| File: | root/firefox-clang/intl/icu/source/common/udata.cpp |
| Warning: | line 849, column 11 Value stored to 'didUpdate' is never read |
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| 1 | // © 2016 and later: Unicode, Inc. and others. |
| 2 | // License & terms of use: http://www.unicode.org/copyright.html |
| 3 | /* |
| 4 | ****************************************************************************** |
| 5 | * |
| 6 | * Copyright (C) 1999-2016, International Business Machines |
| 7 | * Corporation and others. All Rights Reserved. |
| 8 | * |
| 9 | ****************************************************************************** |
| 10 | * file name: udata.cpp |
| 11 | * encoding: UTF-8 |
| 12 | * tab size: 8 (not used) |
| 13 | * indentation:4 |
| 14 | * |
| 15 | * created on: 1999oct25 |
| 16 | * created by: Markus W. Scherer |
| 17 | */ |
| 18 | |
| 19 | #include "unicode/utypes.h" /* U_PLATFORM etc. */ |
| 20 | |
| 21 | #ifdef __GNUC__4 |
| 22 | /* if gcc |
| 23 | #define ATTRIBUTE_WEAK __attribute__ ((weak)) |
| 24 | might have to #include some other header |
| 25 | */ |
| 26 | #endif |
| 27 | |
| 28 | #include "unicode/putil.h" |
| 29 | #include "unicode/udata.h" |
| 30 | #include "unicode/uversion.h" |
| 31 | #include "charstr.h" |
| 32 | #include "cmemory.h" |
| 33 | #include "cstring.h" |
| 34 | #include "mutex.h" |
| 35 | #include "putilimp.h" |
| 36 | #include "restrace.h" |
| 37 | #include "uassert.h" |
| 38 | #include "ucln_cmn.h" |
| 39 | #include "ucmndata.h" |
| 40 | #include "udatamem.h" |
| 41 | #include "uhash.h" |
| 42 | #include "umapfile.h" |
| 43 | #include "umutex.h" |
| 44 | |
| 45 | /*********************************************************************** |
| 46 | * |
| 47 | * Notes on the organization of the ICU data implementation |
| 48 | * |
| 49 | * All of the public API is defined in udata.h |
| 50 | * |
| 51 | * The implementation is split into several files... |
| 52 | * |
| 53 | * - udata.c (this file) contains higher level code that knows about |
| 54 | * the search paths for locating data, caching opened data, etc. |
| 55 | * |
| 56 | * - umapfile.c contains the low level platform-specific code for actually loading |
| 57 | * (memory mapping, file reading, whatever) data into memory. |
| 58 | * |
| 59 | * - ucmndata.c deals with the tables of contents of ICU data items within |
| 60 | * an ICU common format data file. The implementation includes |
| 61 | * an abstract interface and support for multiple TOC formats. |
| 62 | * All knowledge of any specific TOC format is encapsulated here. |
| 63 | * |
| 64 | * - udatamem.c has code for managing UDataMemory structs. These are little |
| 65 | * descriptor objects for blocks of memory holding ICU data of |
| 66 | * various types. |
| 67 | */ |
| 68 | |
| 69 | /* configuration ---------------------------------------------------------- */ |
| 70 | |
| 71 | /* If you are excruciatingly bored turn this on .. */ |
| 72 | /* #define UDATA_DEBUG 1 */ |
| 73 | |
| 74 | #if defined(UDATA_DEBUG) |
| 75 | # include <stdio.h> |
| 76 | #endif |
| 77 | |
| 78 | U_NAMESPACE_USEusing namespace icu_77; |
| 79 | |
| 80 | /* |
| 81 | * Forward declarations |
| 82 | */ |
| 83 | static UDataMemory *udata_findCachedData(const char *path, UErrorCode &err); |
| 84 | |
| 85 | /*********************************************************************** |
| 86 | * |
| 87 | * static (Global) data |
| 88 | * |
| 89 | ************************************************************************/ |
| 90 | |
| 91 | /* |
| 92 | * Pointers to the common ICU data. |
| 93 | * |
| 94 | * We store multiple pointers to ICU data packages and iterate through them |
| 95 | * when looking for a data item. |
| 96 | * |
| 97 | * It is possible to combine this with dependency inversion: |
| 98 | * One or more data package libraries may export |
| 99 | * functions that each return a pointer to their piece of the ICU data, |
| 100 | * and this file would import them as weak functions, without a |
| 101 | * strong linker dependency from the common library on the data library. |
| 102 | * |
| 103 | * Then we can have applications depend on only that part of ICU's data |
| 104 | * that they really need, reducing the size of binaries that take advantage |
| 105 | * of this. |
| 106 | */ |
| 107 | static UDataMemory *gCommonICUDataArray[10] = { nullptr }; // Access protected by icu global mutex. |
| 108 | |
| 109 | static u_atomic_int32_t gHaveTriedToLoadCommonData {0}; // See extendICUData(). |
| 110 | |
| 111 | static UHashtable *gCommonDataCache = nullptr; /* Global hash table of opened ICU data files. */ |
| 112 | static icu::UInitOnce gCommonDataCacheInitOnce {}; |
| 113 | |
| 114 | #if !defined(ICU_DATA_DIR_WINDOWS) |
| 115 | static UDataFileAccess gDataFileAccess = UDATA_DEFAULT_ACCESS; // Access not synchronized. |
| 116 | // Modifying is documented as thread-unsafe. |
| 117 | #else |
| 118 | // If we are using the Windows data directory, then look in one spot only. |
| 119 | static UDataFileAccess gDataFileAccess = UDATA_NO_FILES; |
| 120 | #endif |
| 121 | |
| 122 | static UBool U_CALLCONV |
| 123 | udata_cleanup() |
| 124 | { |
| 125 | int32_t i; |
| 126 | |
| 127 | if (gCommonDataCache) { /* Delete the cache of user data mappings. */ |
| 128 | uhash_closeuhash_close_77(gCommonDataCache); /* Table owns the contents, and will delete them. */ |
| 129 | gCommonDataCache = nullptr; /* Cleanup is not thread safe. */ |
| 130 | } |
| 131 | gCommonDataCacheInitOnce.reset(); |
| 132 | |
| 133 | for (i = 0; i < UPRV_LENGTHOF(gCommonICUDataArray)(int32_t)(sizeof(gCommonICUDataArray)/sizeof((gCommonICUDataArray )[0])) && gCommonICUDataArray[i] != nullptr; ++i) { |
| 134 | udata_closeudata_close_77(gCommonICUDataArray[i]); |
| 135 | gCommonICUDataArray[i] = nullptr; |
| 136 | } |
| 137 | gHaveTriedToLoadCommonData = 0; |
| 138 | |
| 139 | return true; /* Everything was cleaned up */ |
| 140 | } |
| 141 | |
| 142 | static UBool U_CALLCONV |
| 143 | findCommonICUDataByName(const char *inBasename, UErrorCode &err) |
| 144 | { |
| 145 | UBool found = false; |
| 146 | int32_t i; |
| 147 | |
| 148 | UDataMemory *pData = udata_findCachedData(inBasename, err); |
| 149 | if (U_FAILURE(err) || pData == nullptr) |
| 150 | return false; |
| 151 | |
| 152 | { |
| 153 | Mutex lock; |
| 154 | for (i = 0; i < UPRV_LENGTHOF(gCommonICUDataArray)(int32_t)(sizeof(gCommonICUDataArray)/sizeof((gCommonICUDataArray )[0])); ++i) { |
| 155 | if ((gCommonICUDataArray[i] != nullptr) && (gCommonICUDataArray[i]->pHeader == pData->pHeader)) { |
| 156 | /* The data pointer is already in the array. */ |
| 157 | found = true; |
| 158 | break; |
| 159 | } |
| 160 | } |
| 161 | } |
| 162 | return found; |
| 163 | } |
| 164 | |
| 165 | |
| 166 | /* |
| 167 | * setCommonICUData. Set a UDataMemory to be the global ICU Data |
| 168 | */ |
| 169 | static UBool |
| 170 | setCommonICUData(UDataMemory *pData, /* The new common data. Belongs to caller, we copy it. */ |
| 171 | UBool warn, /* If true, set USING_DEFAULT warning if ICUData was */ |
| 172 | /* changed by another thread before we got to it. */ |
| 173 | UErrorCode *pErr) |
| 174 | { |
| 175 | UDataMemory *newCommonData = UDataMemory_createNewInstanceUDataMemory_createNewInstance_77(pErr); |
| 176 | int32_t i; |
| 177 | UBool didUpdate = false; |
| 178 | if (U_FAILURE(*pErr)) { |
| 179 | return false; |
| 180 | } |
| 181 | |
| 182 | /* For the assignment, other threads must cleanly see either the old */ |
| 183 | /* or the new, not some partially initialized new. The old can not be */ |
| 184 | /* deleted - someone may still have a pointer to it lying around in */ |
| 185 | /* their locals. */ |
| 186 | UDatamemory_assignUDatamemory_assign_77(newCommonData, pData); |
| 187 | umtx_lockumtx_lock_77(nullptr); |
