如何为参与者指定线程池

我相信你可以这样做:

trait MyActor extends Actor {
  val pool = ... // git yer thread pool here
  override def scheduler = new SchedulerAdapter {
    def execute(block: => Unit) =
      pool.execute(new Runnable {
        def run() { block }
      })
  }
} 

对于scala 2.8.1,它是:

scala -Dactors.corePoolSize=20

但是很容易重用actor子系统使用的线程池。首先,你可以控制它的大小:

-Dactors.maxPoolSize=8

您可以调用它的工作:

actors.Scheduler.execute( f ); //f is => Unit

它唯一缺少的是安排工作的能力。为此,我使用单独的 ScheduledExecutorService 哪个是 单线程 并在actors线程池上运行其工作:

object MyScheduler {
  private val scheduler = Executors.newSingleThreadedScheduledExecutorService

  def schedule(f: => Unit, delay: (Long, TimeUnit)) : ScheduledFuture[_] = {
      scheduler.schedule(new ScheduledRun(f), delay._1, delay._2)
  }

  private class ScheduledRun(f: => Unit) extends Runnable {
    def run = actors.Scheduler.execute(f)
  }

}

然后您可以使用它来安排任何事情:

MyScheduler.schedule(f, (60, SECONDS))