#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <net/pkt_sched.h>
#include <linux/sched.h>
#include <linux/timer.h>

/** Timer */
//extern struct timer_list estimator_timer;


/** We assume that the list of devices in dev_base does not change and
 * hence once the list of usage is built for each device, we assume that
 * there is a one-to-one correspondence in the list of devices and the 
 * list of usage structures.
 */
/** Usage structure list */
struct bwusage {
	struct bwusage *next;
	char *name;

	unsigned long rx_bps;
	unsigned long rx_avbps;
	unsigned long rx_pps;
	unsigned long rx_avpps;
	unsigned long rx_bytes;
	unsigned long rx_total_bytes;
	unsigned long rx_packets;
	unsigned long rx_total_packets;

	unsigned long tx_bps;
	unsigned long tx_avbps;
	unsigned long tx_pps;
	unsigned long tx_avpps;
	unsigned long tx_bytes;
	unsigned long tx_total_bytes;
	unsigned long tx_packets;
	unsigned long tx_total_packets;
};
extern struct bwusage *bwusage_head;

/** bwusage_head lock */
extern rwlock_t bwusage_head_lock;