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1 | /* $Header: hash.h,v 4.0 91/03/20 01:22:38 lwall Locked $ |
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2 | * |
3 | * Copyright (c) 1989, Larry Wall |
4 | * |
5 | * You may distribute under the terms of the GNU General Public License |
6 | * as specified in the README file that comes with the perl 3.0 kit. |
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7 | * |
8 | * $Log: hash.h,v $ |
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9 | * Revision 4.0 91/03/20 01:22:38 lwall |
10 | * 4.0 baseline. |
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11 | * |
12 | */ |
13 | |
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14 | #define FILLPCT 80 /* don't make greater than 99 */ |
15 | #define DBM_CACHE_MAX 63 /* cache 64 entries for dbm file */ |
16 | /* (resident array acts as a write-thru cache)*/ |
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17 | |
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18 | #define COEFFSIZE (16 * 8) /* size of coeff array */ |
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19 | |
20 | typedef struct hentry HENT; |
21 | |
22 | struct hentry { |
23 | HENT *hent_next; |
24 | char *hent_key; |
25 | STR *hent_val; |
26 | int hent_hash; |
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27 | int hent_klen; |
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28 | }; |
29 | |
30 | struct htbl { |
31 | HENT **tbl_array; |
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32 | int tbl_max; /* subscript of last element of tbl_array */ |
33 | int tbl_dosplit; /* how full to get before splitting */ |
34 | int tbl_fill; /* how full tbl_array currently is */ |
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35 | int tbl_riter; /* current root of iterator */ |
36 | HENT *tbl_eiter; /* current entry of iterator */ |
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37 | SPAT *tbl_spatroot; /* list of spats for this package */ |
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38 | char *tbl_name; /* name, if a symbol table */ |
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39 | #ifdef SOME_DBM |
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40 | #ifdef HAS_GDBM |
41 | GDBM_FILE tbl_dbm; |
42 | #else |
43 | #ifdef HAS_NDBM |
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44 | DBM *tbl_dbm; |
45 | #else |
46 | int tbl_dbm; |
47 | #endif |
48 | #endif |
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49 | #endif |
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50 | unsigned char tbl_coeffsize; /* is 0 for symbol tables */ |
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51 | }; |
52 | |
53 | STR *hfetch(); |
54 | bool hstore(); |
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55 | STR *hdelete(); |
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56 | HASH *hnew(); |
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57 | void hclear(); |
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58 | void hentfree(); |
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59 | int hiterinit(); |
60 | HENT *hiternext(); |
61 | char *hiterkey(); |
62 | STR *hiterval(); |
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63 | bool hdbmopen(); |
64 | void hdbmclose(); |
65 | bool hdbmstore(); |