| 188 | for (i = 0; i < UPRV_LENGTHOF(gCommonICUDataArray)(int32_t)(sizeof(gCommonICUDataArray)/sizeof((gCommonICUDataArray )[0])); ++i) { |
| 189 | if (gCommonICUDataArray[i] == nullptr) { |
| 190 | gCommonICUDataArray[i] = newCommonData; |
| 191 | didUpdate = true; |
| 192 | break; |
| 193 | } else if (gCommonICUDataArray[i]->pHeader == pData->pHeader) { |
| 194 | /* The same data pointer is already in the array. */ |
| 195 | break; |
| 196 | } |
| 197 | } |
| 198 | umtx_unlockumtx_unlock_77(nullptr); |
| 199 | |
| 200 | if (i == UPRV_LENGTHOF(gCommonICUDataArray)(int32_t)(sizeof(gCommonICUDataArray)/sizeof((gCommonICUDataArray )[0])) && warn) { |
| 201 | *pErr = U_USING_DEFAULT_WARNING; |
| 202 | } |
| 203 | if (didUpdate) { |
| 204 | ucln_common_registerCleanupucln_common_registerCleanup_77(UCLN_COMMON_UDATA, udata_cleanup); |
| 205 | } else { |
| 206 | uprv_freeuprv_free_77(newCommonData); |
| 207 | } |
| 208 | return didUpdate; |
| 209 | } |
| 210 | |
| 211 | #if !defined(ICU_DATA_DIR_WINDOWS) |
| 212 | |
| 213 | static UBool |
| 214 | setCommonICUDataPointer(const void *pData, UBool /*warn*/, UErrorCode *pErrorCode) { |
| 215 | UDataMemory tData; |
| 216 | UDataMemory_initUDataMemory_init_77(&tData); |
| 217 | UDataMemory_setDataUDataMemory_setData_77(&tData, pData); |
| 218 | udata_checkCommonDataudata_checkCommonData_77(&tData, pErrorCode); |
| 219 | return setCommonICUData(&tData, false, pErrorCode); |
| 220 | } |
| 221 | |
| 222 | #endif |
| 223 | |
| 224 | static const char * |
| 225 | findBasename(const char *path) { |
| 226 | const char *basename=uprv_strrchr(path, U_FILE_SEP_CHAR):: strrchr(path, '/'); |
| 227 | if(basename==nullptr) { |
| 228 | return path; |
| 229 | } else { |
| 230 | return basename+1; |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | #ifdef UDATA_DEBUG |
| 235 | static const char * |
| 236 | packageNameFromPath(const char *path) |
| 237 | { |
| 238 | if((path == nullptr) || (*path == 0)) { |
| 239 | return U_ICUDATA_NAME"icudt" "77" "l"; |
| 240 | } |
| 241 | |
| 242 | path = findBasename(path); |
| 243 | |
| 244 | if((path == nullptr) || (*path == 0)) { |
| 245 | return U_ICUDATA_NAME"icudt" "77" "l"; |
| 246 | } |
| 247 | |
| 248 | return path; |
| 249 | } |
| 250 | #endif |
| 251 | |
| 252 | /*----------------------------------------------------------------------* |
| 253 | * * |
| 254 | * Cache for common data * |
| 255 | * Functions for looking up or adding entries to a cache of * |
| 256 | * data that has been previously opened. Avoids a potentially * |
| 257 | * expensive operation of re-opening the data for subsequent * |
| 258 | * uses. * |
| 259 | * * |
| 260 | * Data remains cached for the duration of the process. * |
| 261 | * * |
| 262 | *----------------------------------------------------------------------*/ |
| 263 | |
| 264 | typedef struct DataCacheElement { |
| 265 | char *name; |
| 266 | UDataMemory *item; |
| 267 | } DataCacheElement; |
| 268 | |
| 269 | |
| 270 | |
| 271 | /* |
| 272 | * Deleter function for DataCacheElements. |
| 273 | * udata cleanup function closes the hash table; hash table in turn calls back to |
| 274 | * here for each entry. |
| 275 | */ |
| 276 | static void U_CALLCONV DataCacheElement_deleter(void *pDCEl) { |
| 277 | DataCacheElement* p = static_cast<DataCacheElement*>(pDCEl); |
| 278 | udata_closeudata_close_77(p->item); /* unmaps storage */ |
| 279 | uprv_freeuprv_free_77(p->name); /* delete the hash key string. */ |
| 280 | uprv_freeuprv_free_77(pDCEl); /* delete 'this' */ |
| 281 | } |
| 282 | |
| 283 | static void U_CALLCONV udata_initHashTable(UErrorCode &err) { |
| 284 | U_ASSERT(gCommonDataCache == nullptr)(static_cast <bool> (gCommonDataCache == nullptr) ? void (0) : __assert_fail ("gCommonDataCache == nullptr", __builtin_FILE (), __builtin_LINE (), __extension__ __PRETTY_FUNCTION__)); |
| 285 | gCommonDataCache = uhash_openuhash_open_77(uhash_hashCharsuhash_hashChars_77, uhash_compareCharsuhash_compareChars_77, nullptr, &err); |
| 286 | if (U_FAILURE(err)) { |
| 287 | return; |
| 288 | } |
| 289 | U_ASSERT(gCommonDataCache != nullptr)(static_cast <bool> (gCommonDataCache != nullptr) ? void (0) : __assert_fail ("gCommonDataCache != nullptr", __builtin_FILE (), __builtin_LINE (), __extension__ __PRETTY_FUNCTION__)); |
| 290 | uhash_setValueDeleteruhash_setValueDeleter_77(gCommonDataCache, DataCacheElement_deleter); |
| 291 | ucln_common_registerCleanupucln_common_registerCleanup_77(UCLN_COMMON_UDATA, udata_cleanup); |
| 292 | } |
| 293 | |
| 294 | /* udata_getCacheHashTable() |
| 295 | * Get the hash table used to store the data cache entries. |
| 296 | * Lazy create it if it doesn't yet exist. |
| 297 | */ |
| 298 | static UHashtable *udata_getHashTable(UErrorCode &err) { |
| 299 | umtx_initOnce(gCommonDataCacheInitOnce, &udata_initHashTable, err); |
| 300 | return gCommonDataCache; |
| 301 | } |
| 302 | |
| 303 | |
| 304 | |
| 305 | static UDataMemory *udata_findCachedData(const char *path, UErrorCode &err) |
| 306 | { |
| 307 | UHashtable *htable; |
| 308 | UDataMemory *retVal = nullptr; |
| 309 | DataCacheElement *el; |
| 310 | const char *baseName; |
| 311 | |
| 312 | htable = udata_getHashTable(err); |
| 313 | if (U_FAILURE(err)) { |
| 314 | return nullptr; |
| 315 | } |
| 316 | |
| 317 | baseName = findBasename(path); /* Cache remembers only the base name, not the full path. */ |
| 318 | umtx_lockumtx_lock_77(nullptr); |
| 319 | el = static_cast<DataCacheElement*>(uhash_getuhash_get_77(htable, baseName)); |
| 320 | umtx_unlockumtx_unlock_77(nullptr); |
| 321 | if (el != nullptr) { |
| 322 | retVal = el->item; |
| 323 | } |
| 324 | #ifdef UDATA_DEBUG |
| 325 | fprintf(stderrstderr, "Cache: [%s] -> %p\n", baseName, (void*) retVal); |
| 326 | #endif |
| 327 | return retVal; |
| 328 | } |
| 329 | |
| 330 | |
| 331 | static UDataMemory *udata_cacheDataItem(const char *path, UDataMemory *item, UErrorCode *pErr) { |
| 332 | DataCacheElement *newElement; |
| 333 | const char *baseName; |
| 334 | int32_t nameLen; |
| 335 | UHashtable *htable; |
| 336 | DataCacheElement *oldValue = nullptr; |
| 337 | UErrorCode subErr = U_ZERO_ERROR; |
| 338 | |
| 339 | htable = udata_getHashTable(*pErr); |
| 340 | if (U_FAILURE(*pErr)) { |
| 341 | return nullptr; |
| 342 | } |
| 343 | |
| 344 | /* Create a new DataCacheElement - the thingy we store in the hash table - |
| 345 | * and copy the supplied path and UDataMemoryItems into it. |
| 346 | */ |
| 347 | newElement = static_cast<DataCacheElement*>(uprv_mallocuprv_malloc_77(sizeof(DataCacheElement))); |
| 348 | if (newElement == nullptr) { |
| 349 | *pErr = U_MEMORY_ALLOCATION_ERROR; |
| 350 | return nullptr; |
| 351 | } |
| 352 | newElement->item = UDataMemory_createNewInstanceUDataMemory_createNewInstance_77(pErr); |
| 353 | if (U_FAILURE(*pErr)) { |
| 354 | uprv_freeuprv_free_77(newElement); |
| 355 | return nullptr; |
| 356 | } |
| 357 | UDatamemory_assignUDatamemory_assign_77(newElement->item, item); |
| 358 | |
| 359 | baseName = findBasename(path); |
| 360 | nameLen = static_cast<int32_t>(uprv_strlen(baseName):: strlen(baseName)); |
| 361 | newElement->name = static_cast<char*>(uprv_mallocuprv_malloc_77(nameLen + 1)); |
| 362 | if (newElement->name == nullptr) { |
| 363 | *pErr = U_MEMORY_ALLOCATION_ERROR; |
| 364 | uprv_freeuprv_free_77(newElement->item); |
| 365 | uprv_freeuprv_free_77(newElement); |
| 366 | return nullptr; |
| 367 | } |
| 368 | uprv_strcpy(newElement->name, baseName):: strcpy(newElement->name, baseName); |
| 369 | |
| 370 | /* Stick the new DataCacheElement into the hash table. |
| 371 | */ |
| 372 | umtx_lockumtx_lock_77(nullptr); |
| 373 | oldValue = static_cast<DataCacheElement*>(uhash_getuhash_get_77(htable, path)); |
| 374 | if (oldValue != nullptr) { |
