示例#1
0
        /// <summary>
        /// Marshals a managed object to an array of bytes.
        /// </summary>
        /// <param name="obj">The object to marshal.</param>
        /// <returns>A array of bytes corresponding to the managed object.</returns>
        public byte[] ObjectToByteArray(object obj)
        {
            // We'll tried to avoid marshalling as it really slows the process
            // First, check if the type can be converted without marhsalling
            try
            {
                switch (TypeCode)
                {
                case TypeCode.Object:
                    if (IsIntPtr)
                    {
                        switch (Size)
                        {
                        case 4:
                            return(BitConverter.GetBytes(((IntPtr)(object)obj).ToInt32()));

                        case 8:
                            return(BitConverter.GetBytes(((IntPtr)(object)obj).ToInt64()));
                        }
                    }
                    break;

                case TypeCode.Boolean:
                    return(BitConverter.GetBytes((bool)(object)obj));

                case TypeCode.Char:
                    return(Encoding.UTF8.GetBytes(new[] { (char)(object)obj }));

                case TypeCode.Double:
                    return(BitConverter.GetBytes((double)(object)obj));

                case TypeCode.Int16:
                    return(BitConverter.GetBytes((short)(object)obj));

                case TypeCode.Int32:
                    return(BitConverter.GetBytes((int)(object)obj));

                case TypeCode.Int64:
                    return(BitConverter.GetBytes((long)(object)obj));

                case TypeCode.Single:
                    return(BitConverter.GetBytes((float)(object)obj));

                case TypeCode.String:
                    throw new InvalidCastException("This method doesn't support string conversion.");

                case TypeCode.UInt16:
                    return(BitConverter.GetBytes((ushort)(object)obj));

                case TypeCode.UInt32:
                    return(BitConverter.GetBytes((uint)(object)obj));

                case TypeCode.UInt64:
                    return(BitConverter.GetBytes((ulong)(object)obj));

                default:
                    break;
                }
            }
            catch (Exception e)
            {
                Debug.WriteLine(e);
            }

            // Check if it's not a common type
            // Allocate a block of unmanaged memory
            using var unmanaged = new LocalUnmanagedMemory(Size);
            // Write the object inside the unmanaged memory
            unmanaged.Write(obj);
            // Return the content of the block of unmanaged memory
            return(unmanaged.Read());
        }
示例#2
0
        /// <summary>
        /// Marshals an array of byte to a managed object.
        /// </summary>
        /// <param name="byteArray">The array of bytes corresponding to a managed object.</param>
        /// <param name="index">[Optional] Where to start the conversion of bytes to the managed object.</param>
        /// <returns>A managed object.</returns>
        public object ByteArrayToObject(byte[] byteArray, int index = 0)
        {
            // We'll tried to avoid marshalling as it really slows the process
            // First, check if the type can be converted without marshalling

            try
            {
                switch (TypeCode)
                {
                case TypeCode.Object:
                    if (IsIntPtr)
                    {
                        switch (byteArray.Length)
                        {
                        case 1:
                            return((object)new IntPtr(BitConverter.ToInt32(new byte[] { byteArray[index], 0x0, 0x0, 0x0 }, index)));

                        case 2:
                            return((object)new IntPtr(BitConverter.ToInt32(new byte[] { byteArray[index], byteArray[index + 1], 0x0, 0x0 }, index)));

                        case 4:
                            return((object)new IntPtr(BitConverter.ToInt32(byteArray, index)));

                        case 8:
                            return((object)new IntPtr(BitConverter.ToInt64(byteArray, index)));

                        default:
                            break;
                        }
                    }
                    break;

                case TypeCode.Boolean:
                    return((object)BitConverter.ToBoolean(byteArray, index));

                case TypeCode.Byte:
                    return((object)byteArray[index]);

                case TypeCode.Char:
                    return((object)Encoding.UTF8.GetChars(byteArray)[index]);

                case TypeCode.Double:
                    return((object)BitConverter.ToDouble(byteArray, index));

                case TypeCode.Int16:
                    return((object)BitConverter.ToInt16(byteArray, index));

                case TypeCode.Int32:
                    return((object)BitConverter.ToInt32(byteArray, index));

                case TypeCode.Int64:
                    return((object)BitConverter.ToInt64(byteArray, index));

                case TypeCode.Single:
                    return((object)BitConverter.ToSingle(byteArray, index));

                case TypeCode.String:
                    throw new InvalidCastException("This method doesn't support string conversion.");

                case TypeCode.UInt16:
                    return((object)BitConverter.ToUInt16(byteArray, index));

                case TypeCode.UInt32:
                    return((object)BitConverter.ToUInt32(byteArray, index));

                case TypeCode.UInt64:
                    return((object)BitConverter.ToUInt64(byteArray, index));

                default:
                    break;
                }
            }
            catch (Exception e)
            {
                Debug.WriteLine(e);
            }

            // Allocate a block of unmanaged memory
            using var unmanaged = new LocalUnmanagedMemory(Size);
            // Write the array of bytes inside the unmanaged memory
            unmanaged.Write(byteArray, index);

            // Return a managed object created from the block of unmanaged memory
            return(unmanaged.Read(RealType));
        }