Initial QSfera import

Server/vendor/github.com/thejerf/suture/v4/messages.go

@@ -0,0 +1,83 @@
+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() {
+	select {
+	case s.control <- syncSupervisor{}:
+	case <-s.liveness:
+	}
+}
+
+type syncSupervisor struct {
+}
+
+func (ss syncSupervisor) isSupervisorMessage() {}
+
+func (s *Supervisor) fail(id serviceID, panicVal interface{}, stacktrace []byte) {
+	select {
+	case s.control <- serviceFailed{id, panicVal, stacktrace}:
+	case <-s.liveness:
+	}
+}
+
+type serviceFailed struct {
+	id         serviceID
+	panicVal   interface{}
+	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() {}