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546 lines
20 KiB
546 lines
20 KiB
/*****************************************************************************
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* *
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* IMVFS.H *
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* *
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* *
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* Copyright (C) Microsoft Corporation 1990 - 1994. *
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* All Rights reserved. *
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* *
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******************************************************************************
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* *
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* Module intent *
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* *
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* Declares all privately available MVFS.DLL routines *
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* *
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******************************************************************************
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* *
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* Current Owner: BINHN *
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* *
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*****************************************************************************/
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#ifndef __IMVFS_H__
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#define __IMVFS_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#pragma pack(1) // avoid problems when Zp!=1
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// requires windows.h, mvopsys.h, misc.h, orkin.h
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#include <fileoff.h>
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typedef USHORT RC; // for those not coming via HELP.H
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/*****************************************************************************
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*
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* File Moniker
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*
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*****************************************************************************/
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#define fmNil ((FM)0)
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#define qafmNil ((QAFM)0)
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/*
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When creating an FM (in other WORDs, specifying the location of a new
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or extant file), the caller must specify the directory in which that file
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is located. There are a finite number of directories available to Help.
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These are:
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*/
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#define dirNil 0x0000 // No directory specified
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#define dirCurrent 0x0001 // Whatever the OS thinks the current dir. is
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#define dirTemp 0x0002 // The directory temporary files are created in
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#define dirHelp 0x0004 // Wherever the Help Application lives
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#define dirSystem 0x0008 // The Windows and Windows System directories
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#define dirPath 0x0010 // Searches the $PATH
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// (includes Current dir and System dirs)
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#define dirAll 0xFFFF // Search all directories, in the above order
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#define dirFirst dirCurrent // The lowest bit that can be set
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#define dirLast dirPath // The highest bit that can be set
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/*
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To specify which parts of a full filename you want to extract, add
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(logical or) the following part codes:
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*/
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#define partNone 0x0000 // return nothing
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#define partDrive 0x0001 // D: Vol
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#define partDir 0x0002 // dir\dir\ :dir:dir:
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#define partBase 0x0004 // basename filename
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#define partExt 0x0008 // ext <usu. nothing>
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#define partAll 0xFFFF
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// Get from stdlib.h
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#if !defined(_M_MPPC) && !defined(_M_M68K)
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#define _MAX_PATH 260 /* max. length of full pathname */
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#else /* ndef defined(_M_M68K) || defined(_M_MPPC) */
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#define _MAX_PATH 256 /* max. length of full pathname */
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#endif /* defined(_M_M68K) || defined(_M_MPPC) */
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/*
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max. string lengths of file names
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*/
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#define cchMaxPath _MAX_PATH // = _MAX_PATH in <stdlib.h>
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typedef HANDLE HFS;
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typedef short HF;
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/*
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An FM is a magic cookie which refers to some structure describing the
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location of a file, including the volume/drive, path, and filename.
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*/
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typedef struct {
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char rgch[cchMaxPath]; // Fully canonicalized pathname
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} AFM; // RAllocation of FMS
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typedef AFM FAR *QAFM;
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typedef LPSTR FM; // An FM is now just a string, allocated through
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// the NewMemory()/DisposeMemory() API
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typedef USHORT DIR; // Help directory flag
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#define FValidFm(fm) ((fm)!=fmNil)
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/*** MATTSMI 2/5/92 -- ADDED FROM DOS VERSION OF THIS HEADER TO SUPPORT WMVC ***/
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#define VerifyFm(fm) // assert(fm == fmNil || FCheckGh((HANDLE) fm))
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// VerifyFm(fm) not needed for FM being LPSTR
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FM EXPORT_API FAR PASCAL FmNewSzDir (LPSTR, DIR, LPVOID);
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FM EXPORT_API PASCAL FAR FmNew(LPSTR, LPVOID);
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FM EXPORT_API FAR PASCAL FmNewExistSzDir (LPSTR, DIR, LPVOID);
