| File: | out/../deps/icu-small/source/common/ucnv_bld.cpp |
| Warning: | line 396, column 5 Value stored to 'mid' 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 | * COPYRIGHT: |
| 6 | * Copyright (c) 1996-2016, International Business Machines Corporation and |
| 7 | * others. All Rights Reserved. |
| 8 | ******************************************************************** |
| 9 | * |
| 10 | * ucnv_bld.cpp: |
| 11 | * |
| 12 | * Defines functions that are used in the creation/initialization/deletion |
| 13 | * of converters and related structures. |
| 14 | * uses uconv_io.h routines to access disk information |
| 15 | * is used by ucnv.h to implement public API create/delete/flushCache routines |
| 16 | * Modification History: |
| 17 | * |
| 18 | * Date Name Description |
| 19 | * |
| 20 | * 06/20/2000 helena OS/400 port changes; mostly typecast. |
| 21 | * 06/29/2000 helena Major rewrite of the callback interface. |
| 22 | */ |
| 23 | |
| 24 | #include "unicode/utypes.h" |
| 25 | |
| 26 | #if !UCONFIG_NO_CONVERSION0 |
| 27 | |
| 28 | #include "unicode/putil.h" |
| 29 | #include "unicode/udata.h" |
| 30 | #include "unicode/ucnv.h" |
| 31 | #include "unicode/uloc.h" |
| 32 | #include "mutex.h" |
| 33 | #include "putilimp.h" |
| 34 | #include "uassert.h" |
| 35 | #include "utracimp.h" |
| 36 | #include "ucnv_io.h" |
| 37 | #include "ucnv_bld.h" |
| 38 | #include "ucnvmbcs.h" |
| 39 | #include "ucnv_ext.h" |
| 40 | #include "ucnv_cnv.h" |
| 41 | #include "ucnv_imp.h" |
| 42 | #include "uhash.h" |
| 43 | #include "umutex.h" |
| 44 | #include "cstring.h" |
| 45 | #include "cmemory.h" |
| 46 | #include "ucln_cmn.h" |
| 47 | #include "ustr_cnv.h" |
| 48 | |
| 49 | |
| 50 | #if 0 |
| 51 | #include <stdio.h> |
| 52 | extern void UCNV_DEBUG_LOG(char *what, char *who, void *p, int l); |
| 53 | #define UCNV_DEBUG_LOG(x,y,z) UCNV_DEBUG_LOG(x,y,z,__LINE__) |
| 54 | #else |
| 55 | # define UCNV_DEBUG_LOG(x,y,z) |
| 56 | #endif |
| 57 | |
| 58 | static const UConverterSharedData * const |
| 59 | converterData[UCNV_NUMBER_OF_SUPPORTED_CONVERTER_TYPES]={ |
| 60 | NULL__null, NULL__null, |
| 61 | |
| 62 | #if UCONFIG_NO_LEGACY_CONVERSION0 |
| 63 | NULL__null, |
| 64 | #else |
| 65 | &_MBCSData_MBCSData_71, |
| 66 | #endif |
| 67 | |
| 68 | &_Latin1Data_Latin1Data_71, |
| 69 | &_UTF8Data_UTF8Data_71, &_UTF16BEData_UTF16BEData_71, &_UTF16LEData_UTF16LEData_71, |
| 70 | #if UCONFIG_ONLY_HTML_CONVERSION0 |
| 71 | NULL__null, NULL__null, |
| 72 | #else |
| 73 | &_UTF32BEData_UTF32BEData_71, &_UTF32LEData_UTF32LEData_71, |
| 74 | #endif |
| 75 | NULL__null, |
| 76 | |
| 77 | #if UCONFIG_NO_LEGACY_CONVERSION0 |
| 78 | NULL__null, |
| 79 | #else |
| 80 | &_ISO2022Data_ISO2022Data_71, |
| 81 | #endif |
| 82 | |
| 83 | #if UCONFIG_NO_LEGACY_CONVERSION0 || UCONFIG_ONLY_HTML_CONVERSION0 |
| 84 | NULL__null, NULL__null, NULL__null, NULL__null, NULL__null, NULL__null, |
| 85 | NULL__null, NULL__null, NULL__null, NULL__null, NULL__null, NULL__null, |
| 86 | NULL__null, |
| 87 | #else |
| 88 | &_LMBCSData1_LMBCSData1_71,&_LMBCSData2_LMBCSData2_71, &_LMBCSData3_LMBCSData3_71, &_LMBCSData4_LMBCSData4_71, &_LMBCSData5_LMBCSData5_71, &_LMBCSData6_LMBCSData6_71, |
| 89 | &_LMBCSData8_LMBCSData8_71,&_LMBCSData11_LMBCSData11_71,&_LMBCSData16_LMBCSData16_71,&_LMBCSData17_LMBCSData17_71,&_LMBCSData18_LMBCSData18_71,&_LMBCSData19_LMBCSData19_71, |
| 90 | &_HZData_HZData_71, |
| 91 | #endif |
| 92 | |
| 93 | #if UCONFIG_ONLY_HTML_CONVERSION0 |
| 94 | NULL__null, |
| 95 | #else |
| 96 | &_SCSUData_SCSUData_71, |
| 97 | #endif |
| 98 | |
| 99 | |
| 100 | #if UCONFIG_NO_LEGACY_CONVERSION0 || UCONFIG_ONLY_HTML_CONVERSION0 |
| 101 | NULL__null, |
| 102 | #else |
| 103 | &_ISCIIData_ISCIIData_71, |
| 104 | #endif |
| 105 | |
| 106 | &_ASCIIData_ASCIIData_71, |
| 107 | #if UCONFIG_ONLY_HTML_CONVERSION0 |
| 108 | NULL__null, NULL__null, &_UTF16Data_UTF16Data_71, NULL__null, NULL__null, NULL__null, |
| 109 | #else |
| 110 | &_UTF7Data_UTF7Data_71, &_Bocu1Data_Bocu1Data_71, &_UTF16Data_UTF16Data_71, &_UTF32Data_UTF32Data_71, &_CESU8Data_CESU8Data_71, &_IMAPData_IMAPData_71, |
| 111 | #endif |
| 112 | |
| 113 | #if UCONFIG_NO_LEGACY_CONVERSION0 || UCONFIG_ONLY_HTML_CONVERSION0 |
| 114 | NULL__null, |
| 115 | #else |
| 116 | &_CompoundTextData_CompoundTextData_71 |
| 117 | #endif |
| 118 | }; |
| 119 | |
| 120 | /* Please keep this in binary sorted order for getAlgorithmicTypeFromName. |
| 121 | Also the name should be in lower case and all spaces, dashes and underscores |
| 122 | removed |
| 123 | */ |
| 124 | static struct { |
| 125 | const char *name; |
| 126 | const UConverterType type; |
| 127 | } const cnvNameType[] = { |
| 128 | #if !UCONFIG_ONLY_HTML_CONVERSION0 |
| 129 | { "bocu1", UCNV_BOCU1 }, |
| 130 | { "cesu8", UCNV_CESU8 }, |
| 131 | #endif |
| 132 | #if !UCONFIG_NO_LEGACY_CONVERSION0 && !UCONFIG_ONLY_HTML_CONVERSION0 |
| 133 | { "hz",UCNV_HZ }, |
| 134 | #endif |
| 135 | #if !UCONFIG_ONLY_HTML_CONVERSION0 |
| 136 | { "imapmailboxname", UCNV_IMAP_MAILBOX }, |
| 137 | #endif |
| 138 | #if !UCONFIG_NO_LEGACY_CONVERSION0 && !UCONFIG_ONLY_HTML_CONVERSION0 |
| 139 | { "iscii", UCNV_ISCII }, |
| 140 | #endif |
| 141 | #if !UCONFIG_NO_LEGACY_CONVERSION0 |
| 142 | { "iso2022", UCNV_ISO_2022 }, |
| 143 | #endif |
| 144 | { "iso88591", UCNV_LATIN_1 }, |
| 145 | #if !UCONFIG_NO_LEGACY_CONVERSION0 && !UCONFIG_ONLY_HTML_CONVERSION0 |
| 146 | { "lmbcs1", UCNV_LMBCS_1 }, |
| 147 | { "lmbcs11",UCNV_LMBCS_11 }, |
| 148 | { "lmbcs16",UCNV_LMBCS_16 }, |
| 149 | { "lmbcs17",UCNV_LMBCS_17 }, |
| 150 | { "lmbcs18",UCNV_LMBCS_18 }, |
| 151 | { "lmbcs19",UCNV_LMBCS_19 }, |
| 152 | { "lmbcs2", UCNV_LMBCS_2 }, |
| 153 | { "lmbcs3", UCNV_LMBCS_3 }, |
| 154 | { "lmbcs4", UCNV_LMBCS_4 }, |
| 155 | { "lmbcs5", UCNV_LMBCS_5 }, |
| 156 | { "lmbcs6", UCNV_LMBCS_6 }, |
| 157 | { "lmbcs8", UCNV_LMBCS_8 }, |
| 158 | #endif |
| 159 | #if !UCONFIG_ONLY_HTML_CONVERSION0 |
| 160 | { "scsu", UCNV_SCSU }, |
| 161 | #endif |
| 162 | { "usascii", UCNV_US_ASCII }, |
| 163 | { "utf16", UCNV_UTF16 }, |
| 164 | { "utf16be", UCNV_UTF16_BigEndian }, |
| 165 | { "utf16le", UCNV_UTF16_LittleEndian }, |
| 166 | #if U_IS_BIG_ENDIAN(1234 == 4321) |
| 167 | { "utf16oppositeendian", UCNV_UTF16_LittleEndian }, |
| 168 | { "utf16platformendian", UCNV_UTF16_BigEndian }, |
| 169 | #else |
| 170 | { "utf16oppositeendian", UCNV_UTF16_BigEndian}, |
| 171 | { "utf16platformendian", UCNV_UTF16_LittleEndian }, |
| 172 | #endif |
| 173 | #if !UCONFIG_ONLY_HTML_CONVERSION0 |
| 174 | { "utf32", UCNV_UTF32 }, |
| 175 | { "utf32be", UCNV_UTF32_BigEndian }, |
| 176 | { "utf32le", UCNV_UTF32_LittleEndian }, |
| 177 | #if U_IS_BIG_ENDIAN(1234 == 4321) |
| 178 | { "utf32oppositeendian", UCNV_UTF32_LittleEndian }, |
| 179 | { "utf32platformendian", UCNV_UTF32_BigEndian }, |
| 180 | #else |
| 181 | { "utf32oppositeendian", UCNV_UTF32_BigEndian }, |
| 182 | { "utf32platformendian", UCNV_UTF32_LittleEndian }, |
| 183 | #endif |
| 184 | #endif |
| 185 | #if !UCONFIG_ONLY_HTML_CONVERSION0 |
| 186 | { "utf7", UCNV_UTF7 }, |
| 187 | #endif |
| 188 | { "utf8", UCNV_UTF8 }, |
| 189 | #if !UCONFIG_ONLY_HTML_CONVERSION0 |
| 190 | { "x11compoundtext", UCNV_COMPOUND_TEXT} |
| 191 | #endif |
| 192 | }; |
| 193 | |
| 194 | |
| 195 | /*initializes some global variables */ |
| 196 | static UHashtable *SHARED_DATA_HASHTABLE = NULL__null; |
| 197 | static icu::UMutex cnvCacheMutex; |
| 198 | /* Note: the global mutex is used for */ |
| 199 | /* reference count updates. */ |
| 200 | |
| 201 | static const char **gAvailableConverters = NULL__null; |
| 202 | static uint16_t gAvailableConverterCount = 0; |
| 203 | static icu::UInitOnce gAvailableConvertersInitOnce = U_INITONCE_INITIALIZER{{ 0 }, U_ZERO_ERROR}; |
| 204 | |
| 205 | #if !U_CHARSET_IS_UTF81 |
| 206 | |
| 207 | /* This contains the resolved converter name. So no further alias lookup is needed again. */ |
| 208 | static char gDefaultConverterNameBuffer[UCNV_MAX_CONVERTER_NAME_LENGTH60 + 1]; /* +1 for NULL */ |
| 209 | static const char *gDefaultConverterName = NULL__null; |
| 210 | |
| 211 | /* |
| 212 | If the default converter is an algorithmic converter, this is the cached value. |
| 213 | We don't cache a full UConverter and clone it because ucnv_clone doesn't have |
| 214 | less overhead than an algorithmic open. We don't cache non-algorithmic converters |
| 215 | because ucnv_flushCache must be able to unload the default converter and its table. |
| 216 | */ |
| 217 | static const UConverterSharedData *gDefaultAlgorithmicSharedData = NULL__null; |
| 218 | |
| 219 | /* Does gDefaultConverterName have a converter option and require extra parsing? */ |
| 220 | static UBool gDefaultConverterContainsOption; |
| 221 | |
| 222 | #endif /* !U_CHARSET_IS_UTF8 */ |
| 223 | |
| 224 | static const char DATA_TYPE[] = "cnv"; |
| 225 | |
| 226 | /* ucnv_flushAvailableConverterCache. This is only called from ucnv_cleanup(). |
