94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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mmapstm.h
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Abstract:
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IStream over a memory-mapped file, derived (in the C++ sense) from
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RTL_MEMORY_STREAM. Note the semantics and implementation here
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of IStream::Stat are specialized for use by sxs.
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Author:
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Jay Krell (a-JayK) June 2000
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Revision History:
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--*/
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#include "nturtl.h"
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typedef struct _BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE {
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RTL_MEMORY_STREAM_WITH_VTABLE MemStream;
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HANDLE FileHandle;
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} BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE, *PBASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE;
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VOID
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STDMETHODCALLTYPE
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BaseSrvInitMemoryMappedStream(
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PBASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE MmapStream
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);
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VOID
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STDMETHODCALLTYPE
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BaseSrvFinalReleaseMemoryMappedStream(
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PRTL_MEMORY_STREAM_WITH_VTABLE MemStream
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);
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//
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// We mostly just inherit the RtlMemoryStream implementation.
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// "Declare" that by providing names for our virtual member functions
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// whose first parameter is of the correct type.
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//
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#define BaseSrvAddRefMemoryMappedStream \
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((PRTL_ADDREF_STREAM1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlAddRefMemoryStream)
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#define BaseSrvReleaseMemoryMappedStream \
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((PRTL_RELEASE_STREAM1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlReleaseMemoryStream)
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#define BaseSrvQueryInterfaceMemoryMappedStream \
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((PRTL_QUERYINTERFACE_STREAM1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlQueryInterfaceMemoryStream)
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#define BaseSrvReadMemoryMappedStream \
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((PRTL_READ_STREAM1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlReadMemoryStream)
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#define BaseSrvWriteMemoryMappedStream \
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((PRTL_WRITE_STREAM1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlWriteMemoryStream)
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#define BaseSrvSeekMemoryMappedStream \
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((PRTL_SEEK_STREAM1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlSeekMemoryStream)
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#define BaseSrvSetMemoryMappedStreamSize \
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((PRTL_SET_STREAM_SIZE1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlSetMemoryStreamSize)
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#define BaseSrvCopyMemoryMappedStreamTo \
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((PRTL_COPY_STREAM_TO1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlCopyMemoryStreamTo)
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#define BaseSrvCommitMemoryMappedStream \
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((PRTL_COMMIT_STREAM1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlCommitMemoryStream)
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#define BaseSrvRevertMemoryMappedStream \
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((PRTL_REVERT_STREAM1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlRevertMemoryStream)
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#define BaseSrvLockMemoryMappedStreamRegion \
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((PRTL_LOCK_STREAM_REGION1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlLockMemoryStreamRegion)
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#define BaseSrvUnlockMemoryMappedStreamRegion \
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((PRTL_UNLOCK_STREAM_REGION1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlUnlockMemoryStreamRegion)
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// override
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HRESULT
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STDMETHODCALLTYPE
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BaseSrvStatMemoryMappedStream(
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PBASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE MmapStream,
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STATSTG* Stat,
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DWORD Flags
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);
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#define BaseSrvCloneMemoryMappedStream \
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((PRTL_CLONE_STREAM1(BASE_SRV_MEMORY_MAPPED_STREAM_WITH_VTABLE))RtlCloneMemoryStream)
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