Started work on database handling.

CMakeLists.txt

@@ -82,7 +82,7 @@ set(EHS_SOURCES
         include/ehs/ShdPtr.h
         include/ehs/WkPtr.h
 
-        src/database/DVar.cpp include/ehs/database/DVar.h
+        src/db/DbVarTmpl.cpp include/ehs/db/DbVarTmpl.h
 
         src/system/CPU.cpp include/ehs/system/CPU.h
         src/system/Thread.cpp include/ehs/system/Thread.h
@@ -162,6 +162,18 @@ set(EHS_SOURCES
         src/io/hid/Input.cpp include/ehs/io/hid/Input.h
         src/io/model/MdlCodec.cpp
         include/ehs/io/mdl/MdlCodec.h
+        include/ehs/io/UsbBase.h
+        src/io/UsbBase.cpp
+        include/ehs/io/Usb_LNX.h
+        src/io/Usb_LNX.cpp
+        include/ehs/db/DbType.h
+        src/db/DbType.cpp
+        include/ehs/db/DbTable.h
+        include/ehs/db/DbObject.h
+        include/ehs/db/DbVar.h
+        src/db/DbVar.cpp
+        include/ehs/db/Database.h
+        src/db/DbObject.cpp
 )
 
 if (IS_OS_WINDOWS)

include/ehs/Math.h

@@ -101,29 +101,73 @@ namespace ehs
 			return from * 57.295779513082320876798154814105;
 		}
 
+		template <typename T = float>
+		static T Exp(const T x)
+		{
+			T sum = 1;
+			T term = 1;
+
+			for (int n = 1; n <= 20; ++n)
+			{
+				term *= x / n;
+				sum += term;
+			}
+
+			return sum;
+		}
+
+		template <typename T = float>
+		static T Ln(T x)
+		{
+			if (x <= 0)
+				return -1;
+
+			T result = 0;
+
+			x = (x - 1) / (x + 1);
+
+			for (int i = 1; i <= 19; i += 2)
+				result += (1 / i) * Exp<T>(x * i);
+
+			return 2 * result;
+		}
+
 		/// A method for use of exponents.
 		/// @tparam T The data type to return;
 		/// @tparam I The data type to use as the exponent.
 		/// @param [in] from The value to use the exponent on.
 		/// @param [in] of The exponent.
 		/// @returns The result.
-		template<typename T = float, typename I = UInt_64>
-        static T Pow(const T from, const I of)
+		template<typename T = float, typename I = float>
+        static T Pow(const T base, const I exponent)
 		{
-            if (of < 0)
-            {
-                if (from == 0)
-                    return -0;
+			if (base == 0)
+				return 0;
 
-                return 1 / (from * Pow<T>(from, (-of) - 1));
+			if (exponent == 0)
+				return 1;
+
+			UInt_32 exponentIsInteger = exponent == (UInt_32)exponent;
+			UInt_32 baseIsNegative = base < 0;
+
+			if (baseIsNegative && exponentIsInteger)
+			{
+				T result = Exp<T>(exponent * Ln<T>(-base));
+				if (Mod((float)exponent, 2.0f) != 0)
+					result = -result;
+
+				return result;
+			}
+			else if (!baseIsNegative)
+				return Exp<T>(exponent * Ln<T>(base));
+
+			return 0;
 		}
 
-            if (of == 0)
-                return 1;
-            else if (of == 1)
-                return from;
-
-			return from * Pow<T>(from, of - 1);
+		template <typename T = float>
+		static T Log10(const T x)
+		{
+			return Ln<T>(x) / Ln<T>(10);
 		}
 
         static float Near(const float from);

include/ehs/Serializer.h

@@ -1078,8 +1078,8 @@ namespace ehs
 			bool sizeKnown = size;
 
 			if (!sizeKnown)
-				while (&data[offset + sizeof(T) * size])
-					size++;
+				while (((T*)&data[offset])[size])
+					++size;
 
             Str<T, O> result(size);
 