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FM EXPORT_API FAR PASCAL FmNewExistSzIni (LPSTR, LPSTR, LPSTR, LPVOID);
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FM EXPORT_API FAR PASCAL FmNewTemp (LPSTR, LPVOID);
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FM EXPORT_API FAR PASCAL FmNewSameDirFmSz (FM, LPSTR, LPVOID);
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VOID EXPORT_API FAR PASCAL DisposeFm (FM);
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FM EXPORT_API FAR PASCAL FmCopyFm(FM, LPVOID);
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BOOL EXPORT_API FAR PASCAL FExistFm(FM);
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int EXPORT_API FAR PASCAL CbPartsFm(FM, int);
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LPSTR EXPORT_API FAR PASCAL SzPartsFm(FM, LPSTR, int, int);
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BOOL EXPORT_API FAR PASCAL FSameFmFm (FM, FM);
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/*****************************************************************************
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*
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* FIDs - file access (fid.c)
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*
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*****************************************************************************/
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#define wRead 0x0001
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#define wWrite 0x0002
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#define wReadOnly wRead
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#define wReadWrite (wRead | wWrite)
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#define wRWMask (wRead | wWrite)
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#define wShareRead 0x0004
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#define wShareWrite 0x0008
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#define wShareAll (wShareRead | wShareWrite)
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#define wShareNone 0x000
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#define wShareMask (wShareRead | wShareWrite)
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#define wShareShift 2
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#define wSeekSet 0 /* SEEK_SET from stdio.h */
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#define wSeekCur 1 /* SEEK_CUR from stdio.h */
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#define wSeekEnd 2 /* SEEK_END from stdio.h */
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#ifdef _WIN32
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typedef HANDLE FID;
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#define fidNil INVALID_HANDLE_VALUE
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#else
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typedef HFILE FID;
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#define fidNil HFILE_ERROR
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#endif
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FID EXPORT_API FAR PASCAL FidCreateFm(FM fm, WORD wOpenMode, WORD wPerm,
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LPVOID);
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FID EXPORT_API FAR PASCAL FidOpenFm(FM fm, WORD wOpenMode,
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LPVOID);
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BOOL EXPORT_API FAR PASCAL FidFlush(FID fid);
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#define FUnlinkFm(fm) ((BOOL)(RcUnlinkFm(fm)==ERR_SUCCESS))
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RC EXPORT_API FAR PASCAL RcUnlinkFm(FM);
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LONG EXPORT_API FAR PASCAL LcbReadFid(FID, LPVOID, LONG, LPVOID);
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#define FCloseFid(fid) ((BOOL)(RcCloseFid((int)fid) == ERR_SUCCESS))
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RC EXPORT_API FAR PASCAL RcCloseFid(FID);
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LONG EXPORT_API FAR PASCAL LcbWriteFid(FID, LPVOID, LONG, LPVOID);
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LONG EXPORT_API FAR PASCAL LTellFid(FID, LPVOID);
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LONG EXPORT_API FAR PASCAL LSeekFid(FID, LONG, WORD, LPVOID);
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FILEOFFSET EXPORT_API FAR PASCAL FoSeekFid(FID, FILEOFFSET, WORD, LPERRB);
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int EXPORT_API PASCAL FAR FEofFid(FID);
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#define FChSizeFid(fid, lcb) (RcChSizeFid ((fid), (lcb)) == 0)
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RC EXPORT_API PASCAL FAR RcChSizeFid(FID, LONG);
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BOOL EXPORT_API PASCAL FAR FDriveOk(LPSTR);
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/*****************************************************************************
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*
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* BTREE api
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*
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*****************************************************************************/
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#define bBtreeVersionBonehead 0 /* fixed size key, array */
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#define wBtreeMagic 0x293B /* magic number for btrees; a winky: ;) */
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#define bBtreeVersion 2 /* back to strcmp for 'z' keys */
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#define bkNil ((BK)-1)/* nil value for BK */
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#define wMaxFormat 15 /* length of format string */
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#define cbBtreeBlockDefault 8192 /* default btree block size */
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#define fFSDirty (BYTE)0x08 // file (FS) is dirty and needs writing
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/* key types */
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#define KT_SZI 'i'
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#define KT_SZDELMIN 'k' /* not supported */
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#define KT_SZMIN 'm' /* not supported */
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#define KT_SZDEL 'r' /* not supported */
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#define KT_ST 't' /* not supported */
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#define KT_SZ 'z'
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#define KT_VSTI 'V' // variable-byte prefixed Pascal string
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#define KT_STI 'I'
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#define KT_STDELMIN 'K' /* not supported */
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#define KT_LONG 'L'
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#define KT_STMIN 'M' /* not supported */
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#define KT_STDEL 'R' /* not supported */
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#define KT_SZISCAND 'S'
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#define KT_SZMAP 'P'
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#define FBtreeKeyTypeIsSz(c) ((c) == KT_SZ || (c) == KT_SZMAP || (c) == KT_SZI || \
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(c) == KT_SZISCAND)
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/*
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Btree record formats
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In addition to these #defines, '1'..'9', 'a'..'f' for fixed length
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keys & records of 1..15 bytes are accepted.
