2 * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
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6 * Copyright (c) 2012 Martin Sucha
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7 * Copyright (c) 2012 Frantisek Princ
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8 * All rights reserved.
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10 * Redistribution and use in source and binary forms, with or without
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11 * modification, are permitted provided that the following conditions
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14 * - Redistributions of source code must retain the above copyright
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15 * notice, this list of conditions and the following disclaimer.
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16 * - Redistributions in binary form must reproduce the above copyright
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17 * notice, this list of conditions and the following disclaimer in the
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18 * documentation and/or other materials provided with the distribution.
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19 * - The name of the author may not be used to endorse or promote products
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20 * derived from this software without specific prior written permission.
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22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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34 /** @addtogroup lwext4
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38 * @file ext4_dir_idx.h
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39 * @brief Directory indexing procedures.
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42 #ifndef EXT4_DIR_IDX_H_
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43 #define EXT4_DIR_IDX_H_
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45 #include <ext4_config.h>
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46 #include <ext4_types.h>
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49 #include <stdbool.h>
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51 /**@brief Initialize index structure of new directory.
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52 * @param dir Pointer to directory i-node
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53 * @return Error code
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55 int ext4_dir_dx_init(struct ext4_inode_ref *dir);
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57 /**@brief Try to find directory entry using directory index.
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58 * @param result Output value - if entry will be found,
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59 * than will be passed through this parameter
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60 * @param inode_ref Directory i-node
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61 * @param name_len Length of name to be found
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62 * @param name Name to be found
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63 * @return Error code
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65 int ext4_dir_dx_find_entry(struct ext4_directory_search_result *result,
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66 struct ext4_inode_ref *inode_ref, size_t name_len,
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69 /**@brief Add new entry to indexed directory
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70 * @param parent Directory i-node
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71 * @param child I-node to be referenced from directory entry
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72 * @param name Name of new directory entry
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73 * @return Error code
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75 int ext4_dir_dx_add_entry(struct ext4_inode_ref *parent,
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76 struct ext4_inode_ref *child, const char *name);
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78 #endif /* EXT4_DIR_IDX_H_ */
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