Struct proj_billing::billing::sign_on_meter::SignOnMeter

pub struct SignOnMeter<T: Read + Write> { /* fields omitted */ }

State of the billing protocol

Trait Implementations

impl<T: Read + Write> BillingProtocol<T, f64> for SignOnMeter<T>

type Consumption = FloatingConsumption

Consumption information for billing e.g. the time of consumption and the units consumed

type Prices = Prices

Information used to calculate the bill (e.g. coefficients for each in which a unit could be consumed)

fn null_prices() -> Self::Prices

returns a null Prices object

fn consume(&mut self, consumption: &Self::Consumption)

To be run on the meter. This function should check for any new prices, and then add the price of consumption to the running bill

fn send_billing_information(&mut self)

Get the server up to speed with the current billing information: a message from the device to the server.

fn pay_bill(&mut self) -> f64

Pay bill (run on the server) This will block until it has received the billing information from the meter (via send_billing_information)

fn change_prices(&mut self, prices: &Self::Prices)

Change the way bills are calculated. This is a message sent from the server (utility company) to the meter.

fn new_meter(channel: T,
             prices: &Prices,
             meter_keys: MeterKeys)
             -> SignOnMeter<T>

Instantiate a new meter

fn new_server(channel: T, keys: Keys, prices: &Prices) -> SignOnMeter<T>

Instantiate a new server