| 227 | * If it is ever to be called from elsewhere, synchronization |
| 228 | * will need to be considered. |
| 229 | */ |
| 230 | static void |
| 231 | ucnv_flushAvailableConverterCache() { |
| 232 | gAvailableConverterCount = 0; |
| 233 | if (gAvailableConverters) { |
| 234 | uprv_freeuprv_free_71((char **)gAvailableConverters); |
| 235 | gAvailableConverters = NULL__null; |
| 236 | } |
| 237 | gAvailableConvertersInitOnce.reset(); |
| 238 | } |
| 239 | |
| 240 | /* ucnv_cleanup - delete all storage held by the converter cache, except any */ |
| 241 | /* in use by open converters. */ |
| 242 | /* Not thread safe. */ |
| 243 | /* Not supported API. */ |
| 244 | static UBool U_CALLCONV ucnv_cleanup(void) { |
| 245 | ucnv_flushCacheucnv_flushCache_71(); |
| 246 | if (SHARED_DATA_HASHTABLE != NULL__null && uhash_countuhash_count_71(SHARED_DATA_HASHTABLE) == 0) { |
| 247 | uhash_closeuhash_close_71(SHARED_DATA_HASHTABLE); |
| 248 | SHARED_DATA_HASHTABLE = NULL__null; |
| 249 | } |
| 250 | |
| 251 | /* Isn't called from flushCache because other threads may have preexisting references to the table. */ |
| 252 | ucnv_flushAvailableConverterCache(); |
| 253 | |
| 254 | #if !U_CHARSET_IS_UTF81 |
| 255 | gDefaultConverterName = NULL__null; |
| 256 | gDefaultConverterNameBuffer[0] = 0; |
| 257 | gDefaultConverterContainsOption = FALSE0; |
| 258 | gDefaultAlgorithmicSharedData = NULL__null; |
| 259 | #endif |
| 260 | |
| 261 | return (SHARED_DATA_HASHTABLE == NULL__null); |
| 262 | } |
| 263 | |
| 264 | U_CAPIextern "C" void U_EXPORT2 |
| 265 | ucnv_enableCleanupucnv_enableCleanup_71(void) { |
| 266 | ucln_common_registerCleanupucln_common_registerCleanup_71(UCLN_COMMON_UCNV, ucnv_cleanup); |
| 267 | } |
| 268 | |
| 269 | static UBool U_CALLCONV |
| 270 | isCnvAcceptable(void * /*context*/, |
| 271 | const char * /*type*/, const char * /*name*/, |
| 272 | const UDataInfo *pInfo) { |
| 273 | return (UBool)( |
| 274 | pInfo->size>=20 && |
| 275 | pInfo->isBigEndian==U_IS_BIG_ENDIAN(1234 == 4321) && |
| 276 | pInfo->charsetFamily==U_CHARSET_FAMILY0 && |
| 277 | pInfo->sizeofUChar==U_SIZEOF_UCHAR2 && |
| 278 | pInfo->dataFormat[0]==0x63 && /* dataFormat="cnvt" */ |
| 279 | pInfo->dataFormat[1]==0x6e && |
| 280 | pInfo->dataFormat[2]==0x76 && |
| 281 | pInfo->dataFormat[3]==0x74 && |
| 282 | pInfo->formatVersion[0]==6); /* Everything will be version 6 */ |
| 283 | } |
| 284 | |
| 285 | /** |
| 286 | * Un flatten shared data from a UDATA.. |
| 287 | */ |
| 288 | static UConverterSharedData* |
| 289 | ucnv_data_unFlattenClone(UConverterLoadArgs *pArgs, UDataMemory *pData, UErrorCode *status) |
| 290 | { |
| 291 | /* UDataInfo info; -- necessary only if some converters have different formatVersion */ |
| 292 | const uint8_t *raw = (const uint8_t *)udata_getMemoryudata_getMemory_71(pData); |
| 293 | const UConverterStaticData *source = (const UConverterStaticData *) raw; |
| 294 | UConverterSharedData *data; |
| 295 | UConverterType type = (UConverterType)source->conversionType; |
| 296 | |
| 297 | if(U_FAILURE(*status)) |
| 298 | return NULL__null; |
| 299 | |
| 300 | if( (uint16_t)type >= UCNV_NUMBER_OF_SUPPORTED_CONVERTER_TYPES || |
| 301 | converterData[type] == NULL__null || |
| 302 | !converterData[type]->isReferenceCounted || |
| 303 | converterData[type]->referenceCounter != 1 || |
| 304 | source->structSize != sizeof(UConverterStaticData)) |
| 305 | { |
| 306 | *status = U_INVALID_TABLE_FORMAT; |
| 307 | return NULL__null; |
| 308 | } |
| 309 | |
| 310 | data = (UConverterSharedData *)uprv_mallocuprv_malloc_71(sizeof(UConverterSharedData)); |
| 311 | if(data == NULL__null) { |
| 312 | *status = U_MEMORY_ALLOCATION_ERROR; |
| 313 | return NULL__null; |
| 314 | } |
| 315 | |
| 316 | /* copy initial values from the static structure for this type */ |
| 317 | uprv_memcpy(data, converterData[type], sizeof(UConverterSharedData))do { clang diagnostic push
clang diagnostic ignored "-Waddress" (void)0; (void)0; clang diagnostic pop :: memcpy(data, converterData [type], sizeof(UConverterSharedData)); } while (false); |
| 318 | |
| 319 | data->staticData = source; |
| 320 | |
| 321 | data->sharedDataCached = FALSE0; |
| 322 | |
| 323 | /* fill in fields from the loaded data */ |
| 324 | data->dataMemory = (void*)pData; /* for future use */ |
| 325 | |
| 326 | if(data->impl->load != NULL__null) { |
| 327 | data->impl->load(data, pArgs, raw + source->structSize, status); |
| 328 | if(U_FAILURE(*status)) { |
| 329 | uprv_freeuprv_free_71(data); |
| 330 | return NULL__null; |
| 331 | } |
| 332 | } |
| 333 | return data; |
| 334 | } |
| 335 | |
| 336 | /*Takes an alias name gets an actual converter file name |
| 337 | *goes to disk and opens it. |
| 338 | *allocates the memory and returns a new UConverter object |
| 339 | */ |
| 340 | static UConverterSharedData *createConverterFromFile(UConverterLoadArgs *pArgs, UErrorCode * err) |
| 341 | { |
| 342 | UDataMemory *data; |
| 343 | UConverterSharedData *sharedData; |
| 344 | |
| 345 | UTRACE_ENTRY_OC(UTRACE_UCNV_LOAD); |
| 346 | |
| 347 | if (U_FAILURE (*err)) { |
| 348 | UTRACE_EXIT_STATUS(*err); |
| 349 | return NULL__null; |
| 350 | } |
| 351 | |
| 352 | UTRACE_DATA2(UTRACE_OPEN_CLOSE, "load converter %s from package %s", pArgs->name, pArgs->pkg); |
| 353 | |
| 354 | data = udata_openChoiceudata_openChoice_71(pArgs->pkg, DATA_TYPE, pArgs->name, isCnvAcceptable, NULL__null, err); |
| 355 | if(U_FAILURE(*err)) |
| 356 | { |
| 357 | UTRACE_EXIT_STATUS(*err); |
| 358 | return NULL__null; |
| 359 | } |
| 360 | |
| 361 | sharedData = ucnv_data_unFlattenClone(pArgs, data, err); |
| 362 | if(U_FAILURE(*err)) |
| 363 | { |
| 364 | udata_closeudata_close_71(data); |
| 365 | UTRACE_EXIT_STATUS(*err); |
| 366 | return NULL__null; |
| 367 | } |
| 368 | |
| 369 | /* |
| 370 | * TODO Store pkg in a field in the shared data so that delta-only converters |
| 371 | * can load base converters from the same package. |
| 372 | * If the pkg name is longer than the field, then either do not load the converter |
| 373 | * in the first place, or just set the pkg field to "". |
| 374 | */ |
| 375 | |
| 376 | UTRACE_EXIT_PTR_STATUS(sharedData, *err); |
| 377 | return sharedData; |
| 378 | } |
| 379 | |
| 380 | /*returns a converter type from a string |
| 381 | */ |
| 382 | static const UConverterSharedData * |
| 383 | getAlgorithmicTypeFromName(const char *realName) |
| 384 | { |
| 385 | uint32_t mid, start, limit; |
| 386 | uint32_t lastMid; |
| 387 | int result; |
| 388 | char strippedName[UCNV_MAX_CONVERTER_NAME_LENGTH60]; |
| 389 | |
| 390 | /* Lower case and remove ignoreable characters. */ |
| 391 | ucnv_io_stripForCompareucnv_io_stripASCIIForCompare_71(strippedName, realName); |
| 392 | |
| 393 | /* do a binary search for the alias */ |
| 394 | start = 0; |
| 395 | limit = UPRV_LENGTHOF(cnvNameType)(int32_t)(sizeof(cnvNameType)/sizeof((cnvNameType)[0])); |
| 396 | mid = limit; |
Value stored to 'mid' is never read | |
| 397 | lastMid = UINT32_MAX(4294967295U); |
| 398 | |
| 399 | for (;;) { |
| 400 | mid = (uint32_t)((start + limit) / 2); |
| 401 | if (lastMid == mid) { /* Have we moved? */ |
| 402 | break; /* We haven't moved, and it wasn't found. */ |
| 403 | } |
| 404 | lastMid = mid; |
| 405 | result = uprv_strcmp(strippedName, cnvNameType[mid].name):: strcmp(strippedName, cnvNameType[mid].name); |
| 406 | |
| 407 | if (result < 0) { |
| 408 | limit = mid; |
| 409 | } else if (result > 0) { |
| 410 | start = mid; |
| 411 | } else { |
| 412 | return converterData[cnvNameType[mid].type]; |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | return NULL__null; |
| 417 | } |
| 418 | |
| 419 | /* |
| 420 | * Based on the number of known converters, this determines how many times larger |
| 421 | * the shared data hash table should be. When on small platforms, or just a couple |
| 422 | * of converters are used, this number should be 2. When memory is plentiful, or |
| 423 | * when ucnv_countAvailable is ever used with a lot of available converters, |
| 424 | * this should be 4. |
| 425 | * Larger numbers reduce the number of hash collisions, but use more memory. |
| 426 | */ |
| 427 | #define UCNV_CACHE_LOAD_FACTOR2 2 |
| 428 | |
| 429 | /* Puts the shared data in the static hashtable SHARED_DATA_HASHTABLE */ |
| 430 | /* Will always be called with the cnvCacheMutex already being held */ |
| 431 | /* by the calling function. */ |
| 432 | /* Stores the shared data in the SHARED_DATA_HASHTABLE |
| 433 | * @param data The shared data |
| 434 | */ |
| 435 | static void |
| 436 | ucnv_shareConverterData(UConverterSharedData * data) |
| 437 | { |
| 438 | UErrorCode err = U_ZERO_ERROR; |
| 439 | /*Lazy evaluates the Hashtable itself */ |
| 440 | /*void *sanity = NULL;*/ |
| 441 | |
| 442 | if (SHARED_DATA_HASHTABLE == NULL__null) |
| 443 | { |
| 444 | SHARED_DATA_HASHTABLE = uhash_openSizeuhash_openSize_71(uhash_hashCharsuhash_hashChars_71, uhash_compareCharsuhash_compareChars_71, NULL__null, |
