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| 1 /* | |
| 2 ** 2008 April 10 | |
| 3 ** | |
| 4 ** The author disclaims copyright to this source code. In place of | |
| 5 ** a legal notice, here is a blessing: | |
| 6 ** | |
| 7 ** May you do good and not evil. | |
| 8 ** May you find forgiveness for yourself and forgive others. | |
| 9 ** May you share freely, never taking more than you give. | |
| 10 ** | |
| 11 ****************************************************************************** | |
| 12 ** | |
| 13 ** This file contains the implementation of an SQLite vfs wrapper that | |
| 14 ** adds instrumentation to all vfs and file methods. C and Tcl interfaces | |
| 15 ** are provided to control the instrumentation. | |
| 16 ** | |
| 17 ** $Id: test_osinst.c,v 1.19 2009/01/08 17:57:32 danielk1977 Exp $ | |
| 18 */ | |
| 19 | |
| 20 #ifdef SQLITE_ENABLE_INSTVFS | |
| 21 /* | |
| 22 ** C interface: | |
| 23 ** | |
| 24 ** sqlite3_instvfs_create() | |
| 25 ** sqlite3_instvfs_destroy() | |
| 26 ** sqlite3_instvfs_configure() | |
| 27 ** | |
| 28 ** sqlite3_instvfs_reset() | |
| 29 ** sqlite3_instvfs_get() | |
| 30 ** | |
| 31 ** sqlite3_instvfs_binarylog | |
| 32 ** sqlite3_instvfs_binarylog_marker | |
| 33 ** | |
| 34 ** Tcl interface (omitted if SQLITE_TEST is not set): | |
| 35 ** | |
| 36 ** sqlite3_instvfs create NAME ?PARENT? | |
| 37 ** | |
| 38 ** Create and register new vfs called $NAME, which is a wrapper around | |
| 39 ** the existing vfs $PARENT. If the PARENT argument is omitted, the | |
| 40 ** new vfs is a wrapper around the current default vfs. | |
| 41 ** | |
| 42 ** sqlite3_instvfs destroy NAME | |
| 43 ** | |
| 44 ** Deregister and destroy the vfs named $NAME, which must have been | |
| 45 ** created by an earlier invocation of [sqlite3_instvfs create]. | |
| 46 ** | |
| 47 ** sqlite3_instvfs configure NAME SCRIPT | |
| 48 ** | |
| 49 ** Configure the callback script for the vfs $NAME, which much have | |
| 50 ** been created by an earlier invocation of [sqlite3_instvfs create]. | |
| 51 ** After a callback script has been configured, it is invoked each | |
| 52 ** time a vfs or file method is called by SQLite. Before invoking | |
| 53 ** the callback script, five arguments are appended to it: | |
| 54 ** | |
| 55 ** * The name of the invoked method - i.e. "xRead". | |
| 56 ** | |
| 57 ** * The time consumed by the method call as measured by | |
| 58 ** sqlite3Hwtime() (an integer value) | |
| 59 ** | |
| 60 ** * A string value with a different meaning for different calls. | |
| 61 ** For file methods, the name of the file being operated on. For | |
| 62 ** other methods it is the filename argument, if any. | |
| 63 ** | |
| 64 ** * A 32-bit integer value with a call-specific meaning. | |
| 65 ** | |
| 66 ** * A 64-bit integer value. For xRead() and xWrite() calls this | |
| 67 ** is the file offset being written to or read from. Unused by | |
| 68 ** all other calls. | |
