Handling device errors through exceptions

Signed-off-by: Szczepan Zalega <szczepan@nitrokey.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/include/CommandFailedException.h b/include/CommandFailedException.h
new file mode 100644
index 0000000..3306f7b
--- /dev/null
+++ b/include/CommandFailedException.h
@@ -0,0 +1,27 @@
+//
+// Created by sz on 23.07.16.
+//
+
+#ifndef LIBNITROKEY_COMMANDFAILEDEXCEPTION_H
+#define LIBNITROKEY_COMMANDFAILEDEXCEPTION_H
+
+#include <exception>
+#include <cstdint>
+
+class CommandFailedException : public std::exception {
+public:
+    uint8_t last_command_code;
+    uint8_t last_command_status;
+
+    CommandFailedException(uint8_t last_command_code, uint8_t last_command_status) :
+            last_command_code(last_command_code),
+            last_command_status(last_command_status){}
+
+    virtual const char *what() const throw() {
+        return "Command execution has failed on device";
+    }
+
+};
+
+
+#endif //LIBNITROKEY_COMMANDFAILEDEXCEPTION_H