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// -*- C++ -*-
//=============================================================================
/**
* @file OS_NS_fcntl.h
*
* $Id$
*
* @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
* @author Jesper S. M|ller<stophph@diku.dk>
* @author and a cast of thousands...
*
* Originally in OS.h.
*/
//=============================================================================
#ifndef ACE_OS_NS_FCNTL_H
# define ACE_OS_NS_FCNTL_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/os_fcntl.h"
#include "ace/Global_Macros.h" // for LPSECURITY_ATTRIBUTES :-(
#include "ace/ACE_export.h"
#if defined (ACE_EXPORT_MACRO)
# undef ACE_EXPORT_MACRO
#endif
#define ACE_EXPORT_MACRO ACE_Export
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
namespace ACE_OS {
ACE_NAMESPACE_INLINE_FUNCTION
int fcntl (ACE_HANDLE handle,
int cmd,
long arg = 0);
// It used to be that the <perms> argument default was 0 on all
// platforms. Further, the ACE_OS::open implementations ignored <perms>
// for Win32 and always supplied read|write|delete. To preserve
// backward compatibility and allow users to pass in values
// that are used as desired, the defaults are now what the default
// action used to be on Win32. The implementation now obeys what is passed.
#if defined (ACE_WIN32)
# if defined (ACE_HAS_WINNT4) && (ACE_HAS_WINNT4 == 1)
# define ACE_DEFAULT_OPEN_PERMS (FILE_SHARE_READ | FILE_SHARE_WRITE | \
FILE_SHARE_DELETE)
# else
# define ACE_DEFAULT_OPEN_PERMS (FILE_SHARE_READ | FILE_SHARE_WRITE)
# endif /* ACE_HAS_WINCE */
#else
# define ACE_DEFAULT_OPEN_PERMS 0
#endif /* ACE_WIN32 */
/// The O_APPEND flag is only partly supported on Win32. If you specify
/// O_APPEND, then the file pointer will be positioned at the end of
/// the file initially during open, but it is not re-positioned at
/// the end prior to each write, as specified by POSIX. This
/// is generally good enough for typical situations, but it is ``not
/// quite right'' in its semantics.
extern ACE_Export
ACE_HANDLE open (const char *filename,
int mode,
int perms = ACE_DEFAULT_OPEN_PERMS,
LPSECURITY_ATTRIBUTES sa = 0);
extern ACE_Export
ACE_HANDLE open (const wchar_t *filename,
int mode,
int perms = ACE_DEFAULT_OPEN_PERMS,
LPSECURITY_ATTRIBUTES sa = 0);
} /* namespace ACE_OS */
ACE_END_VERSIONED_NAMESPACE_DECL
# if defined (ACE_HAS_INLINED_OSCALLS)
# if defined (ACE_INLINE)
# undef ACE_INLINE
# endif /* ACE_INLINE */
# define ACE_INLINE inline
# include "ace/OS_NS_fcntl.inl"
# endif /* ACE_HAS_INLINED_OSCALLS */
# include /**/ "ace/post.h"
#endif /* ACE_OS_NS_FCNTL_H */
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