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// -*- C++ -*-
//=============================================================================
/**
* @file os_limits.h
*
* implementation-defined constants
*
* $Id$
*
* @author Don Hinton <dhinton@dresystems.com>
* @author This code was originally in various places including ace/OS.h.
*/
//=============================================================================
#ifndef ACE_OS_INCLUDE_OS_LIMITS_H
#define ACE_OS_INCLUDE_OS_LIMITS_H
#include "ace/pre.h"
#include "ace/config-all.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/os_include/unistd.h"
#if !defined (ACE_LACKS_LIMITS_H)
# include /**/ <limits.h>
#endif /* !ACE_LACKS_LIMITS_H */
#if !defined (ACE_LACKS_PARAM_H)
# include /**/ <sys/param.h>
#endif /* ACE_LACKS_PARAM_H */
// Place all additions (especially function declarations) within extern "C" {}
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
#if ! defined (howmany)
# define howmany(x, y) (((x)+((y)-1))/(y))
#endif /* howmany */
#if !defined (NAME_MAX)
# if defined (MAXNAMLEN)
# define NAME_MAX MAXNAMLEN
# elif defined (MAXNAMELEN)
# define NAME_MAX MAXNAMELEN
# elif defined (FILENAME_MAX)
# define NAME_MAX FILENAME_MAX
# elif defined (_MAX_FNAME)
# define NAME_MAX _MAX_FNAME
# else /* _MAX_FNAME */
# define NAME_MAX 256
# endif /* MAXNAMLEN */
#endif /* !NAME_MAX */
#if !defined (MAXNAMELEN)
# define MAXNAMELEN NAME_MAX
#endif /* MAXNAMELEN */
#if !defined (HOST_NAME_MAX)
# define HOST_NAME_MAX 256
#endif /* !HOST_NAME_MAX */
// Note that we are using PATH_MAX instead of _POSIX_PATH_MAX, since
// _POSIX_PATH_MAX is the *minimun* maximum value for PATH_MAX and is
// defined by POSIX as 256.
#if !defined (PATH_MAX)
# if defined (_MAX_PATH)
# define PATH_MAX _MAX_PATH
# elif defined (MAX_PATH)
# define PATH_MAX MAX_PATH
# else /* !_MAX_PATH */
# define PATH_MAX 1024
# endif /* _MAX_PATH */
#endif /* !PATH_MAX */
// Leaving this for backward compatibility, but PATH_MAX should always be
// used directly.
#if !defined (MAXPATHLEN)
# define MAXPATHLEN PATH_MAX
#endif /* !MAXPATHLEN */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#include "ace/post.h"
#endif /* ACE_OS_INCLUDE_OS_LIMITS_H */
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