| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright 2008, Google Inc. | |
| 2 // | |
| 3 // Redistribution and use in source and binary forms, with or without | |
| 4 // modification, are permitted provided that the following conditions are met: | |
| 5 // | |
| 6 // 1. Redistributions of source code must retain the above copyright notice, | |
| 7 // this list of conditions and the following disclaimer. | |
| 8 // 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 9 // this list of conditions and the following disclaimer in the documentation | |
| 10 // and/or other materials provided with the distribution. | |
| 11 // 3. Neither the name of Google Inc. nor the names of its contributors may be | |
| 12 // used to endorse or promote products derived from this software without | |
| 13 // specific prior written permission. | |
| 14 // | |
| 15 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
| 16 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 17 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
| 18 // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 19 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 20 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
| 21 // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| 22 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
| 23 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| 24 // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 25 | |
| 26 // This file contains code that is specific to Symbian. | |
| 27 // Differently from the rest of SQLite, it is implemented in C++ as this is | |
| 28 // the native language of the OS and all interfaces we need to use are C++. | |
| 29 // | |
| 30 // This file follows the Gears code style guidelines. | |
| 31 | |
| 32 #ifdef OS_SYMBIAN | |
| 33 #include <coemain.h> | |
| 34 #include <e32math.h> | |
| 35 #include <f32file.h> | |
| 36 #include <utf.h> | |
| 37 | |
| 38 extern "C" { | |
| 39 #include "sqliteInt.h" | |
| 40 #include "os_common.h" | |
| 41 } | |
| 42 | |
| 43 const TInt kFileLockAttempts = 3; | |
| 44 | |
| 45 // The global file system session. | |
| 46 RFs g_fs_session; | |
| 47 | |
| 48 static TInt UTF8ToUTF16(const char *in, TDes *out16) { | |
| 49 assert(in); | |
| 50 TPtrC8 in_des(reinterpret_cast<const unsigned char*>(in)); | |
| 51 return CnvUtfConverter::ConvertToUnicodeFromUtf8(*out16, in_des); | |
| 52 } | |
| 53 | |
| 54 static TInt UTF16ToUTF8(const TDesC16& in16, TDes8 *out8) { | |
| 55 return CnvUtfConverter::ConvertFromUnicodeToUtf8(*out8, in16); | |
| 56 } | |
| 57 | |
| 58 // The SymbianFile structure is a subclass of sqlite3_file* specific to the | |
| 59 // Symbian portability layer. | |
| 60 struct SymbianFile { | |
| 61 const sqlite3_io_methods *methods; | |
| 62 RFile handle; // The file handle | |
| 63 TUint8 lock_type; // Type of lock currently held on this file | |
| 64 TUint16 shared_lock_byte; // Randomly chosen byte used as a shared lock | |
| 65 }; | |
| 66 | |
| 67 static SymbianFile* ConvertToSymbianFile(sqlite3_file* const id) { | |
| 68 assert(id); | |
| 69 return reinterpret_cast<SymbianFile*>(id); | |
| 70 } | |
| 71 | |
| 72 static int SymbianClose(sqlite3_file *id) { | |
| 73 SymbianFile *file_id = ConvertToSymbianFile(id); | |
| 74 file_id->handle.Close(); | |
| 75 OpenCounter(-1); | |
| 76 return SQLITE_OK; | |
| 77 } | |
| 78 | |
