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/* $Id: plzfile.h,v 3.0 1993/06/07 22:43:33 klute Exp klute $ */
/*
* Copyright 1993 Rainer Klute <klute@irb.informatik.uni-dortmund.de>
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation. The author makes no representations about the suitability
* of this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*/
#include "utils.h"
#if !defined (PLZFILE_H)
#define PLZFILE_H
typedef struct Range
{
long first;
long last;
}
Range;
#define ZIPBUFS 2
typedef struct PlzFile
{
FILE *f;
int recordLength;
long size;
long entries;
int rsize, bsize, rnum, bnum;
int nindex;
long *index;
int *keypos, *keylen;
char **keys;
char *obuf[ZIPBUFS];
int bufstat[ZIPBUFS];
int nextbuf;
int zip;
}
PlzFile;
#define SearchFirst 0
#define SearchLast 1
#define SearchAny 2
extern long BinarySearch (FILE *f, int recordLength, long min, long max,
int keyPos, int keyLength, char *searchKey,
long *unequalMin, long *unequalMax, int searchWhat,
int refKeyPos, Boolean RecordRead (char *),
PlzFile *plzFile);
extern Range *BinarySearchAll (FILE *f, int recordLength, long min, long max,
int keyPos, int keyLength, char *searchKey,
int refKeyPos, Boolean RecordRead (char *),
PlzFile *plzFile);
extern void OpenPlzFile (PlzFile *plzFile, char *plzFileName);
extern void fgetr (void *r, int rec, PlzFile *plzFile);
#define putlong(l,f) \
{ \
putc (l, f); \
putc (l >> 8, f); \
putc (l >> 16, f); \
putc (l >> 24, f); \
}
#define getlong(l,f) \
{ \
l = getc (f) & 0xff; \
l |= (getc (f) & 0xff) << 8; \
l |= (getc (f) & 0xff) << 16; \
l |= (getc (f) & 0xff) << 24; \
}
#endif
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