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/* $RCSfile: hash.h,v $$Revision: 4.0.1.1 $$Date: 91/06/07 11:10:33 $
*
* Copyright (c) 1991, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
* $Log: hash.h,v $
* Revision 4.0.1.1 91/06/07 11:10:33 lwall
* patch4: new copyright notice
*
* Revision 4.0 91/03/20 01:22:38 lwall
* 4.0 baseline.
*
*/
#define FILLPCT 80 /* don't make greater than 99 */
#define DBM_CACHE_MAX 63 /* cache 64 entries for dbm file */
/* (resident array acts as a write-thru cache)*/
#define COEFFSIZE (16 * 8) /* size of coeff array */
typedef struct hentry HENT;
struct hentry {
HENT *hent_next;
char *hent_key;
STR *hent_val;
int hent_hash;
int hent_klen;
};
struct htbl {
HENT **tbl_array;
int tbl_max; /* subscript of last element of tbl_array */
int tbl_dosplit; /* how full to get before splitting */
int tbl_fill; /* how full tbl_array currently is */
int tbl_riter; /* current root of iterator */
HENT *tbl_eiter; /* current entry of iterator */
SPAT *tbl_spatroot; /* list of spats for this package */
char *tbl_name; /* name, if a symbol table */
#ifdef SOME_DBM
#ifdef HAS_GDBM
GDBM_FILE tbl_dbm;
#else
#ifdef HAS_NDBM
DBM *tbl_dbm;
#else
int tbl_dbm;
#endif
#endif
#endif
unsigned char tbl_coeffsize; /* is 0 for symbol tables */
};
STR *hfetch();
bool hstore();
STR *hdelete();
HASH *hnew();
void hclear();
void hentfree();
int hiterinit();
HENT *hiternext();
char *hiterkey();
STR *hiterval();
bool hdbmopen();
void hdbmclose();
bool hdbmstore();
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