utility.h

/*
 * Host Dispatcher Shell Project for SOFE 3950U / CSCI 3020U: Operating Systems
 *
 * Copyright (C) 2015, <GROUP MEMBERS>
 * All rights reserved.
 * 
 */
#ifndef UTILITY_H_
#define UTILITY_H_

// The amount of available memory
#define MEMORY 1024
//#include "queue.h"
// Resources structure containing integers for each resource constraint and an
// array of 1024 for the memory
// typedef struct {
//  ...
//  ...
// } resources;
struct resources{
	int res_avail[4];
	int memory[MEMORY];
}resources;

// Processes structure containing all of the process details parsed from the 
// input file, should also include the memory address (an index) which indicates
// where in the resources memory array its memory was allocated
// typedef struct {
//  ...
//  ...
// } process;
struct proc{
	int arrival;
	int priority;
	int runtime;
	int memory;
	int resourceType[4];
	int pid;
	int address;
}proc; 

// Include your relevant functions declarations here they must start with the 
// extern keyword such as in the following examples:

// Function to allocate a contiguous chunk of memory in your resources structure
// memory array, always make sure you leave the last 64 values (64 MB) free, should
// return the index where the memory was allocated at
extern int alloc_mem(int memory,int priority);

// Function to free the allocated contiguous chunk of memory in your resources
// structure memory array, should take the resource struct, start index, and 
// size (amount of memory allocated) as arguments
extern void free_mem(int index, int memory);

// Function to parse the file and initialize each process structure and add
// it to your job dispatch list queue (linked list)
//extern void load_dispatch(char *dispatch_file, struct queue *queue);
extern int removeP(int ppriority,int pmemory);

#endif /* UTILITY_H_ */