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package suture
import (
"context"
)
type DeprecatedService interface {
Serve()
Stop()
}
// AsService converts old-style suture service to a new style suture service.
func AsService(service DeprecatedService) Service {
return &serviceShim{service: service}
}
type serviceShim struct {
service DeprecatedService
}
func (s *serviceShim) Serve(ctx context.Context) error {
done := make(chan struct{})
go func() {
s.service.Serve()
close(done)
}()
select {
case <-done:
// If the service stops by itself (done closes), return straight away, there is no error, and we don't need
// to wait for the context.
return nil
case <-ctx.Done():
// If the context is closed, stop the service, then wait for it's termination and return the error from the
// context.
s.service.Stop()
<-done
return ctx.Err()
}
}
|
