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/*
* Copyright (C) Igor Sysoev
* Copyright (C) NGINX, Inc.
*/
#ifndef _NXT_VECTOR_H_INCLUDED_
#define _NXT_VECTOR_H_INCLUDED_
typedef enum {
NXT_VECTOR_INITED = 0,
NXT_VECTOR_DESCRETE,
NXT_VECTOR_EMBEDDED,
} nxt_vector_type_t;
typedef struct {
void *start;
/*
* A vector 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;
nxt_vector_type_t type:8;
} nxt_vector_t;
NXT_EXPORT nxt_vector_t *nxt_vector_create(nxt_uint_t items, size_t item_size,
const nxt_mem_proto_t *proto, void *pool);
NXT_EXPORT void *nxt_vector_init(nxt_vector_t *vector, nxt_uint_t items,
size_t item_size, const nxt_mem_proto_t *proto, void *pool);
NXT_EXPORT void nxt_vector_destroy(nxt_vector_t *vector,
const nxt_mem_proto_t *proto, void *pool);
NXT_EXPORT void *nxt_vector_add(nxt_vector_t *vector,
const nxt_mem_proto_t *proto, void *pool);
NXT_EXPORT void *nxt_vector_zero_add(nxt_vector_t *vector,
const nxt_mem_proto_t *proto, void *pool);
NXT_EXPORT void nxt_vector_remove(nxt_vector_t *vector, void *item);
#define \
nxt_vector_last(vector) \
nxt_pointer_to((vector)->start, \
(vector)->item_size * ((vector)->items - 1))
#define \
nxt_vector_reset(vector) \
(vector)->items = 0;
#define \
nxt_vector_is_empty(vector) \
((vector)->items == 0)
nxt_inline void *
nxt_vector_remove_last(nxt_vector_t *vector)
{
vector->items--;
return nxt_pointer_to(vector->start, vector->item_size * vector->items);
}
#endif /* _NXT_VECTOR_H_INCLUDED_ */
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