abstract class CountDownLatch[F[_]] extends AnyRef

Concurrency abstraction that supports fiber blocking until n latches are released. Note that this has 'one-shot' semantics - once the counter reaches 0 then release and await will forever be no-ops

See https://typelevel.org/blog/2020/10/30/concurrency-in-ce3.html for a walkthrough of building something like this

Self Type
CountDownLatch[F]
Source
CountDownLatch.scala
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Instance Constructors

  1. new CountDownLatch()

Abstract Value Members

  1. abstract def await: F[Unit]

    Semantically block until the count reaches 0

  2. abstract def release: F[Unit]

    Release a latch, decrementing the remaining count and releasing any fibers that are blocked if the count reaches 0

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
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  2. final def ##: Int
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  3. final def ==(arg0: Any): Boolean
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  4. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
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  6. final def eq(arg0: AnyRef): Boolean
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  7. def equals(arg0: AnyRef): Boolean
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  8. def finalize(): Unit
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  9. final def getClass(): Class[_ <: AnyRef]
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  10. def hashCode(): Int
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    @native()
  11. final def isInstanceOf[T0]: Boolean
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  12. def mapK[G[_]](f: ~>[F, G]): CountDownLatch[G]
  13. final def ne(arg0: AnyRef): Boolean
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  14. final def notify(): Unit
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  15. final def notifyAll(): Unit
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  16. final def synchronized[T0](arg0: => T0): T0
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  17. def toString(): String
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  18. final def wait(): Unit
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    @throws(classOf[java.lang.InterruptedException])
  19. final def wait(arg0: Long, arg1: Int): Unit
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    @throws(classOf[java.lang.InterruptedException])
  20. final def wait(arg0: Long): Unit
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    @throws(classOf[java.lang.InterruptedException]) @native()

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