| 79 static int SymbianRead(sqlite3_file *id, | |
| 80 void *buffer, | |
| 81 int amount, | |
| 82 sqlite3_int64 offset) { | |
| 83 assert(buffer); | |
| 84 assert(amount >=0); | |
| 85 assert(offset >=0); | |
| 86 | |
| 87 SymbianFile* file_id = ConvertToSymbianFile(id); | |
| 88 TPtr8 dest(static_cast<unsigned char*>(buffer), amount); | |
| 89 | |
| 90 if (KErrNone == file_id->handle.Read(offset, dest, amount)) { | |
| 91 if (dest.Length() == amount) { | |
| 92 return SQLITE_OK; | |
| 93 } else { | |
| 94 return SQLITE_IOERR_SHORT_READ; | |
| 95 } | |
| 96 } else { | |
| 97 return SQLITE_IOERR; | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 static int SymbianWrite(sqlite3_file *id, | |
| 102 const void *buffer, | |
| 103 int amount, | |
| 104 sqlite3_int64 offset) { | |
| 105 assert(buffer); | |
| 106 assert(amount >=0); | |
| 107 assert(offset >=0); | |
| 108 | |
| 109 SymbianFile *file_id = ConvertToSymbianFile(id); | |
| 110 TPtrC8 src(static_cast<const unsigned char*>(buffer), amount); | |
| 111 if (file_id->handle.Write(offset, src) != KErrNone) { | |
| 112 return SQLITE_IOERR_WRITE; | |
| 113 } | |
| 114 | |
| 115 return SQLITE_OK; | |
| 116 } | |
| 117 | |
| 118 static int SymbianTruncate(sqlite3_file *id, sqlite3_int64 bytes) { | |
| 119 assert(bytes >=0); | |
| 120 | |
| 121 SymbianFile *file_id = ConvertToSymbianFile(id); | |
| 122 if (file_id->handle.SetSize(bytes) != KErrNone) { | |
| 123 return SQLITE_IOERR; | |
| 124 } | |
| 125 return SQLITE_OK; | |
| 126 } | |
| 127 | |
| 128 static int SymbianSync(sqlite3_file *id, int /*flags*/) { | |
| 129 SymbianFile *file_id = ConvertToSymbianFile(id); | |
| 130 if (file_id->handle.Flush() != KErrNone) { | |
| 131 return SQLITE_IOERR; | |
| 132 } else { | |
| 133 return SQLITE_OK; | |
| 134 } | |
| 135 } | |
| 136 | |
| 137 static int SymbianFileSize(sqlite3_file *id, sqlite3_int64 *size) { | |
| 138 assert(size); | |
| 139 | |
| 140 SymbianFile *file_id = ConvertToSymbianFile(id); | |
| 141 TInt size_tmp; | |
| 142 if (file_id->handle.Size(size_tmp) != KErrNone) { | |
| 143 return SQLITE_IOERR; | |
| 144 } | |
| 145 *size = size_tmp; | |
| 146 return SQLITE_OK; | |
| 147 } | |
| 148 | |
| 149 // File lock/unlock functions; see os_win.c for a description | |
| 150 // of the algorithm used. | |
| 151 static int GetReadLock(SymbianFile *file) { | |
| 152 file->shared_lock_byte = Math::Random() % (SHARED_SIZE - 1); | |
| 153 return file->handle.Lock(SHARED_FIRST + file->shared_lock_byte, 1); | |
| 154 } | |
| 155 | |
| 156 static int UnlockReadLock(SymbianFile *file) { | |
| 157 return file->handle.UnLock(SHARED_FIRST + file->shared_lock_byte, 1); | |
| 158 } | |
| 159 | |
| 160 static int SymbianLock(sqlite3_file *id, int lock_type) { | |
| 161 SymbianFile *file = ConvertToSymbianFile(id); | |
| 162 if (file->lock_type >= lock_type) { | |
| 163 return SQLITE_OK; | |
| 164 } | |
| 165 | |
| 166 // Make sure the locking sequence is correct | |
| 167 assert(file->lock_type != NO_LOCK || lock_type == SHARED_LOCK); | |
| 168 assert(lock_type != PENDING_LOCK); | |
| 169 assert(lock_type != RESERVED_LOCK || file->lock_type == SHARED_LOCK); | |
| 170 | |
| 171 // Lock the PENDING_LOCK byte if we need to acquire a PENDING lock or | |
| 172 // a SHARED lock. If we are acquiring a SHARED lock, the acquisition of | |
| 173 // the PENDING_LOCK byte is temporary. | |
| 174 int new_lock_type = file->lock_type; | |
