2 a talloc based red-black tree
4 Copyright (C) Ronnie Sahlberg 2007
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
23 #define TRBT_BLACK 0x01
24 typedef struct _trbt_node_t {
25 struct _trbt_tree_t *tree;
26 struct _trbt_node_t *parent;
27 struct _trbt_node_t *left;
28 struct _trbt_node_t *right;
34 typedef struct _trbt_tree_t {
40 /* Create a RB tree */
41 trbt_tree_t *trbt_create(TALLOC_CTX *memctx);
43 /* Lookup a node in the tree and return a pointer to data or NULL */
44 void *trbt_lookup32(trbt_tree_t *tree, uint32_t key);
46 /* Insert a new node into the tree. If there was already a node with this
47 key the pointer to the previous data is returned.
48 The tree will talloc_steal() the data inserted into the tree .
50 void *trbt_insert32(trbt_tree_t *tree, uint32_t key, void *data);
52 /* Insert a new node into the tree.
53 If this is a new node:
54 callback is called with data==NULL and param=param
55 the returned value from the callback is talloc_stolen and inserted in the
57 If a node already exists for this key then:
58 callback is called with data==existing data and param=param
59 the returned calue is talloc_stolen and inserted in the tree
61 void trbt_insert32_callback(trbt_tree_t *tree, uint32_t key, void *(*callback)(void *param, void *data), void *param);
63 /* Delete a node from the tree and free all data associated with it */
64 void trbt_delete32(trbt_tree_t *tree, uint32_t key);
67 /* insert into the tree with a key based on an array of uint32 */
68 void trbt_insertarray32_callback(trbt_tree_t *tree, uint32_t keylen, uint32_t *key, void *(*callback)(void *param, void *data), void *param);
70 /* Lookup a node in the tree with a key based on an array of uint32
71 and return a pointer to data or NULL */
72 void *trbt_lookuparray32(trbt_tree_t *tree, uint32_t keylen, uint32_t *key);
74 /* Delete a node in the tree with a key based on an array of uint32
75 and return a pointer to data or NULL */
76 void trbt_deletearray32(trbt_tree_t *tree, uint32_t keylen, uint32_t *key);