47 lines
765 B
Go
47 lines
765 B
Go
package lucifer3
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import (
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"sync/atomic"
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)
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type Service interface {
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Active() bool
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HandleEvent(bus *EventBus, event Event)
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}
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type ActiveService interface {
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HandleCommand(bus *EventBus, command Command)
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}
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type ServiceCommon struct {
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inactive uint32
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}
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func (s *ServiceCommon) Active() bool {
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return atomic.LoadUint32(&s.inactive) == 0
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}
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func (s *ServiceCommon) markInactive() {
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atomic.StoreUint32(&s.inactive, 1)
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}
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type callbackService struct {
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ServiceCommon
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cb func(event Event) bool
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}
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func (c *callbackService) HandleEvent(_ *EventBus, event Event) {
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if !c.cb(event) {
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c.markInactive()
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}
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}
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func newCallbackService(cb func(event Event) bool) Service {
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return &callbackService{
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ServiceCommon: ServiceCommon{
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inactive: 0,
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},
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cb: cb,
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}
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}
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