| 69 ** | |
| 70 ** sqlite3_instvfs reset NAME | |
| 71 ** | |
| 72 ** Zero the internal event counters associated with vfs $NAME, | |
| 73 ** which must have been created by an earlier invocation of | |
| 74 ** [sqlite3_instvfs create]. | |
| 75 ** | |
| 76 ** sqlite3_instvfs report NAME | |
| 77 ** | |
| 78 ** Return the values of the internal event counters associated | |
| 79 ** with vfs $NAME. The report format is a list with one element | |
| 80 ** for each method call (xWrite, xRead etc.). Each element is | |
| 81 ** itself a list with three elements: | |
| 82 ** | |
| 83 ** * The name of the method call - i.e. "xWrite", | |
| 84 ** * The total number of calls to the method (an integer). | |
| 85 ** * The aggregate time consumed by all calls to the method as | |
| 86 ** measured by sqlite3Hwtime() (an integer). | |
| 87 */ | |
| 88 | |
| 89 #include "sqlite3.h" | |
| 90 #include <string.h> | |
| 91 #include <assert.h> | |
| 92 | |
| 93 /* | |
| 94 ** Maximum pathname length supported by the inst backend. | |
| 95 */ | |
| 96 #define INST_MAX_PATHNAME 512 | |
| 97 | |
| 98 | |
| 99 /* File methods */ | |
| 100 /* Vfs methods */ | |
| 101 #define OS_ACCESS 1 | |
| 102 #define OS_CHECKRESERVEDLOCK 2 | |
| 103 #define OS_CLOSE 3 | |
| 104 #define OS_CURRENTTIME 4 | |
| 105 #define OS_DELETE 5 | |
| 106 #define OS_DEVCHAR 6 | |
| 107 #define OS_FILECONTROL 7 | |
| 108 #define OS_FILESIZE 8 | |
| 109 #define OS_FULLPATHNAME 9 | |
| 110 #define OS_LOCK 11 | |
| 111 #define OS_OPEN 12 | |
| 112 #define OS_RANDOMNESS 13 | |
| 113 #define OS_READ 14 | |
| 114 #define OS_SECTORSIZE 15 | |
| 115 #define OS_SLEEP 16 | |
| 116 #define OS_SYNC 17 | |
| 117 #define OS_TRUNCATE 18 | |
| 118 #define OS_UNLOCK 19 | |
| 119 #define OS_WRITE 20 | |
| 120 | |
| 121 #define OS_NUMEVENTS 21 | |
| 122 | |
| 123 #define BINARYLOG_STRING 30 | |
| 124 #define BINARYLOG_MARKER 31 | |
| 125 | |
| 126 #define BINARYLOG_PREPARE_V2 64 | |
| 127 #define BINARYLOG_STEP 65 | |
| 128 #define BINARYLOG_FINALIZE 66 | |
| 129 | |
| 130 struct InstVfs { | |
| 131 sqlite3_vfs base; | |
| 132 sqlite3_vfs *pVfs; | |
| 133 | |
| 134 void *pClient; | |
| 135 void (*xDel)(void *); | |
| 136 void (*xCall)(void *, int, int, sqlite3_int64, int, const char *, int, int, sq
lite3_int64); | |
| 137 | |
| 138 /* Counters */ | |
| 139 sqlite3_int64 aTime[OS_NUMEVENTS]; | |
| 140 int aCount[OS_NUMEVENTS]; | |
| 141 | |
| 142 int iNextFileId; | |
| 143 }; | |
| 144 typedef struct InstVfs InstVfs; | |
| 145 | |
| 146 #define REALVFS(p) (((InstVfs *)(p))->pVfs) | |
| 147 | |
| 148 typedef struct inst_file inst_file; | |
| 149 struct inst_file { | |
| 150 sqlite3_file base; | |
| 151 sqlite3_file *pReal; | |
| 152 InstVfs *pInstVfs; | |
| 153 const char *zName; | |
| 154 int iFileId; /* File id number */ | |
| 155 int flags; | |
| 156 }; | |
| 157 | |
| 158 /* | |
| 159 ** Method declarations for inst_file. | |
| 160 */ | |
