【scala】無ロックマルチスレッド印刷1->100

import java.util.concurrent.atomic.AtomicInteger

import scala.concurrent.{ExecutionContext, Future}

object ThreadTest {

    def main(args: Array[String]): Unit = {

        val i = new AtomicInteger(1)
        
        def createF(threadContext: Int)(implicit executionContext: ExecutionContext) = Future{
            val v = i.get()
            var tag = true
            for (j  if(b) thread2 else Future.successful(false))

        def thread2: Future[Boolean] = createF(2)
                .flatMap(b => if(b) thread3 else Future.successful(false))

        def thread3: Future[Boolean] = createF(3)
                        .flatMap(b => if(b) thread1 else Future.successful(false))


        thread1
        while(true) 1
    }
}