《通过C#学Proto.Actor模型》之Spawning

Props是配置Actor和实例化Actor，那实例化后，就应该访问了，Props.Actor提供了Actor.Spawn(),Actor.SpawnPrefix(),Actor.SpawnNamed()三个方法，来获取Actor实例，需要注意的是，这些方法返回的并不是真正的Actor对象，而是一个ProgressID，一个代表Actor对象的进程ID，缩写PID。

上代码：

 using Proto;
 using System;
 using System.Threading;
 using System.Threading.Tasks;

 namespace P003_SpawningActors
 {
     class Program
     {
         static void Main(string[] args)
         {
             var props = Actor.FromProducer(() => new MyActor());

             //产生一个自定义名称的PID
             var pid1 = Actor.Spawn(props);
             pid1.Tell(new MyEntity { ID =  });
             Thread.Sleep();
             Console.WriteLine("------------------------------------------");
             //产生一个有gsw前缀，跟自动生成的名称的PID
             var pid2 = Actor.SpawnPrefix(props, "gsw");
             pid2.Tell(new MyEntity { ID =  });
             Thread.Sleep();
             Console.WriteLine("------------------------------------------");
             //产生一个名称为gswpid的PID
             var pid3 = Actor.SpawnNamed(props, "gswpid");
             pid3.Tell(new MyEntity { ID =  });
             Console.ReadLine();
         }
     }

     public class MyActor : IActor
     {
         public Task ReceiveAsync(IContext context)
         {
             if (context.Message is MyEntity myEntity)
             {
                 Console.WriteLine($"父 SelfID={context.Self.Id}   myEntity.ID={myEntity.ID}");           

                 var cldProps = Actor.FromProducer(() => new MyChildActor());
                 //第一个子Actor
                 var pidCld1 = context.Spawn(cldProps);
                 pidCld1.Tell(new MyChildEntity { Message = "1 message,myEntity.ID=" + myEntity.ID });
                 //第二个子Actor
                 var pidCld2 = context.SpawnPrefix(cldProps, "gswCld");
                 pidCld2.Tell(new MyChildEntity { Message = "2 message,myEntity.ID=" + myEntity.ID });
                 //第三个子Actor
                 var pidCld3 = context.SpawnNamed(cldProps, "gswCldPid");
                 pidCld3.Tell(new MyChildEntity { ID = , Message = "3 message,myEntity.ID=" + myEntity.ID });
             }
             return Actor.Done;
         }
     }
     public class MyChildActor : IActor
     {
         public Task ReceiveAsync(IContext context)
         {
             if (context.Message is MyChildEntity myChildEntity)
             {
                 Console.WriteLine($"子    SelfID={context.Self.Id}     Message={myChildEntity.Message}");
             }
             return Actor.Done;
         }
     }
     public class MyEntity
     {
         public int ID { get; set; }
     }
     public class MyChildEntity
     {
         public string Message { get; set; }
         public int ID { get; set; }
     }
 }

这个例子很简单，说明了三个Spawn的使用方式和Self.Id的特征，包括产生子Actor后，子Actor的Self.Id会带有父ID，结果如下：