#ifndef SCM_FILESYS_INTERNAL_H
#define SCM_FILESYS_INTERNAL_H

/* Copyright 1995,1997-2001,2006,2008-2011,2013,2018,2021,2025
     Free Software Foundation, Inc.

   This file is part of Guile.

   Guile is free software: you can redistribute it and/or modify it
   under the terms of the GNU Lesser General Public License as published
   by the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   Guile 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 Lesser General Public
   License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with Guile.  If not, see
   <https://www.gnu.org/licenses/>.  */



#include <dirent.h>

#include <libguile/filesys.h>
#include <libguile/threads-internal.h>



#define SCM_DIR_FLAG_OPEN (1L << 16)

struct scm_directory
{
  scm_t_bits tag_and_flags;
  DIR *ds;
  scm_i_pthread_mutex_t mutex;
};

static inline int
scm_is_directory (SCM x)
{
  return SCM_HAS_TYP16 (x, scm_tc16_directory);
}

static inline struct scm_directory*
scm_to_directory (SCM x)
{
  if (!scm_is_directory (x))
    abort ();
  return (struct scm_directory*) SCM_UNPACK_POINTER (x);
}

static inline SCM
scm_from_directory (struct scm_directory *dir)
{
  return SCM_PACK_POINTER (dir);
}

SCM_INTERNAL SCM scm_copy_file2 (SCM oldfile, SCM newfile, SCM rest);
SCM_INTERNAL SCM scm_i_relativize_path (SCM path, SCM in_path);
SCM_INTERNAL int scm_i_print_directory (SCM exp, SCM port, scm_print_state *pstate);
SCM_INTERNAL void scm_i_finalize_directory (struct scm_thread*, SCM);

SCM_INTERNAL void scm_init_filesys (void);

#endif  /* SCM_FILESYS_INTERNAL_H */