| 175 int got_pending_lock = 0; | |
| 176 int res = KErrNone; | |
| 177 if (file->lock_type == NO_LOCK || | |
| 178 (lock_type == EXCLUSIVE_LOCK && file->lock_type == RESERVED_LOCK)) { | |
| 179 int count = kFileLockAttempts; | |
| 180 while (count-- > 0 && | |
| 181 (res = file->handle.Lock(PENDING_BYTE, 1)) != KErrNone ) { | |
| 182 // Try 3 times to get the pending lock. The pending lock might be | |
| 183 // held by another reader process who will release it momentarily. | |
| 184 OSTRACE2("could not get a PENDING lock. cnt=%d\n", cnt); | |
| 185 User::After(1000); | |
| 186 } | |
| 187 got_pending_lock = (res == KErrNone? 1 : 0); | |
| 188 } | |
| 189 | |
| 190 // Acquire a shared lock | |
| 191 if (lock_type == SHARED_LOCK && res == KErrNone) { | |
| 192 assert(file->lock_type == NO_LOCK); | |
| 193 res = GetReadLock(file); | |
| 194 if (res == KErrNone) { | |
| 195 new_lock_type = SHARED_LOCK; | |
| 196 } | |
| 197 } | |
| 198 | |
| 199 // Acquire a RESERVED lock | |
| 200 if (lock_type == RESERVED_LOCK && res == KErrNone) { | |
| 201 assert(file->lock_type == SHARED_LOCK); | |
| 202 res = file->handle.Lock(RESERVED_BYTE, 1); | |
| 203 if (res == KErrNone) { | |
| 204 new_lock_type = RESERVED_LOCK; | |
| 205 } | |
| 206 } | |
| 207 | |
| 208 // Acquire a PENDING lock | |
| 209 if (lock_type == EXCLUSIVE_LOCK && res == KErrNone) { | |
| 210 new_lock_type = PENDING_LOCK; | |
| 211 got_pending_lock = 0; | |
| 212 } | |
| 213 | |
| 214 // Acquire an EXCLUSIVE lock | |
| 215 if (lock_type == EXCLUSIVE_LOCK && res == KErrNone) { | |
| 216 assert(file->lock_type >= SHARED_LOCK); | |
| 217 res = UnlockReadLock(file); | |
| 218 OSTRACE2("unreadlock = %d\n", res); | |
| 219 res = file->handle.Lock(SHARED_FIRST, SHARED_SIZE); | |
| 220 if (res == KErrNone) { | |
| 221 new_lock_type = EXCLUSIVE_LOCK; | |
| 222 } else { | |
| 223 OSTRACE2("error-code = %d\n", GetLastError()); | |
| 224 GetReadLock(file); | |
| 225 } | |
| 226 } | |
| 227 | |
| 228 // If we are holding a PENDING lock that ought to be released, then | |
| 229 // release it now. | |
| 230 if (got_pending_lock && lock_type == SHARED_LOCK) { | |
| 231 file->handle.UnLock(PENDING_BYTE, 1); | |
| 232 } | |
| 233 | |
| 234 // Update the state of the lock held in the file descriptor, then | |
| 235 // return the appropriate result code. | |
| 236 file->lock_type = new_lock_type; | |
| 237 if (res == KErrNone) { | |
| 238 return SQLITE_OK; | |
| 239 } else { | |
| 240 OSTRACE4("LOCK FAILED %d trying for %d but got %d\n", file->handle, | |
| 241 lock_type, new_lock_type); | |
| 242 return SQLITE_BUSY; | |
| 243 } | |
| 244 } | |
| 245 | |
| 246 static int SymbianUnlock(sqlite3_file *id, int lock_type) { | |
| 247 int type; | |
| 248 int rc = SQLITE_OK; | |
| 249 SymbianFile *file = ConvertToSymbianFile(id); | |
| 250 assert(lock_type <= SHARED_LOCK); | |
| 251 OSTRACE5("UNLOCK %d to %d was %d(%d)\n", file->handle, lock_type, | |
| 252 file->lock_type, file->shared_lock_byte); | |
| 253 type = file->lock_type; | |
| 254 if (type >= EXCLUSIVE_LOCK) { | |
| 255 file->handle.UnLock(SHARED_FIRST, SHARED_SIZE); | |
| 256 if (lock_type == SHARED_LOCK && GetReadLock(file) != KErrNone) { | |
| 257 // This should never happen. We should always be able to | |
| 258 // reacquire the read lock | |
| 259 rc = SQLITE_IOERR_UNLOCK; | |
| 260 } | |
| 261 } | |
| 262 if (type >= RESERVED_LOCK) { | |
