mcs/class/FirebirdSql.Data.Firebird/FirebirdSql.Data.Embedded/ArrayDescMarshal.cs

   1 /*
   2  *      Firebird ADO.NET Data provider for .NET and Mono
   3  *
   4  *         The contents of this file are subject to the Initial
   5  *         Developer's Public License Version 1.0 (the "License");
   6  *         you may not use this file except in compliance with the
   7  *         License. You may obtain a copy of the License at
   8  *         http://www.firebirdsql.org/index.php?op=doc&id=idpl
   9  *
  10  *         Software distributed under the License is distributed on
  11  *         an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either
  12  *         express or implied. See the License for the specific
  13  *         language governing rights and limitations under the License.
  14  *
  15  *      Copyright (c) 2002, 2005 Carlos Guzman Alvarez
  16  *      All Rights Reserved.
  17  */
  18
  19 using System;
  20 using System.Runtime.InteropServices;
  21
  22 using FirebirdSql.Data.Common;
  23
  24 namespace FirebirdSql.Data.Embedded
  25 {
  26         #region Structures
  27
  28         [StructLayout(LayoutKind.Sequential)]
  29         internal struct ArrayDescMarshal
  30         {
  31                 public byte DataType;
  32                 public byte Scale;
  33                 public short Length;
  34                 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
  35                 public string FieldName;
  36                 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
  37                 public string RelationName;
  38                 public short Dimensions;
  39                 public short Flags;
  40
  41                 #region Static Methods
  42
  43                 public static int ComputeLength(int n)
  44                 {
  45                         return (Marshal.SizeOf(typeof(ArrayDescMarshal)) + n * Marshal.SizeOf(typeof(ArrayBoundMarshal)));
  46                 }
  47
  48                 #endregion
  49         }
  50
  51         [StructLayout(LayoutKind.Sequential)]
  52         internal struct ArrayBoundMarshal
  53         {
  54                 public short LowerBound;
  55                 public short UpperBound;
  56         }
  57
  58         #endregion
  59 }