@@ -1090,14 +1090,14 @@ namespace ehs
 				else
 					for (N i = 0; i < size; ++i)
 						for (N b = 0; b < sizeof(T); ++b)
-							((Byte*)&result[i])[sizeof(T) - i - 1] = data[offset + sizeof(T) * i + b];
+							((Byte*)&result[i])[b] = data[offset + sizeof(T) * i + b];
 			}
 			else
 			{
 				if (endianness == Endianness::LE)
 					for (N i = 0; i < size; ++i)
 						for (N b = 0; b < sizeof(T); ++b)
-							((Byte*)&result[i])[sizeof(T) - i - 1] = data[offset + sizeof(T) * i + b];
+							((Byte*)&result[i])[b] = data[offset + sizeof(T) * i + b];
 				else
 					Util::Copy(&result[0], &data[offset], result.Size(true));
 			}

include/ehs/Types.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "ehs/system/OS.h"
+#include "ehs/system/Architecture.h"
 
 #define EHS_MAX_PATH 0x104
 #define EHS_UINT_8_MAX 0xFF
@@ -25,6 +26,12 @@
 #define EHS_LDOUBLE_MAX 1.79769e+308
 #define EHS_LDOUBLE_MIN 2.22507e-308
 
+#if defined(EHS_64_BIT)
+	#define EHS_SIZE_MAX 0xFFFFFFFFFFFFFFFF
+#elif defined(EHS_32_BIT)
+	#define EHS_SIZE_MAX 0xFFFFFFFF
+#endif
+
 #define EHS_INFINITE EHS_UINT_32_MAX
 
 namespace ehs
@@ -52,4 +59,10 @@ namespace ehs
 		typedef signed long SInt_64;
 		typedef long Int_64;
 	#endif
+
+	#if defined(EHS_64_BIT)
+		typedef UInt_64 Size;
+	#elif defined(EHS_32_BIT)
+		typedef UInt_32 Size;
+	#endif
 }

include/ehs/database/DVar.h

@@ -1,20 +0,0 @@
-#pragma once
-
-#include "ehs/EHS.h"
-#include "ehs/BaseObj.h"
-#include "ehs/Str.h"
-
-namespace ehs
-{
-	enum class DType : UInt_8
-	{
-	
-	};
-
-	class DVar : public BaseObj
-	{
-	private:
-		Str_8 id;
-		UInt_64 hashId;
-	};
-}

include/ehs/db/Database.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#include "ehs/Array.h"
+#include "DbTable.h"
+
+namespace ehs
+{
+	class Database
+	{
+	private:
+		UInt_64 hashId;
+		Str_8 id;
+		Array<DbTable> tables;
+
+	public:
+		Database();
+
+		Database(const Str_8& filePath);
+
+		UInt_64 GetHashId() const;
+
+		Str_8 GetId() const;
+
+		bool HasTable(UInt_64 hashId) const;
+
+		bool HasTable(Str_8& id) const;
+
+		bool CreateTable(Str_8 id);
+
+		DbTable* GetTable(UInt_64 hashId) const;
+
+		DbTable* GetTable(Str_8& id) const;
+
+		void Save();
+	};
+}

include/ehs/db/DbObject.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include "ehs/Array.h"
+#include "DbVar.h"
+
+namespace ehs
+{
+	class DbTable;
+
+	class DbObject
+	{
+	private:
+		friend class DbTable;
+
+		UInt_64 id;
+		Array<DbVar> vars;
+		bool loaded;
+		DbTable* parent;
+
+	public:
+		DbObject();
+
+		DbObject(DbObject&& obj) noexcept;
+
+		DbObject(const DbObject& obj);
+
+		DbObject& operator=(DbObject&& obj) noexcept;
+
+		DbObject& operator=(const DbObject& obj);
+
+		UInt_64 GetId();
+
+		bool HasVariable(UInt_64 hashId);
+
+		DbVar* GetVariable(UInt_64 hashId) const;
+
+		void Save();
+
+		void Load();
+
+		bool IsLoaded() const;
+
+		void Free();
+
+		DbTable* GetParent() const;
+	};
+}