| 161 static int instClose(sqlite3_file*); | |
| 162 static int instRead(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst); | |
| 163 static int instWrite(sqlite3_file*,const void*,int iAmt, sqlite3_int64 iOfst); | |
| 164 static int instTruncate(sqlite3_file*, sqlite3_int64 size); | |
| 165 static int instSync(sqlite3_file*, int flags); | |
| 166 static int instFileSize(sqlite3_file*, sqlite3_int64 *pSize); | |
| 167 static int instLock(sqlite3_file*, int); | |
| 168 static int instUnlock(sqlite3_file*, int); | |
| 169 static int instCheckReservedLock(sqlite3_file*, int *pResOut); | |
| 170 static int instFileControl(sqlite3_file*, int op, void *pArg); | |
| 171 static int instSectorSize(sqlite3_file*); | |
| 172 static int instDeviceCharacteristics(sqlite3_file*); | |
| 173 | |
| 174 /* | |
| 175 ** Method declarations for inst_vfs. | |
| 176 */ | |
| 177 static int instOpen(sqlite3_vfs*, const char *, sqlite3_file*, int , int *); | |
| 178 static int instDelete(sqlite3_vfs*, const char *zName, int syncDir); | |
| 179 static int instAccess(sqlite3_vfs*, const char *zName, int flags, int *); | |
| 180 static int instFullPathname(sqlite3_vfs*, const char *zName, int, char *zOut); | |
| 181 static void *instDlOpen(sqlite3_vfs*, const char *zFilename); | |
| 182 static void instDlError(sqlite3_vfs*, int nByte, char *zErrMsg); | |
| 183 static void (*instDlSym(sqlite3_vfs *pVfs, void *p, const char*zSym))(void); | |
| 184 static void instDlClose(sqlite3_vfs*, void*); | |
| 185 static int instRandomness(sqlite3_vfs*, int nByte, char *zOut); | |
| 186 static int instSleep(sqlite3_vfs*, int microseconds); | |
| 187 static int instCurrentTime(sqlite3_vfs*, double*); | |
| 188 | |
| 189 static void binarylog_blob(sqlite3_vfs *, const char *, int, int); | |
| 190 | |
| 191 static sqlite3_vfs inst_vfs = { | |
| 192 1, /* iVersion */ | |
| 193 sizeof(inst_file), /* szOsFile */ | |
| 194 INST_MAX_PATHNAME, /* mxPathname */ | |
| 195 0, /* pNext */ | |
| 196 0, /* zName */ | |
| 197 0, /* pAppData */ | |
| 198 instOpen, /* xOpen */ | |
| 199 instDelete, /* xDelete */ | |
| 200 instAccess, /* xAccess */ | |
| 201 instFullPathname, /* xFullPathname */ | |
| 202 instDlOpen, /* xDlOpen */ | |
| 203 instDlError, /* xDlError */ | |
| 204 instDlSym, /* xDlSym */ | |
| 205 instDlClose, /* xDlClose */ | |
| 206 instRandomness, /* xRandomness */ | |
| 207 instSleep, /* xSleep */ | |
| 208 instCurrentTime /* xCurrentTime */ | |
| 209 }; | |
| 210 | |
| 211 static sqlite3_io_methods inst_io_methods = { | |
| 212 1, /* iVersion */ | |
| 213 instClose, /* xClose */ | |
| 214 instRead, /* xRead */ | |
| 215 instWrite, /* xWrite */ | |
| 216 instTruncate, /* xTruncate */ | |
| 217 instSync, /* xSync */ | |
| 218 instFileSize, /* xFileSize */ | |
| 219 instLock, /* xLock */ | |
| 220 instUnlock, /* xUnlock */ | |
| 221 instCheckReservedLock, /* xCheckReservedLock */ | |
| 222 instFileControl, /* xFileControl */ | |
