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/*
* Copyright (C) Igor Sysoev
* Copyright (C) NGINX, Inc.
*/
#ifndef _NJS_ARR_H_INCLUDED_
#define _NJS_ARR_H_INCLUDED_
typedef struct {
void *start;
/*
* A array can hold no more than 65536 items.
* The item size is no more than 64K.
*/
uint16_t items;
uint16_t avalaible;
uint16_t item_size;
uint8_t pointer;
uint8_t separate;
njs_mp_t *mem_pool;
} njs_arr_t;
NJS_EXPORT njs_arr_t *njs_arr_create(njs_mp_t *mp, njs_uint_t n,
size_t size);
NJS_EXPORT void *njs_arr_init(njs_mp_t *mp, njs_arr_t *arr, void *start,
njs_uint_t n, size_t size);
NJS_EXPORT void njs_arr_destroy(njs_arr_t *arr);
NJS_EXPORT void *njs_arr_add(njs_arr_t *arr);
NJS_EXPORT void *njs_arr_add_multiple(njs_arr_t *arr, njs_uint_t n);
NJS_EXPORT void *njs_arr_zero_add(njs_arr_t *arr);
NJS_EXPORT void njs_arr_remove(njs_arr_t *arr, void *item);
#define njs_arr_item(arr, i) \
((void *) ((char *) (arr)->start + (arr)->item_size * (i)))
#define njs_arr_last(arr) \
((void *) \
((char *) (arr)->start \
+ (arr)->item_size * ((arr)->items - 1)))
#define njs_arr_reset(arr) \
(arr)->items = 0;
#define njs_arr_is_empty(arr) \
((arr)->items == 0)
njs_inline void *
njs_arr_remove_last(njs_arr_t *arr)
{
arr->items--;
return (char *) arr->start + arr->item_size * arr->items;
}
#endif /* _NJS_ARR_H_INCLUDED_ */