Struct Rules 

pub struct Rules { /* private fields */ }

What QCode remembers for the rules, for as long as it runs.

Implementations

impl Rules

pub fn check(&self, from: End, to: End, now: Instant) -> Result<u32, Refusal>

Asks the rules that do not need the person about a message from from to to at now, and answers the step of the chain it would be.

Nothing is recorded: a message that then waits for the person or is denied by them has not been sent.

Errors

The first rule the message breaks.

pub fn hop(&self, tab: u64, now: Instant) -> u32

The step a message from tab at now would be: one more than the last message it was sent, when that came within CHAIN_WINDOW, and the first step otherwise.

pub fn decision(&self, from: u64, to: u64) -> Option<Decision>

What the person said about messages from from to to, when they were asked.

pub fn decide(&mut self, from: u64, to: u64, decision: Decision)

Records what the person said about messages from from to to.

pub fn sent(&mut self, from: u64, now: Instant)

Counts a message from sent at now against its pace, whether it is taken at once or waits for the person.

pub fn received(&mut self, to: u64, hop: u32, now: Instant)

Records that to was handed a message that was step hop of its chain, at now; what to sends next continues the chain.

pub fn new_chain(&mut self, tab: u64)

Ends the chain the tab tab was in: what it sends next starts a new one. Called when the person gave that tab something of their own since it was last handed a message, so what it sends is their new task rather than its answer to another agent.

pub fn forget(&mut self, tab: u64)

Forgets everything about the tab tab, which was closed: its keys are never used again, and nothing of it should be held for as long as QCode runs.

Trait Implementations

impl Debug for Rules

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Rules

fn default() -> Self

Returns the “default value” for a type.