| 375 | subErr = U_USING_DEFAULT_WARNING; |
| 376 | } |
| 377 | else { |
| 378 | uhash_putuhash_put_77( |
| 379 | htable, |
| 380 | newElement->name, /* Key */ |
| 381 | newElement, /* Value */ |
| 382 | &subErr); |
| 383 | } |
| 384 | umtx_unlockumtx_unlock_77(nullptr); |
| 385 | |
| 386 | #ifdef UDATA_DEBUG |
| 387 | fprintf(stderrstderr, "Cache: [%s] <<< %p : %s. vFunc=%p\n", newElement->name, |
| 388 | (void*) newElement->item, u_errorNameu_errorName_77(subErr), (void*) newElement->item->vFuncs); |
| 389 | #endif |
| 390 | |
| 391 | if (subErr == U_USING_DEFAULT_WARNING || U_FAILURE(subErr)) { |
| 392 | *pErr = subErr; /* copy sub err unto fillin ONLY if something happens. */ |
| 393 | uprv_freeuprv_free_77(newElement->name); |
| 394 | uprv_freeuprv_free_77(newElement->item); |
| 395 | uprv_freeuprv_free_77(newElement); |
| 396 | return oldValue ? oldValue->item : nullptr; |
| 397 | } |
| 398 | |
| 399 | return newElement->item; |
| 400 | } |
| 401 | |
| 402 | /*----------------------------------------------------------------------*============== |
| 403 | * * |
| 404 | * Path management. Could be shared with other tools/etc if need be * |
| 405 | * later on. * |
| 406 | * * |
| 407 | *----------------------------------------------------------------------*/ |
| 408 | |
| 409 | U_NAMESPACE_BEGINnamespace icu_77 { |
| 410 | |
| 411 | class UDataPathIterator |
| 412 | { |
| 413 | public: |
| 414 | UDataPathIterator(const char *path, const char *pkg, |
| 415 | const char *item, const char *suffix, UBool doCheckLastFour, |
| 416 | UErrorCode *pErrorCode); |
| 417 | const char *next(UErrorCode *pErrorCode); |
| 418 | |
| 419 | private: |
| 420 | const char *path; /* working path (u_icudata_Dir) */ |
| 421 | const char *nextPath; /* path following this one */ |
| 422 | const char *basename; /* item's basename (icudt22e_mt.res)*/ |
| 423 | |
| 424 | StringPiece suffix; /* item suffix (can be null) */ |
| 425 | |
| 426 | uint32_t basenameLen; /* length of basename */ |
| 427 | |
| 428 | CharString itemPath; /* path passed in with item name */ |
| 429 | CharString pathBuffer; /* output path for this it'ion */ |
| 430 | CharString packageStub; /* example: "/icudt28b". Will ignore that leaf in set paths. */ |
| 431 | |
| 432 | UBool checkLastFour; /* if true then allow paths such as '/foo/myapp.dat' |
| 433 | * to match, checks last 4 chars of suffix with |
| 434 | * last 4 of path, then previous chars. */ |
| 435 | }; |
| 436 | |
| 437 | /** |
| 438 | * @param iter The iterator to be initialized. Its current state does not matter. |
| 439 | * @param inPath The full pathname to be iterated over. If nullptr, defaults to U_ICUDATA_NAME |
| 440 | * @param pkg Package which is being searched for, ex "icudt28l". Will ignore leaf directories such as /icudt28l |
| 441 | * @param item Item to be searched for. Can include full path, such as /a/b/foo.dat |
| 442 | * @param inSuffix Optional item suffix, if not-null (ex. ".dat") then 'path' can contain 'item' explicitly. |
| 443 | * Ex: 'stuff.dat' would be found in '/a/foo:/tmp/stuff.dat:/bar/baz' as item #2. |
| 444 | * '/blarg/stuff.dat' would also be found. |
| 445 | * Note: inSuffix may also be the 'item' being searched for as well, (ex: "ibm-5348_P100-1997.cnv"), in which case |
| 446 | * the 'item' parameter is often the same as pkg. (Though sometimes might have a tree part as well, ex: "icudt62l-curr"). |
| 447 | */ |
| 448 | UDataPathIterator::UDataPathIterator(const char *inPath, const char *pkg, |
| 449 | const char *item, const char *inSuffix, UBool doCheckLastFour, |
| 450 | UErrorCode *pErrorCode) |
| 451 | { |
| 452 | #ifdef UDATA_DEBUG |
| 453 | fprintf(stderrstderr, "SUFFIX1=%s PATH=%s\n", inSuffix, inPath); |
| 454 | #endif |
| 455 | /** Path **/ |
| 456 | if(inPath == nullptr) { |
| 457 | path = u_getDataDirectoryu_getDataDirectory_77(); |
| 458 | } else { |
| 459 | path = inPath; |
| 460 | } |
| 461 | |
| 462 | /** Package **/ |
| 463 | if(pkg != nullptr) { |
| 464 | packageStub.append(U_FILE_SEP_CHAR'/', *pErrorCode).append(pkg, *pErrorCode); |
| 465 | #ifdef UDATA_DEBUG |
| 466 | fprintf(stderrstderr, "STUB=%s [%d]\n", packageStub.data(), packageStub.length()); |
| 467 | #endif |
| 468 | } |
| 469 | |
| 470 | /** Item **/ |
| 471 | basename = findBasename(item); |
| 472 | basenameLen = static_cast<int32_t>(uprv_strlen(basename):: strlen(basename)); |
| 473 | |
| 474 | /** Item path **/ |
| 475 | if(basename == item) { |
| 476 | nextPath = path; |
| 477 | } else { |
| 478 | itemPath.append(item, static_cast<int32_t>(basename - item), *pErrorCode); |
| 479 | nextPath = itemPath.data(); |
| 480 | } |
| 481 | #ifdef UDATA_DEBUG |
| 482 | fprintf(stderrstderr, "SUFFIX=%s [%p]\n", inSuffix, (void*) inSuffix); |
| 483 | #endif |
| 484 | |
| 485 | /** Suffix **/ |
| 486 | if(inSuffix != nullptr) { |
| 487 | suffix = inSuffix; |
| 488 | } else { |
| 489 | suffix = ""; |
| 490 | } |
| 491 | |
| 492 | checkLastFour = doCheckLastFour; |
| 493 | |
| 494 | /* pathBuffer will hold the output path strings returned by this iterator */ |
| 495 | |
| 496 | #ifdef UDATA_DEBUG |
| 497 | fprintf(stderrstderr, "0: init %s -> [path=%s], [base=%s], [suff=%s], [itempath=%s], [nextpath=%s], [checklast4=%s]\n", |
| 498 | item, |
| 499 | path, |
| 500 | basename, |
| 501 | suffix.data(), |
| 502 | itemPath.data(), |
| 503 | nextPath, |
| 504 | checkLastFour?"true":"false"); |
| 505 | #endif |
| 506 | } |
| 507 | |
| 508 | /** |
| 509 | * Get the next path on the list. |
| 510 | * |
| 511 | * @param iter The Iter to be used |
| 512 | * @param len If set, pointer to the length of the returned path, for convenience. |
| 513 | * @return Pointer to the next path segment, or nullptr if there are no more. |
| 514 | */ |
| 515 | const char *UDataPathIterator::next(UErrorCode *pErrorCode) |
| 516 | { |
| 517 | if(U_FAILURE(*pErrorCode)) { |
| 518 | return nullptr; |
| 519 | } |
| 520 | |
| 521 | const char *currentPath = nullptr; |
| 522 | int32_t pathLen = 0; |
| 523 | const char *pathBasename; |
| 524 | |
| 525 | do |
| 526 | { |
| 527 | if( nextPath == nullptr ) { |
| 528 | break; |
| 529 | } |
| 530 | currentPath = nextPath; |
| 531 | |
| 532 | if(nextPath == itemPath.data()) { /* we were processing item's path. */ |
| 533 | nextPath = path; /* start with regular path next tm. */ |
| 534 | pathLen = static_cast<int32_t>(uprv_strlen(currentPath):: strlen(currentPath)); |
| 535 | } else { |
| 536 | /* fix up next for next time */ |
| 537 | nextPath = uprv_strchr(currentPath, U_PATH_SEP_CHAR):: strchr(currentPath, ':'); |
| 538 | if(nextPath == nullptr) { |
| 539 | /* segment: entire path */ |
| 540 | pathLen = static_cast<int32_t>(uprv_strlen(currentPath):: strlen(currentPath)); |
| 541 | } else { |
| 542 | /* segment: until next segment */ |
| 543 | pathLen = static_cast<int32_t>(nextPath - currentPath); |
| 544 | /* skip divider */ |
| 545 | nextPath ++; |
| 546 | } |
| 547 | } |
| 548 | |
| 549 | if(pathLen == 0) { |
| 550 | continue; |
| 551 | } |
| 552 | |
| 553 | #ifdef UDATA_DEBUG |
| 554 | fprintf(stderrstderr, "rest of path (IDD) = %s\n", currentPath); |
| 555 | fprintf(stderrstderr, " "); |
| 556 | { |
| 557 | int32_t qqq; |
| 558 | for(qqq=0;qqq<pathLen;qqq++) |
| 559 | { |
| 560 | fprintf(stderrstderr, " "); |
| 561 | } |
| 562 | |
| 563 | fprintf(stderrstderr, "^\n"); |
| 564 | } |
| 565 | #endif |
| 566 | pathBuffer.clear().append(currentPath, pathLen, *pErrorCode); |
| 567 | |
| 568 | /* check for .dat files */ |
| 569 | pathBasename = findBasename(pathBuffer.data()); |
| 570 | |
| 571 | if(checkLastFour && |
| 572 | (pathLen>=4) && |
| 573 | uprv_strncmp(pathBuffer.data() +(pathLen-4), suffix.data(), 4):: strncmp(pathBuffer.data() +(pathLen-4), suffix.data(), 4)==0 && /* suffix matches */ |
