| 1 | /*
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| 2 | * Copyright (c) 2016 Jiri Svoboda
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup kernel_generic_adt
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | */
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| 34 |
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| 35 | #ifndef _LIBC_TYPES_ODICT_H_
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| 36 | #define _LIBC_TYPES_ODICT_H_
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| 37 |
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| 38 | #include <adt/list.h>
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| 39 |
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| 40 | typedef struct odlink odlink_t;
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| 41 | typedef struct odict odict_t;
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| 42 |
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| 43 | typedef void *(*odgetkey_t)(odlink_t *);
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| 44 | typedef int (*odcmp_t)(void *, void *);
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| 45 |
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| 46 | typedef enum {
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| 47 | odc_black,
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| 48 | odc_red
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| 49 | } odict_color_t;
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| 50 |
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| 51 | typedef enum {
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| 52 | /** Child A */
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| 53 | odcs_a,
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| 54 | /** Child B */
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| 55 | odcs_b
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| 56 | } odict_child_sel_t;
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| 57 |
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| 58 | /** Ordered dictionary link */
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| 59 | struct odlink {
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| 60 | /** Containing dictionary */
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| 61 | odict_t *odict;
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| 62 | /** Parent node */
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| 63 | odlink_t *up;
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| 64 | /** First child */
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| 65 | odlink_t *a;
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| 66 | /** Second child */
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| 67 | odlink_t *b;
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| 68 | /** Node color */
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| 69 | odict_color_t color;
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| 70 | /** Link to odict->entries */
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| 71 | link_t lentries;
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| 72 | };
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| 73 |
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| 74 | /** Ordered dictionary */
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| 75 | struct odict {
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| 76 | /** Root of the tree */
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| 77 | odlink_t *root;
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| 78 | /** List of entries in ascending order */
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| 79 | list_t entries;
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| 80 | /** Get key operation */
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| 81 | odgetkey_t getkey;
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| 82 | /** Compare operation */
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| 83 | odcmp_t cmp;
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| 84 | };
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| 85 |
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| 86 | #endif
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| 87 |
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| 88 | /** @}
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| 89 | */
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