| 263 file->handle.UnLock(RESERVED_BYTE, 1); | |
| 264 } | |
| 265 if (lock_type == NO_LOCK && type >= SHARED_LOCK) { | |
| 266 UnlockReadLock(file); | |
| 267 } | |
| 268 if (type >= PENDING_LOCK) { | |
| 269 file->handle.UnLock(PENDING_BYTE, 1); | |
| 270 } | |
| 271 file->lock_type = lock_type; | |
| 272 return rc; | |
| 273 } | |
| 274 | |
| 275 static int SymbianCheckReservedLock(sqlite3_file *id, int *result) { | |
| 276 int rc; | |
| 277 SymbianFile *file = ConvertToSymbianFile(id); | |
| 278 if (file->lock_type >= RESERVED_LOCK) { | |
| 279 rc = 1; | |
| 280 OSTRACE3("TEST WR-LOCK %d %d (local)\n", pFile->h, rc); | |
| 281 } else { | |
| 282 rc = file->handle.Lock(RESERVED_BYTE, 1); | |
| 283 if (rc == KErrNone) { | |
| 284 file->handle.UnLock(RESERVED_BYTE, 1); | |
| 285 } | |
| 286 rc = !rc; | |
| 287 OSTRACE3("TEST WR-LOCK %d %d (remote)\n", file->handle, rc); | |
| 288 } | |
| 289 *result = rc; | |
| 290 return SQLITE_OK; | |
| 291 } | |
| 292 | |
| 293 static int SymbianFileControl(sqlite3_file */*id*/, | |
| 294 int /*op*/, | |
| 295 void */*arg*/) { | |
| 296 return SQLITE_OK; | |
| 297 } | |
| 298 | |
| 299 static int SymbianSectorSize(sqlite3_file */*id*/) { | |
| 300 return SQLITE_DEFAULT_SECTOR_SIZE; | |
| 301 } | |
| 302 | |
| 303 static int SymbianDeviceCharacteristics(sqlite3_file */*id*/) { | |
| 304 return 0; | |
| 305 } | |
| 306 | |
| 307 /* | |
| 308 ** This vector defines all the methods that can operate on a | |
| 309 ** sqlite3_file for Symbian. | |
| 310 */ | |
| 311 static const sqlite3_io_methods SymbianIoMethod = { | |
| 312 1, // iVersion | |
| 313 SymbianClose, | |
| 314 SymbianRead, | |
| 315 SymbianWrite, | |
| 316 SymbianTruncate, | |
| 317 SymbianSync, | |
| 318 SymbianFileSize, | |
| 319 SymbianLock, | |
| 320 SymbianUnlock, | |
| 321 SymbianCheckReservedLock, | |
| 322 SymbianFileControl, | |
| 323 SymbianSectorSize, | |
| 324 SymbianDeviceCharacteristics | |
| 325 }; | |
| 326 | |
| 327 // ============================================================================ | |
| 328 // vfs methods begin here | |
| 329 // ============================================================================ | |
| 330 static int SymbianOpen(sqlite3_vfs */*vfs*/, | |
| 331 const char *name, | |
| 332 sqlite3_file *id, | |
| 333 int flags, | |
| 334 int *out_flags) { | |
| 335 TUint desired_access; | |
| 336 TUint share_mode; | |
| 337 TInt err = KErrNone; | |
| 338 TFileName name_utf16; | |
| 339 SymbianFile *file = ConvertToSymbianFile(id); | |
| 340 | |
| 341 if (out_flags) { | |
| 342 *out_flags = flags; | |
| 343 } | |
| 344 | |
| 345 // if the name is NULL we have to open a temporary file. | |
| 346 if (!name) { | |
| 347 TPath private_path; | |
| 348 TFileName file_name; | |
| 349 if (g_fs_session.PrivatePath(private_path) != KErrNone) { | |
| 350 return SQLITE_CANTOPEN; | |
| 351 } | |
| 352 if (file->handle.Temp(g_fs_session, | |
| 353 private_path, | |
| 354 file_name, | |
| 355 EFileWrite) != | |
| 356 KErrNone) { | |
| 357 return SQLITE_CANTOPEN; | |
| 358 } | |
| 359 file->methods = &SymbianIoMethod; | |
| 360 file->lock_type = NO_LOCK; | |
| 361 file->shared_lock_byte = 0; | |
| 362 OpenCounter(+1); | |
| 363 return SQLITE_OK; | |
| 364 } | |
| 365 | |
| 366 if (UTF8ToUTF16(name, &name_utf16) != KErrNone) | |
| 367 return SQLITE_CANTOPEN; | |
| 368 | |
| 369 if (flags & SQLITE_OPEN_READWRITE) { | |
