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