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/*

 *  IMFS Initialization

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  The license and distribution terms for this file may be

 *  found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 *  imfs_initsupp.c,v 1.12 2001/05/25 13:47:47 joel Exp

 */

#if HAVE_CONFIG_H

#include "config.h"

#endif

#include <sys/types.h>         /* for mkdir */

#include <fcntl.h>

#include <unistd.h>

#include <stdlib.h>

#include <assert.h>

#include "imfs.h"

#include <rtems/libio_.h>

#if defined(IMFS_DEBUG)

#include <stdio.h>

#endif

/*

 *  IMFS_initialize

 */

int IMFS_initialize_support(

  rtems_filesystem_mount_table_entry_t *temp_mt_entry,

   rtems_filesystem_operations_table    *op_table,

   rtems_filesystem_file_handlers_r     *linearfile_handlers,

   rtems_filesystem_file_handlers_r     *memfile_handlers,

   rtems_filesystem_file_handlers_r     *directory_handlers

)

{

  IMFS_fs_info_t                        *fs_info;

  IMFS_jnode_t                          *jnode;

  /*

   *  Create the root node

   *

   *  NOTE: UNIX root is 755 and owned by root/root (0/0).

   */

  temp_mt_entry->mt_fs_root.node_access = IMFS_create_node(

    NULL,

    IMFS_DIRECTORY,

    "",

    ( S_IFDIR | 0755 ),

    NULL

  );

  temp_mt_entry->mt_fs_root.handlers         = directory_handlers;

  temp_mt_entry->mt_fs_root.ops              = op_table;

  temp_mt_entry->pathconf_limits_and_options = IMFS_LIMITS_AND_OPTIONS;

  /*

   * Create custom file system data.

   */

  fs_info = calloc( 1, sizeof( IMFS_fs_info_t ) );

  if ( !fs_info ){

    free(temp_mt_entry->mt_fs_root.node_access);

    return 1;

  }

  temp_mt_entry->fs_info = fs_info;

  /*

   * Set st_ino for the root to 1.

   */

  fs_info->ino_count             = 1;

  fs_info->linearfile_handlers   = linearfile_handlers;

  fs_info->memfile_handlers      = memfile_handlers;

  fs_info->directory_handlers    = directory_handlers;

  jnode = temp_mt_entry->mt_fs_root.node_access;

  jnode->st_ino = fs_info->ino_count;

  return 0;

}