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1 | /* $Header: hash.h,v 3.0.1.1 90/08/09 03:51:34 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 3.0.1.1 90/08/09 03:51:34 lwall |
10 | * patch19: various MSDOS and OS/2 patches folded in |
11 | * |
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12 | * Revision 3.0 89/10/18 15:18:39 lwall |
13 | * 3.0 baseline |
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14 | * |
15 | */ |
16 | |
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17 | #define FILLPCT 80 /* don't make greater than 99 */ |
18 | #define DBM_CACHE_MAX 63 /* cache 64 entries for dbm file */ |
19 | /* (resident array acts as a write-thru cache)*/ |
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20 | |
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21 | #define COEFFSIZE (16 * 8) /* size of coeff array */ |
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22 | |
23 | typedef struct hentry HENT; |
24 | |
25 | struct hentry { |
26 | HENT *hent_next; |
27 | char *hent_key; |
28 | STR *hent_val; |
29 | int hent_hash; |
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30 | int hent_klen; |
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31 | }; |
32 | |
33 | struct htbl { |
34 | HENT **tbl_array; |
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35 | int tbl_max; /* subscript of last element of tbl_array */ |
36 | int tbl_dosplit; /* how full to get before splitting */ |
37 | int tbl_fill; /* how full tbl_array currently is */ |
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38 | int tbl_riter; /* current root of iterator */ |
39 | HENT *tbl_eiter; /* current entry of iterator */ |
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40 | SPAT *tbl_spatroot; /* list of spats for this package */ |
41 | #ifdef SOME_DBM |
42 | #ifdef NDBM |
43 | DBM *tbl_dbm; |
44 | #else |
45 | int tbl_dbm; |
46 | #endif |
47 | #endif |
48 | unsigned char tbl_coeffsize; /* is 0 for symbol tables */ |
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49 | }; |
50 | |
51 | STR *hfetch(); |
52 | bool hstore(); |
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53 | STR *hdelete(); |
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54 | HASH *hnew(); |
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55 | void hclear(); |
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56 | void hentfree(); |
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57 | int hiterinit(); |
58 | HENT *hiternext(); |
59 | char *hiterkey(); |
60 | STR *hiterval(); |
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61 | bool hdbmopen(); |
62 | void hdbmclose(); |
63 | bool hdbmstore(); |