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/*
+----------------------------------------------------------------------+
| Swoole |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the Apache license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.apache.org/licenses/LICENSE-2.0.html |
| If you did not receive a copy of the Apache2.0 license and are unable|
| to obtain it through the world-wide-web, please send a note to |
| license@swoole.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Tianfeng Han <mikan.tenny@gmail.com> |
+----------------------------------------------------------------------+
*/
#ifndef _SW_ARRAY_H_
#define _SW_ARRAY_H_
SW_EXTERN_C_BEGIN
/**
* The default swArray->pages pointer array is SW_ARRAY_PAGE_MAX,
* it means you can manage up to (SW_ARRAY_PAGE_MAX*page_size) elements
*/
#define SW_ARRAY_PAGE_MAX 1024
typedef struct _swArray
{
void **pages;
/**
* number of page
*/
uint16_t page_num;
/**
* number of data elements per page
*/
uint16_t page_size;
/**
* data element size
*/
uint32_t item_size;
/**
* number of data
*/
uint32_t item_num;
uint32_t offset;
} swArray;
#define swArray_page(array, n) ((n) / (array)->page_size)
#define swArray_offset(array, n) ((n) % (array)->page_size)
swArray *swArray_new(int page_size, size_t item_size);
void swArray_free(swArray *array);
void *swArray_fetch(swArray *array, uint32_t n);
int swArray_store(swArray *array, uint32_t n, void *data);
void *swArray_alloc(swArray *array, uint32_t n);
int swArray_append(swArray *array, void *data);
int swArray_extend(swArray *array);
void swArray_clear(swArray *array);
SW_EXTERN_C_END
#endif /* _SW_ARRAY_H_ */
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