defragmenter.c

#include <stdint.h>
#include <fastdb.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

node_t *addDEFNode(node_t *node, FILE *db, int depth)
{
	node_t *nn = createRNode(node->name);
	nn->size = 0;
	nn->linked = node->linked;
	writeNode(nn, db);
	if (node->hasChild == true && !node->isPointer)
	{
		for (int i = 0; i < node->size; i++)
		{
			node_t *cnode = getNodeFromAddr(node->children[i], db_file);
			node_t *cn = addDEFNode(cnode, db, depth + 1);
			linkNode(nn, cn, db);
			if (cnode->hasChild == false)
			{
				char *content = readContent(cnode, db_file);
				writeContent(cn, content, db);
			}
			else
				free(cn->children);
			free(cn);
		}
	}
	return nn;
}

void defragment()
{
	printf("\nInfo: defragmenting...");
	remove("./temp.dat");
	FILE *tempsFile = fopen("./temp.dat", "wb+");
	fseek(tempsFile, 0, SEEK_SET);
	addDEFNode(db_node, tempsFile, 0);
	fclose(db_file);
	fclose(tempsFile);
	remove(input_file_path);
	rename("./temp.dat", input_file_path);
	printf("\nInfo: Success : defragmenting done");
}