#ifndef _MLOOKUP_H_
#define _MLOOKUP_H_

#include <stdlib.h>
#include <stdio.h>
#include <pthread.h>

#define LOADFACTOR 0.5
#define HASH_SIZE 100

typedef struct mhashlistnode {
	unsigned int key;
	void *val; //this can be cast to another type or used to point to a larger structure
	struct mhashlistnode *next;
} mhashlistnode_t;

typedef struct mhashtable {
	mhashlistnode_t *table;	// points to beginning of hash table
	unsigned int size;
	unsigned int numelements;
	float loadfactor;
	pthread_mutex_t locktable;
} mhashtable_t;

unsigned int mhashCreate(unsigned int size, float loadfactor);
unsigned int mhashFunction(unsigned int key);
unsigned mhashInsert(unsigned int key, void *val);
void *mhashSearch(unsigned int key); //returns val, NULL if not found
unsigned int mhashRemove(unsigned int key); //returns -1 if not found
unsigned int mhashResize(unsigned int newsize);
unsigned int *mhashGetKeys(unsigned int *numKeys);
void mhashPrint();

#endif