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*/
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#define FMT_VNUM_FO 'O' // Variable byte offset or length
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#define FMT_BYTE_PREFIX 't'
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#define FMT_WORD_PREFIX 'T'
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#define FMT_SZ 'z'
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#define FBtreeRecordTypeIsSz(c) ((c) == FMT_SZ)
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/* elevator constants */
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#define btelevMax ((BT_ELEV)32767)
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#define btelevNil ((BT_ELEV)-1)
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typedef LONG KEY; /* btree key */
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typedef BYTE KT; /* key type */
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typedef HANDLE HBT; /* handle to a btree */
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typedef HANDLE HMAPBT; /* handle to a btree map */
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// @DOC INTERNAL
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// @struct BTREE_PARAMS | Btree parameters passed in for creation
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typedef struct _btree_params
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{
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HFS hfs; // @field File system that btree lives in
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int cbBlock; // @field Number of bytes in a btree block.
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// Key or Data cannot exceed 1/2 this amount.
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VOID FAR * qCharMapTable; // @field Character map table.
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BYTE bFlags; // @field HFOPEN_ flags (same as used in opening an hFile).
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char rgchFormat[wMaxFormat+1]; // @field Key and record format string.
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} BTREE_PARAMS;
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typedef DWORD BK; // btree block index - extended to DWORD, davej 12/95
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// @DOC INTERNAL
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// @struct BTPOS | Btree position structure.
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typedef struct
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{
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BK bk; // @field Block number.
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int cKey; // @field Which key in block (0 means first).
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int iKey; // @field Key's index db.rgbBlock (in bytes).
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} BTPOS, FAR *QBTPOS;
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typedef int BTELEV, FAR *QBTELEV; /* elevator location: 0 .. 32767 legal */
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HBT EXPORT_API FAR PASCAL HbtCreateBtreeSz(LPSTR, BTREE_PARAMS FAR *,
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LPVOID);
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RC EXPORT_API FAR PASCAL RcDestroyBtreeSz(LPSTR, HFS);
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HBT EXPORT_API FAR PASCAL HbtOpenBtreeSz (LPSTR, HFS, BYTE,
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VOID FAR*, LPVOID);
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RC EXPORT_API FAR PASCAL RcCloseBtreeHbt (HBT);
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RC EXPORT_API FAR PASCAL RcAbandonHbt (HBT);
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LPVOID EXPORT_API PASCAL FAR BtreeGetCMap (HANDLE);
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#if defined(_DEBUG)
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VOID EXPORT_API FAR PASCAL VerifyHbt (HBT);
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#else
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#define VerifyHbt(hbt)
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#endif //!def _DEBUG
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RC EXPORT_API FAR PASCAL RcLookupByPos (HBT, QBTPOS, KEY, int, LPVOID);
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RC EXPORT_API FAR PASCAL RcLookupByKeyAux(HBT, KEY, QBTPOS, LPVOID, BOOL);
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WORD EXPORT_API FAR PASCAL wGetNextNEntries(HBT, WORD wFlags, WORD wEntries, QBTPOS, LPVOID, LONG, LPERRB);
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// Flags for wGetNextNEntries
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#define GETNEXT_KEYS 1
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#define GETNEXT_RECS 2
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#define GETNEXT_RESET 4
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#define RcLookupByKey( hbt, key, qbtpos, qv) \
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RcLookupByKeyAux((hbt), (key), (qbtpos), (qv), FALSE)
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RC EXPORT_API FAR PASCAL RcFirstHbt (HBT, KEY, LPVOID, QBTPOS);
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RC EXPORT_API FAR PASCAL RcLastHbt (HBT, KEY, LPVOID, QBTPOS);
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RC EXPORT_API FAR PASCAL RcNextPos (HBT, QBTPOS, QBTPOS);
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RC EXPORT_API FAR PASCAL RcOffsetPos (HBT, QBTPOS, LONG, LPLONG, QBTPOS);
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#if defined(__DEBUG)
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#define FValidPos(qbtpos) \
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((qbtpos) == NULL ? FALSE : (qbtpos)->bk != bkNil)
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#else /* !_DEBUG */
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#define FValidPos(qbtpos) ((qbtpos)->bk != bkNil)
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#endif /* !_DEBUG */
