Discovery Neo Oclib

daemons/node/common/common_heartbeat.go

@@ -66,6 +66,10 @@ type Heartbeat struct {
 	// MembershipEvents carries SWIM events piggybacked on this heartbeat.
 	// Events are forwarded infection-style until HopsLeft reaches 0.
 	MembershipEvents []MemberEvent `json:"membership_events,omitempty"`
+	// PendingContact lists peer IDs for which this node has undelivered critical
+	// DTN entries.  Indexers maintain an inverted index so those peers can
+	// discover who is waiting for them when they reconnect.
+	PendingContact []string `json:"pending_contact,omitempty"`
 }
 
 // SearchPeerRequest is sent by a node to an indexer via ProtocolSearchPeer.
@@ -134,6 +138,10 @@ type HeartbeatResponse struct {
 	// MembershipEvents carries SWIM events piggybacked on this response.
 	// The node should forward them to its other indexers (infection-style).
 	MembershipEvents []MemberEvent `json:"membership_events,omitempty"`
+	// PendingCallers lists peer IDs that have undelivered critical DTN messages
+	// for the receiving node, as recorded by this indexer.  On receipt the node
+	// should initiate contact with each caller so it can flush its DTN cache.
+	PendingCallers []string `json:"pending_callers,omitempty"`
 }
 
 // ComputeIndexerScore computes a composite quality score [0, 100] for the connecting peer.