| 445 | ucnv_io_countKnownConvertersucnv_io_countKnownConverters_71(&err)*UCNV_CACHE_LOAD_FACTOR2, |
| 446 | &err); |
| 447 | ucnv_enableCleanupucnv_enableCleanup_71(); |
| 448 | |
| 449 | if (U_FAILURE(err)) |
| 450 | return; |
| 451 | } |
| 452 | |
| 453 | /* ### check to see if the element is not already there! */ |
| 454 | |
| 455 | /* |
| 456 | sanity = ucnv_getSharedConverterData (data->staticData->name); |
| 457 | if(sanity != NULL) |
| 458 | { |
| 459 | UCNV_DEBUG_LOG("put:overwrite!",data->staticData->name,sanity); |
| 460 | } |
| 461 | UCNV_DEBUG_LOG("put:chk",data->staticData->name,sanity); |
| 462 | */ |
| 463 | |
| 464 | /* Mark it shared */ |
| 465 | data->sharedDataCached = TRUE1; |
| 466 | |
| 467 | uhash_putuhash_put_71(SHARED_DATA_HASHTABLE, |
| 468 | (void*) data->staticData->name, /* Okay to cast away const as long as |
| 469 | keyDeleter == NULL */ |
| 470 | data, |
| 471 | &err); |
| 472 | UCNV_DEBUG_LOG("put", data->staticData->name,data); |
| 473 | |
| 474 | } |
| 475 | |
| 476 | /* Look up a converter name in the shared data cache. */ |
| 477 | /* cnvCacheMutex must be held by the caller to protect the hash table. */ |
| 478 | /* gets the shared data from the SHARED_DATA_HASHTABLE (might return NULL if it isn't there) |
| 479 | * @param name The name of the shared data |
| 480 | * @return the shared data from the SHARED_DATA_HASHTABLE |
| 481 | */ |
| 482 | static UConverterSharedData * |
| 483 | ucnv_getSharedConverterData(const char *name) |
| 484 | { |
| 485 | /*special case when no Table has yet been created we return NULL */ |
| 486 | if (SHARED_DATA_HASHTABLE == NULL__null) |
| 487 | { |
| 488 | return NULL__null; |
| 489 | } |
| 490 | else |
| 491 | { |
| 492 | UConverterSharedData *rc; |
| 493 | |
| 494 | rc = (UConverterSharedData*)uhash_getuhash_get_71(SHARED_DATA_HASHTABLE, name); |
| 495 | UCNV_DEBUG_LOG("get",name,rc); |
| 496 | return rc; |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | /*frees the string of memory blocks associates with a sharedConverter |
| 501 | *if and only if the referenceCounter == 0 |
| 502 | */ |
| 503 | /* Deletes (frees) the Shared data it's passed. first it checks the referenceCounter to |
| 504 | * see if anyone is using it, if not it frees all the memory stemming from sharedConverterData and |
| 505 | * returns TRUE, |
| 506 | * otherwise returns FALSE |
| 507 | * @param sharedConverterData The shared data |
| 508 | * @return if not it frees all the memory stemming from sharedConverterData and |
| 509 | * returns TRUE, otherwise returns FALSE |
| 510 | */ |
| 511 | static UBool |
| 512 | ucnv_deleteSharedConverterData(UConverterSharedData * deadSharedData) |
| 513 | { |
| 514 | UTRACE_ENTRY_OC(UTRACE_UCNV_UNLOAD); |
| 515 | UTRACE_DATA2(UTRACE_OPEN_CLOSE, "unload converter %s shared data %p", deadSharedData->staticData->name, deadSharedData); |
| 516 | |
| 517 | if (deadSharedData->referenceCounter > 0) { |
| 518 | UTRACE_EXIT_VALUE((int32_t)FALSE); |
| 519 | return FALSE0; |
| 520 | } |
| 521 | |
| 522 | if (deadSharedData->impl->unload != NULL__null) { |
| 523 | deadSharedData->impl->unload(deadSharedData); |
| 524 | } |
| 525 | |
| 526 | if(deadSharedData->dataMemory != NULL__null) |
| 527 | { |
| 528 | UDataMemory *data = (UDataMemory*)deadSharedData->dataMemory; |
| 529 | udata_closeudata_close_71(data); |
| 530 | } |
| 531 | |
| 532 | uprv_freeuprv_free_71(deadSharedData); |
| 533 | |
| 534 | UTRACE_EXIT_VALUE((int32_t)TRUE); |
| 535 | return TRUE1; |
| 536 | } |
| 537 | |
| 538 | /** |
| 539 | * Load a non-algorithmic converter. |
| 540 | * If pkg==NULL, then this function must be called inside umtx_lock(&cnvCacheMutex). |
| 541 | */ |
| 542 | UConverterSharedData * |
| 543 | ucnv_loaducnv_load_71(UConverterLoadArgs *pArgs, UErrorCode *err) { |
| 544 | UConverterSharedData *mySharedConverterData; |
| 545 | |
| 546 | if(err == NULL__null || U_FAILURE(*err)) { |
| 547 | return NULL__null; |
| 548 | } |
| 549 | |
| 550 | if(pArgs->pkg != NULL__null && *pArgs->pkg != 0) { |
| 551 | /* application-provided converters are not currently cached */ |
| 552 | return createConverterFromFile(pArgs, err); |
| 553 | } |
| 554 | |
| 555 | mySharedConverterData = ucnv_getSharedConverterData(pArgs->name); |
| 556 | if (mySharedConverterData == NULL__null) |
| 557 | { |
| 558 | /*Not cached, we need to stream it in from file */ |
| 559 | mySharedConverterData = createConverterFromFile(pArgs, err); |
| 560 | if (U_FAILURE (*err) || (mySharedConverterData == NULL__null)) |
| 561 | { |
| 562 | return NULL__null; |
| 563 | } |
| 564 | else if (!pArgs->onlyTestIsLoadable) |
| 565 | { |
| 566 | /* share it with other library clients */ |
| 567 | ucnv_shareConverterData(mySharedConverterData); |
| 568 | } |
| 569 | } |
| 570 | else |
| 571 | { |
| 572 | /* The data for this converter was already in the cache. */ |
| 573 | /* Update the reference counter on the shared data: one more client */ |
| 574 | mySharedConverterData->referenceCounter++; |
| 575 | } |
| 576 | |
| 577 | return mySharedConverterData; |
| 578 | } |
| 579 | |
| 580 | /** |
| 581 | * Unload a non-algorithmic converter. |
| 582 | * It must be sharedData->isReferenceCounted |
| 583 | * and this function must be called inside umtx_lock(&cnvCacheMutex). |
| 584 | */ |
| 585 | U_CAPIextern "C" void |
| 586 | ucnv_unloaducnv_unload_71(UConverterSharedData *sharedData) { |
| 587 | if(sharedData != NULL__null) { |
| 588 | if (sharedData->referenceCounter > 0) { |
| 589 | sharedData->referenceCounter--; |
| 590 | } |
| 591 | |
| 592 | if((sharedData->referenceCounter <= 0)&&(sharedData->sharedDataCached == FALSE0)) { |
| 593 | ucnv_deleteSharedConverterData(sharedData); |
| 594 | } |
| 595 | } |
| 596 | } |
| 597 | |
| 598 | U_CFUNCextern "C" void |
| 599 | ucnv_unloadSharedDataIfReadyucnv_unloadSharedDataIfReady_71(UConverterSharedData *sharedData) |
| 600 | { |
| 601 | if(sharedData != NULL__null && sharedData->isReferenceCounted) { |
| 602 | umtx_lockumtx_lock_71(&cnvCacheMutex); |
| 603 | ucnv_unloaducnv_unload_71(sharedData); |
| 604 | umtx_unlockumtx_unlock_71(&cnvCacheMutex); |
| 605 | } |
| 606 | } |
| 607 | |
| 608 | U_CFUNCextern "C" void |
| 609 | ucnv_incrementRefCountucnv_incrementRefCount_71(UConverterSharedData *sharedData) |
| 610 | { |
| 611 | if(sharedData != NULL__null && sharedData->isReferenceCounted) { |
| 612 | umtx_lockumtx_lock_71(&cnvCacheMutex); |
| 613 | sharedData->referenceCounter++; |
| 614 | umtx_unlockumtx_unlock_71(&cnvCacheMutex); |
| 615 | } |
| 616 | } |
| 617 | |
| 618 | /* |
| 619 | * *pPieces must be initialized. |
| 620 | * The name without options will be copied to pPieces->cnvName. |
| 621 | * The locale and options will be copied to pPieces only if present in inName, |
| 622 | * otherwise the existing values in pPieces remain. |
| 623 | * *pArgs will be set to the pPieces values. |
| 624 | */ |
| 625 | static void |
| 626 | parseConverterOptions(const char *inName, |
| 627 | UConverterNamePieces *pPieces, |
| 628 | UConverterLoadArgs *pArgs, |
| 629 | UErrorCode *err) |
| 630 | { |
| 631 | char *cnvName = pPieces->cnvName; |
| 632 | char c; |
| 633 | int32_t len = 0; |
| 634 | |
| 635 | pArgs->name=inName; |
| 636 | pArgs->locale=pPieces->locale; |
| 637 | pArgs->options=pPieces->options; |
| 638 | |
| 639 | /* copy the converter name itself to cnvName */ |
| 640 | while((c=*inName)!=0 && c!=UCNV_OPTION_SEP_CHAR',') { |
| 641 | if (++len>=UCNV_MAX_CONVERTER_NAME_LENGTH60) { |
| 642 | *err = U_ILLEGAL_ARGUMENT_ERROR; /* bad name */ |
| 643 | pPieces->cnvName[0]=0; |
| 644 | return; |
| 645 | } |
| 646 | *cnvName++=c; |
| 647 | inName++; |
| 648 | } |
| 649 | *cnvName=0; |
| 650 | pArgs->name=pPieces->cnvName; |
| 651 | |
| 652 | /* parse options. No more name copying should occur. */ |
| 653 | while((c=*inName)!=0) { |
| 654 | if(c==UCNV_OPTION_SEP_CHAR',') { |
| 655 | ++inName; |
| 656 | } |
| 657 | |
| 658 | /* inName is behind an option separator */ |
| 659 | if(uprv_strncmp(inName, "locale=", 7):: strncmp(inName, "locale=", 7)==0) { |
| 660 | /* do not modify locale itself in case we have multiple locale options */ |
| 661 | char *dest=pPieces->locale; |
| 662 | |
| 663 | /* copy the locale option value */ |
| 664 | inName+=7; |
| 665 | len=0; |
| 666 | while((c=*inName)!=0 && c!=UCNV_OPTION_SEP_CHAR',') { |
| 667 | ++inName; |
| 668 | |
| 669 | if(++len>=ULOC_FULLNAME_CAPACITY157) { |
| 670 | *err=U_ILLEGAL_ARGUMENT_ERROR; /* bad name */ |
| 671 | pPieces->locale[0]=0; |
| 672 | return; |
| 673 | } |
| 674 | |
| 675 | *dest++=c; |
| 676 | } |
| 677 | *dest=0; |
| 678 | } else if(uprv_strncmp(inName, "version=", 8):: strncmp(inName, "version=", 8)==0) { |
| 679 | /* copy the version option value into bits 3..0 of pPieces->options */ |
| 680 | inName+=8; |
| 681 | c=*inName; |
| 682 | if(c==0) { |
| 683 | pArgs->options=(pPieces->options&=~UCNV_OPTION_VERSION0xf); |
| 684 | return; |
