Make the save and load buttons in the MIDI mapping edit dialog work.

[nageru] / midi_mapper.h

diff --git a/midi_mapper.h b/midi_mapper.h
index 2b59b9ff53428cb1a02656049313014ee04548b4..357666d5a1fb89eea2f02a6267ab0b973d87e0a1 100644 (file)
--- a/midi_mapper.h
+++ b/midi_mapper.h
@@ -11,6 +11,7 @@
 #include <atomic>
 #include <functional>
 #include <memory>
+#include <mutex>
 #include <string>
 #include <thread>
 
@@ -46,7 +47,7 @@ public:
        virtual ~MIDIMapper();
        void set_midi_mapping(const MIDIMappingProto &new_mapping);
        void start_thread();
-       const MIDIMappingProto &get_current_mapping() const { return *mapping_proto; }
+       const MIDIMappingProto &get_current_mapping() const;
 
 private:
        void thread_func();
@@ -60,13 +61,15 @@ private:
        std::atomic<bool> should_quit{false};
        int should_quit_fd;
 
-       std::unique_ptr<MIDIMappingProto> mapping_proto;
-       int num_controller_banks;
-       int current_controller_bank = 0;
+       mutable std::mutex mapping_mu;
+       std::unique_ptr<MIDIMappingProto> mapping_proto;  // Under <mapping_mu>.
+       int num_controller_banks;  // Under <mapping_mu>.
+       std::atomic<int> current_controller_bank{0};
 
        std::thread midi_thread;
 };
 
 bool load_midi_mapping_from_file(const std::string &filename, MIDIMappingProto *new_mapping);
+bool save_midi_mapping_to_file(const MIDIMappingProto &mapping_proto, const std::string &filename);
 
 #endif  // !defined(_MIDI_MAPPER_H)