Packages

final class FiberRef[A] extends Serializable

Fiber's counterpart for Java's ThreadLocal. Value is automatically propagated to child on fork and merged back in after joining child.

for {
  fiberRef <- FiberRef.make("Hello world!")
  child <- fiberRef.set("Hi!).fork
  result <- child.join
} yield result

result will be equal to "Hi!" as changes done by child were merged on join.

FiberRef#make also allows specifying how the values will be combined when joining. By default this will use the value of the joined fiber. for { fiberRef <- FiberRef.make(0, math.max) child <- fiberRef.update(_ + 1).fork _ <- fiberRef.update(_ + 2) _ <- child.join value <- fiberRef.get } yield value }}}

value will be 2 as the value in the joined fiber is lower and we specified max as our combine function.

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  1. FiberRef
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Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  8. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  9. final val get: UIO[A]

    Reads the value associated with the current fiber.

    Reads the value associated with the current fiber. Returns initial value if no value was set or inherited from parent.

  10. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  12. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  13. final def locally[R, E, B](value: A)(use: ZIO[R, E, B]): ZIO[R, E, B]

    Returns an IO that runs with value bound to the current fiber.

    Returns an IO that runs with value bound to the current fiber.

    Guarantees that fiber data is properly restored via bracket.

  14. final def modify[B](f: (A) => (B, A)): UIO[B]

    Atomically modifies the FiberRef with the specified function, which computes a return value for the modification.

    Atomically modifies the FiberRef with the specified function, which computes a return value for the modification. This is a more powerful version of update.

  15. final def modifySome[B](default: B)(pf: PartialFunction[A, (B, A)]): UIO[B]

    Atomically modifies the FiberRef with the specified partial function, which computes a return value for the modification if the function is defined in the current value otherwise it returns a default value.

    Atomically modifies the FiberRef with the specified partial function, which computes a return value for the modification if the function is defined in the current value otherwise it returns a default value. This is a more powerful version of updateSome.

  16. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  17. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  18. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  19. final def set(value: A): UIO[Unit]

    Sets the value associated with the current fiber.

  20. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  21. def toString(): String
    Definition Classes
    AnyRef → Any
  22. final def update(f: (A) => A): UIO[A]

    Atomically modifies the FiberRef with the specified function.

  23. final def updateSome(pf: PartialFunction[A, A]): UIO[A]

    Atomically modifies the FiberRef with the specified partial function.

    Atomically modifies the FiberRef with the specified partial function. if the function is undefined in the current value it returns the old value without changing it.

  24. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  25. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  26. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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