syncthing/vendor/github.com/thejerf/suture/messages.go

93 lines
1.7 KiB
Go
Raw Normal View History

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
}
func (rs removeService) isSupervisorMessage() {}
func (s *Supervisor) sync() {
s.control <- syncSupervisor{}
}
type syncSupervisor struct {
}
func (ss syncSupervisor) isSupervisorMessage() {}
func (s *Supervisor) fail(id serviceID, err interface{}, stacktrace []byte) {
s.control <- serviceFailed{id, err, stacktrace}
}
type serviceFailed struct {
id serviceID
err interface{}
stacktrace []byte
}
func (sf serviceFailed) isSupervisorMessage() {}
func (s *Supervisor) serviceEnded(id serviceID) {
s.sendControl(serviceEnded{id})
}
type serviceEnded struct {
id serviceID
}
func (s serviceEnded) isSupervisorMessage() {}
// added by the Add() method
type addService struct {
service Service
name string
response chan serviceID
}
func (as addService) isSupervisorMessage() {}
// Stop stops the Supervisor.
//
// This function will not return until either all Services have stopped, or
// they timeout after the timeout value given to the Supervisor at creation.
func (s *Supervisor) Stop() {
done := make(chan struct{})
if s.sendControl(stopSupervisor{done}) {
<-done
}
}
type stopSupervisor struct {
done chan struct{}
}
func (ss stopSupervisor) isSupervisorMessage() {}
func (s *Supervisor) panic() {
s.control <- panicSupervisor{}
}
type serviceTerminated struct {
id serviceID
}
func (st serviceTerminated) isSupervisorMessage() {}
type panicSupervisor struct {
}
func (ps panicSupervisor) isSupervisorMessage() {}