| 5 |
|
* Table lookup routines |
| 6 |
|
*/ |
| 7 |
|
|
| 8 |
– |
/* ==================================================================== |
| 9 |
– |
* The Radiance Software License, Version 1.0 |
| 10 |
– |
* |
| 11 |
– |
* Copyright (c) 1990 - 2002 The Regents of the University of California, |
| 12 |
– |
* through Lawrence Berkeley National Laboratory. All rights reserved. |
| 13 |
– |
* |
| 14 |
– |
* Redistribution and use in source and binary forms, with or without |
| 15 |
– |
* modification, are permitted provided that the following conditions |
| 16 |
– |
* are met: |
| 17 |
– |
* |
| 18 |
– |
* 1. Redistributions of source code must retain the above copyright |
| 19 |
– |
* notice, this list of conditions and the following disclaimer. |
| 20 |
– |
* |
| 21 |
– |
* 2. Redistributions in binary form must reproduce the above copyright |
| 22 |
– |
* notice, this list of conditions and the following disclaimer in |
| 23 |
– |
* the documentation and/or other materials provided with the |
| 24 |
– |
* distribution. |
| 25 |
– |
* |
| 26 |
– |
* 3. The end-user documentation included with the redistribution, |
| 27 |
– |
* if any, must include the following acknowledgment: |
| 28 |
– |
* "This product includes Radiance software |
| 29 |
– |
* (http://radsite.lbl.gov/) |
| 30 |
– |
* developed by the Lawrence Berkeley National Laboratory |
| 31 |
– |
* (http://www.lbl.gov/)." |
| 32 |
– |
* Alternately, this acknowledgment may appear in the software itself, |
| 33 |
– |
* if and wherever such third-party acknowledgments normally appear. |
| 34 |
– |
* |
| 35 |
– |
* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
| 36 |
– |
* and "The Regents of the University of California" must |
| 37 |
– |
* not be used to endorse or promote products derived from this |
| 38 |
– |
* software without prior written permission. For written |
| 39 |
– |
* permission, please contact [email protected]. |
| 40 |
– |
* |
| 41 |
– |
* 5. Products derived from this software may not be called "Radiance", |
| 42 |
– |
* nor may "Radiance" appear in their name, without prior written |
| 43 |
– |
* permission of Lawrence Berkeley National Laboratory. |
| 44 |
– |
* |
| 45 |
– |
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| 46 |
– |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 47 |
– |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 48 |
– |
* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
| 49 |
– |
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 50 |
– |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 51 |
– |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 52 |
– |
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 53 |
– |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 54 |
– |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 55 |
– |
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 56 |
– |
* SUCH DAMAGE. |
| 57 |
– |
* ==================================================================== |
| 58 |
– |
* |
| 59 |
– |
* This software consists of voluntary contributions made by many |
| 60 |
– |
* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
| 61 |
– |
* information on Lawrence Berkeley National Laboratory, please see |
| 62 |
– |
* <http://www.lbl.gov/>. |
| 63 |
– |
*/ |
| 64 |
– |
|
| 8 |
|
#include <stdio.h> |
| 9 |
|
#include <stdlib.h> |
| 10 |
+ |
#include <string.h> |
| 11 |
+ |
|
| 12 |
|
#include "lookup.h" |
| 13 |
|
|
| 69 |
– |
#ifdef NOSTRUCTASS |
| 70 |
– |
#define copystruct(d,s) bcopy((char *)(s),(char *)(d),sizeof(*(d))) |
| 71 |
– |
#else |
| 72 |
– |
#define copystruct(d,s) (*(d) = *(s)) |
| 73 |
– |
#endif |
| 14 |
|
|
| 75 |
– |
|
| 15 |
|
int |
| 16 |
< |
lu_init(tbl, nel) /* initialize tbl for at least nel elements */ |
| 17 |
< |
register LUTAB *tbl; |
| 18 |
< |
int nel; |
| 16 |
> |
lu_init( /* initialize tbl for at least nel elements */ |
| 17 |
> |
LUTAB *tbl, |
| 18 |
> |
int nel |
| 19 |
> |
) |
| 20 |
|
{ |
| 21 |
|
static int hsiztab[] = { |