| 223 instSectorSize, /* xSectorSize */ | |
| 224 instDeviceCharacteristics /* xDeviceCharacteristics */ | |
| 225 }; | |
| 226 | |
| 227 /* | |
| 228 ** hwtime.h contains inline assembler code for implementing | |
| 229 ** high-performance timing routines. | |
| 230 */ | |
| 231 #include "hwtime.h" | |
| 232 | |
| 233 #define OS_TIME_IO(eEvent, A, B, Call) { \ | |
| 234 inst_file *p = (inst_file *)pFile; \ | |
| 235 InstVfs *pInstVfs = p->pInstVfs; \ | |
| 236 int rc; \ | |
| 237 sqlite_uint64 t = sqlite3Hwtime(); \ | |
| 238 rc = Call; \ | |
| 239 t = sqlite3Hwtime() - t; \ | |
| 240 pInstVfs->aTime[eEvent] += t; \ | |
| 241 pInstVfs->aCount[eEvent] += 1; \ | |
| 242 if( pInstVfs->xCall ){ \ | |
| 243 pInstVfs->xCall( \ | |
| 244 pInstVfs->pClient,eEvent,p->iFileId,t,rc,p->zName,p->flags,A,B \ | |
| 245 ); \ | |
| 246 } \ | |
| 247 return rc; \ | |
| 248 } | |
| 249 | |
| 250 #define OS_TIME_VFS(eEvent, Z, flags, A, B, Call) { \ | |
| 251 InstVfs *pInstVfs = (InstVfs *)pVfs; \ | |
| 252 int rc; \ | |
| 253 sqlite_uint64 t = sqlite3Hwtime(); \ | |
| 254 rc = Call; \ | |
| 255 t = sqlite3Hwtime() - t; \ | |
| 256 pInstVfs->aTime[eEvent] += t; \ | |
| 257 pInstVfs->aCount[eEvent] += 1; \ | |
| 258 if( pInstVfs->xCall ){ \ | |
| 259 pInstVfs->xCall(pInstVfs->pClient,eEvent,0, t, rc, Z, flags, A, B); \ | |
| 260 } \ | |
| 261 return rc; \ | |
| 262 } | |
| 263 | |
| 264 /* | |
| 265 ** Close an inst-file. | |
| 266 */ | |
| 267 static int instClose(sqlite3_file *pFile){ | |
| 268 OS_TIME_IO(OS_CLOSE, 0, 0, | |
| 269 (p->pReal->pMethods ? p->pReal->pMethods->xClose(p->pReal) : SQLITE_OK) | |
| 270 ); | |
| 271 } | |
| 272 | |
| 273 /* | |
| 274 ** Read data from an inst-file. | |
| 275 */ | |
| 276 static int instRead( | |
| 277 sqlite3_file *pFile, | |
| 278 void *zBuf, | |
| 279 int iAmt, | |
| 280 sqlite_int64 iOfst | |
| 281 ){ | |
| 282 sqlite3_vfs *pVfs = (sqlite3_vfs *)(((inst_file *)pFile)->pInstVfs); | |
| 283 OS_TIME_IO(OS_READ, iAmt, (binarylog_blob(pVfs, zBuf, iAmt, 1), iOfst), | |
| 284 p->pReal->pMethods->xRead(p->pReal, zBuf, iAmt, iOfst) | |
| 285 ); | |
| 286 } | |
| 287 | |
| 288 /* | |
| 289 ** Write data to an inst-file. | |
| 290 */ | |
| 291 static int instWrite( | |
| 292 sqlite3_file *pFile, | |
| 293 const void *z, | |
| 294 int iAmt, | |
| 295 sqlite_int64 iOfst | |
| 296 ){ | |
| 297 sqlite3_vfs *pVfs = (sqlite3_vfs *)(((inst_file *)pFile)->pInstVfs); | |
| 298 binarylog_blob(pVfs, z, iAmt, 1); | |
| 299 OS_TIME_IO(OS_WRITE, iAmt, iOfst, | |
| 300 p->pReal->pMethods->xWrite(p->pReal, z, iAmt, iOfst) | |
| 301 ); | |
| 302 } | |
| 303 | |
| 304 /* | |
| 305 ** Truncate an inst-file. | |
| 306 */ | |
| 307 static int instTruncate(sqlite3_file *pFile, sqlite_int64 size){ | |
| 308 OS_TIME_IO(OS_TRUNCATE, 0, (int)size, | |
| 309 p->pReal->pMethods->xTruncate(p->pReal, size) | |
| 310 ); | |
| 311 } | |
| 312 | |
| 313 /* | |
| 314 ** Sync an inst-file. | |
| 315 */ | |
