mcs/class/System.Data/System.Data.OleDb/libgda.cs

   1 //
   2 // System.Data.OleDb.libgda
   3 //
   4 // Author:
   5 //   Rodrigo Moya (rodrigo@ximian.com)
   6 //
   7 // Copyright (C) Rodrigo Moya, 2002
   8 //
   9
  10 using System.Data;
  11 using System.Data.Common;
  12 using System.Runtime.InteropServices;
  13
  14 namespace System.Data.OleDb
  15 {
  16         sealed internal class libgda
  17         {
  18                 private static IntPtr m_gdaClient = IntPtr.Zero;
  19
  20                 static libgda ()
  21                 {
  22                         gda_init ("System.Data.OleDb", "0.1", 0, null);
  23                 }
  24
  25                 public static IntPtr GdaClient
  26                 {
  27                         get {
  28                                 if (m_gdaClient == IntPtr.Zero)
  29                                         m_gdaClient = gda_client_new ();
  30
  31                                 return m_gdaClient;
  32                         }
  33                 }
  34
  35                 [DllImport("gda-2")]
  36                 public static extern void gda_init (string app_id,
  37                                                     string version,
  38                                                     int nargs,
  39                                                     string[] args);
  40
  41                 [DllImport("gda-2")]
  42                 public static extern IntPtr gda_client_new ();
  43
  44                 [DllImport("gda-2")]
  45                 public static extern IntPtr gda_client_open_connection (IntPtr client,
  46                                                                         string dsn,
  47                                                                         string username,
  48                                                                         string password);
  49
  50                 [DllImport("gda-2")]
  51                 public static extern bool gda_connection_is_open (IntPtr cnc);
  52
  53                 [DllImport("gda-2")]
  54                 public static extern bool gda_connection_close (IntPtr cnc);
  55
  56                 [DllImport("gda-2")]
  57                 public static extern string gda_connection_get_database (IntPtr cnc);
  58         }
  59 }