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