peek
Read the front element of a TQueue without removing it.
import arrow.fx.stm.TQueue
import arrow.fx.stm.atomically
suspend fun main() {
//sampleStart
val tq = TQueue.new<Int>()
val result = atomically {
tq.write(2)
tq.peek()
}
//sampleEnd
println("Result $result")
println("Items in queue ${atomically { tq.flush() }}")
}Content copied to clipboard
This function retries if the TQueue is empty.
See also
for a version that removes the front element.
for a version that does not retry.