WordDBCompress.cc File Reference

#include <stdlib.h>
#include <errno.h>
#include "db_int.h"
#include "db_page.h"
#include "lib.h"
#include "WordDBCompress.h"
#include "WordBitCompress.h"
#include "WordKeyInfo.h"
#include "WordKey.h"
#include "WordRecord.h"
#include "WordDB.h"
#include "HtMaxMin.h"

Go to the source code of this file.

Classes
class	WordDBEncoded
Defines
#define	WORD_CMPR_OVERHEAD   ((int)sizeof(unsigned char))
#define	WORD_CMPR_VAL_ARRAY_SIZE   (WORD_CMPR_VAL_LAST + 1)
#define	WORD_CMPR_VAL_ARRAY_SIZE_BITS   8
#define	WORD_CMPR_VAL_FIELDS   1
#define	WORD_CMPR_VAL_FLAGS   0
#define	WORD_CMPR_VAL_FLAGS_BITS   (WORD_CMPR_VAL_LAST + 1)
#define	WORD_CMPR_VAL_FLAGS_EMPTY   (1 << (WORD_CMPR_VAL_LAST + 2))
#define	WORD_CMPR_VAL_FLAGS_FIELD(n)   (1 << (WORD_CMPR_VAL_FIELDS + (n)))
#define	WORD_CMPR_VAL_FLAGS_NRECS   (1 << (WORD_CMPR_VAL_NRECS))
#define	WORD_CMPR_VAL_FLAGS_PGNO   (1 << (WORD_CMPR_VAL_PGNO))
#define	WORD_CMPR_VAL_FLAGS_PREFIX   (1 << (WORD_CMPR_VAL_PREFIX))
#define	WORD_CMPR_VAL_FLAGS_RECORD_EQ   (1 << (WORD_CMPR_VAL_LAST + 3))
#define	WORD_CMPR_VAL_FLAGS_RECORD_NO   (1 << (WORD_CMPR_VAL_LAST + 4))
#define	WORD_CMPR_VAL_FLAGS_RECORD_STR   (1 << (WORD_CMPR_VAL_LAST + 5))
#define	WORD_CMPR_VAL_FLAGS_RLENGTH   WORD_CMPR_VAL_FLAGS_PGNO
#define	WORD_CMPR_VAL_FLAGS_RVALUE   WORD_CMPR_VAL_FLAGS_NRECS
#define	WORD_CMPR_VAL_FLAGS_STRING   (1 << (WORD_CMPR_VAL_LAST + 1))
#define	WORD_CMPR_VAL_FLAGS_SUFFIX   (1 << (WORD_CMPR_VAL_SUFFIX))
#define	WORD_CMPR_VAL_LAST   WORD_CMPR_VAL_SUFFIX
#define	WORD_CMPR_VAL_NRECS   (WORD_CMPR_VAL_PGNO + 1)
#define	WORD_CMPR_VAL_PGNO   (WORD_CMPR_VAL_FIELDS + WORD_KEY_MAX_NFIELDS)
#define	WORD_CMPR_VAL_PREFIX   (WORD_CMPR_VAL_PGNO + 2)
#define	WORD_CMPR_VAL_RLENGTH   WORD_CMPR_VAL_PGNO
#define	WORD_CMPR_VAL_RVALUE   WORD_CMPR_VAL_NRECS
#define	WORD_CMPR_VAL_SUFFIX   (WORD_CMPR_VAL_PGNO + 3)
Functions
static void	cdb___db_pitem (PAGE *pagep, u_int32_t indx, u_int32_t nbytes, DBT *hdr, DBT *data)
static unsigned int	suffixlength (const String &a, const String &b)
int	WordDBCompress_compress_c (DB_ENV *, const u_int8_t *inbuff, int inbuff_length, u_int8_t **outbuffp, int *outbuff_lengthp, void *user_data)
int	WordDBCompress_uncompress_c (DB_ENV *, const u_int8_t *inbuff, int inbuff_length, u_int8_t *outbuff, int outbuff_length, void *user_data)