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// Callback passed to RcTraverseHbt
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typedef DWORD (FAR PASCAL *TRAVERSE_FUNC) (KEY key, BYTE FAR *rec, DWORD dwUser);
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#define TRAVERSE_DONE 0
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#define TRAVERSE_DELETE 1
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#define TRAVERSE_INTERRUPT 2
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RC EXPORT_API FAR PASCAL RcInsertHbt (HBT, KEY, LPVOID);
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RC EXPORT_API FAR PASCAL RcInsertMacBrsHbt(HBT, KEY, QV);
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RC EXPORT_API FAR PASCAL RcDeleteHbt (HBT, KEY);
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RC EXPORT_API FAR PASCAL RcUpdateHbt (HBT, KEY, LPVOID);
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RC EXPORT_API FAR PASCAL RcTraverseHbt (HBT, TRAVERSE_FUNC, DWORD);
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RC EXPORT_API FAR PASCAL RcPackHbt (HBT); /* >>>> unimplemented */
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RC EXPORT_API FAR PASCAL RcCheckHbt (HBT); /* >>>> unimplemented */
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RC EXPORT_API FAR PASCAL RcLeafBlockHbt (HBT, KEY, LPVOID); /* >>>> unimplemented */
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HBT EXPORT_API FAR PASCAL HbtInitFill (LPSTR, BTREE_PARAMS FAR *,
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LPVOID);
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RC EXPORT_API FAR PASCAL RcFillHbt (HBT, KEY, LPVOID);
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RC EXPORT_API FAR PASCAL RcFiniFillHbt (HBT);
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RC EXPORT_API FAR PASCAL RcFreeCacheHbt (HBT);
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RC EXPORT_API FAR PASCAL RcFlushHbt (HBT);
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RC EXPORT_API FAR PASCAL RcCloseOrFlushHbt(HBT, BOOL);
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RC EXPORT_API FAR PASCAL RcPos2Elev(HBT, QBTPOS, QBTELEV); /* >>>> unimplemented */
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RC FAR PASCAL RcElev2Pos(HBT, QBTELEV, QBTPOS); /* >>>> unimplemented */
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RC EXPORT_API FAR PASCAL RcGetBtreeInfo(HBT, LPBYTE, LPLONG, LPWORD);
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HF EXPORT_API PASCAL FAR HfOpenDiskBt(HFS, HBT, LPSTR, BYTE, LPVOID);
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/* Map utility functions */
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RC EXPORT_API FAR PASCAL RcCreateBTMapHfs(HFS, HBT, LPSTR);
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HMAPBT EXPORT_API FAR PASCAL HmapbtOpenHfs(HFS, LPSTR, LPVOID);
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RC EXPORT_API FAR PASCAL RcCloseHmapbt(HMAPBT);
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RC EXPORT_API FAR PASCAL RcIndexFromKeyHbt(HBT, HMAPBT, LPLONG, KEY);
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RC EXPORT_API FAR PASCAL RcKeyFromIndexHbt(HBT, HMAPBT, KEY, int, LONG);
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BOOL EXPORT_API FAR PASCAL FIsPrefix(HBT, KEY, KEY);
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VOID EXPORT_API FAR PASCAL BtreeSetCMap (HBT, LPVOID);
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VOID EXPORT_API FAR PASCAL BtreeSetLanguageFlag(HBT, int);
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VOID EXPORT_API FAR PASCAL BtreeSetSortFlag(HBT, int);
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/*****************************************************************************
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*
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* FS - file system (subfile.c, filesys.c)
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*
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*****************************************************************************/
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/* FS magic number */
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#define wFileSysMagic 0x5F3F // ?_ - the help icon (with shadow)
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//#define bFileSysVersion 2 // sorted free list
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/* Current FS version */
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#define bFileSysVersionOld (BYTE)3 // different sorting functions
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#define bFileSysVersion (BYTE)0x04 // M20 format quite different from M14
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/* flags for FlushHfs */
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#define fFSCloseFile (BYTE)0x01 // close fid associated with the FS
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#define fFSFreeBtreeCache (BYTE)0x02 // free the btree's cache
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/* seek origins */
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#define wFSSeekSet 0 // seek relative to start of file
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#define wFSSeekCur 1 // seek relative to current position
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#define wFSSeekEnd 2 // seek relative to end of file
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#define FSH_READWRITE (BYTE)0x01
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#define FSH_READONLY (BYTE)0x02
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#define FSH_CREATE (BYTE)0x04
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#define FSH_M14 (BYTE)0x08 // Not used really, since we return
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// an error if reading M14 to force
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// caller to use M14 APIs instead (we
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// could make this transparent to
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// user?)
