1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
package suture
// sum type pattern for type-safe message passing; see
// http://www.jerf.org/iri/post/2917
type supervisorMessage interface {
isSupervisorMessage()
}
type listServices struct {
c chan []Service
}
func (ls listServices) isSupervisorMessage() {}
type removeService struct {
id serviceID
notification chan struct{}
}
func (rs removeService) isSupervisorMessage() {}
func (s *Supervisor) sync() {
s.control <- syncSupervisor{}
}
type syncSupervisor struct {
}
func (ss syncSupervisor) isSupervisorMessage() {}
func (s *Supervisor) fail(id serviceID, panicMsg string, stacktrace []byte) {
s.control <- serviceFailed{id, panicMsg, stacktrace}
}
type serviceFailed struct {
id serviceID
panicMsg string
stacktrace []byte
}
func (sf serviceFailed) isSupervisorMessage() {}
func (s *Supervisor) serviceEnded(id serviceID, err error) {
s.sendControl(serviceEnded{id, err})
}
type serviceEnded struct {
id serviceID
err error
}
func (s serviceEnded) isSupervisorMessage() {}
// added by the Add() method
type addService struct {
service Service
name string
response chan serviceID
}
func (as addService) isSupervisorMessage() {}
type stopSupervisor struct {
done chan UnstoppedServiceReport
}
func (ss stopSupervisor) isSupervisorMessage() {}
func (s *Supervisor) panic() {
s.control <- panicSupervisor{}
}
type panicSupervisor struct {
}
func (ps panicSupervisor) isSupervisorMessage() {}
|
