office-gobmx/sal/rtl/locale.cxx
Stephan Bergmann c30f3ea3dd loplugin:includeform: sal
Change-Id: I539ca8b9dee5edc5fc2282a2b9b0ffd78bad8b11
2017-10-23 22:45:58 +02:00

300 lines
7.2 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <rtl/locale.h>
#include <osl/diagnose.h>
#include <rtl/alloc.h>
#include <rtllifecycle.h>
static const sal_Int32 RTL_HASHTABLE_SIZE[] =
{
7, 31, 127, 251, 509, 1021, 2039, 4093
};
struct RTL_HASHENTRY
{
rtl_Locale* Entry;
RTL_HASHENTRY* Next;
};
struct RTL_HASHTABLE
{
sal_Int8 iSize;
sal_Int32 Size;
sal_Int32 Elements;
RTL_HASHENTRY** Table;
};
static RTL_HASHTABLE* g_pLocaleTable = nullptr;
static rtl_Locale* g_pDefaultLocale = nullptr;
extern "C" void rtl_hashentry_destroy(RTL_HASHENTRY* entry)
{
rtl_uString_release(entry->Entry->Language);
rtl_uString_release(entry->Entry->Country);
rtl_uString_release(entry->Entry->Variant);
if (entry->Next)
rtl_hashentry_destroy(entry->Next);
rtl_freeMemory(entry->Entry);
rtl_freeMemory(entry);
}
extern "C" void rtl_hashtable_destroy(RTL_HASHTABLE* table)
{
sal_Int32 size = 0;
if (!table)
return;
size = table->Size;
while (size)
{
if (table->Table[size - 1])
rtl_hashentry_destroy(table->Table[size - 1]);
size--;
}
rtl_freeMemory(table->Table);
rtl_freeMemory(table);
}
extern "C" void rtl_hashtable_init(RTL_HASHTABLE** table, sal_Int8 sizeIndex)
{
sal_Int32 nSize = RTL_HASHTABLE_SIZE[sizeIndex];
if (*table)
rtl_hashtable_destroy(*table);
*table = static_cast< RTL_HASHTABLE* >(rtl_allocateMemory(sizeof(RTL_HASHTABLE)));
(*table)->iSize = sizeIndex;
(*table)->Size = nSize;
(*table)->Elements = 0;
(*table)->Table = static_cast< RTL_HASHENTRY** >(rtl_allocateMemory((*table)->Size * sizeof(RTL_HASHENTRY*)));
while (nSize)
{
(*table)->Table[nSize - 1] = nullptr;
nSize--;
}
}
extern "C" sal_Int32 rtl_hashfunc(RTL_HASHTABLE* table, sal_Int32 key)
{
return ((sal_uInt32) key % table->Size);
}
extern "C" sal_Bool rtl_hashtable_grow(RTL_HASHTABLE** table);
extern "C" rtl_Locale* rtl_hashtable_add(RTL_HASHTABLE** table, rtl_Locale* value)
{
sal_Int32 key = 0;
if (!(*table))
return nullptr;
if ((*table)->Elements > ((*table)->Size / 2))
rtl_hashtable_grow(table);
key = rtl_hashfunc(*table, value->HashCode);
RTL_HASHENTRY **pEntry = &(*table)->Table[key];
while (*pEntry)
{
if (value->HashCode == (*pEntry)->Entry->HashCode)
return (*pEntry)->Entry;
pEntry = &(*pEntry)->Next;
}
RTL_HASHENTRY *newEntry = static_cast< RTL_HASHENTRY* >(rtl_allocateMemory(sizeof(RTL_HASHENTRY)));
newEntry->Entry = value;
newEntry->Next = nullptr;
*pEntry = newEntry;
(*table)->Elements++;
return nullptr;
}
sal_Bool rtl_hashtable_grow(RTL_HASHTABLE** table)
{
RTL_HASHTABLE* pNewTable = nullptr;
sal_Int32 i = 0;
rtl_hashtable_init(&pNewTable, (sal_Int8)((*table)->iSize + 1));
while (i < (*table)->Size)
{
if ((*table)->Table[i])
{
RTL_HASHENTRY *pNext;
RTL_HASHENTRY *pEntry = (*table)->Table[i];
