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/* ----- RSTBase.h ----- */
#ifndef __RSTBase_h
#define __RSTBase_h
/*** Begin ----- naming rules for structured types ----- **********/
/*
Non vector types are always called "typ<..>",
Exceptions:
Side, rstree.
References to non vector types are always called "ref<..>".
Exceptions:
RSTREE.
Vector types are always called <..>Array.
Exceptions:
RSTName, typpoint, typrect, typfixblock,
and the internal arrays of the R*-tree as
typpath, typentrynumbs, typpagenrs, typflagarray, typpagecountarr.
*/
/*** End ----- naming rules for structured types ----- **********/
/* constants */
#define SIZEfixblock 512
#define maxnum (((SIZEfixblock-2*sizeof(int)) / sizeof(int))-1)
#define maxentries MaxNumbOfEntriesPerPage
#define EntryRange (maxentries+sizeof(int))
#define chainlen 42 /* 3^ 40 = 12,157,665,459,056,928,801 */
#define datasuffix ".Data"
#define dirPDsuffix ".DirPD"
#define dataPDsuffix ".DataPD"
#define STDMODE 0644
#define paramblocknumb 0
#define firstPDblocknumb (paramblocknumb+1)
#define rootblocknumb 0
/* types */
typedef typinterval *refinterval;
typedef char RSTName[MaxNameLength];
typedef double typpoint[NumbOfDim];
typedef double ValueArray[EntryRange];
typedef int IndexArray[EntryRange];
typedef byte ByteArray[EntryRange];
typedef typrect RectArray[EntryRange];
typedef typrect NbrsArray[EntryRange];
typedef typpoint PointArray[EntryRange];
typedef enum {
low,
high
} Side;
typedef struct {
typrect rect;
int ptrtosub;
PADDING_32_BITS;
typdirinfo info;
} typDIRent, *refDIRent; /* inner entry */
typedef struct {
typrect rect;
typinfo info;
} typDATAent, *refDATAent; /* data entry */
typedef union {
typDIRent DIR;
typDATAent DATA;
} typentry, *refentry; /* universal entry */
/* If typentry v; Then */
/* every access to rect by v.DIR.rect */
/* End */
/* hope the compiler-designers agree. */
typedef typDIRent typDIRentries[EntryRange];
typedef typDATAent typDATAentries[EntryRange];
typedef struct {
int nofentries;
PADDING_32_BITS;
typDIRentries entries; /* 0 .. nofentries-1 !! */
} typDIRnode, *refDIRnode; /* inner node */
typedef struct {
int nofentries;
typDATAentries entries; /* 0 .. nofentries-1 !! */
} typDATAnode, *refDATAnode; /* data node */
typedef union {
typDIRnode DIR;
typDATAnode DATA;
} typnode, *refnode; /* universal node */
/* If typnode v; Then */
/* every access to nofentries by v.DIR.nofentries */
/* End */
/* hope the compiler-designers agree. */
typedef refnode typpath[chainlen+1]; /* 1 .. height !! */
typedef int typentrynumbs[chainlen+1]; /* 1 .. height !! */
typedef int typpagenrs[chainlen+1]; /* 1 .. height !! */
typedef boolean typflagarray[chainlen+1]; /* 1 .. height !! */
typedef byte typfixblock[SIZEfixblock];
typedef struct {
int childnr;
int nofnumbers;
int number[maxnum+1]; /* 0 + [1 .. maxnum] !! */
} typpagedir, *refpagedir;
typedef union {
typpagedir _; /* call the intrinsics "_" */
typfixblock fixblock; /* adjust to SIZEfixblock */
} typPDblock, *refPDblock;
typedef int typpagecountarr[chainlen+1]; /* 1 .. height !! */
typedef struct {
boolean unique;
int height;
int SIZE_DIRnofentries, SIZE_DATAnofentries;
int SIZEinfo;
int direntrylen, dataentrylen;
int nbrsexam;
int reinstpercent;
int minfillpercent;
int dirreinsertqty, datareinsertqty;
int pagelen;
int dirM, dirMwords, dirm;
int dataM, dataMwords, datam;
int maxdim;
int dirpagecount, datapagecount, recordcount;
typpagecountarr pagecountarr;
} typparameters, *refparameters;
typedef union {
typparameters _; /* call the intrinsics "_" */
typfixblock fixblock; /* adjust to SIZEfixblock */
} typparamblock, *refparamblock;
typedef struct {
boolean countflag;
int dirvisitcount, datavisitcount;
int dirreadcount, datareadcount;
int dirmodifycount, datamodifycount;
int dirwritecount, datawritecount;
} typcount, *refcount;
typedef struct {
File f;
int bl;
} typfiledesc;
typedef struct {
int dirnodelen, datanodelen;
typpath N, NInst, NDel;
typentrynumbs E, EInst;
typpagenrs P;
typflagarray Nmodified, ReInsert;
typPDblock dirpagedir, datapagedir;
typparamblock parameters;
typcount count;
boolean RSTDone;
PADDING_32_BITS;
refnode helpdirnode, helpdatanode, Ntosplit, Nsibling;
typfiledesc dir, data, dirPD, dataPD;
RSTName dirname;
boolean readonly;
} rstree;
/****************************************************************/
/* begin **** --- types to check for alignment problems --- *****/
typedef
typDIRent typ2DIRentries[2];
typedef
typDATAent typ2DATAentries[2];
typedef
struct {
int nofentries;
PADDING_32_BITS;
typ2DIRentries entries;
} typDIRnodeOf2; /* inner node containing 2 entries */
typedef
struct {
int nofentries;
typ2DATAentries entries;
} typDATAnodeOf2; /* data node containing 2 entries */
typedef
typDIRent typ3DIRentries[3];
typedef
typDATAent typ3DATAentries[3];
typedef
struct {
int nofentries;
PADDING_32_BITS;
typ3DIRentries entries;
} typDIRnodeOf3; /* inner node containing 3 entries */
typedef
struct {
int nofentries;
typ3DATAentries entries;
} typDATAnodeOf3; /* data node containing 3 entries */
/* end **** --- types to check for alignment problems --- *****/
/****************************************************************/
#endif /* !__RSTBase_h */
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