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/*
* Copyright (c) 2004 Stefan Walter
* Copyright (c) 2011 Collabora Ltd.
*
* 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.
* * The names of contributors to this software may not be
* used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE
* COPYRIGHT OWNER OR CONTRIBUTORS 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.
*
* Author: Stef Waler <stefw@collabora.co.uk>
*/
#ifndef P11_DICT_H_
#define P11_DICT_H_
#include "compat.h"
/*
* ARGUMENT DOCUMENTATION
*
* dict: The dict
* key: Pointer to the key value
* val: Pointer to the value
* iter: A dict iterator
*/
/* ----------------------------------------------------------------------------------
* TYPES
*/
/* Abstract type for dicts. */
typedef struct _p11_dict p11_dict;
/* Type for scanning hash tables. */
typedef struct _p11_dictiter {
p11_dict *dict;
struct _p11_dictbucket *next;
unsigned int index;
} p11_dictiter;
typedef unsigned int (*p11_dict_hasher) (const void *data);
typedef bool (*p11_dict_equals) (const void *one,
const void *two);
#ifndef P11_DESTROYER_DEFINED
#define P11_DESTROYER_DEFINED
typedef void (*p11_destroyer) (void *data);
#endif
/* -----------------------------------------------------------------------------
* MAIN
*/
/*
* p11_dict_create : Create a hash table
* - returns an allocated hashtable
*/
p11_dict * p11_dict_new (p11_dict_hasher hasher,
p11_dict_equals equals,
p11_destroyer key_destroyer,
p11_destroyer value_destroyer);
/*
* p11_dict_free : Free a hash table
*/
void p11_dict_free (p11_dict *dict);
/*
* p11_dict_size: Number of values in hash table
* - returns the number of entries in hash table
*/
unsigned int p11_dict_size (p11_dict *dict);
/*
* p11_dict_get: Retrieves a value from the hash table
* - returns the value of the entry
*/
void* p11_dict_get (p11_dict *dict,
const void *key);
/*
* p11_dict_set: Set a value in the hash table
* - returns true if the entry was added properly
*/
bool p11_dict_set (p11_dict *dict,
void *key,
void *value);
/*
* p11_dict_remove: Remove a value from the hash table
* - returns true if the entry was found
*/
bool p11_dict_remove (p11_dict *dict,
const void *key);
/*
* p11_dict_steal: Remove a value from the hash table without calling
* destroy funcs
* - returns true if the entry was found
*/
bool p11_dict_steal (p11_dict *dict,
const void *key,
void **stolen_key,
void **stolen_value);
/*
* p11_dict_iterate: Start enumerating through the hash table
* - returns a hash iterator
*/
void p11_dict_iterate (p11_dict *dict,
p11_dictiter *iter);
/*
* p11_dict_next: Enumerate through hash table
* - sets key and value to key and/or value
* - returns whether there was another entry
*/
bool p11_dict_next (p11_dictiter *iter,
void **key,
void **value);
/*
* p11_dict_clear: Clear all values from has htable.
*/
void p11_dict_clear (p11_dict *dict);
/* -----------------------------------------------------------------------------
* KEY FUNCTIONS
*/
unsigned int p11_dict_str_hash (const void *string);
bool p11_dict_str_equal (const void *string_one,
const void *string_two);
unsigned int p11_dict_ulongptr_hash (const void *to_ulong);
bool p11_dict_ulongptr_equal (const void *ulong_one,
const void *ulong_two);
unsigned int p11_dict_intptr_hash (const void *to_int);
bool p11_dict_intptr_equal (const void *int_one,
const void *int_two);
unsigned int p11_dict_direct_hash (const void *ptr);
bool p11_dict_direct_equal (const void *ptr_one,
const void *ptr_two);
#endif /* __P11_DICT_H__ */
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