after 2 weeks of porting over the ngc_ft1 code to solanaceae and rewriting the highlevel logic

(29 commits predate this)

solanaceae/ngc_ft1/rcv_buf.hpp

@@ -0,0 +1,35 @@
+#pragma once
+
+#include <vector>
+#include <map>
+#include <deque>
+#include <cstdint>
+
+struct RecvSequenceBuffer {
+	struct RSBEntry {
+		std::vector<uint8_t> data;
+	};
+
+	// sequence_id -> entry
+	std::map<uint16_t, RSBEntry> entries;
+
+	uint16_t next_seq_id {0};
+
+	// list of seq_ids to ack, this is seperate bc rsbentries are deleted once processed
+	std::deque<uint16_t> ack_seq_ids;
+
+	void erase(uint16_t seq);
+
+	// inflight chunks
+	size_t size(void) const;
+
+	void add(uint16_t seq_id, std::vector<uint8_t>&& data);
+
+	bool canPop(void) const;
+
+	std::vector<uint8_t> pop(void);
+
+	// for acking, might be bad since its front
+	std::vector<uint16_t> frontSeqIDs(size_t count = 5) const;
+};
+