105 lines
3.1 KiB
C++
105 lines
3.1 KiB
C++
// Copyright (C) 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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*******************************************************************************
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* Copyright (C) 2012-2014, International Business Machines
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* Corporation and others. All Rights Reserved.
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*******************************************************************************
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* collationroot.cpp
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*
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* created on: 2012dec17
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* created by: Markus W. Scherer
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_COLLATION
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#include "unicode/coll.h"
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#include "unicode/udata.h"
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#include "collation.h"
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#include "collationdata.h"
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#include "collationdatareader.h"
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#include "collationroot.h"
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#include "collationsettings.h"
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#include "collationtailoring.h"
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#include "normalizer2impl.h"
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#include "ucln_in.h"
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#include "udatamem.h"
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#include "umutex.h"
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U_NAMESPACE_BEGIN
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namespace {
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static const CollationCacheEntry *rootSingleton = NULL;
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static UInitOnce initOnce = U_INITONCE_INITIALIZER;
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} // namespace
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U_CDECL_BEGIN
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static UBool U_CALLCONV uprv_collation_root_cleanup() {
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SharedObject::clearPtr(rootSingleton);
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initOnce.reset();
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return TRUE;
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}
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U_CDECL_END
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void U_CALLCONV
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CollationRoot::load(UErrorCode &errorCode) {
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if(U_FAILURE(errorCode)) { return; }
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LocalPointer<CollationTailoring> t(new CollationTailoring(NULL));
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if(t.isNull() || t->isBogus()) {
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errorCode = U_MEMORY_ALLOCATION_ERROR;
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return;
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}
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t->memory = udata_openChoice(U_ICUDATA_NAME U_TREE_SEPARATOR_STRING "coll",
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"icu", "ucadata",
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CollationDataReader::isAcceptable, t->version, &errorCode);
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if(U_FAILURE(errorCode)) { return; }
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const uint8_t *inBytes = static_cast<const uint8_t *>(udata_getMemory(t->memory));
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CollationDataReader::read(NULL, inBytes, udata_getLength(t->memory), *t, errorCode);
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if(U_FAILURE(errorCode)) { return; }
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ucln_i18n_registerCleanup(UCLN_I18N_COLLATION_ROOT, uprv_collation_root_cleanup);
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CollationCacheEntry *entry = new CollationCacheEntry(Locale::getRoot(), t.getAlias());
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if(entry != NULL) {
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t.orphan(); // The rootSingleton took ownership of the tailoring.
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entry->addRef();
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rootSingleton = entry;
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}
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}
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const CollationCacheEntry *
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CollationRoot::getRootCacheEntry(UErrorCode &errorCode) {
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umtx_initOnce(initOnce, CollationRoot::load, errorCode);
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if(U_FAILURE(errorCode)) { return NULL; }
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return rootSingleton;
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}
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const CollationTailoring *
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CollationRoot::getRoot(UErrorCode &errorCode) {
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umtx_initOnce(initOnce, CollationRoot::load, errorCode);
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if(U_FAILURE(errorCode)) { return NULL; }
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return rootSingleton->tailoring;
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}
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const CollationData *
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CollationRoot::getData(UErrorCode &errorCode) {
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const CollationTailoring *root = getRoot(errorCode);
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if(U_FAILURE(errorCode)) { return NULL; }
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return root->data;
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}
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const CollationSettings *
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CollationRoot::getSettings(UErrorCode &errorCode) {
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const CollationTailoring *root = getRoot(errorCode);
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if(U_FAILURE(errorCode)) { return NULL; }
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return root->settings;
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}
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U_NAMESPACE_END
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#endif // !UCONFIG_NO_COLLATION
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