class Opal::Async::Worker

• Opal::Async::Worker
• Reference
• Object

Overview

Background asynchronous worker fiber inspired by Python Textual Workers. Executes long-running tasks concurrently without blocking terminal rendering or freezing input.

Defined in:

opal/async/worker.cr

Constructors

• .new(name : String = "worker", &work : Worker -> String | Int32 | Int64 | Float64 | Bool | Nil)

Instance Method Summary

• #cancel : self

  Requests worker cancellation

• #cancelled? : Bool
• #error : Exception | Nil
• #name : String
• #on_complete(&block : -> Nil) : self
• #on_error(&block : Exception -> Nil) : self
• #on_progress(&block : Float64 -> Nil) : self
• #progress : Float64
• #report_progress(p : Float64) : Nil

  Called by the worker block to report incremental completion percentage (0.0 to 1.0)

• #result : String | Int32 | Int64 | Float64 | Bool | Nil
• #start : self

  Spawns background execution fiber

• #state : WorkerState

Constructor Detail

Instance Method Detail