Fiber.Status

Fiber.Status describe the current status of a Fiber.

Each fiber can be in one of the following statues:

• Done
• Finishing
• Running
• Suspended

In the following example, we are going to await on a never-ending fiber and determine the id of that fiber, which we are blocking on:

import zio._
import zio.console._
for {
  f1 <- ZIO.never.fork
  f2 <- f1.await.fork
  blockingOn <- f2.status
    .collect(()) { case Fiber.Status.Suspended(_, _, _, blockingOn, _) =>
      blockingOn
    }
    .eventually
} yield (assert(blockingOn == List(f1.id)))