include/ehs/db/DbTable.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#include "ehs/Version.h"
+#include "ehs/Array.h"
+#include "DbVarTmpl.h"
+#include "DbObject.h"
+
+namespace ehs
+{
+	class DbTable
+	{
+	private:
+		UInt_64 hashId;
+		Str_8 id;
+		Version version;
+		Array<DbVarTmpl> varTmpls;
+		Array<DbObject> objects;
+
+	public:
+		DbTable();
+
+		DbTable();
+
+		UInt_64 GetHashId() const;
+
+		Str_8 GetId() const;
+
+		Version GetVersion() const;
+
+		bool CreateVariable(Str_8 id, DbType type);
+
+		bool CreateVariable(Str_8 id, DbType type, UInt_64 size);
+
+		void Save();
+	};
+}

include/ehs/db/DbType.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "ehs/Types.h"
+
+namespace ehs
+{
+	enum class DbType : UInt_8
+	{
+		SINT_64,
+		UINT_64,
+		SINT_32,
+		UINT_32,
+		SINT_16,
+		UINT_16,
+		SINT_8,
+		UINT_8,
+		FLOAT,
+		DOUBLE,
+		BOOLEAN,
+		CHAR_32,
+		CHAR_16,
+		CHAR_8
+	};
+
+	constexpr UInt_8 DbTypeToSize(DbType type);
+}

include/ehs/db/DbVar.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#include "ehs/Types.h"
+
+namespace ehs
+{
+	class DbVar
+	{
+	private:
+		UInt_64 hashId;
+		UInt_64 size;
+		Byte* data;
+
+	public:
+		~DbVar();
+
+		DbVar();
+
+		DbVar(UInt_64 hashId, UInt_64 size, Byte* data);
+
+		DbVar(DbVar&& var) noexcept;
+
+		DbVar(const DbVar& var);
+
+		DbVar& operator=(DbVar&& var) noexcept;
+
+		DbVar& operator=(const DbVar& var);
+
+		explicit operator Byte*() const;
+
+		UInt_64 GetHashId() const;
+
+		UInt_64 GetSize() const;
+
+		Byte* GetData() const;
+	};
+}

include/ehs/db/DbVarTmpl.h

@@ -0,0 +1,45 @@
+#pragma once
+
+#include "DbType.h"
+#include "ehs/EHS.h"
+#include "ehs/BaseObj.h"
+#include "ehs/Str.h"
+
+namespace ehs
+{
+	class DbVarTmpl : public BaseObj
+	{
+	private:
+		UInt_64 hashId;
+		Str_8 id;
+		DbType type;
+		bool array;
+
+	public:
+		DbVarTmpl();
+
+		DbVarTmpl(Str_8 id, DbType type, bool array);
+
+		DbVarTmpl(DbVarTmpl&& varTmpl) noexcept;
+
+		DbVarTmpl(const DbVarTmpl& varTmpl);
+
+		DbVarTmpl& operator=(DbVarTmpl&& varTmpl) noexcept;
+
+		DbVarTmpl& operator=(const DbVarTmpl& varTmpl);
+
+		UInt_64 GetHashId() const;
+
+		void SetId(Str_8 newId);
+
+		Str_8 GetId() const;
+
+		void SetType(DbType newType);
+
+		DbType GetType() const;
+
+		void SetIsArray(bool value);
+
+		bool IsArray() const;
+	};
+}

