0,0 → 1,149 |
/* |
* Copyright (C) 2006 Vojtech Mencl |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - 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. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. |
*/ |
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/** @addtogroup genericadt |
* @{ |
*/ |
/** @file |
*/ |
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#ifndef KERN_EXTAVLRELTREE_H_ |
#define KERN_EXTAVLRELTREE_H_ |
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#include <arch/types.h> |
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typedef struct extavlreltree_node extavlreltree_node_t; |
typedef struct extavlreltree extavlreltree_t; |
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/* |
* Makro for getting pointer to structure which enclosure extavlreltree structure. |
* |
* @param link Pointer to extavlreltree structure. |
* @param type Name of outer structure. |
* @param member Name of extavlreltree atribute in outer structure. |
*/ |
#define extavlreltree_get_instance(link,type,member) \ |
((type *)(((uint8_t *)(link)) - ((uint8_t *)&(((type *)NULL)->member)))) |
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/** Relative key Extended AVL tree node structure. */ |
struct extavlreltree_node |
{ |
/** |
* Pointer to left descendand of this node. |
* |
* All keys of nodes in the left subtree are less then key of this node. |
*/ |
extavlreltree_node_t *lft; |
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/** |
* Pointer to right descendand of this node. |
* |
* All keys of nodes in the right subtree are greater then key of this node. |
*/ |
extavlreltree_node_t *rgt; |
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/** Pointer to parent node. Root node has NULL parent. */ |
extavlreltree_node_t *par; |
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/** Pointer to next node which has equal or the closest greater key or head. */ |
extavlreltree_node_t *next; |
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/** Pointer to previous node which has equal or the closest lesser key or head. */ |
extavlreltree_node_t *prev; |
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/** Height of left subtree. */ |
int16_t lft_height; |
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/** Height of right subtree. */ |
int16_t rgt_height; |
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/** Nodes key. */ |
uint64_t key; |
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/** Sum of all keys in the right subtree. */ |
uint64_t rgt_sum; |
}; |
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/** Relative key Extended AVL tree structure (ExtAvlrel). */ |
#ifdef AVLTREE_TEST |
struct extavlreltree |
{ |
/* |
* ExtAvlrel root node pointer. |
* |
* Important only for recognition of non tree node. |
*/ |
extavlreltree_node_t *root; |
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/** Head of doubly linked list of nodes. It is entrance point to the tree. */ |
extavlreltree_node_t head; |
}; |
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/** Create empty Extended AVL tree. |
* |
* @param t Extended AVL tree structure. |
*/ |
void extavlreltree_create (extavlreltree_t *t) |
{ |
t->root = NULL; |
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t->head.next = &t->head; |
t->head.prev = &t->head; |
} |
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/** Initialize node. |
* |
* @param node Node which is initialized. |
*/ |
void extavlreltree_node_initialize(extavlreltree_node_t *node) |
{ |
node->lft = NULL; |
node->rgt = NULL; |
node->lft_height = 0; |
node->rgt_height = 0; |
node->par = NULL; |
node->next = node; |
node->prev = node; |
node->rgt_sum = 0; |
} |
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extavlreltree_node_t *extavlreltree_search(extavlreltree_t *t, uint64_t key); |
void extavlreltree_insert(extavlreltree_t *t, extavlreltree_node_t *newnode); |
void extavlreltree_delete(extavlreltree_t *t, extavlreltree_node_t *node); |
bool extavlreltree_delete_min(extavlreltree_t *t); |
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#endif |
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/** @} |
*/ |