コード例 #1
0
ファイル: rtems-rfs-rtems-dir.c プロジェクト: epicsdeb/rtems
static int
rtems_rfs_rtems_dir_rmnod (rtems_filesystem_location_info_t* parent_pathloc,
                           rtems_filesystem_location_info_t* pathloc)
{
  rtems_rfs_file_system* fs = rtems_rfs_rtems_pathloc_dev (pathloc);
  rtems_rfs_ino          parent = rtems_rfs_rtems_get_pathloc_ino (parent_pathloc);
  rtems_rfs_ino          ino = rtems_rfs_rtems_get_pathloc_ino (pathloc);
  uint32_t               doff = rtems_rfs_rtems_get_pathloc_doff (pathloc);
  int                    rc;

  if (rtems_rfs_rtems_trace (RTEMS_RFS_RTEMS_DEBUG_DIR_RMNOD))
    printf ("rtems-rfs: dir-rmnod: parent:%" PRId32 " doff:%" PRIu32 ", ino:%" PRId32 "\n",
            parent, doff, ino);

  if (ino == RTEMS_RFS_ROOT_INO)
    return rtems_rfs_rtems_error ("dir_rmnod: root inode", EBUSY);

  rtems_rfs_rtems_lock (fs);
  
  rc = rtems_rfs_unlink (fs, parent, ino, doff, rtems_rfs_unlink_dir_if_empty);
  if (rc)
  {
    rtems_rfs_rtems_unlock (fs);
    return rtems_rfs_rtems_error ("dir_rmnod: unlinking", rc);
  }

  rtems_rfs_rtems_unlock (fs);
  return 0;
}
コード例 #2
0
ファイル: rtems-rfs-rtems.c プロジェクト: liujinsuiyue/rtems
/**
 * Rename the node.
 */
static int
rtems_rfs_rtems_rename(const rtems_filesystem_location_info_t* old_parent_loc,
                       const rtems_filesystem_location_info_t* old_loc,
                       const rtems_filesystem_location_info_t* new_parent_loc,
                       const char*                             new_name,
                       size_t                                  new_name_len)
{
  rtems_rfs_file_system*  fs = rtems_rfs_rtems_pathloc_dev (old_loc);
  rtems_rfs_ino           old_parent;
  rtems_rfs_ino           new_parent;
  rtems_rfs_ino           ino;
  uint32_t                doff;
  int                     rc;

  old_parent = rtems_rfs_rtems_get_pathloc_ino (old_parent_loc);
  new_parent = rtems_rfs_rtems_get_pathloc_ino (new_parent_loc);

  ino  = rtems_rfs_rtems_get_pathloc_ino (old_loc);
  doff = rtems_rfs_rtems_get_pathloc_doff (old_loc);

  if (rtems_rfs_rtems_trace (RTEMS_RFS_RTEMS_DEBUG_RENAME))
    printf ("rtems-rfs: rename: ino:%" PRId32 " doff:%" PRIu32 ", new parent:%" PRId32 "\n",
            ino, doff, new_parent);

  /*
   * Link to the inode before unlinking so the inode is not erased when
   * unlinked.
   */
  rc = rtems_rfs_link (fs, new_name, new_name_len, new_parent, ino, true);
  if (rc)
  {
    return rtems_rfs_rtems_error ("rename: linking", rc);
  }

  /*
   * Unlink all inodes even directories with the dir option as false because a
   * directory may not be empty.
   */
  rc = rtems_rfs_unlink (fs, old_parent, ino, doff,
                         rtems_rfs_unlink_dir_allowed);
  if (rc)
  {
    return rtems_rfs_rtems_error ("rename: unlinking", rc);
  }

  return 0;
}
コード例 #3
0
ファイル: rtems-rfs-rtems.c プロジェクト: liujinsuiyue/rtems
/**
 * Routine to remove a node from the RFS file system.
 *
 * @param parent_pathloc
 * @param pathloc
 * @return int
 */
int
rtems_rfs_rtems_rmnod (const rtems_filesystem_location_info_t* parent_pathloc,
                       const rtems_filesystem_location_info_t* pathloc)
{
  rtems_rfs_file_system* fs = rtems_rfs_rtems_pathloc_dev (pathloc);
  rtems_rfs_ino          parent = rtems_rfs_rtems_get_pathloc_ino (parent_pathloc);
  rtems_rfs_ino          ino = rtems_rfs_rtems_get_pathloc_ino (pathloc);
  uint32_t               doff = rtems_rfs_rtems_get_pathloc_doff (pathloc);
  int                    rc;

  if (rtems_rfs_rtems_trace (RTEMS_RFS_RTEMS_DEBUG_RMNOD))
    printf ("rtems-rfs: rmnod: parent:%" PRId32 " doff:%" PRIu32 ", ino:%" PRId32 "\n",
            parent, doff, ino);

  rc = rtems_rfs_unlink (fs, parent, ino, doff, rtems_rfs_unlink_dir_if_empty);
  if (rc)
  {
    return rtems_rfs_rtems_error ("rmnod: unlinking", rc);
  }

  return 0;
}