compatybility with old C++ on macos

musique/main.cc

@@ -167,7 +167,8 @@ struct Runner
 	midi::Serial_Midi midi;
 	Interpreter interpreter;
 	std::shared_ptr<serialport::State> serial_state;
-	std::optional<std::jthread> serial_event_loop;
+	std::thread serial_event_loop;
+	std::atomic<bool> serial_event_loop_stop = false;
 
 	/// Setup interpreter and midi connection with given port
 	explicit Runner(std::optional<unsigned> output_port)
@@ -183,8 +184,8 @@ struct Runner
 		midi.serialport = serial_state;
 		serialport::initialize();
 
-		serial_event_loop = std::jthread([this](std::stop_token token) mutable{
-			serialport::event_loop(token, *serial_state);
+		serial_event_loop = std::thread([this]() mutable {
+			serialport::event_loop(serial_event_loop_stop, *serial_state);
 		});
 
 		interpreter.midi_connection = &midi;
@@ -209,6 +210,13 @@ struct Runner
 	Runner& operator=(Runner const&) = delete;
 	Runner& operator=(Runner &&) = delete;
 
+	~Runner() {
+		serial_event_loop_stop = true;
+		if (serial_event_loop.joinable()) {
+			serial_event_loop.join();
+		}
+	}
+
 	/// Consider given input file as new definition of parametless function
 	///
 	/// Useful for deffering execution of files to the point when all configuration of midi devices

musique/serialport/serialport.cc

@@ -38,9 +38,9 @@ namespace serialport{
         return 8;
     }
 
-    void event_loop(std::stop_token token, State &state)
+    void event_loop(std::atomic<bool> &stop, State &state)
     {
-        while(!token.stop_requested()){
+        while(!stop){
             try {
                 /// Search for the right device
                 auto const ports = serial::list_ports();

musique/serialport/serialport.hh

@@ -3,7 +3,6 @@
 
 #include <string>
 #include <serial/serial.h>
-#include <stop_token>
 #include <memory>
 #include <array>
 #include <atomic>
@@ -26,7 +25,7 @@ namespace serialport{
     };
 
     void initialize();
-    void event_loop(std::stop_token token, State &state);
+    void event_loop(std::atomic<bool> &stop, State &state);
     std::uint8_t get_byte();
 }