include/ehs/io/UsbBase.h

@@ -0,0 +1,48 @@
+#pragma once
+
+#include "ehs/Types.h"
+
+namespace ehs
+{
+    class UsbBase
+    {
+    private:
+        UInt_32 bus;
+        UInt_32 address;
+
+    public:
+        virtual ~UsbBase() = default;
+
+        UsbBase();
+
+        UsbBase(UInt_32 bus, UInt_32 address);
+
+        UsbBase(UsbBase&& usb) noexcept;
+
+        UsbBase(const UsbBase& usb);
+
+        UsbBase& operator=(UsbBase&& usb) noexcept;
+
+        UsbBase& operator=(const UsbBase& usb);
+
+        virtual void Initialize() = 0;
+
+        virtual void Release() = 0;
+
+        virtual bool IsInitialized() const = 0;
+
+        virtual Size Send(const Byte* data, Size size) = 0;
+
+        void BulkSend(const Byte* data, Size size);
+
+        virtual Size Receive(Byte* data, Size size) = 0;
+
+        void BulkReceive(Byte** data, Size* size);
+
+        UInt_32 GetBus() const;
+
+        UInt_32 GetAddress() const;
+
+        bool IsValid() const;
+    };
+}

include/ehs/io/Usb_LNX.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include "UsbBase.h"
+#include "File.h"
+
+namespace ehs
+{
+    class Usb final : public UsbBase
+    {
+    private:
+        int hdl;
+
+    public:
+        ~Usb() override;
+
+        Usb();
+
+        Usb(UInt_32 bus, UInt_32 address);
+
+        Usb(Usb&& usb) noexcept;
+
+        Usb(const Usb& usb);
+
+        Usb& operator=(Usb&& usb) noexcept;
+
+        Usb& operator=(const Usb& usb);
+
+        void Initialize() override;
+
+        void Release() override;
+
+        bool IsInitialized() const override;
+    };
+}

include/ehs/system/Architecture.h

@@ -3,9 +3,11 @@
 #if defined(_M_AMD64) || defined(_M_X64) || defined(__x86_64__)
 	#define EHS_LITTLE_ENDIAN
 	#define EHS_ARCH_X64
+    #define EHS_64_BIT
 #elif defined(_M_ARM64) || defined(__aarch64__)
-#define EHS_LITTLE_ENDIAN
+    #define EHS_LITTLE_ENDIAN
     #define EHS_ARCH_ARM64
+    #define EHS_64_BIT
 #else
     #error Unsupported architecture.
 #endif

src/database/DVar.cpp

@@ -1,5 +0,0 @@
-#include "ehs/database/DVar.h"
-
-namespace ehs
-{
-}

src/db/DbObject.cpp

@@ -0,0 +1,98 @@
+#include "ehs/db/DbObject.h"
+
+namespace ehs
+{
+	DbObject::DbObject()
+		: id(0), loaded(false), parent(nullptr)
+	{
+	}
+
+	DbObject::DbObject(DbObject&& obj) noexcept
+		: id(obj.id), vars((Array<DbVar>&&)obj.vars), loaded(obj.loaded), parent(obj.parent)
+	{
+		obj.id = 0;
+		obj.loaded = false;
+		obj.parent = nullptr;
+	}
+
+	DbObject::DbObject(const DbObject& obj)
+		: id(obj.id), vars(obj.vars), loaded(obj.loaded), parent(obj.parent)
+	{
+	}
+
+	DbObject& DbObject::operator=(DbObject&& obj) noexcept
+	{
+		if (this == &obj)
+			return *this;
+
+		id = obj.id;
+		vars = (Array<DbVar>&&)obj.vars;
+		loaded = obj.loaded;
+		parent = obj.parent;
+
+		obj.id = 0;
+		obj.loaded = false;
+		obj.parent = nullptr;
+
+		return *this;
+	}
+
+	DbObject& DbObject::operator=(const DbObject& obj)
+	{
+		if (this == &obj)
+			return *this;
+
+		id = obj.id;
+		vars = obj.vars;
+		loaded = obj.loaded;
+		parent = obj.parent;
+
+		return *this;
+	}
+
+	UInt_64 DbObject::GetId()
+	{
+		return id;
+	}
+
+	bool DbObject::HasVariable(UInt_64 hashId)
+	{
+		for (UInt_64 i = 0; i < vars.Size(); ++i)
+			if (vars[i].GetHashId() == hashId)
+				return true;
+
+		return false;
+	}
+
+	DbVar* DbObject::GetVariable(UInt_64 hashId) const
+	{
+		for (UInt_64 i = 0; i < vars.Size(); ++i)
+			if (vars[i].GetHashId() == hashId)
+				return &vars[i];
+
+		return nullptr;
+	}
+
+	void DbObject::Save()
+	{
+	}
+
+	void DbObject::Load()
+	{
+	}
+
+	bool DbObject::IsLoaded() const
+	{
+		return loaded;
+	}
+
+	void DbObject::Free()
+	{
+		vars.Clear();
+	}
+
+	DbTable* DbObject::GetParent() const
+	{
+		return parent;
+	}
+}