| 574 | uprv_strncmp(findBasename(pathBuffer.data()), basename, basenameLen):: strncmp(findBasename(pathBuffer.data()), basename, basenameLen )==0 && /* base matches */ |
| 575 | uprv_strlen(pathBasename):: strlen(pathBasename)==(basenameLen+4)) { /* base+suffix = full len */ |
| 576 | |
| 577 | #ifdef UDATA_DEBUG |
| 578 | fprintf(stderrstderr, "Have %s file on the path: %s\n", suffix.data(), pathBuffer.data()); |
| 579 | #endif |
| 580 | /* do nothing */ |
| 581 | } |
| 582 | else |
| 583 | { /* regular dir path */ |
| 584 | if(pathBuffer[pathLen-1] != U_FILE_SEP_CHAR'/') { |
| 585 | if((pathLen>=4) && |
| 586 | uprv_strncmp(pathBuffer.data()+(pathLen-4), ".dat", 4):: strncmp(pathBuffer.data()+(pathLen-4), ".dat", 4) == 0) |
| 587 | { |
| 588 | #ifdef UDATA_DEBUG |
| 589 | fprintf(stderrstderr, "skipping non-directory .dat file %s\n", pathBuffer.data()); |
| 590 | #endif |
| 591 | continue; |
| 592 | } |
| 593 | |
| 594 | /* Check if it is a directory with the same name as our package */ |
| 595 | if(!packageStub.isEmpty() && |
| 596 | (pathLen > packageStub.length()) && |
| 597 | !uprv_strcmp(pathBuffer.data() + pathLen - packageStub.length(), packageStub.data()):: strcmp(pathBuffer.data() + pathLen - packageStub.length(), packageStub.data())) { |
| 598 | #ifdef UDATA_DEBUG |
| 599 | fprintf(stderrstderr, "Found stub %s (will add package %s of len %d)\n", packageStub.data(), basename, basenameLen); |
| 600 | #endif |
| 601 | pathBuffer.truncate(pathLen - packageStub.length()); |
| 602 | } |
| 603 | pathBuffer.append(U_FILE_SEP_CHAR'/', *pErrorCode); |
| 604 | } |
| 605 | |
| 606 | /* + basename */ |
| 607 | pathBuffer.append(packageStub.data()+1, packageStub.length()-1, *pErrorCode); |
| 608 | |
| 609 | if (!suffix.empty()) /* tack on suffix */ |
| 610 | { |
| 611 | if (suffix.length() > 4) { |
| 612 | // If the suffix is actually an item ("ibm-5348_P100-1997.cnv") and not an extension (".res") |
| 613 | // then we need to ensure that the path ends with a separator. |
| 614 | pathBuffer.ensureEndsWithFileSeparator(*pErrorCode); |
| 615 | } |
| 616 | pathBuffer.append(suffix, *pErrorCode); |
| 617 | } |
| 618 | } |
| 619 | |
| 620 | #ifdef UDATA_DEBUG |
| 621 | fprintf(stderrstderr, " --> %s\n", pathBuffer.data()); |
| 622 | #endif |
| 623 | |
| 624 | return pathBuffer.data(); |
| 625 | |
| 626 | } while(path); |
| 627 | |
| 628 | /* fell way off the end */ |
| 629 | return nullptr; |
| 630 | } |
| 631 | |
| 632 | U_NAMESPACE_END} |
| 633 | |
| 634 | /* ==================================================================================*/ |
| 635 | |
| 636 | |
| 637 | /*----------------------------------------------------------------------* |
| 638 | * * |
| 639 | * Add a static reference to the common data library * |
| 640 | * Unless overridden by an explicit udata_setCommonData, this will be * |
| 641 | * our common data. * |
| 642 | * * |
| 643 | *----------------------------------------------------------------------*/ |
| 644 | #if !defined(ICU_DATA_DIR_WINDOWS) |
| 645 | // When using the Windows system data, we expect only a single data file. |
| 646 | extern "C" const DataHeader U_DATA_API U_ICUDATA_ENTRY_POINTicudt77_dat; |
| 647 | #endif |
| 648 | |
| 649 | /* |
| 650 | * This would be a good place for weak-linkage declarations of |
| 651 | * partial-data-library access functions where each returns a pointer |
| 652 | * to its data package, if it is linked in. |
| 653 | */ |
| 654 | /* |
| 655 | extern const void *uprv_getICUData_collation() ATTRIBUTE_WEAK; |
| 656 | extern const void *uprv_getICUData_conversion() ATTRIBUTE_WEAK; |
| 657 | */ |
| 658 | |
| 659 | /*----------------------------------------------------------------------* |
| 660 | * * |
| 661 | * openCommonData Attempt to open a common format (.dat) file * |
| 662 | * Map it into memory (if it's not there already) * |
| 663 | * and return a UDataMemory object for it. * |
| 664 | * * |
| 665 | * If the requested data is already open and cached * |
| 666 | * just return the cached UDataMem object. * |
| 667 | * * |
| 668 | *----------------------------------------------------------------------*/ |
| 669 | static UDataMemory * |
| 670 | openCommonData(const char *path, /* Path from OpenChoice? */ |
| 671 | int32_t commonDataIndex, /* ICU Data (index >= 0) if path == nullptr */ |
| 672 | UErrorCode *pErrorCode) |
| 673 | { |
| 674 | UDataMemory tData; |
| 675 | const char *pathBuffer; |
| 676 | const char *inBasename; |
| 677 | |
| 678 | if (U_FAILURE(*pErrorCode)) { |
| 679 | return nullptr; |
| 680 | } |
| 681 | |
| 682 | UDataMemory_initUDataMemory_init_77(&tData); |
| 683 | |
| 684 | /* ??????? TODO revisit this */ |
| 685 | if (commonDataIndex >= 0) { |
| 686 | /* "mini-cache" for common ICU data */ |
| 687 | if(commonDataIndex >= UPRV_LENGTHOF(gCommonICUDataArray)(int32_t)(sizeof(gCommonICUDataArray)/sizeof((gCommonICUDataArray )[0]))) { |
| 688 | return nullptr; |
| 689 | } |
| 690 | { |
| 691 | Mutex lock; |
| 692 | if(gCommonICUDataArray[commonDataIndex] != nullptr) { |
| 693 | return gCommonICUDataArray[commonDataIndex]; |
| 694 | } |
| 695 | #if !defined(ICU_DATA_DIR_WINDOWS) |
| 696 | // When using the Windows system data, we expect only a single data file. |
| 697 | int32_t i; |
| 698 | for(i = 0; i < commonDataIndex; ++i) { |
| 699 | if(gCommonICUDataArray[i]->pHeader == &U_ICUDATA_ENTRY_POINTicudt77_dat) { |
| 700 | /* The linked-in data is already in the list. */ |
| 701 | return nullptr; |
| 702 | } |
| 703 | } |
| 704 | #endif |
| 705 | } |
| 706 | |
| 707 | /* Add the linked-in data to the list. */ |
| 708 | /* |
| 709 | * This is where we would check and call weakly linked partial-data-library |
| 710 | * access functions. |
| 711 | */ |
| 712 | /* |
| 713 | if (uprv_getICUData_collation) { |
| 714 | setCommonICUDataPointer(uprv_getICUData_collation(), false, pErrorCode); |
| 715 | } |
| 716 | if (uprv_getICUData_conversion) { |
| 717 | setCommonICUDataPointer(uprv_getICUData_conversion(), false, pErrorCode); |
| 718 | } |
| 719 | */ |
| 720 | #if !defined(ICU_DATA_DIR_WINDOWS) |
| 721 | // When using the Windows system data, we expect only a single data file. |
| 722 | setCommonICUDataPointer(&U_ICUDATA_ENTRY_POINTicudt77_dat, false, pErrorCode); |
| 723 | { |
| 724 | Mutex lock; |
| 725 | return gCommonICUDataArray[commonDataIndex]; |
| 726 | } |
| 727 | #endif |
| 728 | } |
| 729 | |
| 730 | |
| 731 | /* request is NOT for ICU Data. */ |
| 732 | |
| 733 | /* Find the base name portion of the supplied path. */ |
| 734 | /* inBasename will be left pointing somewhere within the original path string. */ |
| 735 | inBasename = findBasename(path); |
| 736 | #ifdef UDATA_DEBUG |
| 737 | fprintf(stderrstderr, "inBasename = %s\n", inBasename); |
| 738 | #endif |
| 739 | |
| 740 | if(*inBasename==0) { |
| 741 | /* no basename. This will happen if the original path was a directory name, */ |
| 742 | /* like "a/b/c/". (Fallback to separate files will still work.) */ |
| 743 | #ifdef UDATA_DEBUG |
| 744 | fprintf(stderrstderr, "ocd: no basename in %s, bailing.\n", path); |
| 745 | #endif |
| 746 | if (U_SUCCESS(*pErrorCode)) { |
| 747 | *pErrorCode=U_FILE_ACCESS_ERROR; |
| 748 | } |
| 749 | return nullptr; |
| 750 | } |
| 751 | |
| 752 | /* Is the requested common data file already open and cached? */ |
| 753 | /* Note that the cache is keyed by the base name only. The rest of the path, */ |
| 754 | /* if any, is not considered. */ |
| 755 | UDataMemory *dataToReturn = udata_findCachedData(inBasename, *pErrorCode); |
| 756 | if (dataToReturn != nullptr || U_FAILURE(*pErrorCode)) { |
| 757 | return dataToReturn; |
| 758 | } |
| 759 | |
| 760 | /* Requested item is not in the cache. |
| 761 | * Hunt it down, trying all the path locations |
| 762 | */ |
| 763 | |
