Device: Implement version handling

include/icsneo/device/device.h

@@ -15,6 +15,7 @@
 #include "icsneo/device/idevicesettings.h"
 #include "icsneo/device/nullsettings.h"
 #include "icsneo/device/devicetype.h"
+#include "icsneo/device/deviceversion.h"
 #include "icsneo/communication/communication.h"
 #include "icsneo/communication/packetizer.h"
 #include "icsneo/communication/encoder.h"
@@ -210,6 +211,11 @@ public:
 	NODISCARD("If the Lifetime is not held, disconnects will be immediately unsuppressed")
 	Lifetime suppressDisconnects();
 
+	/**
+	 * For use by extensions only. A more stable API will be provided in the future.
+	 */
+	const std::vector<optional<DeviceAppVersion>>& getVersions() const { return versions; }
+
 	/**
 	 * Some alternate communication protocols do not support DFU
 	 */
@@ -328,6 +334,7 @@ protected:
 private:
 	neodevice_t data;
 	std::shared_ptr<ResetStatusMessage> latestResetStatus;
+	std::vector<optional<DeviceAppVersion>> versions;
 
 	mutable std::mutex extensionsLock;
 	std::vector<std::shared_ptr<DeviceExtension>> extensions;

include/icsneo/device/deviceversion.h

@@ -0,0 +1,24 @@
+#ifndef __DEVICEVERSION_H_
+#define __DEVICEVERSION_H_
+
+#ifdef __cplusplus
+
+#include "icsneo/platform/optional.h"
+#include <cstdint>
+#include <array>
+
+namespace icsneo {
+
+struct DeviceAppVersion {
+	uint8_t major = 0;
+	uint8_t minor = 0;
+
+	bool operator!=(const DeviceAppVersion& rhs) const { return major != rhs.major || minor != rhs.minor; }
+};
+
+} // namespace icsneo
+
+
+#endif // __cplusplus
+
+#endif