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