Overview
Comment: | OFMutableString: Call madvise() on the correct length. |
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Timelines: | family | ancestors | descendants | both | 0.5 |
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SHA3-256: |
66492140597a43bbc156cf4847abefee |
User & Date: | js on 2011-04-23 02:15:33 |
Other Links: | branch diff | manifest | tags |
Context
2011-04-25
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14:14 | Fix a warning when sizeof(size_t) < sizeof(long long). check-in: abff9ac184 user: js tags: 0.5 | |
2011-04-23
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02:15 | OFMutableString: Call madvise() on the correct length. check-in: 6649214059 user: js tags: 0.5 | |
01:32 | Fix too big buffer in -[OFMutableString _applyTable:withSize:]. check-in: 1acf3d2817 user: js tags: 0.5 | |
Changes
Modified src/OFMutableString.m from [af20c160ff] to [4ddd782651].
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263 264 265 266 267 268 269 | atIndex: 0]; } - (void)reverse { size_t i, j, len = length / 2; | | | | | | | | | | 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 | atIndex: 0]; } - (void)reverse { size_t i, j, len = length / 2; madvise(string, length, MADV_SEQUENTIAL); /* We reverse all bytes and restore UTF-8 later, if necessary */ for (i = 0, j = length - 1; i < len; i++, j--) { string[i] ^= string[j]; string[j] ^= string[i]; string[i] ^= string[j]; } if (!isUTF8) { madvise(string, length, MADV_NORMAL); return; } for (i = 0; i < length; i++) { /* ASCII */ if (OF_LIKELY(!(string[i] & 0x80))) continue; /* A start byte can't happen first as we reversed everything */ if (OF_UNLIKELY(string[i] & 0x40)) { madvise(string, length, MADV_NORMAL); @throw [OFInvalidEncodingException newWithClass: isa]; } /* Next byte must not be ASCII */ if (OF_UNLIKELY(length < i + 1 || !(string[i + 1] & 0x80))) { madvise(string, length, MADV_NORMAL); @throw [OFInvalidEncodingException newWithClass: isa]; } /* Next byte is the start byte */ if (OF_LIKELY(string[i + 1] & 0x40)) { string[i] ^= string[i + 1]; string[i + 1] ^= string[i]; string[i] ^= string[i + 1]; i++; continue; } /* Second next byte must not be ASCII */ if (OF_UNLIKELY(length < i + 2 || !(string[i + 2] & 0x80))) { madvise(string, length, MADV_NORMAL); @throw [OFInvalidEncodingException newWithClass: isa]; } /* Second next byte is the start byte */ if (OF_LIKELY(string[i + 2] & 0x40)) { string[i] ^= string[i + 2]; string[i + 2] ^= string[i]; string[i] ^= string[i + 2]; i += 2; continue; } /* Third next byte must not be ASCII */ if (OF_UNLIKELY(length < i + 3 || !(string[i + 3] & 0x80))) { madvise(string, length, MADV_NORMAL); @throw [OFInvalidEncodingException newWithClass: isa]; } /* Third next byte is the start byte */ if (OF_LIKELY(string[i + 3] & 0x40)) { string[i] ^= string[i + 3]; string[i + 3] ^= string[i]; string[i] ^= string[i + 3]; string[i + 1] ^= string[i + 2]; string[i + 2] ^= string[i + 1]; string[i + 1] ^= string[i + 2]; i += 3; continue; } /* UTF-8 does not allow more than 4 bytes per character */ madvise(string, length, MADV_NORMAL); @throw [OFInvalidEncodingException newWithClass: isa]; } madvise(string, length, MADV_NORMAL); } - (void)upper { [self _applyTable: of_unicode_upper_table withSize: OF_UNICODE_UPPER_TABLE_SIZE]; } |
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