oceanbase

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#include "util/easy_array.h"
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easy_array_t *easy_array_create(int object_size)
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{
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    easy_pool_t             *pool;
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    easy_array_t            *array;
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    if ((pool = easy_pool_create(0)) == NULL)
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        return NULL;
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    if ((array = (easy_array_t *)easy_pool_alloc(pool, sizeof(easy_array_t))) == NULL)
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        return NULL;
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    easy_list_init(&array->list);
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    array->count = 0;
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    array->pool = pool;
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    array->object_size = easy_max(object_size, (int)sizeof(easy_list_t));
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    return array;
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}
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void easy_array_destroy(easy_array_t *array)
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{
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    easy_pool_destroy(array->pool);
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}
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void *easy_array_alloc(easy_array_t *array)
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{
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    if (easy_list_empty(&array->list) == 0) {
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        array->count --;
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        char                    *ptr = (char *)array->list.prev;
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        easy_list_del((easy_list_t *)ptr);
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        return ptr;
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    }
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    return easy_pool_alloc(array->pool, array->object_size);
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}
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void easy_array_free(easy_array_t *array, void *ptr)
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{
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    array->count ++;
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    easy_list_add_tail((easy_list_t *)ptr, &array->list);
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}
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