| 685 | } else if((uint8_t)(c-'0')<10) { |
| 686 | pArgs->options=pPieces->options=(pPieces->options&~UCNV_OPTION_VERSION0xf)|(uint32_t)(c-'0'); |
| 687 | ++inName; |
| 688 | } |
| 689 | } else if(uprv_strncmp(inName, "swaplfnl", 8):: strncmp(inName, "swaplfnl", 8)==0) { |
| 690 | inName+=8; |
| 691 | pArgs->options=(pPieces->options|=UCNV_OPTION_SWAP_LFNL0x10); |
| 692 | /* add processing for new options here with another } else if(uprv_strncmp(inName, "option-name=", XX)==0) { */ |
| 693 | } else { |
| 694 | /* ignore any other options until we define some */ |
| 695 | while(((c = *inName++) != 0) && (c != UCNV_OPTION_SEP_CHAR',')) { |
| 696 | } |
| 697 | if(c==0) { |
| 698 | return; |
| 699 | } |
| 700 | } |
| 701 | } |
| 702 | } |
| 703 | |
| 704 | /*Logic determines if the converter is Algorithmic AND/OR cached |
| 705 | *depending on that: |
| 706 | * -we either go to get data from disk and cache it (Data=TRUE, Cached=False) |
| 707 | * -Get it from a Hashtable (Data=X, Cached=TRUE) |
| 708 | * -Call dataConverter initializer (Data=TRUE, Cached=TRUE) |
| 709 | * -Call AlgorithmicConverter initializer (Data=FALSE, Cached=TRUE) |
| 710 | */ |
| 711 | U_CFUNCextern "C" UConverterSharedData * |
| 712 | ucnv_loadSharedDataucnv_loadSharedData_71(const char *converterName, |
| 713 | UConverterNamePieces *pPieces, |
| 714 | UConverterLoadArgs *pArgs, |
| 715 | UErrorCode * err) { |
| 716 | UConverterNamePieces stackPieces; |
| 717 | UConverterLoadArgs stackArgs; |
| 718 | UConverterSharedData *mySharedConverterData = NULL__null; |
| 719 | UErrorCode internalErrorCode = U_ZERO_ERROR; |
| 720 | UBool mayContainOption = TRUE1; |
| 721 | UBool checkForAlgorithmic = TRUE1; |
| 722 | |
| 723 | if (U_FAILURE (*err)) { |
| 724 | return NULL__null; |
| 725 | } |
| 726 | |
| 727 | if(pPieces == NULL__null) { |
| 728 | if(pArgs != NULL__null) { |
| 729 | /* |
| 730 | * Bad: We may set pArgs pointers to stackPieces fields |
| 731 | * which will be invalid after this function returns. |
| 732 | */ |
| 733 | *err = U_INTERNAL_PROGRAM_ERROR; |
| 734 | return NULL__null; |
| 735 | } |
| 736 | pPieces = &stackPieces; |
| 737 | } |
| 738 | if(pArgs == NULL__null) { |
| 739 | uprv_memset(&stackArgs, 0, sizeof(stackArgs)):: memset(&stackArgs, 0, sizeof(stackArgs)); |
| 740 | stackArgs.size = (int32_t)sizeof(stackArgs); |
| 741 | pArgs = &stackArgs; |
| 742 | } |
| 743 | |
| 744 | pPieces->cnvName[0] = 0; |
| 745 | pPieces->locale[0] = 0; |
| 746 | pPieces->options = 0; |
| 747 | |
| 748 | pArgs->name = converterName; |
| 749 | pArgs->locale = pPieces->locale; |
| 750 | pArgs->options = pPieces->options; |
| 751 | |
| 752 | /* In case "name" is NULL we want to open the default converter. */ |
| 753 | if (converterName == NULL__null) { |
| 754 | #if U_CHARSET_IS_UTF81 |
| 755 | pArgs->name = "UTF-8"; |
| 756 | return (UConverterSharedData *)converterData[UCNV_UTF8]; |
| 757 | #else |
| 758 | /* Call ucnv_getDefaultName first to query the name from the OS. */ |
| 759 | pArgs->name = ucnv_getDefaultNameucnv_getDefaultName_71(); |
| 760 | if (pArgs->name == NULL__null) { |
| 761 | *err = U_MISSING_RESOURCE_ERROR; |
| 762 | return NULL__null; |
| 763 | } |
| 764 | mySharedConverterData = (UConverterSharedData *)gDefaultAlgorithmicSharedData; |
| 765 | checkForAlgorithmic = FALSE0; |
| 766 | mayContainOption = gDefaultConverterContainsOption; |
| 767 | /* the default converter name is already canonical */ |
| 768 | #endif |
| 769 | } |
| 770 | else if(UCNV_FAST_IS_UTF8(converterName)(((converterName[0]=='U' ? ( converterName[1]=='T' && converterName[2]=='F') : (converterName[0]=='u' && converterName [1]=='t' && converterName[2]=='f'))) && (converterName [3]=='-' ? (converterName[4]=='8' && converterName[5] ==0) : (converterName[3]=='8' && converterName[4]==0) ))) { |
| 771 | /* fastpath for UTF-8 */ |
| 772 | pArgs->name = "UTF-8"; |
| 773 | return (UConverterSharedData *)converterData[UCNV_UTF8]; |
| 774 | } |
| 775 | else { |
| 776 | /* separate the converter name from the options */ |
| 777 | parseConverterOptions(converterName, pPieces, pArgs, err); |
| 778 | if (U_FAILURE(*err)) { |
| 779 | /* Very bad name used. */ |
| 780 | return NULL__null; |
| 781 | } |
| 782 | |
| 783 | /* get the canonical converter name */ |
| 784 | pArgs->name = ucnv_io_getConverterNameucnv_io_getConverterName_71(pArgs->name, &mayContainOption, &internalErrorCode); |
| 785 | if (U_FAILURE(internalErrorCode) || pArgs->name == NULL__null) { |
| 786 | /* |
| 787 | * set the input name in case the converter was added |
| 788 | * without updating the alias table, or when there is no alias table |
| 789 | */ |
| 790 | pArgs->name = pPieces->cnvName; |
| 791 | } else if (internalErrorCode == U_AMBIGUOUS_ALIAS_WARNING) { |
| 792 | *err = U_AMBIGUOUS_ALIAS_WARNING; |
| 793 | } |
| 794 | } |
| 795 | |
| 796 | /* separate the converter name from the options */ |
| 797 | if(mayContainOption && pArgs->name != pPieces->cnvName) { |
| 798 | parseConverterOptions(pArgs->name, pPieces, pArgs, err); |
| 799 | } |
| 800 | |
| 801 | /* get the shared data for an algorithmic converter, if it is one */ |
| 802 | if (checkForAlgorithmic) { |
| 803 | mySharedConverterData = (UConverterSharedData *)getAlgorithmicTypeFromName(pArgs->name); |
| 804 | } |
| 805 | if (mySharedConverterData == NULL__null) |
| 806 | { |
| 807 | /* it is a data-based converter, get its shared data. */ |
| 808 | /* Hold the cnvCacheMutex through the whole process of checking the */ |
| 809 | /* converter data cache, and adding new entries to the cache */ |
| 810 | /* to prevent other threads from modifying the cache during the */ |
| 811 | /* process. */ |
| 812 | pArgs->nestedLoads=1; |
| 813 | pArgs->pkg=NULL__null; |
| 814 | |
| 815 | umtx_lockumtx_lock_71(&cnvCacheMutex); |
| 816 | mySharedConverterData = ucnv_loaducnv_load_71(pArgs, err); |
| 817 | umtx_unlockumtx_unlock_71(&cnvCacheMutex); |
| 818 | if (U_FAILURE (*err) || (mySharedConverterData == NULL__null)) |
| 819 | { |
| 820 | return NULL__null; |
| 821 | } |
| 822 | } |
| 823 | |
| 824 | return mySharedConverterData; |
| 825 | } |
| 826 | |
| 827 | U_CAPIextern "C" UConverter * |
| 828 | ucnv_createConverterucnv_createConverter_71(UConverter *myUConverter, const char *converterName, UErrorCode * err) |
| 829 | { |
| 830 | UConverterNamePieces stackPieces; |
| 831 | UConverterLoadArgs stackArgs=UCNV_LOAD_ARGS_INITIALIZER{ (int32_t)sizeof(UConverterLoadArgs), 0, false, false, 0, 0, __null, __null, __null }; |
| 832 | UConverterSharedData *mySharedConverterData; |
| 833 | |
| 834 | UTRACE_ENTRY_OC(UTRACE_UCNV_OPEN); |
| 835 | |
| 836 | if(U_SUCCESS(*err)) { |
| 837 | UTRACE_DATA1(UTRACE_OPEN_CLOSE, "open converter %s", converterName); |
| 838 | |
| 839 | mySharedConverterData = ucnv_loadSharedDataucnv_loadSharedData_71(converterName, &stackPieces, &stackArgs, err); |
| 840 | |
| 841 | myUConverter = ucnv_createConverterFromSharedDataucnv_createConverterFromSharedData_71( |
| 842 | myUConverter, mySharedConverterData, |
| 843 | &stackArgs, |
| 844 | err); |
| 845 | |
| 846 | if(U_SUCCESS(*err)) { |
| 847 | UTRACE_EXIT_PTR_STATUS(myUConverter, *err); |
| 848 | return myUConverter; |
| 849 | } |
| 850 | } |
| 851 | |
| 852 | /* exit with error */ |
| 853 | UTRACE_EXIT_STATUS(*err); |
| 854 | return NULL__null; |
| 855 | } |
| 856 | |
| 857 | U_CFUNCextern "C" UBool |
| 858 | ucnv_canCreateConverterucnv_canCreateConverter_71(const char *converterName, UErrorCode *err) { |
| 859 | UConverter myUConverter; |
| 860 | UConverterNamePieces stackPieces; |
| 861 | UConverterLoadArgs stackArgs=UCNV_LOAD_ARGS_INITIALIZER{ (int32_t)sizeof(UConverterLoadArgs), 0, false, false, 0, 0, __null, __null, __null }; |
| 862 | UConverterSharedData *mySharedConverterData; |
| 863 | |
| 864 | UTRACE_ENTRY_OC(UTRACE_UCNV_OPEN); |
| 865 | |
| 866 | if(U_SUCCESS(*err)) { |
| 867 | UTRACE_DATA1(UTRACE_OPEN_CLOSE, "test if can open converter %s", converterName); |
| 868 | |
| 869 | stackArgs.onlyTestIsLoadable=TRUE1; |
| 870 | mySharedConverterData = ucnv_loadSharedDataucnv_loadSharedData_71(converterName, &stackPieces, &stackArgs, err); |
| 871 | ucnv_createConverterFromSharedDataucnv_createConverterFromSharedData_71( |
| 872 | &myUConverter, mySharedConverterData, |
| 873 | &stackArgs, |
| 874 | err); |
| 875 | ucnv_unloadSharedDataIfReadyucnv_unloadSharedDataIfReady_71(mySharedConverterData); |
| 876 | } |
| 877 | |
| 878 | UTRACE_EXIT_STATUS(*err); |
| 879 | return U_SUCCESS(*err); |
| 880 | } |
| 881 | |
| 882 | UConverter * |
| 883 | ucnv_createAlgorithmicConverterucnv_createAlgorithmicConverter_71(UConverter *myUConverter, |
| 884 | UConverterType type, |
| 885 | const char *locale, uint32_t options, |
| 886 | UErrorCode *err) { |
| 887 | UConverter *cnv; |
| 888 | const UConverterSharedData *sharedData; |
| 889 | UConverterLoadArgs stackArgs=UCNV_LOAD_ARGS_INITIALIZER{ (int32_t)sizeof(UConverterLoadArgs), 0, false, false, 0, 0, __null, __null, __null }; |
