projects / apple / icu.git / blame
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|---|---|---|
| 57a6839d A |
1 | /* |
| 2 | ******************************************************************************* | |
| 3 | * Copyright (C) 2012-2014, International Business Machines | |
| 4 | * Corporation and others. All Rights Reserved. | |
| 5 | ******************************************************************************* | |
| 6 | * collationroot.cpp | |
| 7 | * | |
| 8 | * created on: 2012dec17 | |
| 9 | * created by: Markus W. Scherer | |
| 10 | */ | |
| 11 | ||
| 12 | #include "unicode/utypes.h" | |
| 13 | ||
| 14 | #if !UCONFIG_NO_COLLATION | |
| 15 | ||
| 16 | #include "unicode/coll.h" | |
| 17 | #include "unicode/udata.h" | |
| 18 | #include "collation.h" | |
| 19 | #include "collationdata.h" | |
| 20 | #include "collationdatareader.h" | |
| 21 | #include "collationroot.h" | |
| 22 | #include "collationsettings.h" | |
| 23 | #include "collationtailoring.h" | |
| 24 | #include "normalizer2impl.h" | |
| 25 | #include "ucln_in.h" | |
| 26 | #include "udatamem.h" | |
| 27 | #include "umutex.h" | |
| 28 | ||
| 29 | U_NAMESPACE_BEGIN | |
| 30 | ||
| 31 | namespace { | |
| 32 | ||
| b331163b | 33 | static const CollationCacheEntry *rootSingleton = NULL; |
| 57a6839d A |
34 | static UInitOnce initOnce = U_INITONCE_INITIALIZER; |
| 35 | ||
| 36 | } // namespace | |
| 37 | ||
| 38 | U_CDECL_BEGIN | |
| 39 | ||
| 40 | static UBool U_CALLCONV uprv_collation_root_cleanup() { | |
| 41 | SharedObject::clearPtr(rootSingleton); | |
| 42 | initOnce.reset(); | |
| 43 | return TRUE; | |
| 44 | } | |
| 45 | ||
| 46 | U_CDECL_END | |
| 47 | ||
| 48 | void | |
| 49 | CollationRoot::load(UErrorCode &errorCode) { | |
| 50 | if(U_FAILURE(errorCode)) { return; } | |
| 51 | LocalPointer<CollationTailoring> t(new CollationTailoring(NULL)); | |
| 52 | if(t.isNull() || t->isBogus()) { | |
| 53 | errorCode = U_MEMORY_ALLOCATION_ERROR; | |
| 54 | return; | |
| 55 | } | |
| 56 | t->memory = udata_openChoice(U_ICUDATA_NAME U_TREE_SEPARATOR_STRING "coll", | |
| 57 | "icu", "ucadata", | |
| 58 | CollationDataReader::isAcceptable, t->version, &errorCode); | |
| 59 | if(U_FAILURE(errorCode)) { return; } | |
| 60 | const uint8_t *inBytes = static_cast<const uint8_t *>(udata_getMemory(t->memory)); | |
| 61 | CollationDataReader::read(NULL, inBytes, udata_getLength(t->memory), *t, errorCode); | |
| 62 | if(U_FAILURE(errorCode)) { return; } | |
| 63 | ucln_i18n_registerCleanup(UCLN_I18N_COLLATION_ROOT, uprv_collation_root_cleanup); | |
| b331163b A |
64 | CollationCacheEntry *entry = new CollationCacheEntry(Locale::getRoot(), t.getAlias()); |
| 65 | if(entry != NULL) { | |
| 66 | t.orphan(); // The rootSingleton took ownership of the tailoring. | |
| 67 | entry->addRef(); | |
| 68 | rootSingleton = entry; | |
| 69 | } | |
| 70 | } | |
| 71 | ||
| 72 | const CollationCacheEntry * | |
| 73 | CollationRoot::getRootCacheEntry(UErrorCode &errorCode) { | |
| 74 | umtx_initOnce(initOnce, CollationRoot::load, errorCode); | |
| 75 | if(U_FAILURE(errorCode)) { return NULL; } | |
| 76 | return rootSingleton; | |
| 57a6839d A |
77 | } |
| 78 | ||
| 79 | const CollationTailoring * | |
| 80 | CollationRoot::getRoot(UErrorCode &errorCode) { | |
| 81 | umtx_initOnce(initOnce, CollationRoot::load, errorCode); | |
| 82 | if(U_FAILURE(errorCode)) { return NULL; } | |
| b331163b | 83 | return rootSingleton->tailoring; |
| 57a6839d A |
84 | } |
| 85 | ||
| 86 | const CollationData * | |
| 87 | CollationRoot::getData(UErrorCode &errorCode) { | |
| 88 | const CollationTailoring *root = getRoot(errorCode); | |
| 89 | if(U_FAILURE(errorCode)) { return NULL; } | |
| 90 | return root->data; | |
| 91 | } | |
| 92 | ||
| 93 | const CollationSettings * | |
| 94 | CollationRoot::getSettings(UErrorCode &errorCode) { | |
| 95 | const CollationTailoring *root = getRoot(errorCode); | |
| 96 | if(U_FAILURE(errorCode)) { return NULL; } | |
| 97 | return root->settings; | |
| 98 | } | |
| 99 | ||
| 100 | U_NAMESPACE_END | |
| 101 | ||
| 102 | #endif // !UCONFIG_NO_COLLATION |