| 370 desired_access = EFileWrite; | |
| 371 } else { | |
| 372 desired_access = EFileRead; | |
| 373 } | |
| 374 if (flags & SQLITE_OPEN_MAIN_DB) { | |
| 375 share_mode = EFileShareReadersOrWriters; | |
| 376 } else { | |
| 377 share_mode = 0; | |
| 378 } | |
| 379 | |
| 380 if (flags & SQLITE_OPEN_CREATE) { | |
| 381 err = file->handle.Create(g_fs_session, | |
| 382 name_utf16, | |
| 383 desired_access | share_mode); | |
| 384 if (err != KErrNone && err != KErrAlreadyExists) { | |
| 385 return SQLITE_CANTOPEN; | |
| 386 } | |
| 387 } | |
| 388 | |
| 389 if (err != KErrNone) { | |
| 390 err = file->handle.Open(g_fs_session, | |
| 391 name_utf16, | |
| 392 desired_access | share_mode); | |
| 393 if (err != KErrNone && flags & SQLITE_OPEN_READWRITE) { | |
| 394 if (out_flags) { | |
| 395 *out_flags = (flags | SQLITE_OPEN_READONLY) & ~SQLITE_OPEN_READWRITE; | |
| 396 } | |
| 397 desired_access = EFileRead; | |
| 398 err = file->handle.Open(g_fs_session, | |
| 399 name_utf16, | |
| 400 desired_access | share_mode); | |
| 401 } | |
| 402 if (err != KErrNone) { | |
| 403 return SQLITE_CANTOPEN; | |
| 404 } | |
| 405 } | |
| 406 file->methods = &SymbianIoMethod; | |
| 407 file->lock_type = NO_LOCK; | |
| 408 file->shared_lock_byte = 0; | |
| 409 OpenCounter(+1); | |
| 410 return SQLITE_OK; | |
| 411 } | |
| 412 | |
| 413 static int SymbianDelete(sqlite3_vfs */*vfs*/, | |
| 414 const char *file_name, | |
| 415 int /*sync_dir*/) { | |
| 416 assert(file_name); | |
| 417 TFileName file_name_utf16; | |
| 418 | |
| 419 if (UTF8ToUTF16(file_name, &file_name_utf16) != KErrNone) { | |
| 420 return SQLITE_ERROR; | |
| 421 } | |
| 422 | |
| 423 TInt result = g_fs_session.Delete(file_name_utf16); | |
| 424 return (result == KErrNone || result == KErrPathNotFound)? | |
| 425 SQLITE_OK : SQLITE_IOERR_DELETE; | |
| 426 } | |
| 427 | |
| 428 static int SymbianAccess(sqlite3_vfs */*vfs*/, | |
| 429 const char *file_name, | |
| 430 int flags, | |
| 431 int *result) { | |
| 432 assert(file_name); | |
| 433 TEntry entry; | |
| 434 TFileName file_name_utf16; | |
| 435 | |
| 436 if (UTF8ToUTF16(file_name, &file_name_utf16) != KErrNone) { | |
| 437 return SQLITE_ERROR; | |
| 438 } | |
| 439 | |
| 440 if (g_fs_session.Entry(file_name_utf16, entry) != KErrNone) { | |
| 441 *result = 0; | |
| 442 return SQLITE_OK; | |
| 443 } | |
| 444 | |
| 445 switch (flags) { | |
| 446 case SQLITE_ACCESS_READ: | |
| 447 case SQLITE_ACCESS_EXISTS: | |
| 448 *result = !entry.IsDir(); | |
| 449 break; | |
| 450 case SQLITE_ACCESS_READWRITE: | |
| 451 *result = !entry.IsDir() && !entry.IsReadOnly(); | |
| 452 break; | |
| 453 default: | |
| 454 return SQLITE_ERROR; | |
| 455 } | |
| 456 | |
| 457 return SQLITE_OK; | |
| 458 } | |
| 459 | |
| 460 static int SymbianFullPathname(sqlite3_vfs */*vfs*/, | |
| 461 const char *relative, | |
| 462 int full_len, | |
| 463 char *full) { | |
| 464 assert(relative); | |
| 465 assert(full); | |
| 466 | |
| 467 TParse parse; | |
| 468 TPath relative_utf16; | |
| 469 TPath base_path; | |
| 470 TPtr8 full_utf8(reinterpret_cast<unsigned char*>(full), full_len); | |
| 471 | |
| 472 g_fs_session.PrivatePath(base_path); | |
| 473 | |
| 474 if (UTF8ToUTF16(relative, &relative_utf16) != KErrNone) { | |
| 475 return SQLITE_ERROR; | |
| 476 } | |
| 477 | |
| 478 if (parse.Set(relative_utf16, &base_path, NULL) != KErrNone) { | |
