haproxy/ebtree/ebistree.c

/*
 * Elastic Binary Trees - exported functions for Indirect String data nodes.
 * Version 6.0.6
 * (C) 2002-2011 - Willy Tarreau <w@1wt.eu>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation, version 2.1
 * exclusively.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

/* Consult ebistree.h for more details about those functions */

#include "ebistree.h"

/* Find the first occurrence of a zero-terminated string <x> in the tree <root>.
 * It's the caller's responsibility to use this function only on trees which
 * only contain zero-terminated strings. If none can be found, return NULL.
 */
struct ebpt_node *ebis_lookup(struct eb_root *root, const char *x)
{
	return __ebis_lookup(root, x);
}

/* Insert ebpt_node <new> into subtree starting at node root <root>. Only
 * new->key needs be set with the zero-terminated string key. The ebpt_node is
 * returned. If root->b[EB_RGHT]==1, the tree may only contain unique keys. The
 * caller is responsible for properly terminating the key with a zero.
 */
struct ebpt_node *ebis_insert(struct eb_root *root, struct ebpt_node *new)
{
	return __ebis_insert(root, new);
}