| 764 | UDataPathIterator iter(u_getDataDirectoryu_getDataDirectory_77(), inBasename, path, ".dat", true, pErrorCode); |
| 765 | |
| 766 | while ((UDataMemory_isLoadedUDataMemory_isLoaded_77(&tData)==false) && (pathBuffer = iter.next(pErrorCode)) != nullptr) |
| 767 | { |
| 768 | #ifdef UDATA_DEBUG |
| 769 | fprintf(stderrstderr, "ocd: trying path %s - ", pathBuffer); |
| 770 | #endif |
| 771 | uprv_mapFileuprv_mapFile_77(&tData, pathBuffer, pErrorCode); |
| 772 | #ifdef UDATA_DEBUG |
| 773 | fprintf(stderrstderr, "%s\n", UDataMemory_isLoadedUDataMemory_isLoaded_77(&tData)?"LOADED":"not loaded"); |
| 774 | #endif |
| 775 | } |
| 776 | if (U_FAILURE(*pErrorCode)) { |
| 777 | return nullptr; |
| 778 | } |
| 779 | |
| 780 | if (U_FAILURE(*pErrorCode)) { |
| 781 | return nullptr; |
| 782 | } |
| 783 | if (!UDataMemory_isLoadedUDataMemory_isLoaded_77(&tData)) { |
| 784 | /* no common data */ |
| 785 | *pErrorCode=U_FILE_ACCESS_ERROR; |
| 786 | return nullptr; |
| 787 | } |
| 788 | |
| 789 | /* we have mapped a file, check its header */ |
| 790 | udata_checkCommonDataudata_checkCommonData_77(&tData, pErrorCode); |
| 791 | |
| 792 | |
| 793 | /* Cache the UDataMemory struct for this .dat file, |
| 794 | * so we won't need to hunt it down and map it again next time |
| 795 | * something is needed from it. */ |
| 796 | return udata_cacheDataItem(inBasename, &tData, pErrorCode); |
| 797 | } |
| 798 | |
| 799 | |
| 800 | /*----------------------------------------------------------------------* |
| 801 | * * |
| 802 | * extendICUData If the full set of ICU data was not loaded at * |
| 803 | * program startup, load it now. This function will * |
| 804 | * be called when the lookup of an ICU data item in * |
| 805 | * the common ICU data fails. * |
| 806 | * * |
| 807 | * return true if new data is loaded, false otherwise.* |
| 808 | * * |
| 809 | *----------------------------------------------------------------------*/ |
| 810 | static UBool extendICUData(UErrorCode *pErr) |
| 811 | { |
| 812 | UDataMemory *pData; |
| 813 | UDataMemory copyPData; |
| 814 | UBool didUpdate = false; |
| 815 | |
| 816 | /* |
| 817 | * There is a chance for a race condition here. |
| 818 | * Normally, ICU data is loaded from a DLL or via mmap() and |
| 819 | * setCommonICUData() will detect if the same address is set twice. |
| 820 | * If ICU is built with data loading via fread() then the address will |
| 821 | * be different each time the common data is loaded and we may add |
| 822 | * multiple copies of the data. |
| 823 | * In this case, use a mutex to prevent the race. |
| 824 | * Use a specific mutex to avoid nested locks of the global mutex. |
| 825 | */ |
| 826 | #if MAP_IMPLEMENTATION2==MAP_STDIO3 |
| 827 | static UMutex extendICUDataMutex; |
| 828 | umtx_lockumtx_lock_77(&extendICUDataMutex); |
| 829 | #endif |
| 830 | if(!umtx_loadAcquire(gHaveTriedToLoadCommonData)) { |
| 831 | /* See if we can explicitly open a .dat file for the ICUData. */ |
| 832 | pData = openCommonData( |
| 833 | U_ICUDATA_NAME"icudt" "77" "l", /* "icudt20l" , for example. */ |
| 834 | -1, /* Pretend we're not opening ICUData */ |
| 835 | pErr); |
| 836 | |
| 837 | /* How about if there is no pData, eh... */ |
| 838 | |
| 839 | UDataMemory_initUDataMemory_init_77(©PData); |
| 840 | if(pData != nullptr) { |
| 841 | UDatamemory_assignUDatamemory_assign_77(©PData, pData); |
| 842 | copyPData.map = nullptr; /* The mapping for this data is owned by the hash table */ |
| 843 | copyPData.mapAddr = nullptr; /* which will unmap it when ICU is shut down. */ |
| 844 | /* CommonICUData is also unmapped when ICU is shut down.*/ |
| 845 | /* To avoid unmapping the data twice, zero out the map */ |
| 846 | /* fields in the UDataMemory that we're assigning */ |
| 847 | /* to CommonICUData. */ |
| 848 | |
| 849 | didUpdate = /* no longer using this result */ |
Value stored to 'didUpdate' is never read | |
| 850 | setCommonICUData(©PData,/* The new common data. */ |
| 851 | false, /* No warnings if write didn't happen */ |
| 852 | pErr); /* setCommonICUData honors errors; NOP if error set */ |
| 853 | } |
| 854 | |
| 855 | umtx_storeRelease(gHaveTriedToLoadCommonData, 1); |
| 856 | } |
| 857 | |
| 858 | didUpdate = findCommonICUDataByName(U_ICUDATA_NAME"icudt" "77" "l", *pErr); /* Return 'true' when a racing writes out the extended */ |
| 859 | /* data after another thread has failed to see it (in openCommonData), so */ |
| 860 | /* extended data can be examined. */ |
| 861 | /* Also handles a race through here before gHaveTriedToLoadCommonData is set. */ |
| 862 | |
| 863 | #if MAP_IMPLEMENTATION2==MAP_STDIO3 |
| 864 | umtx_unlockumtx_unlock_77(&extendICUDataMutex); |
| 865 | #endif |
| 866 | return didUpdate; /* Return true if ICUData pointer was updated. */ |
| 867 | /* (Could potentially have been done by another thread racing */ |
| 868 | /* us through here, but that's fine, we still return true */ |
| 869 | /* so that current thread will also examine extended data. */ |
| 870 | } |
| 871 | |
| 872 | /*----------------------------------------------------------------------* |
| 873 | * * |
| 874 | * udata_setCommonData * |
| 875 | * * |
| 876 | *----------------------------------------------------------------------*/ |
| 877 | U_CAPIextern "C" void U_EXPORT2 |
| 878 | udata_setCommonDataudata_setCommonData_77(const void *data, UErrorCode *pErrorCode) { |
| 879 | UDataMemory dataMemory; |
| 880 | |
| 881 | if(pErrorCode==nullptr || U_FAILURE(*pErrorCode)) { |
| 882 | return; |
| 883 | } |
| 884 | |
| 885 | if(data==nullptr) { |
| 886 | *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; |
| 887 | return; |
| 888 | } |
| 889 | |
| 890 | /* set the data pointer and test for validity */ |
| 891 | UDataMemory_initUDataMemory_init_77(&dataMemory); |
| 892 | UDataMemory_setDataUDataMemory_setData_77(&dataMemory, data); |
| 893 | udata_checkCommonDataudata_checkCommonData_77(&dataMemory, pErrorCode); |
| 894 | if (U_FAILURE(*pErrorCode)) {return;} |
| 895 | |
| 896 | /* we have good data */ |
| 897 | /* Set it up as the ICU Common Data. */ |
| 898 | setCommonICUData(&dataMemory, true, pErrorCode); |
| 899 | } |
| 900 | |
| 901 | /*--------------------------------------------------------------------------- |
| 902 | * |
| 903 | * udata_setAppData |
| 904 | * |
| 905 | *---------------------------------------------------------------------------- */ |
| 906 | U_CAPIextern "C" void U_EXPORT2 |
| 907 | udata_setAppDataudata_setAppData_77(const char *path, const void *data, UErrorCode *err) |
| 908 | { |
| 909 | UDataMemory udm; |
| 910 | |
| 911 | if(err==nullptr || U_FAILURE(*err)) { |
| 912 | return; |
| 913 | } |
| 914 | if(data==nullptr) { |
| 915 | *err=U_ILLEGAL_ARGUMENT_ERROR; |
| 916 | return; |
| 917 | } |
| 918 | |
| 919 | UDataMemory_initUDataMemory_init_77(&udm); |
| 920 | UDataMemory_setDataUDataMemory_setData_77(&udm, data); |
| 921 | udata_checkCommonDataudata_checkCommonData_77(&udm, err); |
| 922 | udata_cacheDataItem(path, &udm, err); |
| 923 | } |
| 924 | |
| 925 | /*----------------------------------------------------------------------------* |
| 926 | * * |
| 927 | * checkDataItem Given a freshly located/loaded data item, either * |
| 928 | * an entry in a common file or a separately loaded file, * |
| 929 | * sanity check its header, and see if the data is * |
| 930 | * acceptable to the app. * |
| 931 | * If the data is good, create and return a UDataMemory * |
| 932 | * object that can be returned to the application. * |
| 933 | * Return nullptr on any sort of failure. * |
| 934 | * * |
| 935 | *----------------------------------------------------------------------------*/ |
| 936 | static UDataMemory * |
| 937 | checkDataItem |
| 938 | ( |
| 939 | const DataHeader *pHeader, /* The data item to be checked. */ |