src/db/DbType.cpp

@@ -0,0 +1,39 @@
+#include "ehs/db/DbType.h"
+
+namespace ehs
+{
+	constexpr UInt_8 DbTypeToSize(const DbType type)
+	{
+		switch (type)
+		{
+			case DbType::SINT_64:
+				return 8;
+			case DbType::UINT_64:
+				return 8;
+			case DbType::SINT_32:
+				return 4;
+			case DbType::UINT_32:
+				return 4;
+			case DbType::SINT_16:
+				return 2;
+			case DbType::UINT_16:
+				return 2;
+			case DbType::SINT_8:
+				return 1;
+			case DbType::UINT_8:
+				return 1;
+			case DbType::FLOAT:
+				return 4;
+			case DbType::DOUBLE:
+				return 8;
+			case DbType::BOOLEAN:
+				return 1;
+			case DbType::CHAR_32:
+				return 4;
+			case DbType::CHAR_16:
+				return 2;
+			case DbType::CHAR_8:
+				return 1;
+		}
+	}
+}

src/db/DbVar.cpp

@@ -0,0 +1,84 @@
+#include "ehs/db/DbVar.h"
+
+namespace ehs
+{
+	DbVar::~DbVar()
+	{
+		delete[] data;
+	}
+
+	DbVar::DbVar()
+		: hashId(0), size(0), data(nullptr)
+	{
+	}
+
+	DbVar::DbVar(UInt_64 hashId, UInt_64 size, Byte* data)
+		: hashId(hashId), size(size), data(data)
+	{
+	}
+
+	DbVar::DbVar(DbVar&& var) noexcept
+		: hashId(var.hashId), size(var.size), data(var.data)
+	{
+		var.hashId = 0;
+		var.size = 0;
+		var.data = nullptr;
+	}
+
+	DbVar::DbVar(const DbVar& var)
+		: hashId(0), size(0), data(nullptr)
+	{
+	}
+
+	DbVar& DbVar::operator=(DbVar&& var) noexcept
+	{
+		if (this == &var)
+			return *this;
+
+		delete[] data;
+
+		hashId = var.hashId;
+		size = var.size;
+		data = var.data;
+
+		var.hashId = 0;
+		var.size = 0;
+		var.data = nullptr;
+
+		return *this;
+	}
+
+	DbVar& DbVar::operator=(const DbVar& var)
+	{
+		if (this == &var)
+			return *this;
+
+		delete[] data;
+
+		hashId = 0;
+		size = 0;
+		data = nullptr;
+
+		return *this;
+	}
+
+	DbVar::operator Byte*() const
+	{
+		return data;
+	}
+
+	UInt_64 DbVar::GetHashId() const
+	{
+		return hashId;
+	}
+
+	UInt_64 DbVar::GetSize() const
+	{
+		return size;
+	}
+
+	Byte* DbVar::GetData() const
+	{
+		return data;
+	}
+}

