Csharp 如何在Akka.NET中重新启动执行元时清除邮箱

这是我写的LINQPad脚本-请忽略ActorSytem个终止内容；我只是需要它来确保程序停止运行；)

async Task Main()
{
    // Initialize Actor System
    var system = ActorSystem.Create("MySystem");

    // Create Props for the EchoActor
    var props = Props.Create<EchoActor>();

    // Create the EchoActor
    var echoActor = system.ActorOf(props, "echoActor");

    // Send 10 messages to the EchoActor
    for (int i = 0; i < 10; i++)
    {
        echoActor.Tell($"Message {i + 1}");
    }

    // Allow some time for messages to process before shutting down
    await system.WhenTerminated;
}

// Define the EchoActor class
public class EchoActor : ReceiveActor
{
    public EchoActor()
    {
        NormalBehavior();       
    }

    private void NormalBehavior()
    {
        ReceiveAnyAsync(async message =>
        {
            await Task.Delay(100);
            Console.WriteLine($"Received and echoing back: {message}");
            throw new ApplicationException("restart");
        });
    }
    
    private void RecoverBehavior(){
        Receive<RecoverMarker>(_ =>{
            Become(NormalBehavior);
            Context.System.Terminate();
        });
        
        ReceiveAny(_ =>{
            // discard
            Console.WriteLine($"Discarding: {_}");
        });
    }

    private class RecoverMarker{}
    
    protected override void PreRestart(Exception ex, object message){
        Self.Tell(new RecoverMarker());
    }
    
    protected override void PostRestart(Exception ex){
        Become(RecoverBehavior);
    }
}

该示例的工作原理:它使用behavior switching在参与者重新启动后立即将其移动到"丢弃"模式，并且当参与者的旧实例被销毁时，"重新启动标记"被推入参与者的邮箱.演员将丢弃所有较旧的消息，直到它达到RestartMarker.

这是解决此问题的通用方法，它无需触及内部邮箱API等即可工作.