my.actor.system_msg source code

1 /**
2 Copyright: Copyright (c) 2021, Joakim Brännström. All rights reserved.
3 License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost Software License 1.0)
4 Author: Joakim Brännström (joakim.brannstrom@gmx.com)
5 */
6 module my.actor.system_msg;
7 
8 import my.actor.common : SystemError, ExitReason;
9 import my.actor.mailbox : WeakAddress;
10 import my.typecons : CopyCtor;
11 
12 /// Sent to all links when an actor is terminated.
13 struct ExitMsg {
14     /// The source of this message, i.e., the terminated actor.
15     WeakAddress source;
16 
17     /// The exit reason of the terminated actor.
18     SystemError reason;
19 }
20 
21 /// The system signals the actor to shutdown.
22 struct SystemExitMsg {
23     /// The systems exit reason of the terminated actor.
24     ExitReason reason;
25 }
26 
27 /// Sent to all actors monitoring an actor that is terminated.
28 struct DownMsg {
29     /// The source of this message, i.e., the terminated actor.
30     WeakAddress source;
31 
32     /// The exit reason of the terminated actor.
33     SystemError reason;
34 }
35 
36 struct ErrorMsg {
37     /// The source of this message, i.e., the terminated actor.
38     WeakAddress source;
39 
40     /// The exit reason of the terminated actor.
41     SystemError reason;
42 }
43 
44 // Incoming requests to link to the actor using this address.
45 struct MonitorRequest {
46     WeakAddress addr;
47 }
48 
49 // Request to remove `addr` as a monitor.
50 struct DemonitorRequest {
51     WeakAddress addr;
52 }
53 
54 // Incoming requests to link to the actor using this address.
55 struct LinkRequest {
56     WeakAddress addr;
57 }
58 
59 // Request to remove `addr` as a link.
60 struct UnlinkRequest {
61     WeakAddress addr;
62 }