src/db/DbVarTmpl.cpp

@@ -0,0 +1,93 @@
+#include "ehs/db/DbVarTmpl.h"
+
+namespace ehs
+{
+	DbVarTmpl::DbVarTmpl()
+		: hashId(0), type(DbType::SINT_64), array(false)
+	{
+	}
+
+	DbVarTmpl::DbVarTmpl(Str_8 id, DbType type, bool array)
+		: hashId(id.Hash_64()), id((Str_8&&)id), type(type), array(array)
+	{
+	}
+
+	DbVarTmpl::DbVarTmpl(DbVarTmpl&& varTmpl) noexcept
+		: hashId(varTmpl.hashId), id((Str_8&&)varTmpl.id), type(varTmpl.type), array(varTmpl.array)
+	{
+		varTmpl.hashId = 0;
+		varTmpl.type = DbType::SINT_64;
+		varTmpl.array = false;
+	}
+
+	DbVarTmpl::DbVarTmpl(const DbVarTmpl& varTmpl)
+		: hashId(varTmpl.hashId), id(varTmpl.id), type(varTmpl.type), array(varTmpl.array)
+	{
+	}
+
+	DbVarTmpl& DbVarTmpl::operator=(DbVarTmpl&& varTmpl) noexcept
+	{
+		if (this == &varTmpl)
+			return *this;
+
+		hashId = varTmpl.hashId;
+		id = (Str_8&&)varTmpl.id;
+		type = varTmpl.type;
+		array = varTmpl.array;
+
+		varTmpl.hashId = 0;
+		varTmpl.type = DbType::SINT_64;
+		varTmpl.array = false;
+
+		return *this;
+	}
+
+	DbVarTmpl& DbVarTmpl::operator=(const DbVarTmpl& varTmpl)
+	{
+		if (this == &varTmpl)
+			return *this;
+
+		hashId = varTmpl.hashId;
+		id = varTmpl.id;
+		type = varTmpl.type;
+		array = varTmpl.array;
+
+		return *this;
+	}
+
+	UInt_64 DbVarTmpl::GetHashId() const
+	{
+		return hashId;
+	}
+
+	void DbVarTmpl::SetId(Str_8 newId)
+	{
+		hashId = newId.Hash_64();
+		id = (Str_8&&)newId;
+	}
+
+	Str_8 DbVarTmpl::GetId() const
+	{
+		return id;
+	}
+
+	void DbVarTmpl::SetType(DbType newType)
+	{
+		type = newType;
+	}
+
+	DbType DbVarTmpl::GetType() const
+	{
+		return type;
+	}
+
+	void DbVarTmpl::SetIsArray(bool value)
+	{
+		array = value;
+	}
+
+	bool DbVarTmpl::IsArray() const
+	{
+		return array;
+	}
+}

src/io/UsbBase.cpp

@@ -0,0 +1,97 @@
+#include "ehs/io/UsbBase.h"
+#include "ehs/Util.h"
+
+#include <unistd.h>
+
+namespace ehs
+{
+    UsbBase::UsbBase()
+        : bus(0), address(0)
+    {
+    }
+
+    UsbBase::UsbBase(const UInt_32 bus, const UInt_32 address)
+        : bus(bus), address(address)
+    {
+    }
+
+    UsbBase::UsbBase(UsbBase&& usb) noexcept
+        : bus(usb.bus), address(usb.address)
+    {
+        usb.bus = 0;
+        usb.address = 0;
+    }
+
+    UsbBase::UsbBase(const UsbBase& usb)
+        : bus(usb.bus), address(usb.address)
+    {
+    }
+
+    UsbBase& UsbBase::operator=(UsbBase&& usb) noexcept
+    {
+        if (this == &usb)
+            return *this;
+
+        bus = usb.bus;
+        address = usb.address;
+
+        usb.bus = 0;
+        usb.address = 0;
+
+        return *this;
+    }
+
+    UsbBase& UsbBase::operator=(const UsbBase& usb)
+    {
+        if (this == &usb)
+            return *this;
+
+        bus = usb.bus;
+        address = usb.address;
+
+        return *this;
+    }
+
+    void UsbBase::BulkSend(const Byte* const data, const Size size)
+    {
+        Size out = 0;
+        while (out < size)
+            out = Send(&data[out], size);
+    }
+
+    void UsbBase::BulkReceive(Byte** data, Size* size)
+    {
+        Byte *result = nullptr;
+        Size total = 0;
+        Size in;
+        do
+        {
+            Byte *resize = new Byte[(total + *size) / *size];
+            Util::Copy(resize, result, total);
+
+            in = Receive(&resize[total], *size);
+            total += in;
+
+            delete[] result;
+            result = resize;
+        }
+        while (in);
+
+        *size = total;
+    }
+
+    UInt_32 UsbBase::GetBus() const
+    {
+        return bus;
+    }
+
+    UInt_32 UsbBase::GetAddress() const
+    {
+        return address;
+    }
+
+    bool UsbBase::IsValid() const
+    {
+        return bus && address;
+    }
+}

