1 files changed, 110 insertions, 0 deletions
diff --git a/boot/efi/status.h b/boot/efi/status.h
new file mode 100644
index 0000000..bcb6b96
--- /dev/null
+++ b/boot/efi/status.h
@@ -0,0 +1,110 @@
+#pragma once
+
+#include <cstddef>
+#include <limits>
+#include <type_traits>
+
+namespace Efi
+{
+	class Status
+	{
+		using size_t = std::size_t;
+		using ssize_t = std::make_signed_t<size_t>;
+
+		size_t m_Value;
+
+		constexpr Status(size_t value)
+			: m_Value(value)
+		{
+		}
+
+		constexpr bool IsError() const
+		{
+			return static_cast<ssize_t>(m_Value) < 0;
+		}
+
+		constexpr bool IsWarning() const
+		{
+			return m_Value > 0;
+		}
+
+		constexpr bool IsSuccess() const
+		{
+			return m_Value == 0;
+		}
+
+		constexpr static Status ErrorStatus(size_t code)
+		{
+			auto errorBit = std::numeric_limits<ssize_t>::min();
+			return Status(static_cast<size_t>(errorBit) | code); 
+		}
+
+		constexpr static Status WarningStatus(size_t code)
+		{
+			return Status(code);
+		}
+
+		public:
+
+		operator size_t() const
+		{
+			return m_Value;
+		}
+
+		static const Status Success;
+
+		class Warning
+		{
+			public:
+
+			static const Status UnknownGlyph;
+			static const Status DeleteFailure;
+			static const Status WriteFailure;
+			static const Status BufferTooSmall;
+			static const Status StaleData;
+			static const Status FileSystem;
+			static const Status ResetRequired;
+		};
+
+		class Error
+		{
+			public:
+
+			static const Status LoadError;
+			static const Status InvalidParameter;
+			static const Status Unsupported;
+			static const Status BadBufferSize;
+			static const Status BufferTooSmall;
+			static const Status NotReady;
+			static const Status DeviceError;
+			static const Status WriteProtected;
+			static const Status OutOfResources;
+			static const Status VolumeCorrupted;
+			static const Status VolumeFull;
+			static const Status NoMedia;
+			static const Status MediaChanged;
+			static const Status NotFound;
+			static const Status AccessDenied;
+			static const Status NoResponse;
+			static const Status NoMapping;
+			static const Status Timeout;
+			static const Status NotStarted;
+			static const Status AlreadyStarted;
+			static const Status Aborted;
+			static const Status IcmpError;
+			static const Status TftpError;
+			static const Status ProtocolError;
+			static const Status IncompatibleVersion;
+			static const Status SecurityViolation;
+			static const Status CrcError;
+			static const Status EndOfMedia;
+			static const Status EndOfFile;
+			static const Status InvalidLanguage;
+			static const Status CompromisedData;
+			static const Status IpAddressConflict;
+			static const Status HttpError;
+		};
+
+	};
+}
+