fs.h

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/* SPDX-License-Identifier: BSD-2-Clause */

 
/*
 *  COPYRIGHT (c) 1989-2011.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  Modifications to support reference counting in the file system are
 *  Copyright (c) 2012 embedded brains GmbH & Co. KG
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef _RTEMS_FS_H
#define _RTEMS_FS_H
 
#include <rtems/chain.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*
 *  File descriptor Table Information
 */
 
/* Forward declarations */
 
/* FIXME: shouldn't this better not be here? */
typedef struct rtems_libio_tt rtems_libio_t;
 
struct rtems_filesystem_mount_table_entry_tt;
typedef struct rtems_filesystem_mount_table_entry_tt
    rtems_filesystem_mount_table_entry_t;
 
typedef struct _rtems_filesystem_file_handlers_r
    rtems_filesystem_file_handlers_r;
typedef struct _rtems_filesystem_operations_table
    rtems_filesystem_operations_table;

typedef struct rtems_filesystem_location_info_tt {
   rtems_chain_node                         mt_entry_node;
   void                                    *node_access;
   void                                    *node_access_2;
   const rtems_filesystem_file_handlers_r  *handlers;
   rtems_filesystem_mount_table_entry_t    *mt_entry;
} rtems_filesystem_location_info_t;

typedef struct rtems_filesystem_global_location_t {
  rtems_filesystem_location_info_t location;
  int reference_count;

  struct rtems_filesystem_global_location_t *deferred_released_next;

  int deferred_released_count;
} rtems_filesystem_global_location_t;
 
/*
 * Return the mount table entry for a path location.
 */
#define rtems_filesystem_location_mount(_pl) ((_pl)->mt_entry)
 
#ifdef __cplusplus
}
#endif
 
#endif
/* end of include file */