integrating the existing state of TON Storage / TON Payments / CPS Fift development branches

rldp2/Ack.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "td/utils/int_types.h"
+
+namespace ton {
+namespace rldp2 {
+// Helper for receiver
+// Also this information is sent to the sender as an acknowlegement.
+struct Ack {
+  td::uint32 max_seqno{0};
+  td::uint32 received_mask{0};
+  td::uint32 received_count{0};
+
+  // returns true if we know that packet is new and hasn't been received yet
+  bool on_got_packet(td::uint32 seqno);
+};
+}  // namespace rldp2
+}  // namespace ton