low level sync stuff

src/solanaceae/crdtnotes/crdtnotes_contact_sync_model.hpp

@@ -0,0 +1,50 @@
+#pragma once
+
+#include "./crdtnotes.hpp"
+
+#include <solanaceae/contact/contact_model3.hpp>
+
+// send api
+struct CRDTNotesContactSyncModelI {
+	virtual ~CRDTNotesContactSyncModelI(void) {}
+
+	// gossip
+	public:
+		// notify of doc existing
+		virtual void SendGossip(
+			Contact3Handle c,
+			const CRDTNotes::DocID& doc_id
+		) = 0;
+
+		virtual void SendGossip(
+			Contact3Handle c,
+			const CRDTNotes::DocID& doc_id,
+			const std::vector<CRDTNotes::Frontier>& selected_frontier
+		) = 0;
+
+	// fetch
+	public:
+		// causes the other peer to send gossip with all known frontiers (on cool down)
+		virtual void SendFetchCompleteFrontier(
+			Contact3Handle c,
+			const CRDTNotes::DocID& doc_id
+		) = 0;
+
+		// action range request
+		virtual void SendFetchOps(
+			Contact3Handle c,
+			const CRDTNotes::DocID& doc_id,
+			const CRDTNotes::CRDTAgent& agent,
+			const uint64_t seq_from,
+			const uint64_t seq_to
+		) = 0;
+
+	public: // ops response
+		virtual void SendOps(
+			Contact3Handle c,
+			const CRDTNotes::DocID& doc_id,
+			// TODO: optimize this
+			const std::vector<CRDTNotes::Doc::Op>&
+		) = 0;
+};
+