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/*++
THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.
Copyright (c) Microsoft Corporation. All rights reserved
Module Name:
StorageAdapter.h
Abstract:
This module contains a stub implementation of a Storage Adapter
plug-in for the Windows Biometric service.
Author:
-
Environment:
Win32, user mode only.
Revision History:
NOTES:
(None)
--*/
#pragma once
#include "winbio_adapter.h"
///////////////////////////////////////////////////////////////////////////////
//
// The WINIBIO_STORAGE_CONTEXT structure is privately-defined by each
// Storage Adapter. Its purpose is to maintain any information that
// should persist across Storage Adapter API calls.
//
// The Adapter allocates and initializes one of these structures in its
// 'Attach' routine and saves its address in the Pipeline->StorageContext
// field.
//
// The Storage Adapter's 'Detach' routine cleans up and deallocates the
// structure and sets the PipelineContext->StorageContext field to NULL.
//
///////////////////////////////////////////////////////////////////////////////
typedef struct _WINIBIO_STORAGE_CONTEXT {
//
// The following fields illustrate the kind of information
// the Storage Adapter needs to keep in this structure:
//
// DatabaseId - Identify of the Adapter's
// currently-opened database.
//
// DatabaseHandle - A handle to the Storage Adapter's
// currently-open database.
//
// ResultSet - A collection of records generated by
// a database query operation.
//
// ResultSetCursor - Current location in the result
// set. Used to iterate through the
// result set and make individual
// records available.
//
WINBIO_UUID DatabaseId;
PVOID DatabaseHandle;
PVOID ResultSet;
PVOID ResultSetCursor;
} WINIBIO_STORAGE_CONTEXT, *PWINIBIO_STORAGE_CONTEXT;
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