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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include "rtl/locale.h"
21 :
22 : #include "osl/diagnose.h"
23 : #include "rtl/alloc.h"
24 :
25 : #include "internal/rtllifecycle.h"
26 :
27 : static sal_Int32 RTL_HASHTABLE_SIZE[] =
28 : {
29 : 7, 31, 127, 251, 509, 1021, 2039, 4093
30 : };
31 :
32 : struct RTL_HASHENTRY
33 : {
34 : rtl_Locale* Entry;
35 : RTL_HASHENTRY* Next;
36 : };
37 :
38 : struct RTL_HASHTABLE
39 : {
40 : sal_Int8 iSize;
41 : sal_Int32 Size;
42 : sal_Int32 Elements;
43 : RTL_HASHENTRY** Table;
44 : };
45 :
46 : static RTL_HASHTABLE* g_pLocaleTable = NULL;
47 :
48 : static rtl_Locale* g_pDefaultLocale = NULL;
49 :
50 : /*************************************************************************
51 : */
52 1249 : extern "C" void rtl_hashentry_destroy(RTL_HASHENTRY* entry)
53 : {
54 1249 : rtl_uString_release(entry->Entry->Language);
55 1249 : rtl_uString_release(entry->Entry->Country);
56 1249 : rtl_uString_release(entry->Entry->Variant);
57 1249 : if (entry->Next)
58 0 : rtl_hashentry_destroy(entry->Next);
59 :
60 1249 : rtl_freeMemory(entry->Entry);
61 1249 : rtl_freeMemory(entry);
62 1249 : }
63 :
64 1247 : extern "C" void rtl_hashtable_destroy(RTL_HASHTABLE* table)
65 : {
66 1247 : sal_Int32 size = 0;
67 :
68 1247 : if (!table)
69 1247 : return;
70 :
71 1247 : size = table->Size;
72 :
73 41151 : while (size)
74 : {
75 38657 : if (table->Table[size - 1])
76 1249 : rtl_hashentry_destroy(table->Table[size - 1]);
77 38657 : size--;
78 : }
79 :
80 1247 : rtl_freeMemory(table->Table);
81 1247 : rtl_freeMemory(table);
82 : }
83 :
84 1247 : extern "C" void rtl_hashtable_init(RTL_HASHTABLE** table, sal_Int8 sizeIndex)
85 : {
86 1247 : sal_Int32 nSize = RTL_HASHTABLE_SIZE[sizeIndex];
87 :
88 1247 : if (*table)
89 0 : rtl_hashtable_destroy(*table);
90 :
91 1247 : *table = (RTL_HASHTABLE*)rtl_allocateMemory( sizeof(RTL_HASHTABLE) );
92 :
93 1247 : (*table)->iSize = sizeIndex;
94 1247 : (*table)->Size = nSize;
95 1247 : (*table)->Elements = 0;
96 1247 : (*table)->Table = (RTL_HASHENTRY**)rtl_allocateMemory( (*table)->Size * sizeof(RTL_HASHENTRY*) );
97 :
98 41151 : while (nSize)
99 : {
100 38657 : (*table)->Table[nSize - 1] = NULL;
101 38657 : nSize--;
102 : }
103 1247 : }
104 :
105 2514 : extern "C" sal_Int32 rtl_hashfunc(RTL_HASHTABLE* table, sal_Int32 key)
106 : {
107 2514 : return ( (sal_uInt32) key % table->Size);
108 : }
109 :
110 : extern "C" sal_Bool rtl_hashtable_grow(RTL_HASHTABLE** table);
111 :
112 1249 : extern "C" rtl_Locale* rtl_hashtable_add(RTL_HASHTABLE** table, rtl_Locale* value)
113 : {
114 1249 : sal_Int32 key = 0;
115 :
116 1249 : if (!(*table))
117 0 : return NULL;
118 :
119 1249 : if ((*table)->Elements > ((*table)->Size / 2))
120 0 : rtl_hashtable_grow(table);
121 :
122 1249 : key = rtl_hashfunc(*table, value->HashCode);
123 :
124 1249 : if (!(*table)->Table[key])
125 : {
126 1249 : RTL_HASHENTRY *newEntry = (RTL_HASHENTRY*)rtl_allocateMemory( sizeof(RTL_HASHENTRY) );
127 1249 : newEntry->Entry = value;
128 1249 : newEntry->Next = NULL;
129 1249 : (*table)->Table[key] = newEntry;
