Add udev notification support for connecting/disconnecting devices

1 files changed, 81 insertions, 0 deletions

diff --git a/daemon/src/device_connection.h b/daemon/src/device_connection.h
new file mode 100644
index 0000000..17e354d
--- /dev/null
+++ b/daemon/src/device_connection.h
@@ -0,0 +1,81 @@
+#pragma once
+
+#include "types.h"
+#include "submitter.h"
+#include "sender.h"
+
+#include <rtmidi/RtMidi.h>
+
+#include <string>
+
+namespace midi_router
+{
+
+struct Device_Connection : public Sender
+{
+    Device_Connection(Device_Id const & source_id, std::string const & device_name, Submitter & submitter, RtMidiIn::RtMidiCallback callback):
+        source_id(source_id),
+        device_name(device_name),
+        submitter(submitter) 
+    {
+        midi_in.setCallback(callback, this);
+        midi_in.ignoreTypes(true, false, true);
+    }
+
+    Device_Id const & source_id;
+    std::string const & device_name;
+    Submitter & submitter;
+    RtMidiIn midi_in {};
+    RtMidiOut midi_out {};
+
+    void
+    send(std::vector<std::uint8_t> const & payload) override
+    {
+        midi_out.sendMessage(&payload);
+    }
+
+    std::string
+    get_id() const override
+    {
+        return source_id;
+    }
+
+    void
+    open()
+    {
+        if (!open_port(midi_in, device_name))
+        {
+            std::cerr << "Input port not found for device " << device_name << "\n";
+        }
+
+        if (!open_port(midi_out, device_name))
+        {
+            std::cerr << "Output port not found for device " << device_name << "\n";
+        }
+    }
+
+    void
+    close()
+    {
+        midi_in.closePort();
+        midi_out.closePort();
+    }
+
+private:
+    bool 
+    open_port(RtMidi & midi, std::string const & name)
+    {
+        for (std::size_t i = 0; i < midi.getPortCount(); ++i)
+        {
+            if (midi.getPortName(i).contains(name))
+            {
+                midi.openPort(i);
+                return true;
+            }
+        }
+        return false;
+    }
+};
+
+} // namespace midi_router
+