《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：

 1 using proto;
 2 using system;
 3 using system.threading;
 4 using system.threading.tasks;
 5 
 6 namespace p003_spawningactors
 7 {
 8     class program
 9     {
10         static void main(string[] args)
11         {
12             var props = actor.fromproducer(() => new myactor());
13 
14             //产生一个自定义名称的pid
15             var pid1 = actor.spawn(props);
16             pid1.tell(new myentity { id = 1 });
17             thread.sleep(1000);
18             console.writeline("------------------------------------------");
19             //产生一个有gsw前缀，跟自动生成的名称的pid
20             var pid2 = actor.spawnprefix(props, "gsw");
21             pid2.tell(new myentity { id = 2 });
22             thread.sleep(1000);
23             console.writeline("------------------------------------------");
24             //产生一个名称为gswpid的pid
25             var pid3 = actor.spawnnamed(props, "gswpid");
26             pid3.tell(new myentity { id = 3 });
27             console.readline();
28         }
29     }
30 
31     public class myactor : iactor
32     {
33         public task receiveasync(icontext context)
34         {
35             if (context.message is myentity myentity)
36             {
37                 console.writeline($"父 selfid={context.self.id}   myentity.id={myentity.id}");           
38 
39                 var cldprops = actor.fromproducer(() => new mychildactor());
40                 //第一个子actor
41                 var pidcld1 = context.spawn(cldprops);
42                 pidcld1.tell(new mychildentity { message = "1 message,myentity.id=" + myentity.id });
43                 //第二个子actor
44                 var pidcld2 = context.spawnprefix(cldprops, "gswcld");
45                 pidcld2.tell(new mychildentity { message = "2 message,myentity.id=" + myentity.id });
46                 //第三个子actor
47                 var pidcld3 = context.spawnnamed(cldprops, "gswcldpid");
48                 pidcld3.tell(new mychildentity { id = 3, message = "3 message,myentity.id=" + myentity.id });
49             }
50             return actor.done;
51         }
52     }
53     public class mychildactor : iactor
54     {
55         public task receiveasync(icontext context)
56         {
57             if (context.message is mychildentity mychildentity)
58             {              
59                 console.writeline($"子    selfid={context.self.id}     message={mychildentity.message}");          
60             }
61             return actor.done;
62         }
63     }
64     public class myentity
65     {
66         public int id { get; set; }
67     }
68     public class mychildentity
69     {
70         public string message { get; set; }
71         public int id { get; set; }
72     }
73 }

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：