| 940 | UDataMemoryIsAcceptable *isAcceptable, /* App's call-back function */ |
| 941 | void *context, /* pass-thru param for above. */ |
| 942 | const char *type, /* pass-thru param for above. */ |
| 943 | const char *name, /* pass-thru param for above. */ |
| 944 | UErrorCode *nonFatalErr, /* Error code if this data was not acceptable */ |
| 945 | /* but openChoice should continue with */ |
| 946 | /* trying to get data from fallback path. */ |
| 947 | UErrorCode *fatalErr /* Bad error, caller should return immediately */ |
| 948 | ) |
| 949 | { |
| 950 | UDataMemory *rDataMem = nullptr; /* the new UDataMemory, to be returned. */ |
| 951 | |
| 952 | if (U_FAILURE(*fatalErr)) { |
| 953 | return nullptr; |
| 954 | } |
| 955 | |
| 956 | if(pHeader->dataHeader.magic1==0xda && |
| 957 | pHeader->dataHeader.magic2==0x27 && |
| 958 | (isAcceptable==nullptr || isAcceptable(context, type, name, &pHeader->info)) |
| 959 | ) { |
| 960 | rDataMem=UDataMemory_createNewInstanceUDataMemory_createNewInstance_77(fatalErr); |
| 961 | if (U_FAILURE(*fatalErr)) { |
| 962 | return nullptr; |
| 963 | } |
| 964 | rDataMem->pHeader = pHeader; |
| 965 | } else { |
| 966 | /* the data is not acceptable, look further */ |
| 967 | /* If we eventually find something good, this errorcode will be */ |
| 968 | /* cleared out. */ |
| 969 | *nonFatalErr=U_INVALID_FORMAT_ERROR; |
| 970 | } |
| 971 | return rDataMem; |
| 972 | } |
| 973 | |
| 974 | /** |
| 975 | * @return 0 if not loaded, 1 if loaded or err |
| 976 | */ |
| 977 | static UDataMemory *doLoadFromIndividualFiles(const char *pkgName, |
| 978 | const char *dataPath, const char *tocEntryPathSuffix, |
| 979 | /* following arguments are the same as doOpenChoice itself */ |
| 980 | const char *path, const char *type, const char *name, |
| 981 | UDataMemoryIsAcceptable *isAcceptable, void *context, |
| 982 | UErrorCode *subErrorCode, |
| 983 | UErrorCode *pErrorCode) |
| 984 | { |
| 985 | const char *pathBuffer; |
| 986 | UDataMemory dataMemory; |
| 987 | UDataMemory *pEntryData; |
| 988 | |
| 989 | /* look in ind. files: package\nam.typ ========================= */ |
| 990 | /* init path iterator for individual files */ |
| 991 | UDataPathIterator iter(dataPath, pkgName, path, tocEntryPathSuffix, false, pErrorCode); |
| 992 | |
| 993 | while ((pathBuffer = iter.next(pErrorCode)) != nullptr) |
| 994 | { |
| 995 | #ifdef UDATA_DEBUG |
| 996 | fprintf(stderrstderr, "UDATA: trying individual file %s\n", pathBuffer); |
| 997 | #endif |
| 998 | if (uprv_mapFileuprv_mapFile_77(&dataMemory, pathBuffer, pErrorCode)) |
| 999 | { |
| 1000 | pEntryData = checkDataItem(dataMemory.pHeader, isAcceptable, context, type, name, subErrorCode, pErrorCode); |
| 1001 | if (pEntryData != nullptr) { |
| 1002 | /* Data is good. |
| 1003 | * Hand off ownership of the backing memory to the user's UDataMemory. |
| 1004 | * and return it. */ |
| 1005 | pEntryData->mapAddr = dataMemory.mapAddr; |
| 1006 | pEntryData->map = dataMemory.map; |
| 1007 | |
| 1008 | #ifdef UDATA_DEBUG |
| 1009 | fprintf(stderrstderr, "** Mapped file: %s\n", pathBuffer); |
| 1010 | #endif |
| 1011 | return pEntryData; |
| 1012 | } |
| 1013 | |
| 1014 | /* the data is not acceptable, or some error occurred. Either way, unmap the memory */ |
| 1015 | udata_closeudata_close_77(&dataMemory); |
| 1016 | |
| 1017 | /* If we had a nasty error, bail out completely. */ |
| 1018 | if (U_FAILURE(*pErrorCode)) { |
| 1019 | return nullptr; |
| 1020 | } |
| 1021 | |
| 1022 | /* Otherwise remember that we found data but didn't like it for some reason */ |
| 1023 | *subErrorCode=U_INVALID_FORMAT_ERROR; |
| 1024 | } |
| 1025 | #ifdef UDATA_DEBUG |
| 1026 | fprintf(stderrstderr, "%s\n", UDataMemory_isLoadedUDataMemory_isLoaded_77(&dataMemory)?"LOADED":"not loaded"); |
| 1027 | #endif |
| 1028 | } |
| 1029 | return nullptr; |
| 1030 | } |
| 1031 | |
| 1032 | /** |
| 1033 | * @return 0 if not loaded, 1 if loaded or err |
| 1034 | */ |
| 1035 | static UDataMemory *doLoadFromCommonData(UBool isICUData, const char * /*pkgName*/, |
| 1036 | const char * /*dataPath*/, const char * /*tocEntryPathSuffix*/, const char *tocEntryName, |
| 1037 | /* following arguments are the same as doOpenChoice itself */ |
| 1038 | const char *path, const char *type, const char *name, |
| 1039 | UDataMemoryIsAcceptable *isAcceptable, void *context, |
| 1040 | UErrorCode *subErrorCode, |
| 1041 | UErrorCode *pErrorCode) |
| 1042 | { |
| 1043 | UDataMemory *pEntryData; |
| 1044 | const DataHeader *pHeader; |
| 1045 | UDataMemory *pCommonData; |
| 1046 | int32_t commonDataIndex; |
| 1047 | UBool checkedExtendedICUData = false; |
| 1048 | /* try to get common data. The loop is for platforms such as the 390 that do |
| 1049 | * not initially load the full set of ICU data. If the lookup of an ICU data item |
| 1050 | * fails, the full (but slower to load) set is loaded, the and the loop repeats, |
| 1051 | * trying the lookup again. Once the full set of ICU data is loaded, the loop wont |
| 1052 | * repeat because the full set will be checked the first time through. |
| 1053 | * |
| 1054 | * The loop also handles the fallback to a .dat file if the application linked |
| 1055 | * to the stub data library rather than a real library. |
| 1056 | */ |
| 1057 | for (commonDataIndex = isICUData ? 0 : -1;;) { |
| 1058 | pCommonData=openCommonData(path, commonDataIndex, subErrorCode); /** search for pkg **/ |
| 1059 | |
| 1060 | if(U_SUCCESS(*subErrorCode) && pCommonData!=nullptr) { |
| 1061 | int32_t length; |
| 1062 | |
| 1063 | /* look up the data piece in the common data */ |
| 1064 | pHeader=pCommonData->vFuncs->Lookup(pCommonData, tocEntryName, &length, subErrorCode); |
| 1065 | #ifdef UDATA_DEBUG |
| 1066 | fprintf(stderrstderr, "%s: pHeader=%p - %s\n", tocEntryName, (void*) pHeader, u_errorNameu_errorName_77(*subErrorCode)); |
| 1067 | #endif |
| 1068 | |
| 1069 | if(pHeader!=nullptr) { |
| 1070 | pEntryData = checkDataItem(pHeader, isAcceptable, context, type, name, subErrorCode, pErrorCode); |
| 1071 | #ifdef UDATA_DEBUG |
| 1072 | fprintf(stderrstderr, "pEntryData=%p\n", (void*) pEntryData); |
| 1073 | #endif |
| 1074 | if (U_FAILURE(*pErrorCode)) { |
| 1075 | return nullptr; |
| 1076 | } |
| 1077 | if (pEntryData != nullptr) { |
| 1078 | pEntryData->length = length; |
| 1079 | return pEntryData; |
| 1080 | } |
| 1081 | } |
| 1082 | } |
| 1083 | // If we failed due to being out-of-memory, then stop early and report the error. |
| 1084 | if (*subErrorCode == U_MEMORY_ALLOCATION_ERROR) { |
| 1085 | *pErrorCode = *subErrorCode; |
| 1086 | return nullptr; |
| 1087 | } |
| 1088 | /* Data wasn't found. If we were looking for an ICUData item and there is |
| 1089 | * more data available, load it and try again, |
| 1090 | * otherwise break out of this loop. */ |
| 1091 | if (!isICUData) { |
| 1092 | return nullptr; |
| 1093 | } else if (pCommonData != nullptr) { |
| 1094 | ++commonDataIndex; /* try the next data package */ |
| 1095 | } else if ((!checkedExtendedICUData) && extendICUData(subErrorCode)) { |
| 1096 | checkedExtendedICUData = true; |
| 1097 | /* try this data package slot again: it changed from nullptr to non-nullptr */ |
| 1098 | } else { |
| 1099 | return nullptr; |
| 1100 | } |
| 1101 | } |
| 1102 | } |
| 1103 | |
| 1104 | /* |
| 1105 | * Identify the Time Zone resources that are subject to special override data loading. |
| 1106 | */ |
| 1107 | static UBool isTimeZoneFile(const char *name, const char *type) { |
| 1108 | return ((uprv_strcmp(type, "res"):: strcmp(type, "res") == 0) && |
| 1109 | (uprv_strcmp(name, "zoneinfo64"):: strcmp(name, "zoneinfo64") == 0 || |
| 1110 | uprv_strcmp(name, "timezoneTypes"):: strcmp(name, "timezoneTypes") == 0 || |
| 1111 | uprv_strcmp(name, "windowsZones"):: strcmp(name, "windowsZones") == 0 || |
