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f3bfede52e
(from ebtree 6.0.6) This version is mainly aimed at clarifying the fact that the ebtree license is LGPL. Some files used to indicate LGPL and other ones GPL, while the goal clearly is to have it LGPL. A LICENSE file has also been added. No code is affected, but it's better to have the local tree in sync anyway. (cherry picked from commit 24dc7cca051f081600fe8232f33e55ed30e88425)
78 lines
2.8 KiB
C
78 lines
2.8 KiB
C
/*
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* Elastic Binary Trees - exported functions for Multi-Byte data nodes.
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* Version 6.0.6
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* (C) 2002-2011 - Willy Tarreau <w@1wt.eu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* Consult ebmbtree.h for more details about those functions */
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#include "ebmbtree.h"
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/* Find the first occurence of a key of <len> bytes in the tree <root>.
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* If none can be found, return NULL.
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*/
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REGPRM3 struct ebmb_node *
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ebmb_lookup(struct eb_root *root, const void *x, unsigned int len)
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{
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return __ebmb_lookup(root, x, len);
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}
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/* Insert ebmb_node <new> into subtree starting at node root <root>.
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* Only new->key needs be set with the key. The ebmb_node is returned.
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* If root->b[EB_RGHT]==1, the tree may only contain unique keys. The
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* len is specified in bytes.
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*/
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REGPRM3 struct ebmb_node *
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ebmb_insert(struct eb_root *root, struct ebmb_node *new, unsigned int len)
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{
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return __ebmb_insert(root, new, len);
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}
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/* Find the first occurence of the longest prefix matching a key <x> in the
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* tree <root>. It's the caller's responsibility to ensure that key <x> is at
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* least as long as the keys in the tree. If none can be found, return NULL.
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*/
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REGPRM2 struct ebmb_node *
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ebmb_lookup_longest(struct eb_root *root, const void *x)
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{
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return __ebmb_lookup_longest(root, x);
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}
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/* Find the first occurence of a prefix matching a key <x> of <pfx> BITS in the
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* tree <root>. If none can be found, return NULL.
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*/
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REGPRM3 struct ebmb_node *
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ebmb_lookup_prefix(struct eb_root *root, const void *x, unsigned int pfx)
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{
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return __ebmb_lookup_prefix(root, x, pfx);
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}
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/* Insert ebmb_node <new> into a prefix subtree starting at node root <root>.
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* Only new->key and new->pfx need be set with the key and its prefix length.
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* Note that bits between <pfx> and <len> are theorically ignored and should be
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* zero, as it is not certain yet that they will always be ignored everywhere
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* (eg in bit compare functions).
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* The ebmb_node is returned.
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* If root->b[EB_RGHT]==1, the tree may only contain unique keys. The
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* len is specified in bytes.
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*/
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REGPRM3 struct ebmb_node *
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ebmb_insert_prefix(struct eb_root *root, struct ebmb_node *new, unsigned int len)
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{
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return __ebmb_insert_prefix(root, new, len);
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}
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