#ifndef SERVER_H
#define SERVER_H

#include <linux/version.h>
#include <linux/timer.h>
#include <asm/uaccess.h>
#include <linux/gfp.h>
#include "net.h"
#include "vars.h"
#include "hashtable.h"

#define TIMEOUT		5 //seconds


MODULE_LICENSE("GPL");
MODULE_AUTHOR("Michael R. Hines, mhines@cs.fsu.edu");
MODULE_DESCRIPTION("Anemone Memory Server");

static timeval 		start, 
			end, 
			diff;

kmem_cache_t		*block_cache;

struct timer_list 	soft_timer;

struct timer_list	broadcast_timer;

struct timer_list	session_timer;

static ulong 		percent = 95,
			num_blocks = 0,
			reads = 0,
			writes = 0;

HashTable		table;

LIST_HEAD(messages);
static LIST_HEAD(session_list);

extern unsigned long totalram_pages;
extern unsigned long nr_free_pages(void);

/*
 * This block is a wrapper to a real page
 * used to identify blocks local only to the
 * memory server.
 */ 
typedef struct Block {
	PageKey		key;
	struct page *	page;
} Block;


typedef struct Session	Session;
struct Session{
	u8	mac[ETH_ALEN];
	ulong	sessionid;
	timeval	timestamp;
	struct list_head	queue;
};

module_param(plog, int, 0);
module_param(hash_size, int, 0);
module_param(percent, ulong, 0);
MODULE_PARM_DESC(plog, "To packet logging and timing. values: 1 for yes, 0 for no, default: no");
MODULE_PARM_DESC(hash_size, "Specify how many buckets in the engine/server's hashtable. Default: 2048");
MODULE_PARM_DESC(percent, "Default: 100 ; Upper limit on local memory contribution to cluster.");

#define PROCNAME	"sinfo"
#define PROCNAME2	"sdebug"
#define PROCNAME3	"squery"

//procfile funtions
int 	anemone_server_recv(sk_buff *);
int 	server_report(char *, char **, off_t, int, int *, void *);
int 	toggle_logging(struct file*, const char*, ulong, void*);
int 	toggle_debug(struct file*, const char*, ulong, void*);
int 	query_block(struct file *, const char*, ulong, void*);

/* Server functions */
void 	mem_print(void);
sk_buff * page_in(Message *, PageKey *, sk_buff *);
sk_buff * page_out(Message *, PageKey *, sk_buff *);

/* Initialize and Cleanup functions */
int 	server_init(void);
void 	proc_init(void);
int 	mem_initialize(void);
void 	server_cleanup(void);
void 	mem_cleanup(void);

void broadcast_status(void);
void broadcast_timeout(ulong);
void session_timeout(ulong);
void fill_status_info(Message*); 
void update_session_status(u8*, ulong);
void delete_session(u8*);

static char report_data[1000];
struct proc_dir_entry * aprocfile = NULL;
struct proc_dir_entry * aprocfile2 = NULL;
struct proc_dir_entry * aprocfile3 = NULL;

#endif