| 1112 | uprv_strcmp(name, "metaZones"):: strcmp(name, "metaZones") == 0)); |
| 1113 | } |
| 1114 | |
| 1115 | /* |
| 1116 | * A note on the ownership of Mapped Memory |
| 1117 | * |
| 1118 | * For common format files, ownership resides with the UDataMemory object |
| 1119 | * that lives in the cache of opened common data. These UDataMemorys are private |
| 1120 | * to the udata implementation, and are never seen directly by users. |
| 1121 | * |
| 1122 | * The UDataMemory objects returned to users will have the address of some desired |
| 1123 | * data within the mapped region, but they wont have the mapping info itself, and thus |
| 1124 | * won't cause anything to be removed from memory when they are closed. |
| 1125 | * |
| 1126 | * For individual data files, the UDataMemory returned to the user holds the |
| 1127 | * information necessary to unmap the data on close. If the user independently |
| 1128 | * opens the same data file twice, two completely independent mappings will be made. |
| 1129 | * (There is no cache of opened data items from individual files, only a cache of |
| 1130 | * opened Common Data files, that is, files containing a collection of data items.) |
| 1131 | * |
| 1132 | * For common data passed in from the user via udata_setAppData() or |
| 1133 | * udata_setCommonData(), ownership remains with the user. |
| 1134 | * |
| 1135 | * UDataMemory objects themselves, as opposed to the memory they describe, |
| 1136 | * can be anywhere - heap, stack/local or global. |
| 1137 | * They have a flag to indicate when they're heap allocated and thus |
| 1138 | * must be deleted when closed. |
| 1139 | */ |
| 1140 | |
| 1141 | |
| 1142 | /*----------------------------------------------------------------------------* |
| 1143 | * * |
| 1144 | * main data loading functions * |
| 1145 | * * |
| 1146 | *----------------------------------------------------------------------------*/ |
| 1147 | static UDataMemory * |
| 1148 | doOpenChoice(const char *path, const char *type, const char *name, |
| 1149 | UDataMemoryIsAcceptable *isAcceptable, void *context, |
| 1150 | UErrorCode *pErrorCode) |
| 1151 | { |
| 1152 | UDataMemory *retVal = nullptr; |
| 1153 | |
| 1154 | const char *dataPath; |
| 1155 | |
| 1156 | int32_t tocEntrySuffixIndex; |
| 1157 | const char *tocEntryPathSuffix; |
| 1158 | UErrorCode subErrorCode=U_ZERO_ERROR; |
| 1159 | const char *treeChar; |
| 1160 | |
| 1161 | UBool isICUData = false; |
| 1162 | |
| 1163 | |
| 1164 | FileTracer::traceOpen(path, type, name); |
| 1165 | |
| 1166 | |
| 1167 | /* Is this path ICU data? */ |
| 1168 | if(path == nullptr || |
| 1169 | !strcmp(path, U_ICUDATA_ALIAS"ICUDATA") || /* "ICUDATA" */ |
| 1170 | !uprv_strncmp(path, U_ICUDATA_NAME U_TREE_SEPARATOR_STRING, /* "icudt26e-" */:: strncmp(path, "icudt" "77" "l" "-", :: strlen("icudt" "77" "l" "-")) |
| 1171 | uprv_strlen(U_ICUDATA_NAME U_TREE_SEPARATOR_STRING)):: strncmp(path, "icudt" "77" "l" "-", :: strlen("icudt" "77" "l" "-")) || |
| 1172 | !uprv_strncmp(path, U_ICUDATA_ALIAS U_TREE_SEPARATOR_STRING, /* "ICUDATA-" */:: strncmp(path, "ICUDATA" "-", :: strlen("ICUDATA" "-")) |
| 1173 | uprv_strlen(U_ICUDATA_ALIAS U_TREE_SEPARATOR_STRING)):: strncmp(path, "ICUDATA" "-", :: strlen("ICUDATA" "-"))) { |
| 1174 | isICUData = true; |
| 1175 | } |
| 1176 | |
| 1177 | #if (U_FILE_SEP_CHAR'/' != U_FILE_ALT_SEP_CHAR'/') /* Windows: try "foo\bar" and "foo/bar" */ |
| 1178 | /* remap from alternate path char to the main one */ |
| 1179 | CharString altSepPath; |
| 1180 | if(path) { |
| 1181 | if(uprv_strchr(path,U_FILE_ALT_SEP_CHAR):: strchr(path, '/') != nullptr) { |
| 1182 | altSepPath.append(path, *pErrorCode); |
| 1183 | char *p; |
| 1184 | while ((p = uprv_strchr(altSepPath.data(), U_FILE_ALT_SEP_CHAR):: strchr(altSepPath.data(), '/')) != nullptr) { |
| 1185 | *p = U_FILE_SEP_CHAR'/'; |
| 1186 | } |
| 1187 | #if defined (UDATA_DEBUG) |
| 1188 | fprintf(stderrstderr, "Changed path from [%s] to [%s]\n", path, altSepPath.data()); |
| 1189 | #endif |
| 1190 | path = altSepPath.data(); |
| 1191 | } |
| 1192 | } |
| 1193 | #endif |
| 1194 | |
| 1195 | CharString tocEntryName; /* entry name in tree format. ex: 'icudt28b/coll/ar.res' */ |
| 1196 | CharString tocEntryPath; /* entry name in path format. ex: 'icudt28b\\coll\\ar.res' */ |
| 1197 | |
| 1198 | CharString pkgName; |
| 1199 | CharString treeName; |
| 1200 | |
| 1201 | /* ======= Set up strings */ |
| 1202 | if(path==nullptr) { |
| 1203 | pkgName.append(U_ICUDATA_NAME"icudt" "77" "l", *pErrorCode); |
| 1204 | } else { |
| 1205 | const char *pkg; |
| 1206 | const char *first; |
| 1207 | pkg = uprv_strrchr(path, U_FILE_SEP_CHAR):: strrchr(path, '/'); |
| 1208 | first = uprv_strchr(path, U_FILE_SEP_CHAR):: strchr(path, '/'); |
| 1209 | if(uprv_pathIsAbsoluteuprv_pathIsAbsolute_77(path) || (pkg != first)) { /* more than one slash in the path- not a tree name */ |
| 1210 | /* see if this is an /absolute/path/to/package path */ |
| 1211 | if(pkg) { |
| 1212 | pkgName.append(pkg+1, *pErrorCode); |
| 1213 | } else { |
| 1214 | pkgName.append(path, *pErrorCode); |
| 1215 | } |
| 1216 | } else { |
| 1217 | treeChar = uprv_strchr(path, U_TREE_SEPARATOR):: strchr(path, '-'); |
| 1218 | if(treeChar) { |
| 1219 | treeName.append(treeChar+1, *pErrorCode); /* following '-' */ |
| 1220 | if(isICUData) { |
| 1221 | pkgName.append(U_ICUDATA_NAME"icudt" "77" "l", *pErrorCode); |
| 1222 | } else { |
| 1223 | pkgName.append(path, static_cast<int32_t>(treeChar - path), *pErrorCode); |
| 1224 | if (first == nullptr) { |
| 1225 | /* |
| 1226 | This user data has no path, but there is a tree name. |
| 1227 | Look up the correct path from the data cache later. |
| 1228 | */ |
| 1229 | path = pkgName.data(); |
| 1230 | } |
| 1231 | } |
| 1232 | } else { |
| 1233 | if(isICUData) { |
| 1234 | pkgName.append(U_ICUDATA_NAME"icudt" "77" "l", *pErrorCode); |
| 1235 | } else { |
| 1236 | pkgName.append(path, *pErrorCode); |
| 1237 | } |
| 1238 | } |
| 1239 | } |
| 1240 | } |
| 1241 | |
| 1242 | #ifdef UDATA_DEBUG |
| 1243 | fprintf(stderrstderr, " P=%s T=%s\n", pkgName.data(), treeName.data()); |
| 1244 | #endif |
| 1245 | |
| 1246 | /* setting up the entry name and file name |
| 1247 | * Make up a full name by appending the type to the supplied |
| 1248 | * name, assuming that a type was supplied. |
| 1249 | */ |
| 1250 | |
| 1251 | /* prepend the package */ |
| 1252 | tocEntryName.append(pkgName, *pErrorCode); |
| 1253 | tocEntryPath.append(pkgName, *pErrorCode); |
| 1254 | tocEntrySuffixIndex = tocEntryName.length(); |
| 1255 | |
| 1256 | if(!treeName.isEmpty()) { |
| 1257 | tocEntryName.append(U_TREE_ENTRY_SEP_CHAR'/', *pErrorCode).append(treeName, *pErrorCode); |
| 1258 | tocEntryPath.append(U_FILE_SEP_CHAR'/', *pErrorCode).append(treeName, *pErrorCode); |
| 1259 | } |
| 1260 | |
| 1261 | tocEntryName.append(U_TREE_ENTRY_SEP_CHAR'/', *pErrorCode).append(name, *pErrorCode); |
| 1262 | tocEntryPath.append(U_FILE_SEP_CHAR'/', *pErrorCode).append(name, *pErrorCode); |
| 1263 | if(type!=nullptr && *type!=0) { |
| 1264 | tocEntryName.append(".", *pErrorCode).append(type, *pErrorCode); |
| 1265 | tocEntryPath.append(".", *pErrorCode).append(type, *pErrorCode); |
| 1266 | } |
| 1267 | // The +1 is for the U_FILE_SEP_CHAR that is always appended above. |
| 1268 | tocEntryPathSuffix = tocEntryPath.data() + tocEntrySuffixIndex + 1; /* suffix starts here */ |
| 1269 | |
| 1270 | #ifdef UDATA_DEBUG |
| 1271 | fprintf(stderrstderr, " tocEntryName = %s\n", tocEntryName.data()); |
| 1272 | fprintf(stderrstderr, " tocEntryPath = %s\n", tocEntryName.data()); |
| 1273 | #endif |
| 1274 | |
| 1275 | #if !defined(ICU_DATA_DIR_WINDOWS) |
| 1276 | if(path == nullptr) { |
| 1277 | path = COMMON_DATA_NAME"icudt" "77" "l"; /* "icudt26e" */ |
