Directory.h

#ifndef DIRECTORY
#define DIRECTORY

#include<stdio.h>
#include"Cache.h"

struct directory{
	struct L1_cache *cache0;
	struct L1_cache *cache1;
	struct L1_cache *cache2;
	struct L1_cache *cache3;
};

struct directory* directory_init(struct L1_cache *C0, struct L1_cache *C1, struct L1_cache *C2, struct L1_cache *C3){
	struct directory *dir = malloc(sizeof(struct directory));
	dir -> cache0 = C0;
	dir -> cache1 = C1;
	dir -> cache2 = C2;
	dir -> cache3 = C3;

	return dir;
};

int check_cache_block_in_all(struct directory *dir,unsigned int addr){ //Returns 1 if the block exists somewhere else in the cache hierarchy else returns 0
	unsigned int tag = 0;
	if(lookup_cache(dir->cache0, addr) != NULL){
		tag |= CACHE0_ID; //Means the block exists
	}
	if( lookup_cache(dir->cache1, addr) != NULL ){
		tag |= CACHE1_ID;
	}
	if( lookup_cache(dir->cache2, addr) != NULL ){
		tag |= CACHE2_ID;
	}
	if( lookup_cache(dir->cache3, addr) != NULL ){
		tag |= CACHE3_ID;
	}

	return tag; //Not found
};

int check_cache_0(struct directory *dir, unsigned int addr){
	if(lookup_cache(dir->cache0, addr) != NULL){
		return 1; //Means the block exists
	}
	return 0;
};

int check_cache_1(struct directory *dir, unsigned int addr){
	if(lookup_cache(dir->cache1, addr) != NULL){
		return 1; //Means the block exists
	}
	return 0;
};

int check_cache_2(struct directory *dir, unsigned int addr){
	if(lookup_cache(dir->cache2, addr) != NULL){
		return 1; //Means the block exists
	}
	return 0;
};

int check_cache_3(struct directory *dir, unsigned int addr){
	if(lookup_cache(dir->cache3, addr) != NULL){
		return 1;
	}
	return 0;
};

#endif // DIRECTORY