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pid对象是代表actor对象的进程，是能过actor.spawn(props)获取的；它有什么成员呢？既然代理actor，首先有一个id，标识自己是谁，actor在spawn时可以命名这个id，否则会自动生成。还有三种向邮箱发消息的方法，tell()，request()，requestasync()，还有一个发送系统消息(started,stoping,stoped等)方法sendsystemmessage()，还有一个停止的方法stop()。
我要评论 1 using proto;
2 using system;
3 using system.threading;
4 using system.threading.tasks;
5
6 namespace p004_pid
7 {
8 class program
9 {
10 static void main(string[] args)
11 {
12 var props = actor.fromproducer(() => new myactor());
13 var pid = actor.spawn(props);
14 while (true)
15 {
16 console.writeline("**************************************");
17 console.writeline("1、单向请求tell 2、单向请求request 3、双向请求requestasync");
18 switch (console.readline())
19 {
20 case "1":
21 console.writeline("单向请求开始");
22 pid.tell(new request { name = "单向请求 tell", requesttype = "one-way", time = datetime.now });
23 break;
24 case "2":
25 console.writeline("单向请求开始");
26 //无法接回应签，与官网说法不一
27 pid.request(new request { name = "单向请求 request", requesttype = "two-way-1", time = datetime.now }, pid);
28
29 break;
30 case "3":
31 console.writeline("双向请求开始");
32 var response = pid.requestasync<response>(new request { name = "双向请求 requestasync", requesttype = "two-way-2", time = datetime.now }).result;
33 console.writeline(response.time + ":" + response.name);
34 break;
35 }
36 thread.sleep(2000);
37 }
38 }
39 }
40
41 public class myactor : iactor
42 {
43 public task receiveasync(icontext context)
44 {
45
46 if (context.message is request request)
47 {
48 switch (request.requesttype)
49 {
50 case "one-way"://context.sender为null
51 console.writeline("接收到：" + request.requesttype + "," + request.time + ":" + request.name);
52 break;
53 case "two-way-1"://context.sender= context.self为自己
54 console.writeline("接收到：" + request.requesttype + "," + request.time + ":" + request.name);
55 context.respond(new response() { time = datetime.now, name = "服务端应答 two-way-1" });
56 break;
57 case "two-way-2"://context.sender!= context.self为新实例
58 console.writeline("接收到：" + request.requesttype + "," + request.time + ":" + request.name);
59 context.respond(new response() { time = datetime.now, name = "服务端应答 two-way-2" });
60 break;
61 }
62 }
63 return actor.done;
64 }
65 }
66
67 public class request
68 {
69 public string name
70 { get; set; }
71 public string requesttype
72 { get; set; }
73 public datetime time
74 { get; set; }
75 }
76
77 public class response
78 {
79 public string name
80 { get; set; }
81 public datetime time
82 { get; set; }
83 }
84 }
actor中的receive接到消息后，context是中有两个pid对象，一个self，一个sender，tell方法到达后，sender对象为空；request到达后，sender=self；而requestasync则sender,self都有对象，但不相同，这是一个区别。再有就是tell和request都是单向调用（我实测与官方文档说明有出入），requestasync是可以有返回值的，详见代码，如下是运行结果：
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