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// -*- C++ -*-
//=============================================================================
/**
* @file OS_NS_dirent.h
*
* @author Douglas C. Schmidt <d.schmidt@vanderbilt.edu>
* @author Jesper S. M|ller<stophph@diku.dk>
* @author and a cast of thousands...
*/
//=============================================================================
#ifndef ACE_OS_NS_DIRENT_H
# define ACE_OS_NS_DIRENT_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_dirent.h"
#include /**/ "ace/ACE_export.h"
#if defined (ACE_EXPORT_MACRO)
# undef ACE_EXPORT_MACRO
#endif
#define ACE_EXPORT_MACRO ACE_Export
// Define the scandir() selector and comparator function types. Many platforms
// define these in terms of const pointers to dirent arrays/structs. Some
// platforms use void pointers instead. The ACE-exported API is defined in
// terms of the dirent-using function types, and if the OS-native scandir()
// uses void*, that's handled internal to the ACE_OS::scandir() wrapper using
// the ACE_SCANDIR_OS_COMPARATOR.
extern "C" {
#if defined (ACE_SCANDIR_CMP_USES_VOIDPTR)
typedef int (*ACE_SCANDIR_OS_COMPARATOR)(void *f1, void *f2);
#elif defined (ACE_SCANDIR_CMP_USES_CONST_VOIDPTR)
typedef int (*ACE_SCANDIR_OS_COMPARATOR)(const void *f1, const void *f2);
#endif /* ACE_SCANDIR_CMP_USES_VOIDPTR */
typedef int (*ACE_SCANDIR_COMPARATOR)(const ACE_DIRENT **f1, const ACE_DIRENT **f2);
#if defined (ACE_SCANDIR_SEL_LACKS_CONST)
typedef int (*ACE_SCANDIR_OS_SELECTOR)(ACE_DIRENT *filename);
#endif /* ACE_SCANDIR_SEL_LACKS_CONST */
typedef int (*ACE_SCANDIR_SELECTOR)(const ACE_DIRENT *filename);
}
/*
* We inline and undef some functions that may be implemented
* as macros on some platforms. This way macro definitions will
* be usable later as there is no way to save the macro definition
* using the pre-processor.
*/
#if !defined (ACE_LACKS_REWINDDIR)
# if !defined (ACE_HAS_WREWINDDIR) || !defined (ACE_USES_WCHAR)
inline void ace_rewinddir_helper (ACE_DIR *dir)
{
# if defined (rewinddir)
rewinddir (dir);
# undef rewinddir
# else
::rewinddir (dir);
# endif /* defined (rewinddir) */
}
# endif /* !defined (ACE_HAS_WREWINDDIR) && !defined (ACE_USES_WCHAR) */
#endif /* ACE_LACKS_REWINDDIR */
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
namespace ACE_OS {
ACE_NAMESPACE_INLINE_FUNCTION
void closedir (ACE_DIR *);
ACE_NAMESPACE_INLINE_FUNCTION
ACE_DIR *opendir (const ACE_TCHAR *filename);
ACE_NAMESPACE_INLINE_FUNCTION
struct ACE_DIRENT *readdir (ACE_DIR *);
ACE_NAMESPACE_INLINE_FUNCTION
void rewinddir (ACE_DIR *);
ACE_NAMESPACE_INLINE_FUNCTION
int scandir (const ACE_TCHAR *dirname,
struct ACE_DIRENT **namelist[],
ACE_SCANDIR_SELECTOR selector,
ACE_SCANDIR_COMPARATOR comparator);
ACE_NAMESPACE_INLINE_FUNCTION
int alphasort (const void *, const void *);
ACE_NAMESPACE_INLINE_FUNCTION
void seekdir (ACE_DIR *,
long loc);
ACE_NAMESPACE_INLINE_FUNCTION
long telldir (ACE_DIR *);
// Win32 emulation functions
#if defined (ACE_LACKS_OPENDIR)
extern ACE_Export
ACE_DIR *opendir_emulation (const ACE_TCHAR *filename);
#endif /* ACE_LACKS_OPENDIR */
#if !defined (ACE_HAS_SCANDIR)
extern ACE_Export
int scandir_emulation (const ACE_TCHAR *dirname,
ACE_DIRENT **namelist[],
ACE_SCANDIR_SELECTOR selector,
ACE_SCANDIR_COMPARATOR comparator);
#endif /* !ACE_HAS_SCANDIR */
#if defined (ACE_LACKS_CLOSEDIR)
extern ACE_Export
void closedir_emulation (ACE_DIR *);
#endif /* ACE_LACKS_CLOSEDIR */
#if defined (ACE_LACKS_READDIR)
extern ACE_Export
struct ACE_DIRENT *readdir_emulation (ACE_DIR *);
#endif /* ACE_LACKS_READDIR */
} /* 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_dirent.inl"
# endif /* ACE_HAS_INLINED_OSCALLS */
# include /**/ "ace/post.h"
#endif /* ACE_OS_NS_DIRENT_H */
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