| 890 | |
| 891 | UTRACE_ENTRY_OC(UTRACE_UCNV_OPEN_ALGORITHMIC); |
| 892 | UTRACE_DATA1(UTRACE_OPEN_CLOSE, "open algorithmic converter type %d", (int32_t)type); |
| 893 | |
| 894 | if(type<0 || UCNV_NUMBER_OF_SUPPORTED_CONVERTER_TYPES<=type) { |
| 895 | *err = U_ILLEGAL_ARGUMENT_ERROR; |
| 896 | UTRACE_EXIT_STATUS(U_ILLEGAL_ARGUMENT_ERROR); |
| 897 | return NULL__null; |
| 898 | } |
| 899 | |
| 900 | sharedData = converterData[type]; |
| 901 | if(sharedData == NULL__null || sharedData->isReferenceCounted) { |
| 902 | /* not a valid type, or not an algorithmic converter */ |
| 903 | *err = U_ILLEGAL_ARGUMENT_ERROR; |
| 904 | UTRACE_EXIT_STATUS(U_ILLEGAL_ARGUMENT_ERROR); |
| 905 | return NULL__null; |
| 906 | } |
| 907 | |
| 908 | stackArgs.name = ""; |
| 909 | stackArgs.options = options; |
| 910 | stackArgs.locale=locale; |
| 911 | cnv = ucnv_createConverterFromSharedDataucnv_createConverterFromSharedData_71( |
| 912 | myUConverter, (UConverterSharedData *)sharedData, |
| 913 | &stackArgs, err); |
| 914 | |
| 915 | UTRACE_EXIT_PTR_STATUS(cnv, *err); |
| 916 | return cnv; |
| 917 | } |
| 918 | |
| 919 | U_CFUNCextern "C" UConverter* |
| 920 | ucnv_createConverterFromPackageucnv_createConverterFromPackage_71(const char *packageName, const char *converterName, UErrorCode * err) |
| 921 | { |
| 922 | UConverter *myUConverter; |
| 923 | UConverterSharedData *mySharedConverterData; |
| 924 | UConverterNamePieces stackPieces; |
| 925 | UConverterLoadArgs stackArgs=UCNV_LOAD_ARGS_INITIALIZER{ (int32_t)sizeof(UConverterLoadArgs), 0, false, false, 0, 0, __null, __null, __null }; |
| 926 | |
| 927 | UTRACE_ENTRY_OC(UTRACE_UCNV_OPEN_PACKAGE); |
| 928 | |
| 929 | if(U_FAILURE(*err)) { |
| 930 | UTRACE_EXIT_STATUS(*err); |
| 931 | return NULL__null; |
| 932 | } |
| 933 | |
| 934 | UTRACE_DATA2(UTRACE_OPEN_CLOSE, "open converter %s from package %s", converterName, packageName); |
| 935 | |
| 936 | /* first, get the options out of the converterName string */ |
| 937 | stackPieces.cnvName[0] = 0; |
| 938 | stackPieces.locale[0] = 0; |
| 939 | stackPieces.options = 0; |
| 940 | parseConverterOptions(converterName, &stackPieces, &stackArgs, err); |
| 941 | if (U_FAILURE(*err)) { |
| 942 | /* Very bad name used. */ |
| 943 | UTRACE_EXIT_STATUS(*err); |
| 944 | return NULL__null; |
| 945 | } |
| 946 | stackArgs.nestedLoads=1; |
| 947 | stackArgs.pkg=packageName; |
| 948 | |
| 949 | /* open the data, unflatten the shared structure */ |
| 950 | mySharedConverterData = createConverterFromFile(&stackArgs, err); |
| 951 | |
| 952 | if (U_FAILURE(*err)) { |
| 953 | UTRACE_EXIT_STATUS(*err); |
| 954 | return NULL__null; |
| 955 | } |
| 956 | |
| 957 | /* create the actual converter */ |
| 958 | myUConverter = ucnv_createConverterFromSharedDataucnv_createConverterFromSharedData_71(NULL__null, mySharedConverterData, &stackArgs, err); |
| 959 | |
| 960 | if (U_FAILURE(*err)) { |
| 961 | ucnv_closeucnv_close_71(myUConverter); |
| 962 | UTRACE_EXIT_STATUS(*err); |
| 963 | return NULL__null; |
| 964 | } |
| 965 | |
| 966 | UTRACE_EXIT_PTR_STATUS(myUConverter, *err); |
| 967 | return myUConverter; |
| 968 | } |
| 969 | |
| 970 | |
| 971 | U_CFUNCextern "C" UConverter* |
| 972 | ucnv_createConverterFromSharedDataucnv_createConverterFromSharedData_71(UConverter *myUConverter, |
| 973 | UConverterSharedData *mySharedConverterData, |
| 974 | UConverterLoadArgs *pArgs, |
| 975 | UErrorCode *err) |
| 976 | { |
| 977 | UBool isCopyLocal; |
| 978 | |
| 979 | if(U_FAILURE(*err)) { |
| 980 | ucnv_unloadSharedDataIfReadyucnv_unloadSharedDataIfReady_71(mySharedConverterData); |
| 981 | return myUConverter; |
| 982 | } |
| 983 | if(myUConverter == NULL__null) |
| 984 | { |
| 985 | myUConverter = (UConverter *) uprv_mallocuprv_malloc_71 (sizeof (UConverter)); |
| 986 | if(myUConverter == NULL__null) |
| 987 | { |
| 988 | *err = U_MEMORY_ALLOCATION_ERROR; |
| 989 | ucnv_unloadSharedDataIfReadyucnv_unloadSharedDataIfReady_71(mySharedConverterData); |
| 990 | return NULL__null; |
| 991 | } |
| 992 | isCopyLocal = FALSE0; |
| 993 | } else { |
| 994 | isCopyLocal = TRUE1; |
| 995 | } |
| 996 | |
| 997 | /* initialize the converter */ |
| 998 | uprv_memset(myUConverter, 0, sizeof(UConverter)):: memset(myUConverter, 0, sizeof(UConverter)); |
| 999 | myUConverter->isCopyLocal = isCopyLocal; |
| 1000 | /*myUConverter->isExtraLocal = FALSE;*/ /* Set by the memset call */ |
| 1001 | myUConverter->sharedData = mySharedConverterData; |
| 1002 | myUConverter->options = pArgs->options; |
| 1003 | if(!pArgs->onlyTestIsLoadable) { |
| 1004 | myUConverter->preFromUFirstCP = U_SENTINEL(-1); |
| 1005 | myUConverter->fromCharErrorBehaviour = UCNV_TO_U_DEFAULT_CALLBACK((UConverterToUCallback) UCNV_TO_U_CALLBACK_SUBSTITUTE_71); |
| 1006 | myUConverter->fromUCharErrorBehaviour = UCNV_FROM_U_DEFAULT_CALLBACK((UConverterFromUCallback) UCNV_FROM_U_CALLBACK_SUBSTITUTE_71 ); |
| 1007 | myUConverter->toUnicodeStatus = mySharedConverterData->toUnicodeStatus; |
| 1008 | myUConverter->maxBytesPerUChar = mySharedConverterData->staticData->maxBytesPerChar; |
| 1009 | myUConverter->subChar1 = mySharedConverterData->staticData->subChar1; |
| 1010 | myUConverter->subCharLen = mySharedConverterData->staticData->subCharLen; |
| 1011 | myUConverter->subChars = (uint8_t *)myUConverter->subUChars; |
| 1012 | uprv_memcpy(myUConverter->subChars, mySharedConverterData->staticData->subChar, myUConverter->subCharLen)do { clang diagnostic push
clang diagnostic ignored "-Waddress" (void)0; (void)0; clang diagnostic pop :: memcpy(myUConverter ->subChars, mySharedConverterData->staticData->subChar , myUConverter->subCharLen); } while (false); |
| 1013 | myUConverter->toUCallbackReason = UCNV_ILLEGAL; /* default reason to invoke (*fromCharErrorBehaviour) */ |
| 1014 | } |
| 1015 | |
| 1016 | if(mySharedConverterData->impl->open != NULL__null) { |
| 1017 | mySharedConverterData->impl->open(myUConverter, pArgs, err); |
| 1018 | if(U_FAILURE(*err) && !pArgs->onlyTestIsLoadable) { |
| 1019 | /* don't ucnv_close() if onlyTestIsLoadable because not fully initialized */ |
| 1020 | ucnv_closeucnv_close_71(myUConverter); |
| 1021 | return NULL__null; |
| 1022 | } |
| 1023 | } |
| 1024 | |
| 1025 | return myUConverter; |
| 1026 | } |
| 1027 | |
| 1028 | /*Frees all shared immutable objects that aren't referred to (reference count = 0) |
| 1029 | */ |
| 1030 | U_CAPIextern "C" int32_t U_EXPORT2 |
| 1031 | ucnv_flushCacheucnv_flushCache_71 () |
| 1032 | { |
| 1033 | UConverterSharedData *mySharedData = NULL__null; |
| 1034 | int32_t pos; |
| 1035 | int32_t tableDeletedNum = 0; |
| 1036 | const UHashElement *e; |
| 1037 | /*UErrorCode status = U_ILLEGAL_ARGUMENT_ERROR;*/ |
| 1038 | int32_t i, remaining; |
| 1039 | |
| 1040 | UTRACE_ENTRY_OC(UTRACE_UCNV_FLUSH_CACHE); |
| 1041 | |
| 1042 | /* Close the default converter without creating a new one so that everything will be flushed. */ |
| 1043 | u_flushDefaultConverteru_flushDefaultConverter_71(); |
| 1044 | |
| 1045 | /*if shared data hasn't even been lazy evaluated yet |
| 1046 | * return 0 |
| 1047 | */ |
| 1048 | if (SHARED_DATA_HASHTABLE == NULL__null) { |
| 1049 | UTRACE_EXIT_VALUE((int32_t)0); |
| 1050 | return 0; |
| 1051 | } |
| 1052 | |
| 1053 | /*creates an enumeration to iterate through every element in the |
| 1054 | * table |
| 1055 | * |
| 1056 | * Synchronization: holding cnvCacheMutex will prevent any other thread from |
| 1057 | * accessing or modifying the hash table during the iteration. |
| 1058 | * The reference count of an entry may be decremented by |
| 1059 | * ucnv_close while the iteration is in process, but this is |
| 1060 | * benign. It can't be incremented (in ucnv_createConverter()) |
| 1061 | * because the sequence of looking up in the cache + incrementing |
| 1062 | * is protected by cnvCacheMutex. |
| 1063 | */ |
| 1064 | umtx_lockumtx_lock_71(&cnvCacheMutex); |
| 1065 | /* |
| 1066 | * double loop: A delta/extension-only converter has a pointer to its base table's |
| 1067 | * shared data; the first iteration of the outer loop may see the delta converter |
| 1068 | * before the base converter, and unloading the delta converter may get the base |
| 1069 | * converter's reference counter down to 0. |
| 1070 | */ |
| 1071 | i = 0; |
| 1072 | do { |
| 1073 | remaining = 0; |
| 1074 | pos = UHASH_FIRST(-1); |
| 1075 | while ((e = uhash_nextElementuhash_nextElement_71 (SHARED_DATA_HASHTABLE, &pos)) != NULL__null) |
| 1076 | { |
| 1077 | mySharedData = (UConverterSharedData *) e->value.pointer; |
| 1078 | /*deletes only if reference counter == 0 */ |
| 1079 | if (mySharedData->referenceCounter == 0) |
| 1080 | { |
| 1081 | tableDeletedNum++; |
| 1082 | |
| 1083 | UCNV_DEBUG_LOG("del",mySharedData->staticData->name,mySharedData); |
| 1084 | |
| 1085 | uhash_removeElementuhash_removeElement_71(SHARED_DATA_HASHTABLE, e); |
| 1086 | mySharedData->sharedDataCached = FALSE0; |
