
#endif
#ifndef WSTOPSIG
# define WSTOPSIG(s) LDAP_HI(s)
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#endif
#ifdef WCONTINUED
# define WAIT_FLAGS ( WNOHANG | WUNTRACED | WCONTINUED )
#else
# define WAIT_FLAGS ( WNOHANG | WUNTRACED )
#endif
#endif /* _AC_WAIT_H */