dmmlib/block_header.h

#ifndef BLOCK_HEADER_H
#define BLOCK_HEADER_H

#include <stddef.h>
#include <stdbool.h>

typedef struct block_header_s {
	size_t size;
	size_t requested_size;
	size_t previous_size;
	void *next;
} block_header_t;

#define HEADER_SIZE sizeof(block_header_t)

void * get_next(void *ptr);

size_t get_size(void *ptr);

void set_size(void *ptr, size_t size);
void set_requested_size(void *ptr, size_t size);

void set_next(void *block, void *next_block);

bool is_previous_free(void *ptr);

size_t get_previous_size(void *ptr);

void * get_previous(void *ptr);

/**
 * Removes a memory block from a singly linked list of memory blocks.
 *
 * @param *block The block to be removed.
 * @param *starting_node The starting memory block of the list.
 */
void remove_block(void *block, void *starting_node);

#endif /* BLOCK_HEADER_H */