| 1087 | ucnv_deleteSharedConverterData (mySharedData); |
| 1088 | } else { |
| 1089 | ++remaining; |
| 1090 | } |
| 1091 | } |
| 1092 | } while(++i == 1 && remaining > 0); |
| 1093 | umtx_unlockumtx_unlock_71(&cnvCacheMutex); |
| 1094 | |
| 1095 | UTRACE_DATA1(UTRACE_INFO, "ucnv_flushCache() exits with %d converters remaining", remaining); |
| 1096 | |
| 1097 | UTRACE_EXIT_VALUE(tableDeletedNum); |
| 1098 | return tableDeletedNum; |
| 1099 | } |
| 1100 | |
| 1101 | /* available converters list --------------------------------------------------- */ |
| 1102 | |
| 1103 | static void U_CALLCONV initAvailableConvertersList(UErrorCode &errCode) { |
| 1104 | U_ASSERT(gAvailableConverterCount == 0)(void)0; |
| 1105 | U_ASSERT(gAvailableConverters == NULL)(void)0; |
| 1106 | |
| 1107 | ucnv_enableCleanupucnv_enableCleanup_71(); |
| 1108 | UEnumeration *allConvEnum = ucnv_openAllNamesucnv_openAllNames_71(&errCode); |
| 1109 | int32_t allConverterCount = uenum_countuenum_count_71(allConvEnum, &errCode); |
| 1110 | if (U_FAILURE(errCode)) { |
| 1111 | return; |
| 1112 | } |
| 1113 | |
| 1114 | /* We can't have more than "*converterTable" converters to open */ |
| 1115 | gAvailableConverters = (const char **) uprv_mallocuprv_malloc_71(allConverterCount * sizeof(char*)); |
| 1116 | if (!gAvailableConverters) { |
| 1117 | errCode = U_MEMORY_ALLOCATION_ERROR; |
| 1118 | return; |
| 1119 | } |
| 1120 | |
| 1121 | /* Open the default converter to make sure that it has first dibs in the hash table. */ |
| 1122 | UErrorCode localStatus = U_ZERO_ERROR; |
| 1123 | UConverter tempConverter; |
| 1124 | ucnv_closeucnv_close_71(ucnv_createConverterucnv_createConverter_71(&tempConverter, NULL__null, &localStatus)); |
| 1125 | |
| 1126 | gAvailableConverterCount = 0; |
| 1127 | |
| 1128 | for (int32_t idx = 0; idx < allConverterCount; idx++) { |
| 1129 | localStatus = U_ZERO_ERROR; |
| 1130 | const char *converterName = uenum_nextuenum_next_71(allConvEnum, NULL__null, &localStatus); |
| 1131 | if (ucnv_canCreateConverterucnv_canCreateConverter_71(converterName, &localStatus)) { |
| 1132 | gAvailableConverters[gAvailableConverterCount++] = converterName; |
| 1133 | } |
| 1134 | } |
| 1135 | |
| 1136 | uenum_closeuenum_close_71(allConvEnum); |
| 1137 | } |
| 1138 | |
| 1139 | |
| 1140 | static UBool haveAvailableConverterList(UErrorCode *pErrorCode) { |
| 1141 | umtx_initOnce(gAvailableConvertersInitOnce, &initAvailableConvertersList, *pErrorCode); |
| 1142 | return U_SUCCESS(*pErrorCode); |
| 1143 | } |
| 1144 | |
| 1145 | U_CFUNCextern "C" uint16_t |
| 1146 | ucnv_bld_countAvailableConvertersucnv_bld_countAvailableConverters_71(UErrorCode *pErrorCode) { |
| 1147 | if (haveAvailableConverterList(pErrorCode)) { |
| 1148 | return gAvailableConverterCount; |
| 1149 | } |
| 1150 | return 0; |
| 1151 | } |
| 1152 | |
| 1153 | U_CFUNCextern "C" const char * |
| 1154 | ucnv_bld_getAvailableConverterucnv_bld_getAvailableConverter_71(uint16_t n, UErrorCode *pErrorCode) { |
| 1155 | if (haveAvailableConverterList(pErrorCode)) { |
| 1156 | if (n < gAvailableConverterCount) { |
| 1157 | return gAvailableConverters[n]; |
| 1158 | } |
| 1159 | *pErrorCode = U_INDEX_OUTOFBOUNDS_ERROR; |
| 1160 | } |
| 1161 | return NULL__null; |
| 1162 | } |
| 1163 | |
| 1164 | /* default converter name --------------------------------------------------- */ |
| 1165 | |
| 1166 | #if !U_CHARSET_IS_UTF81 |
| 1167 | /* |
| 1168 | Copy the canonical converter name. |
| 1169 | ucnv_getDefaultName must be thread safe, which can call this function. |
| 1170 | |
| 1171 | ucnv_setDefaultName calls this function and it doesn't have to be |
| 1172 | thread safe because there is no reliable/safe way to reset the |
| 1173 | converter in use in all threads. If you did reset the converter, you |
| 1174 | would not be sure that retrieving a default converter for one string |
| 1175 | would be the same type of default converter for a successive string. |
| 1176 | Since the name is a returned via ucnv_getDefaultName without copying, |
| 1177 | you shouldn't be modifying or deleting the string from a separate thread. |
| 1178 | */ |
| 1179 | static inline void |
| 1180 | internalSetName(const char *name, UErrorCode *status) { |
| 1181 | UConverterNamePieces stackPieces; |
| 1182 | UConverterLoadArgs stackArgs=UCNV_LOAD_ARGS_INITIALIZER{ (int32_t)sizeof(UConverterLoadArgs), 0, false, false, 0, 0, __null, __null, __null }; |
| 1183 | int32_t length=(int32_t)(uprv_strlen(name):: strlen(name)); |
| 1184 | UBool containsOption = (UBool)(uprv_strchr(name, UCNV_OPTION_SEP_CHAR):: strchr(name, ',') != NULL__null); |
| 1185 | const UConverterSharedData *algorithmicSharedData; |
| 1186 | |
| 1187 | stackArgs.name = name; |
| 1188 | if(containsOption) { |
| 1189 | stackPieces.cnvName[0] = 0; |
| 1190 | stackPieces.locale[0] = 0; |
| 1191 | stackPieces.options = 0; |
| 1192 | parseConverterOptions(name, &stackPieces, &stackArgs, status); |
| 1193 | if(U_FAILURE(*status)) { |
| 1194 | return; |
| 1195 | } |
| 1196 | } |
| 1197 | algorithmicSharedData = getAlgorithmicTypeFromName(stackArgs.name); |
| 1198 | |
| 1199 | umtx_lockumtx_lock_71(&cnvCacheMutex); |
| 1200 | |
| 1201 | gDefaultAlgorithmicSharedData = algorithmicSharedData; |
| 1202 | gDefaultConverterContainsOption = containsOption; |
| 1203 | uprv_memcpy(gDefaultConverterNameBuffer, name, length)do { clang diagnostic push
clang diagnostic ignored "-Waddress" (void)0; (void)0; clang diagnostic pop :: memcpy(gDefaultConverterNameBuffer , name, length); } while (false); |
| 1204 | gDefaultConverterNameBuffer[length]=0; |
| 1205 | |
| 1206 | /* gDefaultConverterName MUST be the last global var set by this function. */ |
| 1207 | /* It is the variable checked in ucnv_getDefaultName() to see if initialization is required. */ |
| 1208 | // But there is nothing here preventing that from being reordered, either by the compiler |
| 1209 | // or hardware. I'm adding the mutex to ucnv_getDefaultName for now. UMTX_CHECK is not enough. |
| 1210 | // -- Andy |
| 1211 | gDefaultConverterName = gDefaultConverterNameBuffer; |
| 1212 | |
| 1213 | ucnv_enableCleanupucnv_enableCleanup_71(); |
| 1214 | |
| 1215 | umtx_unlockumtx_unlock_71(&cnvCacheMutex); |
| 1216 | } |
| 1217 | #endif |
| 1218 | |
| 1219 | /* |
| 1220 | * In order to be really thread-safe, the get function would have to take |
| 1221 | * a buffer parameter and copy the current string inside a mutex block. |
| 1222 | * This implementation only tries to be really thread-safe while |
| 1223 | * setting the name. |
| 1224 | * It assumes that setting a pointer is atomic. |
| 1225 | */ |
| 1226 | |
| 1227 | U_CAPIextern "C" const char* U_EXPORT2 |
| 1228 | ucnv_getDefaultNameucnv_getDefaultName_71() { |
| 1229 | #if U_CHARSET_IS_UTF81 |
| 1230 | return "UTF-8"; |
| 1231 | #else |
| 1232 | /* local variable to be thread-safe */ |
| 1233 | const char *name; |
| 1234 | |
| 1235 | /* |
| 1236 | Concurrent calls to ucnv_getDefaultName must be thread safe, |
| 1237 | but ucnv_setDefaultName is not thread safe. |
| 1238 | */ |
| 1239 | { |
| 1240 | icu::Mutex lock(&cnvCacheMutex); |
| 1241 | name = gDefaultConverterName; |
| 1242 | } |
| 1243 | if(name==NULL__null) { |
| 1244 | UErrorCode errorCode = U_ZERO_ERROR; |
| 1245 | UConverter *cnv = NULL__null; |
| 1246 | |
| 1247 | name = uprv_getDefaultCodepage(); |
| 1248 | |
| 1249 | /* if the name is there, test it out and get the canonical name with options */ |
| 1250 | if(name != NULL__null) { |
| 1251 | cnv = ucnv_openucnv_open_71(name, &errorCode); |
| 1252 | if(U_SUCCESS(errorCode) && cnv != NULL__null) { |
| 1253 | name = ucnv_getNameucnv_getName_71(cnv, &errorCode); |
| 1254 | } |
| 1255 | } |
| 1256 | |
| 1257 | if(name == NULL__null || name[0] == 0 |
| 1258 | || U_FAILURE(errorCode) || cnv == NULL__null |
| 1259 | || uprv_strlen(name):: strlen(name)>=sizeof(gDefaultConverterNameBuffer)) |
| 1260 | { |
| 1261 | /* Panic time, let's use a fallback. */ |
| 1262 | #if (U_CHARSET_FAMILY0 == U_ASCII_FAMILY0) |
| 1263 | name = "US-ASCII"; |
| 1264 | /* there is no 'algorithmic' converter for EBCDIC */ |
| 1265 | #elif U_PLATFORM4000 == U_PF_OS3909000 |
| 1266 | name = "ibm-1047_P100-1995" UCNV_SWAP_LFNL_OPTION_STRING",swaplfnl"; |
| 1267 | #else |
| 1268 | name = "ibm-37_P100-1995"; |
| 1269 | #endif |
| 1270 | } |
| 1271 | |
| 1272 | internalSetName(name, &errorCode); |
| 1273 | |
| 1274 | /* The close may make the current name go away. */ |
| 1275 | ucnv_closeucnv_close_71(cnv); |
| 1276 | } |
| 1277 | |
| 1278 | return name; |
| 1279 | #endif |
| 1280 | } |
| 1281 | |
| 1282 | #if U_CHARSET_IS_UTF81 |
| 1283 | U_CAPIextern "C" void U_EXPORT2 ucnv_setDefaultNameucnv_setDefaultName_71(const char *) {} |
| 1284 | #else |
| 1285 | /* |
| 1286 | This function is not thread safe, and it can't be thread safe. |
| 1287 | See internalSetName or the API reference for details. |
| 1288 | */ |
| 1289 | U_CAPIextern "C" void U_EXPORT2 |
