Skip to main content
Version: 2.0.x


Fiber.Status describes the current status of a Fiber.

Each fiber can be in one of the following status:

  • Done
  • 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._

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