130 1249 : (*table)->Elements++;
131 1249 : return NULL;
132 : } else
133 : {
134 0 : RTL_HASHENTRY *pEntry = (*table)->Table[key];
135 0 : RTL_HASHENTRY *newEntry = NULL;
136 :
137 0 : while (pEntry)
138 : {
139 0 : if (value->HashCode == pEntry->Entry->HashCode)
140 0 : return pEntry->Entry;
141 :
142 0 : if (!pEntry->Next)
143 0 : break;
144 :
145 0 : pEntry = pEntry->Next;
146 : }
147 :
148 0 : newEntry = (RTL_HASHENTRY*)rtl_allocateMemory( sizeof(RTL_HASHENTRY) );
149 0 : newEntry->Entry = value;
150 0 : newEntry->Next = NULL;
151 0 : pEntry->Next = newEntry;
152 0 : (*table)->Elements++;
153 0 : return NULL;
154 : }
155 : }
156 :
157 0 : sal_Bool rtl_hashtable_grow(RTL_HASHTABLE** table)
158 : {
159 0 : RTL_HASHTABLE* pNewTable = NULL;
160 0 : sal_Int32 i = 0;
161 :
162 0 : rtl_hashtable_init(&pNewTable, (sal_Int8)((*table)->iSize + 1));
163 :
164 0 : while (i < (*table)->Size)
165 : {
166 0 : if ((*table)->Table[i])
167 : {
168 : RTL_HASHENTRY *pNext;
169 0 : RTL_HASHENTRY *pEntry = (*table)->Table[i];
170 :
171 0 : rtl_hashtable_add(&pNewTable, pEntry->Entry);
172 :
173 0 : while (pEntry->Next)
174 : {
175 0 : rtl_hashtable_add(&pNewTable, pEntry->Next->Entry);
176 0 : pNext = pEntry->Next;
177 0 : rtl_freeMemory(pEntry);
178 0 : pEntry = pNext;
179 : }
180 :
181 0 : rtl_freeMemory(pEntry);
182 : }
183 0 : i++;
184 : }
185 :
186 0 : rtl_freeMemory((*table)->Table);
187 0 : rtl_freeMemory((*table));
188 0 : (*table) = pNewTable;
189 :
190 0 : return sal_True;
191 : }
192 :
193 1265 : extern "C" sal_Bool rtl_hashtable_find(RTL_HASHTABLE * table, sal_Int32 key, sal_Int32 hashCode, rtl_Locale** pValue)
194 : {
195 1265 : if (!table)
196 0 : return sal_False;
197 :
198 1265 : if (table->Table[key])
199 : {
200 16 : RTL_HASHENTRY *pEntry = table->Table[key];
201 :
202 32 : while (pEntry && hashCode != pEntry->Entry->HashCode)
203 0 : pEntry = pEntry->Next;
204 :
205 16 : if (pEntry)
206 16 : *pValue = pEntry->Entry;
207 : else
208 0 : return sal_False;
209 : } else
210 1249 : return sal_False;
211 :
212 16 : return sal_True;
213 : }
214 :
215 : /*************************************************************************
216 : * rtl_locale_init
217 : */
218 1247 : void rtl_locale_init()
219 : {
220 : OSL_ASSERT(g_pLocaleTable == 0);
221 1247 : rtl_hashtable_init(&g_pLocaleTable, 1);
222 1247 : }
223 :
224 : /*************************************************************************
225 : * rtl_locale_fini
226 : */
227 1247 : void rtl_locale_fini()
228 : {
229 1247 : if (g_pLocaleTable != 0)
230 : {
231 1247 : rtl_hashtable_destroy (g_pLocaleTable);
232 1247 : g_pLocaleTable = 0;
233 : }
234 1247 : }
235 :
236 : /*************************************************************************
237 : * rtl_locale_register
238 : */
239 1265 : rtl_Locale * SAL_CALL rtl_locale_register( const sal_Unicode * language, const sal_Unicode * country, const sal_Unicode * variant )
240 : {
241 1265 : sal_Unicode c = 0;
242 1265 : rtl_uString* sLanguage = NULL;
243 1265 : rtl_uString* sCountry = NULL;
244 1265 : rtl_uString* sVariant = NULL;
245 1265 : rtl_Locale *newLocale = NULL;
246 1265 : sal_Int32 hashCode = -1;