rtl_hashtable_add(&pNewTable, pEntry->Entry);
while (pEntry->Next)
{
rtl_hashtable_add(&pNewTable, pEntry->Next->Entry);
pNext = pEntry->Next;
rtl_freeMemory(pEntry);
pEntry = pNext;
}
rtl_freeMemory(pEntry);
}
i++;
}
rtl_freeMemory((*table)->Table);
rtl_freeMemory(*table);
(*table) = pNewTable;
return true;
}
extern "C" sal_Bool rtl_hashtable_find(RTL_HASHTABLE * table, sal_Int32 key, sal_Int32 hashCode, rtl_Locale** pValue)
{
if (!table)
return false;
if (table->Table[key])
{
RTL_HASHENTRY *pEntry = table->Table[key];
while (pEntry && hashCode != pEntry->Entry->HashCode)
{
pEntry = pEntry->Next;
}
if (pEntry)
*pValue = pEntry->Entry;
else
return false;
}
else
{
return false;
}
return true;
}
void rtl_locale_init()
{
OSL_ASSERT(!g_pLocaleTable);
rtl_hashtable_init(&g_pLocaleTable, 1);
}
void rtl_locale_fini()
{
if (g_pLocaleTable)
{
rtl_hashtable_destroy (g_pLocaleTable);
g_pLocaleTable = nullptr;
}
}
rtl_Locale * SAL_CALL rtl_locale_register(const sal_Unicode * language, const sal_Unicode * country, const sal_Unicode * variant)
{
sal_Unicode c = 0;
rtl_uString* sLanguage = nullptr;
rtl_uString* sCountry = nullptr;
rtl_uString* sVariant = nullptr;
rtl_Locale *newLocale = nullptr;
sal_Int32 hashCode = -1;
sal_Int32 key = 0;
if (!country)
country = &c;
if (!variant)
variant = &c;
ensureLocaleSingleton();
if (!g_pLocaleTable)
return nullptr;
hashCode = rtl_ustr_hashCode(language) ^ rtl_ustr_hashCode(country) ^ rtl_ustr_hashCode(variant);
key = rtl_hashfunc(g_pLocaleTable, hashCode);
if (rtl_hashtable_find(g_pLocaleTable, key, hashCode, &newLocale))
return newLocale;
rtl_uString_newFromStr(&sLanguage, language);
rtl_uString_newFromStr(&sCountry, country);
rtl_uString_newFromStr(&sVariant, variant);
newLocale = static_cast<rtl_Locale*>(rtl_allocateMemory( sizeof(rtl_Locale) ));
newLocale->Language = sLanguage;
newLocale->Country = sCountry;
newLocale->Variant = sVariant;
newLocale->HashCode = hashCode;
rtl_hashtable_add(&g_pLocaleTable, newLocale);
return newLocale;
}
rtl_Locale * SAL_CALL rtl_locale_getDefault()
{
return g_pDefaultLocale;
}
void SAL_CALL rtl_locale_setDefault(const sal_Unicode * language, const sal_Unicode * country, const sal_Unicode * variant)
{
g_pDefaultLocale = rtl_locale_register(language, country, variant);
}
rtl_uString * SAL_CALL rtl_locale_getLanguage(rtl_Locale * This)
{
rtl_uString_acquire(This->Language);
return This->Language;
}
rtl_uString * SAL_CALL rtl_locale_getCountry(rtl_Locale * This)
{
rtl_uString_acquire(This->Country);
return This->Country;
}
rtl_uString * SAL_CALL rtl_locale_getVariant(rtl_Locale * This)
{
rtl_uString_acquire(This->Variant);
return This->Variant;
}
sal_Int32 SAL_CALL rtl_locale_hashCode(rtl_Locale * This)
{
return This->HashCode;
}
sal_Int32 SAL_CALL rtl_locale_equals(rtl_Locale * This, rtl_Locale * obj)
{
return This == obj;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */