mirror of
https://github.com/reactos/reactos.git
synced 2024-10-31 11:56:26 +00:00
94 lines
3.7 KiB
C
94 lines
3.7 KiB
C
/* Simple dictionary
|
|
*
|
|
* Copyright 2005 Juan Lang
|
|
*
|
|
* This is a pretty basic dictionary, or map if you prefer. It's not
|
|
* thread-safe.
|
|
*
|
|
* 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; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* 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 St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
#ifndef __DICTIONARY_H__
|
|
#define __DICTIONARY_H__
|
|
|
|
#include <stdarg.h>
|
|
#include <windef.h>
|
|
#include <winbase.h>
|
|
|
|
struct dictionary;
|
|
|
|
/* Returns whether key a is less than, equal to, or greater than key b, in
|
|
* the same way (a - b) would for integers or strcmp(a, b) would for ANSI
|
|
* strings.
|
|
*/
|
|
typedef int (*comparefunc)(const void *a, const void *b, void *extra);
|
|
|
|
/* Called for every element removed from the dictionary. See
|
|
* dictionary_destroy, dictionary_insert, and dictionary_remove.
|
|
*/
|
|
typedef void (*destroyfunc)(void *k, void *v, void *extra);
|
|
|
|
/* Called for each element in the dictionary. Return FALSE if you don't want
|
|
* to enumerate any more.
|
|
*/
|
|
typedef BOOL (*enumeratefunc)(const void *k, const void *v, void *extra,
|
|
void *closure);
|
|
|
|
/* Constructs a dictionary, using c as a comparison function for keys.
|
|
* If d is not NULL, it will be called whenever an item is about to be removed
|
|
* from the table, for example when dictionary_remove is called for a key, or
|
|
* when dictionary_destroy is called.
|
|
* extra is passed to c (and d, if it's provided).
|
|
* Assumes c is not NULL.
|
|
*/
|
|
struct dictionary *dictionary_create(comparefunc c, destroyfunc d, void *extra) DECLSPEC_HIDDEN;
|
|
|
|
/* Assumes d is not NULL. */
|
|
void dictionary_destroy(struct dictionary *d) DECLSPEC_HIDDEN;
|
|
|
|
/* Returns how many entries have been stored in the dictionary. If two values
|
|
* with the same key are inserted, only one is counted.
|
|
*/
|
|
UINT dictionary_num_entries(struct dictionary *d) DECLSPEC_HIDDEN;
|
|
|
|
/* Sets an element with key k and value v to the dictionary. If a value
|
|
* already exists with key k, its value is replaced, and the destroyfunc (if
|
|
* set) is called for the previous item.
|
|
* Assumes k and v can be bitwise-copied.
|
|
* Both k and v are allowed to be NULL, in case you want to use integer
|
|
* values for either the key or the value.
|
|
* Assumes d is not NULL.
|
|
*/
|
|
void dictionary_insert(struct dictionary *d, const void *k, const void *v) DECLSPEC_HIDDEN;
|
|
|
|
/* If a value with key k has been inserted into the dictionary, *v is set
|
|
* to its associated value. Returns FALSE if the key is not found, and TRUE
|
|
* if it is. *v is undefined if it returns FALSE. (It is not set to NULL,
|
|
* because this dictionary doesn't prevent you from using NULL as a value
|
|
* value; see dictionary_insert.)
|
|
* Assumes d and v are not NULL.
|
|
*/
|
|
BOOL dictionary_find(struct dictionary *d, const void *k, void **v) DECLSPEC_HIDDEN;
|
|
|
|
/* Removes the element with key k from the dictionary. Calls the destroyfunc
|
|
* for the dictionary with the element if found (so you may destroy it if it's
|
|
* dynamically allocated.)
|
|
* Assumes d is not NULL.
|
|
*/
|
|
void dictionary_remove(struct dictionary *d, const void *k) DECLSPEC_HIDDEN;
|
|
|
|
void dictionary_enumerate(struct dictionary *d, enumeratefunc e, void *closure) DECLSPEC_HIDDEN;
|
|
|
|
#endif /* ndef __DICTIONARY_H__ */
|