| 22 |
|
31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381, |
| 23 |
|
32749, 65521, 131071, 262139, 524287, 1048573, 2097143, |
| 24 |
|
4194301, 8388593, 0 |
| 25 |
|
}; |
| 26 |
< |
register int *hsp; |
| 26 |
> |
int *hsp; |
| 27 |
|
|
| 28 |
|
nel += nel>>1; /* 66% occupancy */ |
| 29 |
|
for (hsp = hsiztab; *hsp; hsp++) |
| 40 |
|
|
| 41 |
|
|
| 42 |
|
unsigned long |
| 43 |
< |
lu_shash(s) /* hash a nul-terminated string */ |
| 44 |
< |
char *s; |
| 43 |
> |
lu_shash( /* hash a nul-terminated string */ |
| 44 |
> |
const char *s |
| 45 |
> |
) |
| 46 |
|
{ |
| 47 |
|
static unsigned char shuffle[256] = { |
| 48 |
|
0, 157, 58, 215, 116, 17, 174, 75, 232, 133, 34, |
| 70 |
|
106, 7, 164, 65, 222, 123, 24, 181, 82, 239, 140, |
| 71 |
|
41, 198, 99 |
| 72 |
|
}; |
| 73 |
< |
register int i = 0; |
| 74 |
< |
register unsigned long h = 0; |
| 75 |
< |
register unsigned char *t = (unsigned char *)s; |
| 73 |
> |
int i = 0; |
| 74 |
> |
unsigned long h = 0; |
| 75 |
> |
unsigned const char *t = (unsigned const char *)s; |
| 76 |
|
|
| 77 |
|
while (*t) |
| 78 |
|
h ^= (unsigned long)shuffle[*t++] << ((i+=11) & 0xf); |
| 82 |
|
|
| 83 |
|
|
| 84 |
|
LUENT * |
| 85 |
< |
lu_find(tbl, key) /* find a table entry */ |
| 86 |
< |
register LUTAB *tbl; |
| 87 |
< |
char *key; |
| 85 |
> |
lu_find( /* find a table entry */ |
| 86 |
> |
LUTAB *tbl, |
| 87 |
> |
const char *key |
| 88 |
> |
) |
| 89 |
|
{ |
| 90 |
|
unsigned long hval; |
| 91 |
|
int i, n; |
| 92 |
< |
register int ndx; |
| 93 |
< |
register LUENT *le; |
| 92 |
> |
int ndx; |
| 93 |
> |
LUENT *le; |
| 94 |
|
/* look up object */ |
| 95 |
|
if (tbl->tsiz == 0 && !lu_init(tbl, 1)) |
| 96 |
|
return(NULL); |
| 126 |
|
* recursive call to lu_find(). |
| 127 |
|
*/ |
| 128 |
|
while (ndx--) |
| 129 |
< |
if (le[ndx].key != NULL) |
| 129 |
> |
if (le[ndx].key != NULL) { |
| 130 |
|
if (le[ndx].data != NULL) |
| 131 |
< |
copystruct(lu_find(tbl,le[ndx].key), &le[ndx]); |
| 131 |
> |
*lu_find(tbl,le[ndx].key) = le[ndx]; |
| 132 |
|
else if (tbl->freek != NULL) |
| 133 |
|
(*tbl->freek)(le[ndx].key); |
| 134 |
+ |
} |
| 135 |
|
free((void *)le); |
| 136 |
|
goto tryagain; /* should happen only once! */ |
| 137 |
|
} |
| 138 |
|
|
| 139 |
|
|
| 140 |
|
void |
| 141 |
< |
lu_delete(tbl, key) /* delete a table entry */ |
| 142 |
< |
register LUTAB *tbl; |
| 143 |
< |
char *key; |
| 141 |
> |
lu_delete( /* delete a table entry */ |
| 142 |
> |
LUTAB *tbl, |
| 143 |
> |
const char *key |
| 144 |
> |
) |
| 145 |
|
{ |
| 146 |
< |
register LUENT *le; |
| 146 |
> |
LUENT *le; |
| 147 |
|
|
| 148 |
|
if ((le = lu_find(tbl, key)) == NULL) |
| 149 |
|
return; |
| 157 |
|
|
| 158 |
|
|
| 159 |
|
int |
| 160 |
< |
lu_doall(tbl, f) /* loop through all valid table entries */ |
| 161 |
< |
register LUTAB *tbl; |
| 162 |
< |
int (*f)(); |
| 160 |
> |
lu_doall( /* loop through all valid table entries */ |
| 161 |
> |
const LUTAB *tbl, |
| 162 |
> |
/* int (*f)(const LUENT *, void *) */ |
| 163 |
> |
lut_doallf_t *f, |
| 164 |
> |
void *p |
| 165 |
> |
) |
| 166 |
|
{ |
| 167 |
|
int rval = 0; |
| 168 |
< |
register LUENT *tp; |
| 168 |
> |
const LUENT *tp; |
| 169 |
|
|
| 170 |
|
for (tp = tbl->tabl + tbl->tsiz; tp-- > tbl->tabl; ) |
| 171 |
< |
if (tp->data != NULL) |
| 172 |
< |
if (f != NULL) |
| 173 |
< |
rval += (*f)(tp); |
| 174 |
< |
else |
| 171 |
> |
if (tp->data != NULL) { |
| 172 |
> |
if (f != NULL) { |
| 173 |
> |
int r = (*f)(tp, p); |
| 174 |
> |
if (r < 0) |
| 175 |
> |
return(-1); |
| 176 |
> |
rval += r; |
| 177 |
> |
} else |
| 178 |
|
rval++; |
| 179 |
+ |
} |
| 180 |
|
return(rval); |
| 181 |
|
} |
| 182 |
|
|
| 183 |
|
|
| 184 |
|
void |
| 185 |
< |
lu_done(tbl) /* free table and contents */ |
| 186 |
< |
register LUTAB *tbl; |
| 185 |
> |
lu_done( /* free table and contents */ |
| 186 |
> |
LUTAB *tbl |
| 187 |
> |
) |
| 188 |
|
{ |
| 189 |
< |
register LUENT *tp; |
| 189 |
> |
LUENT *tp; |
| 190 |
|
|
| 191 |
|
if (!tbl->tsiz) |
| 192 |
|
return; |
