85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
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/*++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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msconst.h
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Abstract:
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This module defines all of the node type codes used in this development
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shell.
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Author:
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Manny Weiser (mannyw) 7-Jan-1991
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Revision History:
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--*/
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#ifndef _MSCONST_
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#define _MSCONST_
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//
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// Every major data structure in the file system is assigned a node
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// type code. This code is the first CSHORT in the structure and is
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// followed by a CSHORT containing the size, in bytes, of the structure.
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//
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typedef CSHORT NODE_TYPE_CODE;
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typedef NODE_TYPE_CODE *PNODE_TYPE_CODE;
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#define NTC_UNDEFINED ((NODE_TYPE_CODE)0x0000)
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#define MSFS_NTC_VCB ((NODE_TYPE_CODE)0x0601)
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#define MSFS_NTC_ROOT_DCB ((NODE_TYPE_CODE)0x0602)
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#define MSFS_NTC_FCB ((NODE_TYPE_CODE)0x0604)
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#define MSFS_NTC_CCB ((NODE_TYPE_CODE)0x0606)
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#define MSFS_NTC_ROOT_DCB_CCB ((NODE_TYPE_CODE)0x0608)
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typedef CSHORT NODE_BYTE_SIZE;
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//
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// The name of the mailslot file system.
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//
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#define MSFS_NAME_STRING L"MSFS"
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//
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// Volume label
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//
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#define MSFS_VOLUME_LABEL L"Mailslot"
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//
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// The default read timeout. This is used if no timeout is specified
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// when the mailslot is created.
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//
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#define DEFAULT_READ_TIMEOUT { -1, -1 }
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//
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// The number of parameter bytes returned by a peek call.
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//
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#define PEEK_OUTPUT_PARAMETER_BYTES \
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((ULONG)FIELD_OFFSET(FILE_MAILSLOT_PEEK_BUFFER, Data[0]))
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//
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// The number of parameter bytes returned by a mailslot read call.
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//
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#define READ_OUTPUT_PARAMETER_BYTES \
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((ULONG)FIELD_OFFSET(FILE_MAILSLOT_READ_BUFFER, Data[0]))
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//
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// Access to the block header information.
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//
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#define NodeType(Ptr) (*((PNODE_TYPE_CODE)(Ptr)))
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#endif // _MSCONST_
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