90 lines
1.5 KiB
C
90 lines
1.5 KiB
C
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/*++
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Copyright (c) 1998-1999 Microsoft Corporation
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Module Name:
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context.h
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Abstract:
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This module contains the context handling routines
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Author:
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Neal Christiansen (nealch) 08-Jan-2001
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Revision History:
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--*/
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#ifndef _CONTEXT_H_
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#define _CONTEXT_H_
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VOID
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SrInitContextCtrl (
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IN PSR_DEVICE_EXTENSION pExtension
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);
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VOID
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SrCleanupContextCtrl(
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IN PSR_DEVICE_EXTENSION pExtension
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);
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VOID
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SrDeleteAllContexts(
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IN PSR_DEVICE_EXTENSION pExtension
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);
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VOID
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SrDeleteContext(
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IN PSR_DEVICE_EXTENSION pExtension,
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IN PSR_STREAM_CONTEXT pFileContext
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);
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VOID
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SrLinkContext(
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IN PSR_DEVICE_EXTENSION pExtension,
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IN PFILE_OBJECT pFileObject,
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IN OUT PSR_STREAM_CONTEXT *ppFileContext
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);
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NTSTATUS
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SrCreateContext (
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IN PSR_DEVICE_EXTENSION pExtension,
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IN PFILE_OBJECT pFileObject,
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IN SR_EVENT_TYPE EventType,
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IN USHORT FileAttributes,
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OUT PSR_STREAM_CONTEXT *pRetContext
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);
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#define SrFreeContext( pCtx ) \
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(ASSERT((pCtx)->UseCount == 0), \
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ExFreePool( (pCtx) ))
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NTSTATUS
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SrGetContext(
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IN PSR_DEVICE_EXTENSION pExtension,
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IN PFILE_OBJECT pFileObject,
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IN SR_EVENT_TYPE EventType,
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OUT PSR_STREAM_CONTEXT *pRetContext
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);
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PSR_STREAM_CONTEXT
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SrFindExistingContext(
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IN PSR_DEVICE_EXTENSION pExtension,
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IN PFILE_OBJECT pFileObject
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);
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VOID
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SrMakeContextUninteresting (
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IN PSR_STREAM_CONTEXT pFileContext
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);
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VOID
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SrReleaseContext(
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IN PSR_STREAM_CONTEXT pFileContext
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);
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#endif
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