Prepare fuzzing engine

src/fuzzing-engine/input_generator.hpp

@@ -0,0 +1,38 @@
+#pragma once
+#include <mutex>
+#include <vector>
+#include <optional>
+#include <functional>
+
+#include "random_generator.hpp"
+
+namespace fuzzer
+{
+	using input_score = uint64_t;
+	using input_handler = input_score(std::span<const uint8_t>);
+
+	struct input_entry
+	{
+		std::vector<uint8_t> data{};
+		input_score score{};
+	};
+
+	class input_generator
+	{
+	public:
+		input_generator();
+
+		void access_input(const std::function<input_handler>& handler);
+
+	private:
+		std::mutex mutex_{};
+		random_generator rng{};
+
+		std::vector<input_entry> top_scorer_{};
+		input_score lowest_score{0};
+
+		std::vector<uint8_t> generate_next_input();
+
+		void store_input_entry(input_entry entry);
+	};
+}