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 33 static const CollationTailoring *rootSingleton = NULL; 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); 64 t->addRef(); // The rootSingleton takes ownership. 65 rootSingleton = t.orphan(); 66 } 67 68 const CollationTailoring * 69 CollationRoot::getRoot(UErrorCode &errorCode) { 70 umtx_initOnce(initOnce, CollationRoot::load, errorCode); 71 if(U_FAILURE(errorCode)) { return NULL; } 72 return rootSingleton; 73 } 74 75 const CollationData * 76 CollationRoot::getData(UErrorCode &errorCode) { 77 const CollationTailoring *root = getRoot(errorCode); 78 if(U_FAILURE(errorCode)) { return NULL; } 79 return root->data; 80 } 81 82 const CollationSettings * 83 CollationRoot::getSettings(UErrorCode &errorCode) { 84 const CollationTailoring *root = getRoot(errorCode); 85 if(U_FAILURE(errorCode)) { return NULL; } 86 return root->settings; 87 } 88 89 U_NAMESPACE_END 90 91 #endif // !UCONFIG_NO_COLLATION 92