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/* $Id: strhash.h,v 1.9 2000/08/02 02:06:40 ishisone Exp $ */
/*
* Copyright (c) 2000 Japan Network Information Center. All rights reserved.
*
* By using this file, you agree to the terms and conditions set forth bellow.
*
* LICENSE TERMS AND CONDITIONS
*
* The following License Terms and Conditions apply, unless a different
* license is obtained from Japan Network Information Center ("JPNIC"),
* a Japanese association, Fuundo Bldg., 1-2 Kanda Ogawamachi, Chiyoda-ku,
* Tokyo, Japan.
*
* 1. Use, Modification and Redistribution (including distribution of any
* modified or derived work) in source and/or binary forms is permitted
* under this License Terms and Conditions.
*
* 2. Redistribution of source code must retain the copyright notices as they
* appear in each source code file, this License Terms and Conditions.
*
* 3. Redistribution in binary form must reproduce the Copyright Notice,
* this License Terms and Conditions, in the documentation and/or other
* materials provided with the distribution. For the purposes of binary
* distribution the "Copyright Notice" refers to the following language:
* "Copyright (c) Japan Network Information Center. All rights reserved."
*
* 4. Neither the name of JPNIC may be used to endorse or promote products
* derived from this Software without specific prior written approval of
* JPNIC.
*
* 5. Disclaimer/Limitation of Liability: THIS SOFTWARE IS PROVIDED BY JPNIC
* "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 JPNIC 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 DAMAGES.
*
* 6. Indemnification by Licensee
* Any person or entities using and/or redistributing this Software under
* this License Terms and Conditions shall defend indemnify and hold
* harmless JPNIC from and against any and all judgements damages,
* expenses, settlement liabilities, cost and other liabilities of any
* kind as a result of use and redistribution of this Software or any
* claim, suite, action, litigation or proceeding by any third party
* arising out of or relates to this License Terms and Conditions.
*
* 7. Governing Law, Jurisdiction and Venue
* This License Terms and Conditions shall be governed by and and
* construed in accordance with the law of Japan. Any person or entities
* using and/or redistributing this Software under this License Terms and
* Conditions hereby agrees and consent to the personal and exclusive
* jurisdiction and venue of Tokyo District Court of Japan.
*/
#ifndef MDN_STRHASH_H
#define MDN_STRHASH_H 1
/*
* String-keyed hash table
*
* Just a hash table. Nothing special. Number of hash buckets
* grows automatically.
*/
#include <mdn/result.h>
/*
* Hash table type, which is opaque.
*/
typedef struct mdn_strhash *mdn_strhash_t;
/*
* Hash value free proc.
*/
typedef void (*mdn_strhash_freeproc_t)(void *value);
/*
* Create a hash table.
*
* Returns:
* mdn_success -- ok.
* mdn_nomemory -- malloc failed.
*/
extern mdn_result_t
mdn_strhash_create(mdn_strhash_t *hashp);
/*
* Delete a hash table created by 'mdn_strhash_create'.
* If 'proc' is not NULL, it is called for each value in the
* hash to release memory for them.
*/
extern void
mdn_strhash_destroy(mdn_strhash_t hash, mdn_strhash_freeproc_t proc);
/*
* Register an item to the hash table. This function makes a
* private copy of the key string.
*
* Returns:
* mdn_success -- ok.
* mdn_nomemory -- malloc failed.
*/
extern mdn_result_t
mdn_strhash_put(mdn_strhash_t hash, const char *key, void *value);
/*
* Find an item with the specified key.
*
* Returns:
* mdn_success -- ok. found.
* mdn_noentry -- not found.
*/
extern mdn_result_t
mdn_strhash_get(mdn_strhash_t hash, const char *key, void **valuep);
/*
* Check if an item with the specified key exists.
*
* Returns:
* 1 -- yes.
* 0 -- no.
*/
extern int
mdn_strhash_exists(mdn_strhash_t hash, const char *key);
#endif /* MDN_STRHASH_H */
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