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/*
* $Id: arraylist.h,v 1.4 2006/01/26 02:16:28 mclark Exp $
*
* Copyright (c) 2004, 2005 Metaparadigm Pte. Ltd.
* Michael Clark <michael@metaparadigm.com>
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See COPYING for details.
*
*/
/**
* @file
* @brief Internal methods for working with json_type_array objects.
* Although this is exposed by the json_object_get_array() method,
* it is not recommended for direct use.
*/
#ifndef _json_c_arraylist_h_
#define _json_c_arraylist_h_
#ifdef __cplusplus
extern "C" {
#endif
#include <stddef.h>
#define ARRAY_LIST_DEFAULT_SIZE 32
typedef void(array_list_free_fn)(void *data);
struct array_list
{
void **array;
size_t length;
size_t size;
array_list_free_fn *free_fn;
};
typedef struct array_list array_list;
/**
* Allocate an array_list of the default size (32).
* @deprecated Use array_list_new2() instead.
*/
extern struct array_list *array_list_new(array_list_free_fn *free_fn);
/**
* Allocate an array_list of the desired size.
*
* If possible, the size should be chosen to closely match
* the actual number of elements expected to be used.
* If the exact size is unknown, there are tradeoffs to be made:
* - too small - the array_list code will need to call realloc() more
* often (which might incur an additional memory copy).
* - too large - will waste memory, but that can be mitigated
* by calling array_list_shrink() once the final size is known.
*
* @see array_list_shrink
*/
extern struct array_list *array_list_new2(array_list_free_fn *free_fn, int initial_size);
extern void array_list_free(struct array_list *al);
extern void *array_list_get_idx(struct array_list *al, size_t i);
extern int array_list_put_idx(struct array_list *al, size_t i, void *data);
extern int array_list_add(struct array_list *al, void *data);
extern size_t array_list_length(struct array_list *al);
extern void array_list_sort(struct array_list *arr, int (*compar)(const void *, const void *));
extern void *array_list_bsearch(const void **key, struct array_list *arr,
int (*compar)(const void *, const void *));
extern int array_list_del_idx(struct array_list *arr, size_t idx, size_t count);
/**
* Shrink the array list to just enough to fit the number of elements in it,
* plus empty_slots.
*/
extern int array_list_shrink(struct array_list *arr, size_t empty_slots);
#ifdef __cplusplus
}
#endif
#endif
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