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   std::queue<T> queue;
   std::mutex mtx;
   std::condition_variable cv;
   std::function<T(T)> process_fn;
   bool updated = false;

   TunnelStage(std::function<T(T)> fn) : process_fn(fn) {}

   void updateFunction(std::function<T(T)> new_fn) {
       std::lock_guard<std::mutex> lock(mtx);
       process_fn = new_fn;
       updated = true;
       cv.notify_all();
   }

   void push(T data) {
       std::lock_guard<std::mutex> lock(mtx);
       queue.push(data);
       cv.notify_one();
   }

   T run(T input) {
       std::unique_lock<std::mutex> lock(mtx);
       cv.wait(lock, [this]{ return!queue.empty() || updated; });
       updated = false;
       return process_fn(input);
   }

#include <queue> #include <mutex> #include <condition_variable> #include <functional> // Pipeline stage genérico template<typename T> class TunnelStage { std::queue<T> queue; std::mutex mtx; std::condition_variable cv; std::function<T(T)> process_fn; bool updated = false; public: TunnelStage(std::function<T(T)> fn) : process_fn(fn) {} void updateFunction(std::function<T(T)> new_fn) { std::lock_guard<std::mutex> lock(mtx); process_fn = new_fn; updated = true; cv.notify_all(); } void push(T data) { std::lock_guard<std::mutex> lock(mtx); queue.push(data); cv.notify_one(); } T run(T input) { std::unique_lock<std::mutex> lock(mtx); cv.wait(lock, [this]{ return!queue.empty() || updated; }); updated = false; return process_fn(input); } }; // Uso: actualizar lógica del túnel en runtime TunnelStage<int> stage1([](int x){ return x * 2; }); // En otro thread, para hacer update sin parar pipeline: stage1.updateFunction([](int x){ return x * 3 + 1; }); // nueva lógica