247 1265 : sal_Int32 key = 0;
248 :
249 1265 : if ( !country )
250 0 : country = &c;
251 1265 : if ( !variant )
252 0 : variant = &c;
253 :
254 1265 : ensureLocaleSingleton();
255 1265 : if (!g_pLocaleTable)
256 0 : return NULL;
257 :
258 1265 : hashCode = rtl_ustr_hashCode(language) ^ rtl_ustr_hashCode(country) ^ rtl_ustr_hashCode(variant);
259 1265 : key = rtl_hashfunc(g_pLocaleTable, hashCode);
260 :
261 1265 : if (rtl_hashtable_find(g_pLocaleTable, key, hashCode, &newLocale))
262 16 : return newLocale;
263 :
264 1249 : rtl_uString_newFromStr(&sLanguage, language);
265 1249 : rtl_uString_newFromStr(&sCountry, country);
266 1249 : rtl_uString_newFromStr(&sVariant, variant);
267 :
268 1249 : newLocale = (rtl_Locale*)rtl_allocateMemory( sizeof(rtl_Locale) );
269 :
270 1249 : newLocale->Language = sLanguage;
271 1249 : newLocale->Country = sCountry;
272 1249 : newLocale->Variant = sVariant;
273 1249 : newLocale->HashCode = hashCode;
274 :
275 1249 : rtl_hashtable_add(&g_pLocaleTable, newLocale);
276 :
277 1249 : return newLocale;
278 : }
279 :
280 : /*************************************************************************
281 : * rtl_locale_getDefault
282 : */
283 10 : rtl_Locale * SAL_CALL rtl_locale_getDefault()
284 : {
285 10 : return g_pDefaultLocale;
286 : }
287 :
288 : /*************************************************************************
289 : * rtl_locale_setDefault
290 : */
291 14 : void SAL_CALL rtl_locale_setDefault( const sal_Unicode * language, const sal_Unicode * country, const sal_Unicode * variant )
292 : {
293 14 : g_pDefaultLocale = rtl_locale_register(language, country, variant);
294 14 : }
295 :
296 : /*************************************************************************
297 : * rtl_locale_getLanguage
298 : */
299 1 : rtl_uString * SAL_CALL rtl_locale_getLanguage( rtl_Locale * This )
300 : {
301 1 : rtl_uString_acquire(This->Language);
302 1 : return This->Language;
303 : }
304 :
305 : /*************************************************************************
306 : * rtl_locale_getCountry
307 : */
308 1 : rtl_uString * SAL_CALL rtl_locale_getCountry( rtl_Locale * This )
309 : {
310 1 : rtl_uString_acquire(This->Country);
311 1 : return This->Country;
312 : }
313 :
314 : /*************************************************************************
315 : * rtl_locale_getVariant
316 : */
317 1 : rtl_uString * SAL_CALL rtl_locale_getVariant( rtl_Locale * This )
318 : {
319 1 : rtl_uString_acquire(This->Variant);
320 1 : return This->Variant;
321 : }
322 :
323 : /*************************************************************************
324 : * rtl_locale_hashCode
325 : */
326 1 : sal_Int32 SAL_CALL rtl_locale_hashCode( rtl_Locale * This )
327 : {
328 1 : return This->HashCode;
329 : }
330 :
331 : /*************************************************************************
332 : * rtl_locale_equals
333 : */
334 1 : sal_Int32 SAL_CALL rtl_locale_equals( rtl_Locale * This, rtl_Locale * obj )
335 : {
336 1 : return This == obj;
337 : }
338 :
339 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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