common open fun <A> TMVar<A>.tryPut(a: A): Boolean

Same as TMVar.put except that it returns true or false if was successful or it retried.

import arrow.fx.stm.TMVar
import arrow.fx.stm.atomically

suspend fun main() {
  val tmvar = TMVar.new(20)
  val result = atomically {
  println("Result $result")
  println("New value ${atomically { tmvar.tryTake() } }")

This function never retries.

See also


arrow.fx.stm.STM for a function that retries if the TMVar is not empty.

Do you like Arrow?

Arrow Org