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Juvix imports

module arch.node.engines.ticker_messages;

import prelude open;

Ticker Messages¶

Message interface¶

type TickerMsg :=
  | TickerMsgIncrement
  | TickerMsgCountRequest
  | TickerMsgCountReply CountReply;

Message sequence diagram¶

Requesting a counter value¶

sequenceDiagram
    participant Ticker
    participant EngineTickerClient

    EngineTickerClient ->> Ticker: Send TickerMsgIncrement
    Note over Ticker: Counter = 1

    EngineTickerClient ->> Ticker: Send TickerMsgIncrement
    Note over Ticker: Counter = 2

    EngineTickerClient ->> Ticker: Send TickerMsgCount
    Ticker ->> EngineTickerClient: Respond with Counter (2)

A client interacts with the Ticker engine, which increments and responds with the counter value.

Message types¶

`TickerMsgIncrement`¶

A TickerMsgIncrement message instructs the engine to increase the counter. This message doesn't require any arguments.

`TickerMsgCountRequest`¶

A TickerMsgCountRequest message requests the engine to send the current counter value back to the requester. This message doesn't require any arguments.

`CountReply`¶

The CountReply payload contains the counter value.

type CountReply : Type :=
  mkCountReply@{
    counter : Nat;
  };

`TickerMsg`¶

type TickerMsg :=
  | TickerMsgIncrement
  | TickerMsgCountRequest
  | TickerMsgCountReply CountReply;

Engine components¶