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#define FSH_FASTUPDATE (BYTE)0x10 // System Btree is not copied to temp file
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// unless absolutely necessary
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#define FSH_DISKBTREE (BYTE)0x20 // System Btree is always copied to disk if
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// possible for speed. Btree may be very very
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// large, and this is NOT recommended for on-line
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#define HFOPEN_READWRITE (BYTE)0x01
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#define HFOPEN_READ (BYTE)0x02
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#define HFOPEN_CREATE (BYTE)0x04
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#define HFOPEN_SYSTEM (BYTE)0x08
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#define HFOPEN_NOTEMP (BYTE)0x10 // No temp file in r/w mode
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#define HFOPEN_FORCETEMP (BYTE)0x20 // Temp file created in r mode
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#define HFOPEN_ENABLELOGGING (BYTE)0x40
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#define FACCESS_READWRITE (BYTE)0x01
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#define FACCESS_READ (BYTE)0x02
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#define FACCESS_EXISTS (BYTE)0x04
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#define FACCESS_LIVESINFS (BYTE)0x08
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#define FACCESS_LIVESINTEMP (BYTE)0x10
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#define SFH_LOCKED (BYTE)0x01 // File may not be written to or deleted
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#define SFH_EXTRABYTES (BYTE)0x02 // (not used yet) Should use if extra bytes appear in header of file
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// file header should contain the number of header bytes as the first byte.
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#define SFH_COMPRESSED (BYTE)0x04 // (not used yet). Perhaps use to indicate an overall file compression
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#define SFH_LOGGING (BYTE)0x08
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#define SFH_INVALID (BYTE)0x80 // This is the value if file does not
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// really exist in fs yet.
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// These are the flags that users can manipulate
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#define SFH_FILEFLAGS (SFH_LOGGING|SFH_LOCKED)
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// Compatibility
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//#define fFSReadOnly (BYTE)0x01 // file (FS) is readonly
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//#define fFSOpenReadOnly (BYTE)0x02 // file (FS) is opened in readonly mode
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//#define fFSReadWrite (BYTE)0x00 // file (FS) is readwrite
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//#define fFSOpenReadWrite (BYTE)0x00 // file (FS) is opened in read/write mode
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//#define fFSOptCdRom (BYTE)0x20 // align file optimally for CDROM
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//#define fFSNoFlushDir (BYTE)0x40 // don't flush directory when closing
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#define fFSReadOnly HFOPEN_READ // file (FS) is readonly
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#define fFSOpenReadOnly HFOPEN_READ // file (FS) is opened in readonly mode
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#define fFSReadWrite HFOPEN_READWRITE // file (FS) is readwrite
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#define fFSOpenReadWrite HFOPEN_READWRITE // file (FS) is opened in read/write mode
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#define fFSOptCdRom 0x00 // align file optimally for CDROM
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#define fFSNoFlushDir 0x00 // don't flush directory when closing
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typedef HANDLE HSFB; // Handle to a SFB
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typedef BOOL (FAR PASCAL * PROGFUNC)(WORD);
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#define hfNil (short)0
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// @DOC INTERNAL API
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// @struct FS_PARAMS | File system parameters to be passed in to
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// <f HfsCreateFileSysFm>. Only the <p cbBlock> parameter is used right now.
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typedef struct _fs_params
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{
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USHORT wFreeListSize; // @field Free List Entries (0=default, else max entries in free list)
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USHORT cbBlock; // @field Size of directory btree block. Usually 1024 to 8192.
