gadgets

type Heights ¶

type Heights struct {
	events.Noop
	// contains filtered or unexported fields
}

Heights is a protocol events consumer that provides an interface to subscribe to callbacks when chain state reaches a particular height.

func NewHeights() *Heights

func (g *Heights) BlockFinalized(block *flow.Header)

func (g *Heights) OnHeight(height uint64, callback func())

type IdentityDeltas ¶ added in v0.12.0

type IdentityDeltas struct {
	events.Noop
	// contains filtered or unexported fields
}

IdentityDeltas is a protocol events consumer that provides an interface to subscribe to callbacks any time an identity table change (or possible change) is finalized.

TODO(EFM, #6123) add slashing/ejection events here once implemented TODO(EFM, #6123): Consider consolidating this with ProtocolStateIDCache

func NewIdentityDeltas(cb func()) *IdentityDeltas

func (g *IdentityDeltas) EpochCommittedPhaseStarted(_ uint64, _ *flow.Header)

func (g *IdentityDeltas) EpochSetupPhaseStarted(_ uint64, _ *flow.Header)

func (g *IdentityDeltas) EpochTransition(_ uint64, _ *flow.Header)

type Views ¶ added in v0.20.0

type Views struct {
	sync.Mutex
	events.Noop
	// contains filtered or unexported fields
}

Views is a protocol events consumer that provides an interface to subscribe to callbacks when consensus reaches a particular view. When a callback is registered for a view, it will be invoked when the first block with block.View >= V is finalized. Callbacks for earlier views are executed before callbacks for later views, and callbacks for the same view are executed on a FIFO basis.

func NewViews() *Views

func (v *Views) BlockFinalized(block *flow.Header)

func (v *Views) OnView(view uint64, callback events.OnViewCallback)