| 1290 | ucnv_setDefaultNameucnv_setDefaultName_71(const char *converterName) { |
| 1291 | if(converterName==NULL__null) { |
| 1292 | /* reset to the default codepage */ |
| 1293 | gDefaultConverterName=NULL__null; |
| 1294 | } else { |
| 1295 | UErrorCode errorCode = U_ZERO_ERROR; |
| 1296 | UConverter *cnv = NULL__null; |
| 1297 | const char *name = NULL__null; |
| 1298 | |
| 1299 | /* if the name is there, test it out and get the canonical name with options */ |
| 1300 | cnv = ucnv_openucnv_open_71(converterName, &errorCode); |
| 1301 | if(U_SUCCESS(errorCode) && cnv != NULL__null) { |
| 1302 | name = ucnv_getNameucnv_getName_71(cnv, &errorCode); |
| 1303 | } |
| 1304 | |
| 1305 | if(U_SUCCESS(errorCode) && name!=NULL__null) { |
| 1306 | internalSetName(name, &errorCode); |
| 1307 | } |
| 1308 | /* else this converter is bad to use. Don't change it to a bad value. */ |
| 1309 | |
| 1310 | /* The close may make the current name go away. */ |
| 1311 | ucnv_closeucnv_close_71(cnv); |
| 1312 | |
| 1313 | /* reset the converter cache */ |
| 1314 | u_flushDefaultConverteru_flushDefaultConverter_71(); |
| 1315 | } |
| 1316 | } |
| 1317 | #endif |
| 1318 | |
| 1319 | /* data swapping ------------------------------------------------------------ */ |
| 1320 | |
| 1321 | /* most of this might belong more properly into ucnvmbcs.c, but that is so large */ |
| 1322 | |
| 1323 | #if !UCONFIG_NO_LEGACY_CONVERSION0 |
| 1324 | |
| 1325 | U_CAPIextern "C" int32_t U_EXPORT2 |
| 1326 | ucnv_swapucnv_swap_71(const UDataSwapper *ds, |
| 1327 | const void *inData, int32_t length, void *outData, |
| 1328 | UErrorCode *pErrorCode) { |
| 1329 | const UDataInfo *pInfo; |
| 1330 | int32_t headerSize; |
| 1331 | |
| 1332 | const uint8_t *inBytes; |
| 1333 | uint8_t *outBytes; |
| 1334 | |
| 1335 | uint32_t offset, count, staticDataSize; |
| 1336 | int32_t size; |
| 1337 | |
| 1338 | const UConverterStaticData *inStaticData; |
| 1339 | UConverterStaticData *outStaticData; |
| 1340 | |
| 1341 | const _MBCSHeader *inMBCSHeader; |
| 1342 | _MBCSHeader *outMBCSHeader; |
| 1343 | _MBCSHeader mbcsHeader; |
| 1344 | uint32_t mbcsHeaderLength; |
| 1345 | UBool noFromU=FALSE0; |
| 1346 | |
| 1347 | uint8_t outputType; |
| 1348 | |
| 1349 | int32_t maxFastUChar, mbcsIndexLength; |
| 1350 | |
| 1351 | const int32_t *inExtIndexes; |
| 1352 | int32_t extOffset; |
| 1353 | |
| 1354 | /* udata_swapDataHeader checks the arguments */ |
| 1355 | headerSize=udata_swapDataHeaderudata_swapDataHeader_71(ds, inData, length, outData, pErrorCode); |
| 1356 | if(pErrorCode==NULL__null || U_FAILURE(*pErrorCode)) { |
| 1357 | return 0; |
| 1358 | } |
| 1359 | |
| 1360 | /* check data format and format version */ |
| 1361 | pInfo=(const UDataInfo *)((const char *)inData+4); |
| 1362 | if(!( |
| 1363 | pInfo->dataFormat[0]==0x63 && /* dataFormat="cnvt" */ |
| 1364 | pInfo->dataFormat[1]==0x6e && |
| 1365 | pInfo->dataFormat[2]==0x76 && |
| 1366 | pInfo->dataFormat[3]==0x74 && |
| 1367 | pInfo->formatVersion[0]==6 && |
| 1368 | pInfo->formatVersion[1]>=2 |
| 1369 | )) { |
| 1370 | udata_printErrorudata_printError_71(ds, "ucnv_swap(): data format %02x.%02x.%02x.%02x (format version %02x.%02x) is not recognized as an ICU .cnv conversion table\n", |
| 1371 | pInfo->dataFormat[0], pInfo->dataFormat[1], |
| 1372 | pInfo->dataFormat[2], pInfo->dataFormat[3], |
| 1373 | pInfo->formatVersion[0], pInfo->formatVersion[1]); |
| 1374 | *pErrorCode=U_UNSUPPORTED_ERROR; |
| 1375 | return 0; |
| 1376 | } |
| 1377 | |
| 1378 | inBytes=(const uint8_t *)inData+headerSize; |
| 1379 | outBytes=(uint8_t *)outData+headerSize; |
| 1380 | |
| 1381 | /* read the initial UConverterStaticData structure after the UDataInfo header */ |
| 1382 | inStaticData=(const UConverterStaticData *)inBytes; |
| 1383 | outStaticData=(UConverterStaticData *)outBytes; |
| 1384 | |
| 1385 | if(length<0) { |
| 1386 | staticDataSize=ds->readUInt32(inStaticData->structSize); |
| 1387 | } else { |
| 1388 | length-=headerSize; |
| 1389 | if( length<(int32_t)sizeof(UConverterStaticData) || |
| 1390 | (uint32_t)length<(staticDataSize=ds->readUInt32(inStaticData->structSize)) |
| 1391 | ) { |
| 1392 | udata_printErrorudata_printError_71(ds, "ucnv_swap(): too few bytes (%d after header) for an ICU .cnv conversion table\n", |
| 1393 | length); |
| 1394 | *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
| 1395 | return 0; |
| 1396 | } |
| 1397 | } |
| 1398 | |
| 1399 | if(length>=0) { |
| 1400 | /* swap the static data */ |
| 1401 | if(inStaticData!=outStaticData) { |
| 1402 | uprv_memcpy(outStaticData, inStaticData, staticDataSize)do { clang diagnostic push
clang diagnostic ignored "-Waddress" (void)0; (void)0; clang diagnostic pop :: memcpy(outStaticData , inStaticData, staticDataSize); } while (false); |
| 1403 | } |
| 1404 | |
| 1405 | ds->swapArray32(ds, &inStaticData->structSize, 4, |
| 1406 | &outStaticData->structSize, pErrorCode); |
| 1407 | ds->swapArray32(ds, &inStaticData->codepage, 4, |
| 1408 | &outStaticData->codepage, pErrorCode); |
| 1409 | |
| 1410 | ds->swapInvChars(ds, inStaticData->name, (int32_t)uprv_strlen(inStaticData->name):: strlen(inStaticData->name), |
| 1411 | outStaticData->name, pErrorCode); |
| 1412 | if(U_FAILURE(*pErrorCode)) { |
| 1413 | udata_printErrorudata_printError_71(ds, "ucnv_swap(): error swapping converter name\n"); |
| 1414 | return 0; |
| 1415 | } |
| 1416 | } |
| 1417 | |
| 1418 | inBytes+=staticDataSize; |
| 1419 | outBytes+=staticDataSize; |
| 1420 | if(length>=0) { |
| 1421 | length-=(int32_t)staticDataSize; |
| 1422 | } |
| 1423 | |
| 1424 | /* check for supported conversionType values */ |
| 1425 | if(inStaticData->conversionType==UCNV_MBCS) { |
| 1426 | /* swap MBCS data */ |
| 1427 | inMBCSHeader=(const _MBCSHeader *)inBytes; |
| 1428 | outMBCSHeader=(_MBCSHeader *)outBytes; |
| 1429 | |
| 1430 | if(0<=length && length<(int32_t)sizeof(_MBCSHeader)) { |
| 1431 | udata_printErrorudata_printError_71(ds, "ucnv_swap(): too few bytes (%d after headers) for an ICU MBCS .cnv conversion table\n", |
| 1432 | length); |
| 1433 | *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
| 1434 | return 0; |
| 1435 | } |
| 1436 | if(inMBCSHeader->version[0]==4 && inMBCSHeader->version[1]>=1) { |
| 1437 | mbcsHeaderLength=MBCS_HEADER_V4_LENGTH; |
| 1438 | } else if(inMBCSHeader->version[0]==5 && inMBCSHeader->version[1]>=3 && |
| 1439 | ((mbcsHeader.options=ds->readUInt32(inMBCSHeader->options))& |
| 1440 | MBCS_OPT_UNKNOWN_INCOMPATIBLE_MASK)==0 |
| 1441 | ) { |
| 1442 | mbcsHeaderLength=mbcsHeader.options&MBCS_OPT_LENGTH_MASK; |
| 1443 | noFromU=(UBool)((mbcsHeader.options&MBCS_OPT_NO_FROM_U)!=0); |
| 1444 | } else { |
| 1445 | udata_printErrorudata_printError_71(ds, "ucnv_swap(): unsupported _MBCSHeader.version %d.%d\n", |
| 1446 | inMBCSHeader->version[0], inMBCSHeader->version[1]); |
| 1447 | *pErrorCode=U_UNSUPPORTED_ERROR; |
| 1448 | return 0; |
| 1449 | } |
| 1450 | |
| 1451 | uprv_memcpy(mbcsHeader.version, inMBCSHeader->version, 4)do { clang diagnostic push
clang diagnostic ignored "-Waddress" (void)0; (void)0; clang diagnostic pop :: memcpy(mbcsHeader .version, inMBCSHeader->version, 4); } while (false); |
| 1452 | mbcsHeader.countStates= ds->readUInt32(inMBCSHeader->countStates); |
| 1453 | mbcsHeader.countToUFallbacks= ds->readUInt32(inMBCSHeader->countToUFallbacks); |
| 1454 | mbcsHeader.offsetToUCodeUnits= ds->readUInt32(inMBCSHeader->offsetToUCodeUnits); |
| 1455 | mbcsHeader.offsetFromUTable= ds->readUInt32(inMBCSHeader->offsetFromUTable); |
| 1456 | mbcsHeader.offsetFromUBytes= ds->readUInt32(inMBCSHeader->offsetFromUBytes); |
| 1457 | mbcsHeader.flags= ds->readUInt32(inMBCSHeader->flags); |
| 1458 | mbcsHeader.fromUBytesLength= ds->readUInt32(inMBCSHeader->fromUBytesLength); |
| 1459 | /* mbcsHeader.options have been read above */ |
| 1460 | |
| 1461 | extOffset=(int32_t)(mbcsHeader.flags>>8); |
| 1462 | outputType=(uint8_t)mbcsHeader.flags; |
| 1463 | if(noFromU && outputType==MBCS_OUTPUT_1) { |
| 1464 | udata_printErrorudata_printError_71(ds, "ucnv_swap(): unsupported combination of makeconv --small with SBCS\n"); |
| 1465 | *pErrorCode=U_UNSUPPORTED_ERROR; |
| 1466 | return 0; |
| 1467 | } |
| 1468 | |
| 1469 | /* make sure that the output type is known */ |
| 1470 | switch(outputType) { |
| 1471 | case MBCS_OUTPUT_1: |
| 1472 | case MBCS_OUTPUT_2: |
| 1473 | case MBCS_OUTPUT_3: |
| 1474 | case MBCS_OUTPUT_4: |
| 1475 | case MBCS_OUTPUT_3_EUC: |
| 1476 | case MBCS_OUTPUT_4_EUC: |
| 1477 | case MBCS_OUTPUT_2_SISO: |
| 1478 | case MBCS_OUTPUT_EXT_ONLY: |
| 1479 | /* OK */ |
| 1480 | break; |
| 1481 | default: |
| 1482 | udata_printErrorudata_printError_71(ds, "ucnv_swap(): unsupported MBCS output type 0x%x\n", |
| 1483 | outputType); |
| 1484 | *pErrorCode=U_UNSUPPORTED_ERROR; |
| 1485 | return 0; |
| 1486 | } |
| 1487 | |
| 1488 | /* calculate the length of the MBCS data */ |
| 1489 | |
| 1490 | /* |
| 1491 | * utf8Friendly MBCS files (mbcsHeader.version 4.3) |
