sal/rtl/locale.cxx

   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 <stdlib.h>
  21 #include <rtl/locale.h>
  22
  23 #include <osl/diagnose.h>
  24
  25 #include <rtllifecycle.h>
  26 #include <memory>
  27 #include <unordered_map>
  28
  29 namespace {
  30
  31 struct locale_deleter
  32 {
  33     void operator() (rtl_Locale* p) noexcept
  34     {
  35         rtl_uString_release(p->Language);
  36         rtl_uString_release(p->Country);
  37         rtl_uString_release(p->Variant);
  38         delete p;
  39     }
  40 };
  41
  42 }
  43
  44 using locale_unique_ptr = std::unique_ptr<rtl_Locale, locale_deleter>;
  45
  46 static std::unordered_map<sal_Int32, locale_unique_ptr>* g_pLocaleTable = nullptr;
  47
  48 static rtl_Locale* g_pDefaultLocale = nullptr;
  49
  50 void rtl_locale_init()
  51 {
  52     if (!g_pLocaleTable)
  53         g_pLocaleTable = new std::unordered_map<sal_Int32, locale_unique_ptr>;
  54 }
  55
  56 void rtl_locale_fini()
  57 {
  58     if (g_pLocaleTable)
  59     {
  60         delete g_pLocaleTable;
  61         g_pLocaleTable = nullptr;
  62     }
  63     g_pDefaultLocale = nullptr;
  64 }
  65
  66 rtl_Locale * SAL_CALL rtl_locale_register(const sal_Unicode * language, const sal_Unicode * country, const sal_Unicode * variant)
  67 {
  68     sal_Unicode c = 0;
  69     rtl_uString* sLanguage = nullptr;
  70     rtl_uString* sCountry = nullptr;
  71     rtl_uString* sVariant = nullptr;
  72     sal_Int32 hashCode = -1;
  73
  74     if (!country)
  75         country = &c;
  76
  77     if (!variant)
  78         variant = &c;
  79
  80     ensureLocaleSingleton();
  81
  82     hashCode = rtl_ustr_hashCode(language) ^ rtl_ustr_hashCode(country) ^ rtl_ustr_hashCode(variant);
  83
  84     auto it = g_pLocaleTable->find(hashCode);
  85     if (it != g_pLocaleTable->end())
  86         return it->second.get();
  87
  88     rtl_uString_newFromStr(&sLanguage, language);
  89     rtl_uString_newFromStr(&sCountry, country);
  90     rtl_uString_newFromStr(&sVariant, variant);
  91
  92     locale_unique_ptr newLocale(new rtl_Locale);
  93
  94     newLocale->Language = sLanguage;
  95     newLocale->Country = sCountry;
  96     newLocale->Variant = sVariant;
  97     newLocale->HashCode = hashCode;
  98
  99     auto ret = newLocale.get();
 100     g_pLocaleTable->insert(it, std::pair<sal_Int32, locale_unique_ptr>( hashCode, std::move(newLocale) ) );
 101     return ret;
 102 }
 103
 104 rtl_Locale * SAL_CALL rtl_locale_getDefault()
 105 {
 106     return g_pDefaultLocale;
 107 }
 108
 109 void SAL_CALL rtl_locale_setDefault(const sal_Unicode * language, const sal_Unicode * country, const sal_Unicode * variant)
 110 {
 111     g_pDefaultLocale = rtl_locale_register(language, country, variant);
 112 }
 113
 114 rtl_uString * SAL_CALL rtl_locale_getLanguage(rtl_Locale * This)
 115 {
 116     rtl_uString_acquire(This->Language);
 117     return This->Language;
 118 }
 119
 120 rtl_uString * SAL_CALL rtl_locale_getCountry(rtl_Locale * This)
 121 {
 122     rtl_uString_acquire(This->Country);
 123     return This->Country;
 124 }
 125
 126 rtl_uString * SAL_CALL rtl_locale_getVariant(rtl_Locale * This)
 127 {
 128     rtl_uString_acquire(This->Variant);
 129     return This->Variant;
 130 }
 131
 132 sal_Int32 SAL_CALL rtl_locale_hashCode(rtl_Locale * This)
 133 {
 134     return This->HashCode;
 135 }
 136
 137 sal_Int32 SAL_CALL rtl_locale_equals(rtl_Locale * This, rtl_Locale * obj)
 138 {
 139     return This == obj;
 140 }
 141
 142 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */