NOT working balloc

This commit is contained in:
secXsQuared 2016-05-26 14:00:48 -07:00
parent f6e21df5d2
commit 4410fb50fa
2 changed files with 89 additions and 0 deletions

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#include <balloc.h>
#include "linked_list.h"
#include "balloc.h"
typedef struct
{
linked_list_node_t list_node;
} balloc_header_t;
static inline uint32_t _get_min_granularity()
{
return sizeof(balloc_header_t);
}
static inline int32_t _order_of_two(uint32_t num)
{
int32_t result = -1;
if(num == 1)
{
result = 0;
}
else if(num % 2 == 0 && num != 0)
{
result = 1;
while((num >> result) != 1)
{
result++;
}
}
return result;
}
static inline int32_t _get_max_order(uint32_t size, uint32_t granularity)
{
if(size == 0 || granularity == 0 || granularity > size || size % granularity != 0)
return -1;
return _order_of_two(size/granularity);
}
int32_t balloc_free_list_size(uint32_t size, uint32_t granularity)
{
int32_t result = _get_max_order(size,granularity);
return result == -1 ? (result) : (result) * ((int32_t)sizeof(linked_list_t));
}
int32_t balloc_bit_map_size(uint32_t size, uint32_t granularity)
{
}
int32_t balloc_init(balloc_desc_t* desc,
void* base,
uint32_t size,
uint32_t granularity)
{
if( desc == NULL || base == NULL || granularity == 0 || size == 0 ||
granularity < _get_min_granularity() ||
size < granularity ||
size % granularity != 0)
{
return 1;
}
desc->size = size;
desc->base = base;
desc->granularity = granularity;
desc->bit_map = bit_map;
desc->free_list = free_list;
}

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#ifndef _BALLOC_H_
#define _BALLOC_H_
#include "linked_list.h"
#include "k_def.h"
#include "bit_ops.h"
#include "k_type.h"
typedef struct
{
void* base;
uint32_t size;
uint32_t granularity;
linked_list_t* free_list;
uint32_t* bit_map;
} balloc_desc_t;
#endif