Source code of Windows XP (NT5)
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/******************************************************************************
*
* Copyright (c) 1999 Microsoft Corporation
*
* Module Name:
* hashlist.h
*
* Abstract:
* This file contains the definitions for pathtree.
*
* Revision History:
* Kanwaljit S Marok ( kmarok ) 05/17/99
* created
*
*****************************************************************************/
#ifndef _PATHTREE_H_
#define _PATHTREE_H_
#ifdef __cplusplus
extern "C" {
#endif
#include "common.h"
#define ALLVOLUMES_PATH_A "__ALLVOLUMES__"
#define ALLVOLUMES_PATH_W L"__ALLVOLUMES__"
#define ALLVOLUMES_PATH_T TEXT("__ALLVOLUMES__")
#define TREEFLAGS_DISABLE_SUBTREE 0x00000001
//
// Tree specific structures.
//
typedef struct
{
//
// Directory related stuff.
//
INT m_iFather ; // Index to the parent node
INT m_iSon ; // Index to the first son
INT m_iSibling ; // Index to next sibling
DWORD m_dwData ; // Offset for node data
DWORD m_dwFileList; // Offset for file list
DWORD m_dwType ; // Node Type
DWORD m_dwFlags ; // Misc flags
} TreeNode;
typedef struct
{
DEFINE_BLOB_HEADER(); // Define common blob members
//
// Tree related header stuff
//
DWORD m_dwMaxNodes ; // Max number of nodes allowed
DWORD m_dwDataSize ; // Data section size
DWORD m_dwDataOff ; // Current Data Offset
INT m_iFreeNode ; // Next free node
DWORD m_dwDefault ; // Default node type
} TreeHeader;
//
// Tree Related Macros.
//
#define TREE_NODES(pTree) ( (TreeNode*) ((BYTE *)pTree+sizeof(TreeHeader)) )
#define TREE_NODEPTR(pTree, iNode) ( TREE_NODES(pTree) + iNode)
#define TREE_HEADER(pTree) ( (TreeHeader *) pTree )
#define TREE_CURRDATAOFF(pTree) ( ((TreeHeader *)pTree)->m_dwDataOff )
#define TREE_CURRDATAPTR(pTree) ( (BYTE *)pTree + TREE_CURRDATAOFF(pTree) )
#define TREE_DATA(pTree) ( (BYTE *)TREE_NODES(pTree) + \
(sizeof(TreeNode) * \
TREE_HEADER(pTree)->m_dwMaxNodes) \
)
#define TREE_DATA_OFF(pTree) ( sizeof(TreeHeader) + \
(sizeof(TreeNode) * \
TREE_HEADER(pTree)->m_dwMaxNodes) \
)
#define TREE_DRIVENODE( pTree, iDrive ) \
( TREE_HEADER(pTree)->m_arrDrive[ iDrive ] )
#define TREE_NODELISTOFF( pTree, iNode ) \
TREE_NODEPTR( pTree, iNode )->m_dwFileList
#define DRIVE_INDEX( drive ) ( drive - L'A' )
#define TREE_ROOT_NODE 0 // Root node is always assigned as 0
//
// Function Prototypes.
//
BOOL
MatchPrefix(
BYTE * pTree,
INT iParent,
struct PathElement * ppElem ,
INT * pNode,
INT * pLevel,
INT * pType,
BOOL* pfDisable,
BOOL* pfExactMatch
);
BOOL
ConvertToParsedPath(
LPWSTR lpszPath,
USHORT nPathLen,
PBYTE pPathBuf,
WORD nPathSize
);
#ifdef __cplusplus
}
#endif
#endif _PATHTREE_H_