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//
// This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
// project.
//
// Copyright (C) 1998-2024 OpenLink Software
//
// This project is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the
// Free Software Foundation; only version 2 of the License, dated June 1991.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
//
//
//
// $Id$
//
using System;
using System.EnterpriseServices;
using System.Runtime.InteropServices;
#if ODBC_CLIENT
namespace OpenLink.Data.VirtuosoOdbcClient
#elif CLIENT
namespace OpenLink.Data.VirtuosoClient
#else
namespace OpenLink.Data.Virtuoso
#endif
{
internal sealed class DTC
{
internal static ITransactionExport GetTransactionExport (ITransaction transaction, byte[] whereabouts)
{
if (transaction == null || whereabouts == null)
return null;
IGetDispenser pIGetDispenser = transaction as IGetDispenser;
if (pIGetDispenser == null)
return null;
object dispenser = null;
Guid iid_ITransactionDispenser = new Guid ("3A6AD9E1-23B9-11cf-AD60-00AA00A74CCD");
pIGetDispenser.GetDispenser (ref iid_ITransactionDispenser, out dispenser);
ITransactionExportFactory factory = dispenser as ITransactionExportFactory;
if (factory == null)
return null;
object export = null;
factory.Create ((uint) whereabouts.Length, whereabouts, out export);
return (ITransactionExport) export;
}
internal static byte[] GetTransactionCookie (ITransaction transaction, ITransactionExport export)
{
uint size;
export.Export (transaction, out size);
uint length;
byte[] cookie = new byte[size];
export.GetTransactionCookie (transaction, size, cookie, out length);
return cookie;
}
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Guid ("c23cc370-87ef-11ce-8081-0080c758527e")]
internal interface IGetDispenser
{
void GetDispenser (
[In] ref Guid iid,
[Out, MarshalAs (UnmanagedType.IUnknown)] out object ppvObject
);
}
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Guid ("E1CF9B53-8745-11ce-A9BA-00AA006C3706")]
internal interface ITransactionExportFactory
{
void GetRemoteClassId (
[Out] out Guid pclsid
);
void Create (
[In] uint cbWhereabouts,
[In, MarshalAs (UnmanagedType.LPArray)] byte[] rgbWhereabouts,
[Out, MarshalAs (UnmanagedType.IUnknown)] out object ppExport
);
}
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Guid ("0141fda5-8fc0-11ce-bd18-204c4f4f5020")]
internal interface ITransactionExport
{
void Export (
[In, MarshalAs (UnmanagedType.IUnknown)] object pUnkTransaction,
[Out] out uint pcbTransactionCookie
);
void GetTransactionCookie (
[In, MarshalAs (UnmanagedType.IUnknown)] object pUnkTransaction,
[In] uint cbTransactionCookie,
[Out, MarshalAs (UnmanagedType.LPArray)] byte[] rgbTransactionCookie,
[Out] out uint pcbUsed
);
void RemoteGetTransactionCookie (
[In, MarshalAs (UnmanagedType.IUnknown)] object pUnkTransaction,
[Out] out uint pcbUsed,
[In] uint cbTransactionCookie,
[Out, MarshalAs (UnmanagedType.LPArray)] byte[] rgbTransactionCookie
);
}
}
}
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