#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <arpa/inet.h>
#include <sys/time.h>

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Data Structures
struct	_Rssi_sample

struct	_Deque

struct	_Element

Macros
#define	SAMPLE_DELAY 6

Typedefs
typedef struct _Rssi_sample	Rssi_sample

typedef struct _Deque	Deque

typedef struct _Element	Element

Functions
void	clear_outdated_values (Deque *list)
	clear_outdated_values removes all outdated RSSI in a RSSI deque. More...

void	add_value (Deque *list, double value)
	add_value adds a new RSSI value at the end of the deque. More...

void	clear_outdated_Elements (Element **list)
	clear_outdated_Elements removes all outdated Elements in the linked-list. More...

Element *	find_mac (Element list, u_char mac_value)
	find_mac looks up for a MAC address in the list. More...

Element *	add_element (Element *list, u_char mac_value)
	add_element adds an element (a new device node) to the list. Elements shall be ordered. More...

void	calculate_avg (Element *list, u_char mac_value, u_char nb_samples, u_char avg_value)
	Calculate avg ss values from a given string mac address. More...

unsigned int	mac_maching (u_char mac1, u_char mac2)
	This function makes the comparison of two mac addresses to check if they are equals. More...

Element *	find_deque (Element list, Deque deq)
	This function find a specific Deque in the Element List. More...

void	decrement_all_deadlines (Element *list)
	This function decrement every second the deadline value of all the samples included in an element list. More...

Macro Definition Documentation

#define SAMPLE_DELAY 6

Typedef Documentation

typedef struct _Deque Deque

typedef struct _Element Element

typedef struct _Rssi_sample Rssi_sample

Function Documentation

Element* add_element	(	Element **	list,
		u_char *	mac_value
	)

add_element adds an element (a new device node) to the list. Elements shall be ordered.

Returns: the added element pointer.

Parameters

list	a pointer to the list head pointer.
mac_value	the MAC address of the new node to be added.

void add_value	(	Deque *	list,
		double	value
	)

add_value adds a new RSSI value at the end of the deque.

Parameters

the	deque to append the element to.
value	the RSSI value (dBm, do not forget to convert when inserting!)

void calculate_avg	(	Element **	list,
		u_char *	mac_value,
		u_char *	nb_samples,
		u_char *	avg_value
	)

Calculate avg ss values from a given string mac address.

Parameters

mac_value	the string MAC address necessary to identify the device to which calculation is needed.
list	a pointer to the list head pointer.
nb_samples	is a pointer that will contain the number of sample we need to know.
avg_value	is a pointer that will contain the average rssi_value based on the captured samples.

void clear_outdated_Elements ( Element ** list )

clear_outdated_Elements removes all outdated Elements in the linked-list.

Parameters

list	the Element (devices) list in which the outdated devices need to be removed

void clear_outdated_values ( Deque * list )

clear_outdated_values removes all outdated RSSI in a RSSI deque.

Parameters

list	the deque from which to filter the outdated values.

void decrement_all_deadlines ( Element * list )

This function decrement every second the deadline value of all the samples included in an element list.

Parameters

list	The Element list head pointer

Element* find_deque	(	Element *	list,
		Deque *	deq
	)

This function find a specific Deque in the Element List.

Returns: it return a pointer to the Element in which the deque is located

Parameters

list	the Element list head pointer
deq	the address of the Deque to find

Element* find_mac	(	Element *	list,
		u_char *	mac_value
	)

find_mac looks up for a MAC address in the list.

Returns: a pointer to the corresponding element, NULL if not found.

Parameters

list	the list head pointer.
mac_value	the MAC address to search.

unsigned int mac_maching	(	u_char *	mac1,
		u_char *	mac2
	)

This function makes the comparison of two mac addresses to check if they are equals.

Returns: it return 0 if they are not equal and 1 if they are equal

Parameters

mac1	the first string mac address
mac2	the second string mac address

Data Structures

Macros

Typedefs

Functions

Macro Definition Documentation

Typedef Documentation

Function Documentation