types

package

v0.0.5 Latest Latest Go to latest Published: Dec 31, 2021 License: MIT Imports: 4 Imported by: 0

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type HeadBroadcaster interface {
	service.Service
	HeadTrackable
	Subscribe(callback HeadTrackable) (unsubscribe func())
}

HeadBroadcaster is the external interface of headBroadcaster

type HeadBroadcasterRegistry interface {
	Subscribe(callback HeadTrackable) (unsubscribe func())
}

type HeadTrackable interface {
	Connect(head *models.Head) error
	OnNewLongestChain(ctx context.Context, head models.Head)
}

HeadTrackable represents any object that wishes to respond to ethereum events, after being subscribed to HeadBroadcaster

type HeadTrackableCallback struct {
	OnConnect func() error
}

HeadTrackableCallback is a simple wrapper around an On Connect callback

func (c *HeadTrackableCallback) Connect(*models.Head) error

func (c *HeadTrackableCallback) OnNewLongestChain(context.Context, models.Head)

type Tracker interface {
	HighestSeenHeadFromDB() (*models.Head, error)
	Start() error
	Stop() error
	SetLogger(logger *logger.Logger)
}