daemon

type CleanupFunc func() error

type ConfigFunc func() ([]Server, []CleanupFunc, error)

type ConfigureFunc func() ([]srv.Server, []CleanupFunc, error)

type LingeringServer interface {
	Server
	// Shutdown will wait for all activity to stop until the context
	// is canceled at which point it will exit with an error if activity has
	// not stopped.
	Shutdown(context.Context) error
	// Close() will force all activity to stop.
	Close() error
}

type ListenerGroup []ListenerSpec

type ListenerSpec struct {
	Net string

	Addr string
	// ListenerFdName can be set to pick a named file descriptor as
	// Listener via LISTEN_FDNAMES
	// It is updated to contain the name of the chosen file descriptor
	// - if any
	ListenerFdName string

	// Extra sd.FileTest to apply to the listener inherited.
	ExtraFileTests []sd.FileTest

	// InheritOnly set to true requires the Listener to be inherited via
	// the environment and there will not be created a fresh Listener.
	InheritOnly bool

	// PrepareListener provides a callback to do last minute modifications of
	// the chosen listener. (like wrapping it in something else)
	// It will be called as a callback with the listener chosen before it's set.
	// The returned listener is set instead - wrapped in any TLS if
	// there's a TLSConfig set.
	PrepareListener func(net.Listener) net.Listener

	TLSConfig *tls.Config
}

type ListeningServer interface {
	Server
	// Listen will be called before Serve() is called to allow the server
	// to prepare for serving. It doesn't need to actually do network listening.
	// it's just an opportunity to get a pre-serve call.
	Listen() error
}

type LoggerFunc func(level int, message string)

type RunOption func(*runcfg)

type Server interface {
	// Serve will start serving until the context is canceled at which
	// point it will stop generating new activity and exit.
	Serve(context.Context) error
}