Crate edfsm_machine

Event driven FSM Machine

edfsm-machine effectively implements the Actor Model for Rust, where its messages are the inputs, events and outputs.

edfsm-machine provides a convenient way to drive an edfsm-based finite state machine with inputs (commands and events), and a means to capture its resulting events and “outputs”. Outputs are the consequence of invoking edfsm’s side-effect handling, and usually means capturing an output buffer of effects.

Upon initialising the machine and wiring up inputs, event logs and outputs, a future is produced that can be spawned by executors such as those provided by tokio.

Taking this further, a machine’s inputs can be conveniently sourced from a streambed-logged log of events that have been persisted, and logged back there. These adaptations provides an event-sourcing-based Actor Model.

This library assumes no_std and requires features such as tokio to make it useful.

Modules

adapter

error

output

Constants

DEFAULT_BUFFER

Default machine input backlog limit

Traits

Machine

A Machine is a state machine (implementing Fsm) that will run in a rust task.

Functions

machine

Create new machine for an Fsm of type M

machine_with_effects

Create a new machine for an Fsm of type M with explicit effects and backlog

Type Aliases

Command

The command type of an Fsm

Effects

The effector/effects type of an Fsm

Event

The event type of an Fsm

In

The input type of an Fsm

Out

The output message type of an Fsm for the purpose of this module.

State

The state type of an Fsm