1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
4 *******************************************************************************
5 * Copyright (C) 2012-2014, International Business Machines
6 * Corporation and others. All Rights Reserved.
7 *******************************************************************************
10 * created on: 2012dec17
11 * created by: Markus W. Scherer
14 #include "unicode/utypes.h"
16 #if !UCONFIG_NO_COLLATION
18 #include "unicode/coll.h"
19 #include "unicode/udata.h"
20 #include "collation.h"
21 #include "collationdata.h"
22 #include "collationdatareader.h"
23 #include "collationroot.h"
24 #include "collationsettings.h"
25 #include "collationtailoring.h"
26 #include "normalizer2impl.h"
35 static const CollationCacheEntry *rootSingleton = NULL;
36 static UInitOnce initOnce = U_INITONCE_INITIALIZER;
42 static UBool U_CALLCONV uprv_collation_root_cleanup() {
43 SharedObject::clearPtr(rootSingleton);
51 CollationRoot::load(UErrorCode &errorCode) {
52 if(U_FAILURE(errorCode)) { return; }
53 LocalPointer<CollationTailoring> t(new CollationTailoring(NULL));
54 if(t.isNull() || t->isBogus()) {
55 errorCode = U_MEMORY_ALLOCATION_ERROR;
58 t->memory = udata_openChoice(U_ICUDATA_NAME U_TREE_SEPARATOR_STRING "coll",
60 CollationDataReader::isAcceptable, t->version, &errorCode);
61 if(U_FAILURE(errorCode)) { return; }
62 const uint8_t *inBytes = static_cast<const uint8_t *>(udata_getMemory(t->memory));
63 CollationDataReader::read(NULL, inBytes, udata_getLength(t->memory), *t, errorCode);
64 if(U_FAILURE(errorCode)) { return; }
65 ucln_i18n_registerCleanup(UCLN_I18N_COLLATION_ROOT, uprv_collation_root_cleanup);
66 CollationCacheEntry *entry = new CollationCacheEntry(Locale::getRoot(), t.getAlias());
68 t.orphan(); // The rootSingleton took ownership of the tailoring.
70 rootSingleton = entry;
74 const CollationCacheEntry *
75 CollationRoot::getRootCacheEntry(UErrorCode &errorCode) {
76 umtx_initOnce(initOnce, CollationRoot::load, errorCode);
77 if(U_FAILURE(errorCode)) { return NULL; }
81 const CollationTailoring *
82 CollationRoot::getRoot(UErrorCode &errorCode) {
83 umtx_initOnce(initOnce, CollationRoot::load, errorCode);
84 if(U_FAILURE(errorCode)) { return NULL; }
85 return rootSingleton->tailoring;
89 CollationRoot::getData(UErrorCode &errorCode) {
90 const CollationTailoring *root = getRoot(errorCode);
91 if(U_FAILURE(errorCode)) { return NULL; }
95 const CollationSettings *
96 CollationRoot::getSettings(UErrorCode &errorCode) {
97 const CollationTailoring *root = getRoot(errorCode);
98 if(U_FAILURE(errorCode)) { return NULL; }
99 return root->settings;
104 #endif // !UCONFIG_NO_COLLATION