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/* Copyright (c) 2013, Vsevolod Stakhov
* 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.
*
* THIS SOFTWARE IS PROVIDED ''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 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.
*/
#ifndef __UCL_HASH_H
#define __UCL_HASH_H
#include "ucl.h"
/******************************************************************************/
struct ucl_hash_node_s;
typedef struct ucl_hash_node_s ucl_hash_node_t;
typedef int (*ucl_hash_cmp_func) (const void* void_a, const void* void_b);
typedef void (*ucl_hash_free_func) (void *ptr);
typedef void* ucl_hash_iter_t;
/**
* Linear chained hashtable.
*/
struct ucl_hash_struct;
typedef struct ucl_hash_struct ucl_hash_t;
/**
* Initializes the hashtable.
*/
ucl_hash_t* ucl_hash_create (bool ignore_case);
/**
* Deinitializes the hashtable.
*/
void ucl_hash_destroy (ucl_hash_t* hashlin, ucl_hash_free_func func);
/**
* Inserts an element in the the hashtable.
*/
void ucl_hash_insert (ucl_hash_t* hashlin, const ucl_object_t *obj, const char *key,
unsigned keylen);
/**
* Replace element in the hash
*/
void ucl_hash_replace (ucl_hash_t* hashlin, const ucl_object_t *old,
const ucl_object_t *new);
/**
* Delete an element from the the hashtable.
*/
void ucl_hash_delete (ucl_hash_t* hashlin, const ucl_object_t *obj);
/**
* Searches an element in the hashtable.
*/
const ucl_object_t* ucl_hash_search (ucl_hash_t* hashlin, const char *key,
unsigned keylen);
/**
* Iterate over hash table
* @param hashlin hash
* @param iter iterator (must be NULL on first iteration)
* @return the next object
*/
const void* ucl_hash_iterate (ucl_hash_t *hashlin, ucl_hash_iter_t *iter);
/**
* Check whether an iterator has next element
*/
bool ucl_hash_iter_has_next (ucl_hash_t *hashlin, ucl_hash_iter_t iter);
#endif
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