buddy.h

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#ifndef __BUDDY_H__
#define __BUDDY_H__
 
#include <stdint.h>
 
#if 0
 
#define BUDDY_MAGIC 0x160602
/*
 * BuddyBlock size should be 
 * aligned to 32 byte 
 */
#pragma pack(push,1)
typedef struct _buddy_block_ {
    _buddy_block_ *next;
    _buddy_block_ *prev;
    void* head;
    uint32_t buddy_magic;
    uint32_t size;
}BuddyBlock;
#pragma pack(pop)
 
typedef struct _buddy_free_list_ {
    BuddyBlock *first;
}BuddyFreeList;
 
 
/*
* AuBuddyInitialise -- initialise the buddy allocator
*/
extern void AuBuddyInitialise();
 
/*
* AuBuddyGetLevel -- Return the buddy level by its size
* @param size -- required size
*/
extern size_t AuBuddyGetLevel(size_t size);
 
/*
* __AuBuddyAlloc -- allocates a memory from given level
* @param level -- level to check
*/
extern void* __AuBuddyAlloc(size_t level);
 
/*
* AuBuddyAlloc -- Allocate some memory
* @param sz -- Size to allocate
*/
extern void* AuBuddyAlloc(size_t sz);
 
/*
* AuBuddyFree -- frees up an allocated
* object
* @param p -- Pointer to memory block
*/
extern void AuBuddyFree(void* p);
 
#endif
 
#endif