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 29U_NAMESPACE_BEGIN 30 31namespace { 32 33static const CollationTailoring *rootSingleton = NULL; 34static UInitOnce initOnce = U_INITONCE_INITIALIZER; 35 36} // namespace 37 38U_CDECL_BEGIN 39 40static UBool U_CALLCONV uprv_collation_root_cleanup() { 41 SharedObject::clearPtr(rootSingleton); 42 initOnce.reset(); 43 return TRUE; 44} 45 46U_CDECL_END 47 48void 49CollationRoot::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 68const CollationTailoring * 69CollationRoot::getRoot(UErrorCode &errorCode) { 70 umtx_initOnce(initOnce, CollationRoot::load, errorCode); 71 if(U_FAILURE(errorCode)) { return NULL; } 72 return rootSingleton; 73} 74 75const CollationData * 76CollationRoot::getData(UErrorCode &errorCode) { 77 const CollationTailoring *root = getRoot(errorCode); 78 if(U_FAILURE(errorCode)) { return NULL; } 79 return root->data; 80} 81 82const CollationSettings * 83CollationRoot::getSettings(UErrorCode &errorCode) { 84 const CollationTailoring *root = getRoot(errorCode); 85 if(U_FAILURE(errorCode)) { return NULL; } 86 return root->settings; 87} 88 89U_NAMESPACE_END 90 91#endif // !UCONFIG_NO_COLLATION 92