| 1492 | * contain an additional mbcsIndex table: |
| 1493 | * uint16_t[(maxFastUChar+1)>>6]; |
| 1494 | * where maxFastUChar=((mbcsHeader.version[2]<<8)|0xff). |
| 1495 | */ |
| 1496 | maxFastUChar=0; |
| 1497 | mbcsIndexLength=0; |
| 1498 | if( outputType!=MBCS_OUTPUT_EXT_ONLY && outputType!=MBCS_OUTPUT_1 && |
| 1499 | mbcsHeader.version[1]>=3 && (maxFastUChar=mbcsHeader.version[2])!=0 |
| 1500 | ) { |
| 1501 | maxFastUChar=(maxFastUChar<<8)|0xff; |
| 1502 | mbcsIndexLength=((maxFastUChar+1)>>6)*2; /* number of bytes */ |
| 1503 | } |
| 1504 | |
| 1505 | if(extOffset==0) { |
| 1506 | size=(int32_t)(mbcsHeader.offsetFromUBytes+mbcsIndexLength); |
| 1507 | if(!noFromU) { |
| 1508 | size+=(int32_t)mbcsHeader.fromUBytesLength; |
| 1509 | } |
| 1510 | |
| 1511 | /* avoid compiler warnings - not otherwise necessary, and the value does not matter */ |
| 1512 | inExtIndexes=NULL__null; |
| 1513 | } else { |
| 1514 | /* there is extension data after the base data, see ucnv_ext.h */ |
| 1515 | if(length>=0 && length<(extOffset+UCNV_EXT_INDEXES_MIN_LENGTH*4)) { |
| 1516 | udata_printErrorudata_printError_71(ds, "ucnv_swap(): too few bytes (%d after headers) for an ICU MBCS .cnv conversion table with extension data\n", |
| 1517 | length); |
| 1518 | *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
| 1519 | return 0; |
| 1520 | } |
| 1521 | |
| 1522 | inExtIndexes=(const int32_t *)(inBytes+extOffset); |
| 1523 | size=extOffset+udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_SIZE]); |
| 1524 | } |
| 1525 | |
| 1526 | if(length>=0) { |
| 1527 | if(length<size) { |
| 1528 | udata_printErrorudata_printError_71(ds, "ucnv_swap(): too few bytes (%d after headers) for an ICU MBCS .cnv conversion table\n", |
| 1529 | length); |
| 1530 | *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
| 1531 | return 0; |
| 1532 | } |
| 1533 | |
| 1534 | /* copy the data for inaccessible bytes */ |
| 1535 | if(inBytes!=outBytes) { |
| 1536 | uprv_memcpy(outBytes, inBytes, size)do { clang diagnostic push
clang diagnostic ignored "-Waddress" (void)0; (void)0; clang diagnostic pop :: memcpy(outBytes, inBytes, size); } while (false); |
| 1537 | } |
| 1538 | |
| 1539 | /* swap the MBCSHeader, except for the version field */ |
| 1540 | count=mbcsHeaderLength*4; |
| 1541 | ds->swapArray32(ds, &inMBCSHeader->countStates, count-4, |
| 1542 | &outMBCSHeader->countStates, pErrorCode); |
| 1543 | |
| 1544 | if(outputType==MBCS_OUTPUT_EXT_ONLY) { |
| 1545 | /* |
| 1546 | * extension-only file, |
| 1547 | * contains a base name instead of normal base table data |
| 1548 | */ |
| 1549 | |
| 1550 | /* swap the base name, between the header and the extension data */ |
| 1551 | const char *inBaseName=(const char *)inBytes+count; |
| 1552 | char *outBaseName=(char *)outBytes+count; |
| 1553 | ds->swapInvChars(ds, inBaseName, (int32_t)uprv_strlen(inBaseName):: strlen(inBaseName), |
| 1554 | outBaseName, pErrorCode); |
| 1555 | } else { |
| 1556 | /* normal file with base table data */ |
| 1557 | |
| 1558 | /* swap the state table, 1kB per state */ |
| 1559 | offset=count; |
| 1560 | count=mbcsHeader.countStates*1024; |
| 1561 | ds->swapArray32(ds, inBytes+offset, (int32_t)count, |
| 1562 | outBytes+offset, pErrorCode); |
| 1563 | |
| 1564 | /* swap the toUFallbacks[] */ |
| 1565 | offset+=count; |
| 1566 | count=mbcsHeader.countToUFallbacks*8; |
| 1567 | ds->swapArray32(ds, inBytes+offset, (int32_t)count, |
| 1568 | outBytes+offset, pErrorCode); |
| 1569 | |
| 1570 | /* swap the unicodeCodeUnits[] */ |
| 1571 | offset=mbcsHeader.offsetToUCodeUnits; |
| 1572 | count=mbcsHeader.offsetFromUTable-offset; |
| 1573 | ds->swapArray16(ds, inBytes+offset, (int32_t)count, |
| 1574 | outBytes+offset, pErrorCode); |
| 1575 | |
| 1576 | /* offset to the stage 1 table, independent of the outputType */ |
| 1577 | offset=mbcsHeader.offsetFromUTable; |
| 1578 | |
| 1579 | if(outputType==MBCS_OUTPUT_1) { |
| 1580 | /* SBCS: swap the fromU tables, all 16 bits wide */ |
| 1581 | count=(mbcsHeader.offsetFromUBytes-offset)+mbcsHeader.fromUBytesLength; |
| 1582 | ds->swapArray16(ds, inBytes+offset, (int32_t)count, |
| 1583 | outBytes+offset, pErrorCode); |
| 1584 | } else { |
| 1585 | /* otherwise: swap the stage tables separately */ |
| 1586 | |
| 1587 | /* stage 1 table: uint16_t[0x440 or 0x40] */ |
| 1588 | if(inStaticData->unicodeMask&UCNV_HAS_SUPPLEMENTARY1) { |
| 1589 | count=0x440*2; /* for all of Unicode */ |
| 1590 | } else { |
| 1591 | count=0x40*2; /* only BMP */ |
| 1592 | } |
| 1593 | ds->swapArray16(ds, inBytes+offset, (int32_t)count, |
| 1594 | outBytes+offset, pErrorCode); |
| 1595 | |
| 1596 | /* stage 2 table: uint32_t[] */ |
| 1597 | offset+=count; |
| 1598 | count=mbcsHeader.offsetFromUBytes-offset; |
| 1599 | ds->swapArray32(ds, inBytes+offset, (int32_t)count, |
| 1600 | outBytes+offset, pErrorCode); |
| 1601 | |
| 1602 | /* stage 3/result bytes: sometimes uint16_t[] or uint32_t[] */ |
| 1603 | offset=mbcsHeader.offsetFromUBytes; |
| 1604 | count= noFromU ? 0 : mbcsHeader.fromUBytesLength; |
| 1605 | switch(outputType) { |
| 1606 | case MBCS_OUTPUT_2: |
| 1607 | case MBCS_OUTPUT_3_EUC: |
| 1608 | case MBCS_OUTPUT_2_SISO: |
| 1609 | ds->swapArray16(ds, inBytes+offset, (int32_t)count, |
| 1610 | outBytes+offset, pErrorCode); |
| 1611 | break; |
| 1612 | case MBCS_OUTPUT_4: |
| 1613 | ds->swapArray32(ds, inBytes+offset, (int32_t)count, |
| 1614 | outBytes+offset, pErrorCode); |
| 1615 | break; |
| 1616 | default: |
| 1617 | /* just uint8_t[], nothing to swap */ |
| 1618 | break; |
| 1619 | } |
| 1620 | |
| 1621 | if(mbcsIndexLength!=0) { |
| 1622 | offset+=count; |
| 1623 | count=mbcsIndexLength; |
| 1624 | ds->swapArray16(ds, inBytes+offset, (int32_t)count, |
| 1625 | outBytes+offset, pErrorCode); |
| 1626 | } |
| 1627 | } |
| 1628 | } |
| 1629 | |
| 1630 | if(extOffset!=0) { |
| 1631 | /* swap the extension data */ |
| 1632 | inBytes+=extOffset; |
| 1633 | outBytes+=extOffset; |
| 1634 | |
| 1635 | /* swap toUTable[] */ |
| 1636 | offset=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_TO_U_INDEX]); |
| 1637 | length=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_TO_U_LENGTH]); |
| 1638 | ds->swapArray32(ds, inBytes+offset, length*4, outBytes+offset, pErrorCode); |
| 1639 | |
| 1640 | /* swap toUUChars[] */ |
| 1641 | offset=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_TO_U_UCHARS_INDEX]); |
| 1642 | length=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_TO_U_UCHARS_LENGTH]); |
| 1643 | ds->swapArray16(ds, inBytes+offset, length*2, outBytes+offset, pErrorCode); |
| 1644 | |
| 1645 | /* swap fromUTableUChars[] */ |
| 1646 | offset=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_FROM_U_UCHARS_INDEX]); |
| 1647 | length=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_FROM_U_LENGTH]); |
| 1648 | ds->swapArray16(ds, inBytes+offset, length*2, outBytes+offset, pErrorCode); |
| 1649 | |
| 1650 | /* swap fromUTableValues[] */ |
| 1651 | offset=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_FROM_U_VALUES_INDEX]); |
| 1652 | /* same length as for fromUTableUChars[] */ |
| 1653 | ds->swapArray32(ds, inBytes+offset, length*4, outBytes+offset, pErrorCode); |
| 1654 | |
| 1655 | /* no need to swap fromUBytes[] */ |
| 1656 | |
| 1657 | /* swap fromUStage12[] */ |
| 1658 | offset=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_FROM_U_STAGE_12_INDEX]); |
| 1659 | length=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_FROM_U_STAGE_12_LENGTH]); |
| 1660 | ds->swapArray16(ds, inBytes+offset, length*2, outBytes+offset, pErrorCode); |
| 1661 | |
| 1662 | /* swap fromUStage3[] */ |
| 1663 | offset=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_FROM_U_STAGE_3_INDEX]); |
| 1664 | length=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_FROM_U_STAGE_3_LENGTH]); |
| 1665 | ds->swapArray16(ds, inBytes+offset, length*2, outBytes+offset, pErrorCode); |
| 1666 | |
| 1667 | /* swap fromUStage3b[] */ |
| 1668 | offset=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_FROM_U_STAGE_3B_INDEX]); |
| 1669 | length=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_FROM_U_STAGE_3B_LENGTH]); |
| 1670 | ds->swapArray32(ds, inBytes+offset, length*4, outBytes+offset, pErrorCode); |
| 1671 | |
| 1672 | /* swap indexes[] */ |
| 1673 | length=udata_readInt32udata_readInt32_71(ds, inExtIndexes[UCNV_EXT_INDEXES_LENGTH]); |
| 1674 | ds->swapArray32(ds, inBytes, length*4, outBytes, pErrorCode); |
| 1675 | } |
| 1676 | } |
| 1677 | } else { |
| 1678 | udata_printErrorudata_printError_71(ds, "ucnv_swap(): unknown conversionType=%d!=UCNV_MBCS\n", |
| 1679 | inStaticData->conversionType); |
| 1680 | *pErrorCode=U_UNSUPPORTED_ERROR; |
| 1681 | return 0; |
| 1682 | } |
| 1683 | |
| 1684 | return headerSize+(int32_t)staticDataSize+size; |
| 1685 | } |
| 1686 | |
| 1687 | #endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */ |
| 1688 | |
| 1689 | #endif |