file_handling_functions.h

#ifndef FUNCTIONS_H
#define FUNCTIONS_H
/*
    This file houses file handling helper functions
 */
#include "common.h"

//char* readNbytesFromOffset(int n,int offset);
//int writeNBytesToOffset(char* buffer,int n,int offset);
    int writeDataBlockToFile(WholeFS*fs,char* blockBuffer,int existingfileSize,  int index);
    char* readDataBlockFromFile(WholeFS*fs,  int index);
    void writeInodeBlockToFile(WholeFS*fs,char* blockBuffer,  int index);
    char* readInodeBlockFromFile(WholeFS*fs,  int index);
    char* readSuperBlockFromFile(WholeFS*fs);
    void writeSuperNodeBlockToFile(WholeFS*fs,char* blockBuffer);
    void readSuperBlock(WholeFS* fs);
    void writeSuperBlock(WholeFS* fs);
    int writeEntireDataBlockToFile(WholeFS*fs,char* blockBuffer,  int index);
    int appendNbytesInDataBlockToFile(WholeFS*fs,char* blockBuffer,int off,  int index,int n);
    int writeInodeToFile(WholeFS* fs,Inode* inode,int inodeIndex);
    
#endif