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txcoord.idl：源码内容
							//-----------------------------------------------------------------------------
// File:			txcoord.idl
//
// Copyright:		Copyright (c) Microsoft Corporation          
//
// Contents: 		Transaction types and interfaces related to
//		            transaction coordination.
//
// Comments: 		
//
//-----------------------------------------------------------------------------
import "transact.idl";
import "objidl.idl";    // needed for IMoniker
//
//--------------------------------------------------------------------------
//
interface ITransactionResourceAsync;
interface ITransactionEnlistmentAsync;
interface ITransactionExportFactory;
interface ITransactionImportWhereabouts;
interface ITransactionExport;
interface ITransactionImport;
//
//--------------------------------------------------------------------------
//
// @interface ITransactionResourceAsync | Implemented by the resource manager.
[object,uuid(69E971F0-23CE-11cf-AD60-00AA00A74CCD),pointer_default(unique)]
interface ITransactionResourceAsync : IUnknown
	{
    HRESULT PrepareRequest
        (
        [in] BOOL fRetaining, 
        [in] DWORD grfRM, 
        [in] BOOL fWantMoniker,
        [in] BOOL fSinglePhase
        );
    HRESULT CommitRequest
        (
        [in] DWORD grfRM, 
        [in] XACTUOW* pNewUOW
        );
    HRESULT AbortRequest
        (
        [in] BOID* pboidReason,
        [in] BOOL  fRetaining,
        [in] XACTUOW* pNewUOW
        );
	HRESULT	TMDown 
		( 
			void 
		);
    }
//
//--------------------------------------------------------------------------
//
// @interface ITransactionEnlistmentAsync |
[object,uuid(0fb15081-af41-11ce-bd2b-204c4f4f5020),pointer_default(unique)]
interface ITransactionEnlistmentAsync : IUnknown {
    HRESULT PrepareRequestDone
        (
        [in] HRESULT hr, 
        [in] IMoniker* pmk,
        [in] BOID* pboidReason
        );
    HRESULT CommitRequestDone
        (
        [in] HRESULT hr
        );
    HRESULT AbortRequestDone
        (
        [in] HRESULT hr
        );
    } 
//
//==========================================================================
// Interfaces related to ODBC transaction coordination.
//==========================================================================
//
// @interface ITransactionExportFactory | Used on the client side to associate an export / import object pair with an external connection.
[object,uuid(E1CF9B53-8745-11ce-A9BA-00AA006C3706),pointer_default(unique)]
interface ITransactionExportFactory : IUnknown {
    HRESULT GetRemoteClassId
        (
        [out] CLSID*    pclsid
        );
    HRESULT Create
        (
        [in]  ULONG                     cbWhereabouts,
        [in, size_is(cbWhereabouts)]            
              BYTE*                     rgbWhereabouts,
        [out] ITransactionExport**      ppExport
        );
    }
//
//--------------------------------------------------------------------------
//
// @interface ITransactionImportWhereabouts | Used on the server side to associate an export / import object pair with an external connection.
[object,uuid(0141fda4-8fc0-11ce-bd18-204c4f4f5020),pointer_default(unique)]
interface ITransactionImportWhereabouts : IUnknown {
    HRESULT GetWhereaboutsSize
        (
        [out] ULONG*    pcbWhereabouts
        );
    [local]
    HRESULT GetWhereabouts
        (
        [in]  ULONG     cbWhereabouts,
        [out, size_is(cbWhereabouts)]
              BYTE*     rgbWhereabouts,
        [out] ULONG*    pcbUsed
        );
    [call_as(GetWhereabouts)]   // pcbWhereaboutsUsed is optional; error semantics on it
    HRESULT RemoteGetWhereabouts
        (
        [out] ULONG*    pcbUsed,
        [in]  ULONG     cbWhereabouts,
        [out, size_is(cbWhereabouts), length_is(*pcbUsed)]
              BYTE*     rgbWhereabouts
        );
    }
//
//--------------------------------------------------------------------------
//
// @interface ITransactionExport | Used to plumb up a particular transaction with an export / import pair.
[object,uuid(0141fda5-8fc0-11ce-bd18-204c4f4f5020),pointer_default(unique)]
interface ITransactionExport : IUnknown {
    HRESULT Export
        (
        [in]  IUnknown* punkTransaction,
        [out] ULONG*    pcbTransactionCookie
        );
    [local]
    HRESULT GetTransactionCookie
        (
        [in]  IUnknown* punkTransaction,
        [in]  ULONG     cbTransactionCookie,
        [out, size_is(cbTransactionCookie)]
              BYTE*     rgbTransactionCookie,
        [out] ULONG*    pcbUsed
        );
    [call_as(GetTransactionCookie)]
    HRESULT RemoteGetTransactionCookie
        (
        [in]  IUnknown* punkTransaction,
        [out] ULONG*    pcbUsed,
        [in]  ULONG     cbTransactionCookie,
        [out, size_is(cbTransactionCookie), length_is(*pcbUsed)]
              BYTE*     rgbTransactionCookie
        );
    }
//
//--------------------------------------------------------------------------
//
// @interface ITransactionImport | Used to plumb up a particular transaction with an export / import pair.
[object,uuid(E1CF9B5A-8745-11ce-A9BA-00AA006C3706),pointer_default(unique)]
interface ITransactionImport : IUnknown {
    HRESULT Import
        (
        [in]  ULONG         cbTransactionCookie,
        [in, size_is(cbTransactionCookie)]
              BYTE*         rgbTransactionCookie,
        [in]  IID*          piid,
        [out, iid_is(piid)]
              void**        ppvTransaction
        );
    }

						