| 479 return SQLITE_ERROR; | |
| 480 } | |
| 481 | |
| 482 TDesC full_utf16(parse.FullName()); | |
| 483 if (UTF16ToUTF8(relative_utf16, &full_utf8) != KErrNone) { | |
| 484 return SQLITE_ERROR; | |
| 485 } | |
| 486 | |
| 487 full_utf8.PtrZ(); | |
| 488 return SQLITE_OK; | |
| 489 } | |
| 490 | |
| 491 static int SymbianRandomness(sqlite3_vfs */*vfs*/, int buf_len, char *buffer) { | |
| 492 assert(buffer); | |
| 493 TInt64 seed = User::TickCount(); | |
| 494 for (TInt i = 0; i < buf_len; i++) { | |
| 495 buffer[i] = Math::Rand(seed) % 255; | |
| 496 } | |
| 497 return SQLITE_OK; | |
| 498 } | |
| 499 | |
| 500 static int SymbianSleep(sqlite3_vfs */*vfs*/, int microsec) { | |
| 501 User::After(microsec); | |
| 502 return SQLITE_OK; | |
| 503 } | |
| 504 | |
| 505 int SymbianCurrentTime(sqlite3_vfs */*vfs*/, double *now) { | |
| 506 _LIT(kEpoch, "19700101:000000.000000"); | |
| 507 assert(now); | |
| 508 TTime time; | |
| 509 TTime epoch_time(kEpoch); | |
| 510 TTimeIntervalSeconds interval; | |
| 511 | |
| 512 time.HomeTime(); | |
| 513 // calculate seconds elapsed since 1-1-1970 | |
| 514 time.SecondsFrom(epoch_time, interval); | |
| 515 | |
| 516 // Julian date @ 1-1-1970 = 2440587.5 | |
| 517 // seconds per day = 86400.0 | |
| 518 *now = interval.Int()/86400.0 + 2440587.5; | |
| 519 return SQLITE_OK; | |
| 520 } | |
| 521 | |
| 522 static int SymbianGetLastError(sqlite3_vfs */*vfs*/, | |
| 523 int /*buf_len*/, | |
| 524 char */*buf*/) { | |
| 525 assert(buf[0] == '\0'); | |
| 526 return 0; | |
| 527 } | |
| 528 | |
| 529 // Interfaces for opening a shared library, finding entry points | |
| 530 // within the shared library, and closing the shared library. | |
| 531 // TODO(marcogelmi): implement. | |
| 532 #define SymbianDlOpen 0 | |
| 533 #define SymbianDlError 0 | |
| 534 #define SymbianDlSym 0 | |
| 535 #define SymbianDlClose 0 | |
| 536 | |
| 537 // Initialize and deinitialize the operating system interface. | |
| 538 int sqlite3_os_init(void) { | |
| 539 static sqlite3_vfs symbian_vfs = { | |
| 540 1, // iVersion | |
| 541 sizeof(SymbianFile), // szOsFile | |
| 542 KMaxPath, // mxPathname | |
| 543 0, // pNext | |
| 544 "symbian", // name | |
| 545 0, // pAppData | |
| 546 | |
| 547 SymbianOpen, // xOpen | |
| 548 SymbianDelete, // xDelete | |
| 549 SymbianAccess, // xAccess | |
| 550 SymbianFullPathname, // xFullPathname | |
| 551 SymbianDlOpen, // xDlOpen | |
| 552 SymbianDlError, // xDlError | |
| 553 SymbianDlSym, // xDlSym | |
| 554 SymbianDlClose, // xDlClose | |
| 555 SymbianRandomness, // xRandomness | |
| 556 SymbianSleep, // xSleep | |
| 557 SymbianCurrentTime, // xCurrentTime | |
| 558 SymbianGetLastError // xGetLastError | |
| 559 }; | |
| 560 | |
| 561 if (g_fs_session.Connect() != KErrNone) { | |
| 562 return SQLITE_ERROR; | |
| 563 } | |
| 564 | |
| 565 if (g_fs_session.ShareAuto() != KErrNone) { | |
| 566 g_fs_session.Close(); | |
| 567 return SQLITE_ERROR; | |
| 568 } | |
| 569 | |
| 570 sqlite3_vfs_register(&symbian_vfs, 1); | |
| 571 return SQLITE_OK; | |
| 572 } | |
| 573 | |
| 574 int sqlite3_os_end(void) { | |
| 575 g_fs_session.Close(); | |
| 576 return SQLITE_OK; | |
| 577 } | |
| 578 | |
| 579 #endif /* OS_SYMBIAN*/ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 3108030:
Move bundled copy of sqlite one level deeper to better separate it... (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/