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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include "rtl/locale.h"
#include "osl/diagnose.h"
#include "rtl/alloc.h"
#include "internal/once.h"
static sal_Int32 RTL_HASHTABLE_SIZE[] =
{
7, 31, 127, 251, 509, 1021, 2039, 4093
};
typedef struct rtl_hashentry RTL_HASHENTRY;
struct rtl_hashentry
{
rtl_Locale* Entry;
RTL_HASHENTRY* Next;
};
typedef struct rtl_hashtable
{
sal_Int8 iSize;
sal_Int32 Size;
sal_Int32 Elements;
RTL_HASHENTRY** Table;
} RTL_HASHTABLE;
static RTL_HASHTABLE* g_pLocaleTable = NULL;
static rtl_Locale* g_pDefaultLocale = NULL;
static int rtl_locale_init (void);
/*************************************************************************
*/
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);
}
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);
}
void rtl_hashtable_init(RTL_HASHTABLE** table, sal_Int8 sizeIndex)
{
sal_Int32 nSize = RTL_HASHTABLE_SIZE[sizeIndex];
if (*table)
rtl_hashtable_destroy(*table);
*table = (RTL_HASHTABLE*)rtl_allocateMemory( sizeof(RTL_HASHTABLE) );
(*table)->iSize = sizeIndex;
(*table)->Size = nSize;
(*table)->Elements = 0;
(*table)->Table = (RTL_HASHENTRY**)rtl_allocateMemory( (*table)->Size * sizeof(RTL_HASHENTRY*) );
while (nSize)
{
(*table)->Table[nSize - 1] = NULL;
nSize--;
}
}
sal_Int32 rtl_hashfunc(RTL_HASHTABLE* table, sal_Int32 key)
{
return ( (sal_uInt32) key % table->Size);
}
sal_Bool rtl_hashtable_grow(RTL_HASHTABLE** table);
rtl_Locale* rtl_hashtable_add(RTL_HASHTABLE** table, rtl_Locale* value)
{
sal_Int32 key = 0;
if (!(*table))
return NULL;
if ((*table)->Elements > ((*table)->Size / 2))
rtl_hashtable_grow(table);
key = rtl_hashfunc(*table, value->HashCode);
if (!(*table)->Table[key])
{
RTL_HASHENTRY *newEntry = (RTL_HASHENTRY*)rtl_allocateMemory( sizeof(RTL_HASHENTRY) );
newEntry->Entry = value;
newEntry->Next = NULL;
(*table)->Table[key] = newEntry;
(*table)->Elements++;
return NULL;
} else
{
RTL_HASHENTRY *pEntry = (*table)->Table[key];
RTL_HASHENTRY *newEntry = NULL;
while (pEntry)
{
if (value->HashCode == pEntry->Entry->HashCode)
return pEntry->Entry;
if (!pEntry->Next)
break;
pEntry = pEntry->Next;
}
newEntry = (RTL_HASHENTRY*)rtl_allocateMemory( sizeof(RTL_HASHENTRY) );
newEntry->Entry = value;
newEntry->Next = NULL;
pEntry->Next = newEntry;
(*table)->Elements++;
return NULL;
}
}
sal_Bool rtl_hashtable_grow(RTL_HASHTABLE** table)
{
RTL_HASHTABLE* pNewTable = NULL;
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 sal_True;
}
sal_Bool rtl_hashtable_find(RTL_HASHTABLE * table, sal_Int32 key, sal_Int32 hashCode, rtl_Locale** pValue)
{
if (!table)
return sal_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 sal_False;
} else
return sal_False;
return sal_True;
}
/*************************************************************************
* rtl_locale_init
*/
static void rtl_locale_once_init (void)
{
OSL_ASSERT(g_pLocaleTable == 0);
rtl_hashtable_init(&g_pLocaleTable, 1);
}
static int rtl_locale_init (void)
{
static sal_once_type g_once = SAL_ONCE_INIT;
SAL_ONCE(&g_once, rtl_locale_once_init);
return (g_pLocaleTable != 0);
}
/*************************************************************************
* rtl_locale_fini
*/
#if defined(__GNUC__)
static void rtl_locale_fini (void) __attribute__((destructor));
#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
#pragma fini(rtl_locale_fini)
static void rtl_locale_fini (void);
#endif /* __GNUC__ || __SUNPRO_C */
void rtl_locale_fini (void)
{
if (g_pLocaleTable != 0)
{
rtl_hashtable_destroy (g_pLocaleTable);
g_pLocaleTable = 0;
}
}
/*************************************************************************
* rtl_locale_register
*/
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 = NULL;
rtl_uString* sCountry = NULL;
rtl_uString* sVariant = NULL;
rtl_Locale *newLocale = NULL;
sal_Int32 hashCode = -1;
sal_Int32 key = 0;
if ( !country )
country = &c;
if ( !variant )
variant = &c;
if (!rtl_locale_init())
return NULL;
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 = (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_getDefault
*/
rtl_Locale * SAL_CALL rtl_locale_getDefault()
{
return g_pDefaultLocale;
}
/*************************************************************************
* rtl_locale_setDefault
*/
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_locale_getLanguage
*/
rtl_uString * SAL_CALL rtl_locale_getLanguage( rtl_Locale * This )
{
rtl_uString_acquire(This->Language);
return This->Language;
}
/*************************************************************************
* rtl_locale_getCountry
*/
rtl_uString * SAL_CALL rtl_locale_getCountry( rtl_Locale * This )
{
rtl_uString_acquire(This->Country);
return This->Country;
}
/*************************************************************************
* rtl_locale_getVariant
*/
rtl_uString * SAL_CALL rtl_locale_getVariant( rtl_Locale * This )
{
rtl_uString_acquire(This->Variant);
return This->Variant;
}
/*************************************************************************
* rtl_locale_hashCode
*/
sal_Int32 SAL_CALL rtl_locale_hashCode( rtl_Locale * This )
{
return This->HashCode;
}
/*************************************************************************
* rtl_locale_equals
*/
sal_Int32 SAL_CALL rtl_locale_equals( rtl_Locale * This, rtl_Locale * obj )
{
return This == obj;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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