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} FS_PARAMS;
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typedef struct fsfilefind_tag
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{
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FILEOFFSET foSize;
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FILEOFFSET foStart;
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BYTE bFlags;
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char szFilename[256];
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int magic;
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BTPOS btpos;
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HFS hfs;
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} FSFILEFIND, FAR * LPFSFILEFIND;
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VOID EXPORT_API FAR PASCAL CleanErrorList (BOOL);
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VOID EXPORT_API FAR PASCAL MVFSShutDown (void);
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/* File System Operations */
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HFS PASCAL FAR EXPORT_API HfsCreateFileSysFm( FM, FS_PARAMS FAR *, LPERRB );
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RC PASCAL FAR EXPORT_API RcDestroyFileSysFm( FM );
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HFS PASCAL FAR EXPORT_API HfsOpenFm( FM, BYTE, LPERRB );
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RC PASCAL FAR EXPORT_API RcCloseHfs( HFS );
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RC PASCAL FAR EXPORT_API RcFlushHfs( HFS );
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BOOL PASCAL FAR EXPORT_API FHfsAccess(HFS hfs, BYTE bFlags);
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RC PASCAL FAR EXPORT_API RcFindFirstFile(HFS hfs, LPCSTR szFilename, FSFILEFIND * pfind);
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RC PASCAL FAR EXPORT_API RcFindNextFile(FSFILEFIND * pfind);
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#define VerifyHfs(hfs)
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/* File Operations */
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HF PASCAL FAR EXPORT_API HfCreateFileHfs( HFS, LPCSTR, BYTE, LPERRB );
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RC PASCAL FAR EXPORT_API RcUnlinkFileHfs( HFS, LPCSTR );
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HF PASCAL FAR EXPORT_API HfOpenHfs( HFS, LPCSTR, BYTE, LPERRB );
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HF PASCAL FAR EXPORT_API HfOpenHfsReserve( HFS, LPCSTR, BYTE, FILEOFFSET, LPERRB );
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RC PASCAL FAR EXPORT_API RcFlushHf( HF );
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RC PASCAL FAR EXPORT_API RcCloseHf( HF );
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LONG PASCAL FAR EXPORT_API LcbReadHf( HF, LPVOID, LONG, LPERRB );
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LONG PASCAL FAR EXPORT_API LcbWriteHf( HF, LPVOID, LONG, LPERRB );
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BOOL PASCAL FAR EXPORT_API FEofHf( HF, LPERRB );
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BOOL PASCAL FAR EXPORT_API FChSizeHf( HF, FILEOFFSET, LPERRB );
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BOOL PASCAL FAR EXPORT_API FAccessHfs( HFS, LPCSTR, BYTE, LPERRB );
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RC PASCAL FAR EXPORT_API RcAbandonHf( HF );
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RC PASCAL FAR EXPORT_API RcRenameFileHfs( HFS, LPCSTR, LPCSTR );
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BYTE PASCAL FAR EXPORT_API GetFileFlags(HFS, LPCSTR, LPERRB );
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RC PASCAL FAR EXPORT_API SetFileFlags(HFS, LPCSTR, BYTE );
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BOOL PASCAL FAR EXPORT_API FHfValid( HF );
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HFS PASCAL FAR EXPORT_API HfsGetFromHf( HF );
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RC PASCAL FAR EXPORT_API RcCopyDosFileHfs(HFS, LPCSTR, LPCSTR, BYTE, PROGFUNC );
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FILEOFFSET PASCAL FAR EXPORT_API FoTellHf( HF, LPERRB );
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FILEOFFSET PASCAL FAR EXPORT_API FoSeekHf(HF, FILEOFFSET, WORD, LPERRB);
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FILEOFFSET PASCAL FAR EXPORT_API FoSizeHf( HF, LPERRB );
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FILEOFFSET PASCAL FAR EXPORT_API FoOffsetHf(HF hf, LPERRB lperrb);
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#define VerifyHf(hf)
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// These functions require the FID type. They only make sense
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// if the caller already needs H_LLFILE.
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//#ifdef H_LLFILE
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//RC EXPORT_API FAR PASCAL RcLLInfoFromHf (HF, WORD, FID FAR *, LPLONG, LPLONG);
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//RC EXPORT_API FAR PASCAL RcLLInfoFromHfsSz (HFS, LPSTR, WORD, FID FAR *, LPLONG, LPLONG);
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//#endif // H_LLFILE
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/*****************************************************************************
|
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*
|
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* MediaView File Handling
|
|
*
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*****************************************************************************/
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BOOL EXPORT_API FAR PASCAL LooseFileCompare(LPSTR, LPSTR);
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FM EXPORT_API FAR PASCAL LocateFile(LPSTR, LPVOID);
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HANDLE EXPORT_API FAR PASCAL LocateDLL(LPSTR, LPVOID);
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RC EXPORT_API FAR PASCAL CopyOrReplaceFileToSubfile(HFS, LPSTR, LPSTR, LONG, BYTE, PROGFUNC, BOOL);
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#pragma pack() // avoid problems when Zp!=1
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#ifdef __cplusplus
|
|
}
|
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#endif
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#endif // __IMVFS_H__
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