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/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.

This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or

modify it under the terms of the GNU Library General Public License as

published by the Free Software Foundation; either version 2 of the

License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

Library General Public License for more details.

You should have received a copy of the GNU Library General Public

License along with the GNU C Library; see the file COPYING.LIB.  If

not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,

Cambridge, MA 02139, USA.  */

/*

 *      POSIX Standard: 5.1.2 Directory Operations      <dirent.h>

 */

#ifndef _DIRSTREAM_H

#define _DIRSTREAM_H    1

#include <dirent.h>

#ifdef _POSIX_THREADS

#include <pthread.h>

#endif

/* For now, syscall readdir () only supports one entry at a time. It

 * will be changed in the future.

#define NUMENT          3

*/

#ifndef NUMENT

#define NUMENT          1

#endif

#define SINGLE_READDIR  11

#define MULTI_READDIR   12

#define NEW_READDIR     13

/* Directory stream type.  */

struct DIR {

  /* file descriptor */

  int dd_fd;

  /* offset of the next dir entry in buffer */

  off_t dd_nextloc;

  /* bytes of valid entries in buffer */

  size_t dd_size;

  /* -> directory buffer */

  struct dirent *dd_buf;

  /* offset of the next dir entry in directory. */

  off_t dd_nextoff;

  /* total size of buffer */

  size_t dd_max;

  enum {unknown, have_getdents, no_getdents} dd_getdents;

  /* lock */

#ifdef _POSIX_THREADS

  pthread_mutex_t *dd_lock;

#else

  void *dd_lock;

#endif

};                              /* stream data from opendir() */

#endif /* dirent.h  */