| 1278 | } |
| 1279 | #else |
| 1280 | // When using the Windows system data, we expects only a single data file. |
| 1281 | path = COMMON_DATA_NAME"icudt" "77" "l"; /* "icudt26e" */ |
| 1282 | #endif |
| 1283 | |
| 1284 | /************************ Begin loop looking for ind. files ***************/ |
| 1285 | #ifdef UDATA_DEBUG |
| 1286 | fprintf(stderrstderr, "IND: inBasename = %s, pkg=%s\n", "(n/a)", packageNameFromPath(path)); |
| 1287 | #endif |
| 1288 | |
| 1289 | /* End of dealing with a null basename */ |
| 1290 | dataPath = u_getDataDirectoryu_getDataDirectory_77(); |
| 1291 | |
| 1292 | /**** Time zone individual files override */ |
| 1293 | if (isICUData && isTimeZoneFile(name, type)) { |
| 1294 | const char *tzFilesDir = u_getTimeZoneFilesDirectoryu_getTimeZoneFilesDirectory_77(pErrorCode); |
| 1295 | if (tzFilesDir[0] != 0) { |
| 1296 | #ifdef UDATA_DEBUG |
| 1297 | fprintf(stderrstderr, "Trying Time Zone Files directory = %s\n", tzFilesDir); |
| 1298 | #endif |
| 1299 | retVal = doLoadFromIndividualFiles(/* pkgName.data() */ "", tzFilesDir, tocEntryPathSuffix, |
| 1300 | /* path */ "", type, name, isAcceptable, context, &subErrorCode, pErrorCode); |
| 1301 | if((retVal != nullptr) || U_FAILURE(*pErrorCode)) { |
| 1302 | return retVal; |
| 1303 | } |
| 1304 | } |
| 1305 | } |
| 1306 | |
| 1307 | /**** COMMON PACKAGE - only if packages are first. */ |
| 1308 | if(gDataFileAccess == UDATA_PACKAGES_FIRST) { |
| 1309 | #ifdef UDATA_DEBUG |
| 1310 | fprintf(stderrstderr, "Trying packages (UDATA_PACKAGES_FIRST)\n"); |
| 1311 | #endif |
| 1312 | /* #2 */ |
| 1313 | retVal = doLoadFromCommonData(isICUData, |
| 1314 | pkgName.data(), dataPath, tocEntryPathSuffix, tocEntryName.data(), |
| 1315 | path, type, name, isAcceptable, context, &subErrorCode, pErrorCode); |
| 1316 | if((retVal != nullptr) || U_FAILURE(*pErrorCode)) { |
| 1317 | return retVal; |
| 1318 | } |
| 1319 | } |
| 1320 | |
| 1321 | /**** INDIVIDUAL FILES */ |
| 1322 | if((gDataFileAccess==UDATA_PACKAGES_FIRST) || |
| 1323 | (gDataFileAccess==UDATA_FILES_FIRST)) { |
| 1324 | #ifdef UDATA_DEBUG |
| 1325 | fprintf(stderrstderr, "Trying individual files\n"); |
| 1326 | #endif |
| 1327 | /* Check to make sure that there is a dataPath to iterate over */ |
| 1328 | if ((dataPath && *dataPath) || !isICUData) { |
| 1329 | retVal = doLoadFromIndividualFiles(pkgName.data(), dataPath, tocEntryPathSuffix, |
| 1330 | path, type, name, isAcceptable, context, &subErrorCode, pErrorCode); |
| 1331 | if((retVal != nullptr) || U_FAILURE(*pErrorCode)) { |
| 1332 | return retVal; |
| 1333 | } |
| 1334 | } |
| 1335 | } |
| 1336 | |
| 1337 | /**** COMMON PACKAGE */ |
| 1338 | if((gDataFileAccess==UDATA_ONLY_PACKAGES) || |
| 1339 | (gDataFileAccess==UDATA_FILES_FIRST)) { |
| 1340 | #ifdef UDATA_DEBUG |
| 1341 | fprintf(stderrstderr, "Trying packages (UDATA_ONLY_PACKAGES || UDATA_FILES_FIRST)\n"); |
| 1342 | #endif |
| 1343 | retVal = doLoadFromCommonData(isICUData, |
| 1344 | pkgName.data(), dataPath, tocEntryPathSuffix, tocEntryName.data(), |
| 1345 | path, type, name, isAcceptable, context, &subErrorCode, pErrorCode); |
| 1346 | if((retVal != nullptr) || U_FAILURE(*pErrorCode)) { |
| 1347 | return retVal; |
| 1348 | } |
| 1349 | } |
| 1350 | |
| 1351 | /* Load from DLL. If we haven't attempted package load, we also haven't had any chance to |
| 1352 | try a DLL (static or setCommonData/etc) load. |
| 1353 | If we ever have a "UDATA_ONLY_FILES", add it to the or list here. */ |
| 1354 | if(gDataFileAccess==UDATA_NO_FILES) { |
| 1355 | #ifdef UDATA_DEBUG |
| 1356 | fprintf(stderrstderr, "Trying common data (UDATA_NO_FILES)\n"); |
| 1357 | #endif |
| 1358 | retVal = doLoadFromCommonData(isICUData, |
| 1359 | pkgName.data(), "", tocEntryPathSuffix, tocEntryName.data(), |
| 1360 | path, type, name, isAcceptable, context, &subErrorCode, pErrorCode); |
| 1361 | if((retVal != nullptr) || U_FAILURE(*pErrorCode)) { |
| 1362 | return retVal; |
| 1363 | } |
| 1364 | } |
| 1365 | |
| 1366 | /* data not found */ |
| 1367 | if(U_SUCCESS(*pErrorCode)) { |
| 1368 | if(U_SUCCESS(subErrorCode)) { |
| 1369 | /* file not found */ |
| 1370 | *pErrorCode=U_FILE_ACCESS_ERROR; |
| 1371 | } else { |
| 1372 | /* entry point not found or rejected */ |
| 1373 | *pErrorCode=subErrorCode; |
| 1374 | } |
| 1375 | } |
| 1376 | return retVal; |
| 1377 | } |
| 1378 | |
| 1379 | |
| 1380 | |
| 1381 | /* API ---------------------------------------------------------------------- */ |
| 1382 | |
| 1383 | U_CAPIextern "C" UDataMemory * U_EXPORT2 |
| 1384 | udata_openudata_open_77(const char *path, const char *type, const char *name, |
| 1385 | UErrorCode *pErrorCode) { |
| 1386 | #ifdef UDATA_DEBUG |
| 1387 | fprintf(stderrstderr, "udata_open(): Opening: %s : %s . %s\n", (path?path:"nullptr"), name, type); |
| 1388 | fflush(stderrstderr); |
| 1389 | #endif |
| 1390 | |
| 1391 | if(pErrorCode==nullptr || U_FAILURE(*pErrorCode)) { |
| 1392 | return nullptr; |
| 1393 | } else if(name==nullptr || *name==0) { |
| 1394 | *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; |
| 1395 | return nullptr; |
| 1396 | } else { |
| 1397 | return doOpenChoice(path, type, name, nullptr, nullptr, pErrorCode); |
| 1398 | } |
| 1399 | } |
| 1400 | |
| 1401 | |
| 1402 | |
| 1403 | U_CAPIextern "C" UDataMemory * U_EXPORT2 |
| 1404 | udata_openChoiceudata_openChoice_77(const char *path, const char *type, const char *name, |
| 1405 | UDataMemoryIsAcceptable *isAcceptable, void *context, |
| 1406 | UErrorCode *pErrorCode) { |
| 1407 | #ifdef UDATA_DEBUG |
| 1408 | fprintf(stderrstderr, "udata_openChoice(): Opening: %s : %s . %s\n", (path?path:"nullptr"), name, type); |
| 1409 | #endif |
| 1410 | |
| 1411 | if(pErrorCode==nullptr || U_FAILURE(*pErrorCode)) { |
| 1412 | return nullptr; |
| 1413 | } else if(name==nullptr || *name==0 || isAcceptable==nullptr) { |
| 1414 | *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; |
| 1415 | return nullptr; |
| 1416 | } else { |
| 1417 | return doOpenChoice(path, type, name, isAcceptable, context, pErrorCode); |
| 1418 | } |
| 1419 | } |
| 1420 | |
| 1421 | |
| 1422 | |
| 1423 | U_CAPIextern "C" void U_EXPORT2 |
| 1424 | udata_getInfoudata_getInfo_77(UDataMemory *pData, UDataInfo *pInfo) { |
| 1425 | if(pInfo!=nullptr) { |
| 1426 | if(pData!=nullptr && pData->pHeader!=nullptr) { |
| 1427 | const UDataInfo *info=&pData->pHeader->info; |
| 1428 | uint16_t dataInfoSize=udata_getInfoSizeudata_getInfoSize_77(info); |
| 1429 | if(pInfo->size>dataInfoSize) { |
| 1430 | pInfo->size=dataInfoSize; |
| 1431 | } |
| 1432 | uprv_memcpy((uint16_t *)pInfo+1, (const uint16_t *)info+1, pInfo->size-2)do { clang diagnostic push
clang diagnostic ignored "-Waddress" (static_cast <bool> ((uint16_t *)pInfo+1 != __null) ? void (0) : __assert_fail ("(uint16_t *)pInfo+1 != __null", __builtin_FILE (), __builtin_LINE (), __extension__ __PRETTY_FUNCTION__)); ( static_cast <bool> ((const uint16_t *)info+1 != __null) ? void (0) : __assert_fail ("(const uint16_t *)info+1 != __null" , __builtin_FILE (), __builtin_LINE (), __extension__ __PRETTY_FUNCTION__ )); clang diagnostic pop :: memcpy((uint16_t *)pInfo+1, (const uint16_t *)info+1, pInfo->size-2); } while (false); |
| 1433 | if(info->isBigEndian!=U_IS_BIG_ENDIAN(1234 == 4321)) { |
| 1434 | /* opposite endianness */ |
| 1435 | uint16_t x=info->reservedWord; |
| 1436 | pInfo->reservedWord=(uint16_t)((x<<8)|(x>>8)); |
| 1437 | } |
| 1438 | } else { |
| 1439 | pInfo->size=0; |
| 1440 | } |
| 1441 | } |
| 1442 | } |
| 1443 | |
| 1444 | |
| 1445 | U_CAPIextern "C" void U_EXPORT2 udata_setFileAccessudata_setFileAccess_77(UDataFileAccess access, UErrorCode * /*status*/) |
| 1446 | { |
| 1447 | // Note: this function is documented as not thread safe. |
| 1448 | gDataFileAccess = access; |
| 1449 | } |