heartbeat

package

v1.16.9 Latest Latest Go to latest Published: Mar 18, 2026 License: MIT Imports: 7 Imported by: 0

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type Heartbeat struct {
	// contains filtered or unexported fields
}

Activity that emits periodic heartbeats and exposes a simple liveness RPC.

func New(log gethlog.Logger, interval time.Duration) *Heartbeat

New creates a new Heartbeat activity.

func (h *Heartbeat) Name() string

func (h *Heartbeat) RPCNamespace() string

RPCNamespace returns the JSON-RPC namespace for this activity.

func (h *Heartbeat) RPCService() interface{}

RPCService returns the service object whose exported methods are exposed in RPC.

func (h *Heartbeat) Reset(chainID eth.ChainID, timestamp uint64, invalidatedBlock eth.BlockRef)

Reset is a no-op for heartbeat - it has no chain-specific state.

func (h *Heartbeat) Start(ctx context.Context) error

Start begins the periodic logging loop.

func (h *Heartbeat) Stop(ctx context.Context) error

Stop stops the heartbeat loop.