src/io/Usb_LNX.cpp

@@ -0,0 +1,106 @@
+#include "ehs/io/Usb_LNX.h"
+
+#include <fcntl.h>
+#include <unistd.h>
+
+namespace ehs
+{
+    Usb::~Usb()
+    {
+
+    }
+
+    Usb::Usb()
+        : hdl(-1)
+    {
+    }
+
+    Usb::Usb(const UInt_32 bus, const UInt_32 address)
+        : UsbBase(bus, address), hdl(-1)
+    {
+        Initialize();
+    }
+
+    Usb::Usb(Usb&& usb) noexcept
+        : UsbBase((UsbBase&&)usb), hdl(usb.hdl)
+    {
+        usb.hdl = -1;
+    }
+
+    Usb::Usb(const Usb& usb)
+        : UsbBase(usb), hdl(-1)
+    {
+        Initialize();
+    }
+
+    Usb& Usb::operator=(Usb&& usb) noexcept
+    {
+        if (this == &usb)
+            return *this;
+
+        UsbBase::operator=((UsbBase&&)usb);
+
+        hdl = usb.hdl;
+
+        usb.hdl = -1;
+
+        return *this;
+    }
+
+    Usb& Usb::operator=(const Usb& usb)
+    {
+        if (this == &usb)
+            return *this;
+
+        UsbBase::operator=(usb);
+
+        hdl = -1;
+
+        Initialize();
+
+        return *this;
+    }
+
+    void Usb::Initialize()
+    {
+        if (!IsValid())
+        {
+            EHS_LOG_INT("Error", 0, "Cannot initialize with an invalid object.");
+            return;
+        }
+
+        if (IsInitialized())
+        {
+            EHS_LOG_INT("Warning", 1, "Object is already initialized.");
+            return;
+        }
+
+        hdl = open("/dev/bus/usb/" + Str_8::FromNum(GetBus()) + "/" + Str_8::FromNum(GetAddress()), O_RDWR);
+        if (hdl == -1)
+            EHS_LOG_INT("Error", 2, "Failed to connect to USB device.");
+    }
+
+    void Usb::Release()
+    {
+        if (!IsValid())
+        {
+            EHS_LOG_INT("Error", 0, "Cannot release with an invalid object.");
+            return;
+        }
+
+        if (!IsInitialized())
+        {
+            EHS_LOG_INT("Warning", 1, "Object is already released.");
+            return;
+        }
+
+        close(hdl);
+
+        hdl = -1;
+    }
+
+    bool Usb::IsInitialized() const
+    {
+        return hdl != -1;
+    }
+}

src/io/model/Mdl.cpp

@@ -275,6 +275,7 @@ namespace ehs
 
 			meshes[i].SetIndices(data.ReadArray<UInt_32, UInt_64>());
 
+			/*
 			Bone& skeleton = mdl->GetSkeleton();
 			UInt_8 boneCount = data.Read<UInt_8>();
 			for (UInt_8 b = 0; b < boneCount; ++b)
@@ -328,6 +329,7 @@ namespace ehs
 					}
 				}
 			}
+			*/
 		}
 
 		return true;