#ifndef __FILEHANDLE300_H__

typedef struct _FHANDLE FHANDLE, *PFHANDLE;
typedef struct _DSTREAM DSTREAM, *PDSTREAM;
typedef struct _VOLUME VOLUME, *PVOLUME;
typedef struct _BUF BUF, *PBUF;

typedef struct _STM_DLINK {
    PDSTREAM    pstmNext;       // ptr to next item in list
    PDSTREAM    pstmPrev;       // ptr to previous item in list
} STM_DLINK, *PSTM_DLINK;
typedef struct _FH_DLINK {
    PFHANDLE    pfhNext;        // ptr to next item in list
    PFHANDLE    pfhPrev;        // ptr to previous item in list
} FH_DLINK, *PFH_DLINK;


struct _FHANDLE {
    FH_DLINK    fh_dlOpenHandles;
    PDSTREAM    fh_pstm;        // DSTREAM for the file
    BYTE        fh_flags;       // handle status flags (see FHF_*)
    BYTE        fh_mode;        // file access & sharing modes
    WORD        fh_pad;
    DWORD       fh_pos;         // current file position
    HANDLE      fh_h;           // kernel handle to this FHANDLE
    HANDLE      fh_hProc;       // process that opened the file
};
typedef struct _DSID {          // structure for unique data stream IDs (similar to OIDs)
    DWORD       sid_ordDir;     // ordinal in directory of stream's DIRENTRY
    DWORD       sid_clusDir;    // cluster of dir containing stream's DIRENTRY
} DSID;
typedef DSID *PDSID;

typedef struct _RUN {
    DWORD       r_start;        // starting byte position of run
    DWORD       r_end;          // ending byte of run + 1
    DWORD       r_blk;          // first block of run
    DWORD       r_clusThis;     // first cluster of this run
    DWORD       r_clusNext;     // next cluster after this run
    DWORD       r_clusPrev;     // cluster preceding this run (0 if none)
} RUN, *PRUN;

#define OEMNAMESIZE             11
struct _DSTREAM {
    STM_DLINK   s_dlOpenStreams;// linkage for v_dlOpenStreams
    FH_DLINK    s_dlOpenHandles;// list of FHANDLE's or SHANDLE's
    PVOLUME     s_pvol;         // VOLUME the DSTREAM is open on
    long        s_refs;         // usage count for the stream
    WORD        s_flags;        // stream status flags (see STF_*)
    WORD        s_cwPath;       // # characters in path to this stream (excluding NULL)
    RUN         s_run;          // run info from current/last operation
    PBUF        s_pbufCur;      // pointer to stream's current buffer, if any
    DWORD       s_offbufCur;    // stream offset associated with current buffer
    DWORD       s_size;         // length of the stream
    CRITICAL_SECTION s_cs;      // critical section for this stream
#ifdef TFAT
    PDSTREAM	s_pstmParent;	// parent stream: TFAT only
#endif
//
//  Beginning of portion that actually relates to non-STF_VOLUME streams only!
//  (actually, s_cwPath belongs down here as well, but since it's a WORD, it fits
//  better up above)
//
    DSID        s_sid;          // unique stream ID
    DSID        s_sidParent;    // unique stream ID for parent
    DWORD       s_offDir;       // offset in block of stream's DIRENTRY
    DWORD       s_blkDir;       // block of dir containing stream's DIRENTRY
    DWORD       s_clusFirst;    // first cluster in stream
    FILETIME    s_ftCreate;     // creation time from DIRENTRY
    FILETIME    s_ftAccess;     // last access time from DIRENTRY
    FILETIME    s_ftWrite;      // last write time from DIRENTRY
    BYTE        s_attr;         // file attribute byte
    BYTE        s_achOEM[OEMNAMESIZE+1];
};

#define __FILEHANDLE300_H__
#endif