fortuna: std::atomic<bool> continue_running

fortuna.h

@@ -8,8 +8,10 @@
 #include <fmt/core.h>
 
 #include <array>
+#include <atomic>
 #include <cassert>
 #include <chrono>
+#include <exception>
 #include <latch>
 #include <memory>
 #include <mutex>
@@ -84,6 +86,17 @@ public:
 
 	auto urandom_entropy_src_service() -> void;
 
+	auto stop_running() -> int {
+		try {
+			fmt::print("[i] fortuna: received the stop request...\n");
+			this->continue_running.store(false);
+		}
+		catch (std::exception& e) {
+			throw;
+		}
+		return 0;
+	}
+
 	// PRNG state
 	class R_state {
 		friend fortuna::Fortuna;
@@ -118,6 +131,7 @@ public:
 
 	std::latch sync_point{1}; // wait for init before spawning the threads
 	std::latch die_point{2}; // wait for service threads to die
+	std::atomic<bool> continue_running{true};
 	std::once_flag PRNG_init;
 
 }; // class Fortuna