| 316 static int instSync(sqlite3_file *pFile, int flags){ | |
| 317 OS_TIME_IO(OS_SYNC, flags, 0, p->pReal->pMethods->xSync(p->pReal, flags)); | |
| 318 } | |
| 319 | |
| 320 /* | |
| 321 ** Return the current file-size of an inst-file. | |
| 322 */ | |
| 323 static int instFileSize(sqlite3_file *pFile, sqlite_int64 *pSize){ | |
| 324 OS_TIME_IO(OS_FILESIZE, (int)(*pSize), 0, | |
| 325 p->pReal->pMethods->xFileSize(p->pReal, pSize) | |
| 326 ); | |
| 327 } | |
| 328 | |
| 329 /* | |
| 330 ** Lock an inst-file. | |
| 331 */ | |
| 332 static int instLock(sqlite3_file *pFile, int eLock){ | |
| 333 OS_TIME_IO(OS_LOCK, eLock, 0, p->pReal->pMethods->xLock(p->pReal, eLock)); | |
| 334 } | |
| 335 | |
| 336 /* | |
| 337 ** Unlock an inst-file. | |
| 338 */ | |
| 339 static int instUnlock(sqlite3_file *pFile, int eLock){ | |
| 340 OS_TIME_IO(OS_UNLOCK, eLock, 0, p->pReal->pMethods->xUnlock(p->pReal, eLock)); | |
| 341 } | |
| 342 | |
| 343 /* | |
| 344 ** Check if another file-handle holds a RESERVED lock on an inst-file. | |
| 345 */ | |
| 346 static int instCheckReservedLock(sqlite3_file *pFile, int *pResOut){ | |
| 347 OS_TIME_IO(OS_CHECKRESERVEDLOCK, 0, 0, | |
| 348 p->pReal->pMethods->xCheckReservedLock(p->pReal, pResOut) | |
| 349 ); | |
| 350 } | |
| 351 | |
| 352 /* | |
| 353 ** File control method. For custom operations on an inst-file. | |
| 354 */ | |
| 355 static int instFileControl(sqlite3_file *pFile, int op, void *pArg){ | |
| 356 OS_TIME_IO(OS_FILECONTROL, 0, 0, p->pReal->pMethods->xFileControl(p->pReal, op
, pArg)); | |
| 357 } | |
| 358 | |
| 359 /* | |
| 360 ** Return the sector-size in bytes for an inst-file. | |
| 361 */ | |
| 362 static int instSectorSize(sqlite3_file *pFile){ | |
| 363 OS_TIME_IO(OS_SECTORSIZE, 0, 0, p->pReal->pMethods->xSectorSize(p->pReal)); | |
| 364 } | |
| 365 | |
| 366 /* | |
| 367 ** Return the device characteristic flags supported by an inst-file. | |
| 368 */ | |
| 369 static int instDeviceCharacteristics(sqlite3_file *pFile){ | |
| 370 OS_TIME_IO(OS_DEVCHAR, 0, 0, p->pReal->pMethods->xDeviceCharacteristics(p->pRe
al)); | |
| 371 } | |
| 372 | |
| 373 /* | |
| 374 ** Open an inst file handle. | |
| 375 */ | |
| 376 static int instOpen( | |
| 377 sqlite3_vfs *pVfs, | |
| 378 const char *zName, | |
| 379 sqlite3_file *pFile, | |
| 380 int flags, | |
| 381 int *pOutFlags | |
| 382 ){ | |
| 383 inst_file *p = (inst_file *)pFile; | |
| 384 pFile->pMethods = &inst_io_methods; | |
| 385 p->pReal = (sqlite3_file *)&p[1]; | |
| 386 p->pInstVfs = (InstVfs *)pVfs; | |
| 387 p->zName = zName; | |
| 388 p->flags = flags; | |
| 389 p->iFileId = ++p->pInstVfs->iNextFileId; | |
| 390 | |
| 391 binarylog_blob(pVfs, zName, -1, 0); | |
| 392 OS_TIME_VFS(OS_OPEN, zName, flags, p->iFileId, 0, | |
| 393 REALVFS(pVfs)->xOpen(REALVFS(pVfs), zName, p->pReal, flags, pOutFlags) | |
| 394 ); | |
| 395 } | |
| 396 | |
| 397 /* | |
| 398 ** Delete the file located at zPath. If the dirSync argument is true, | |
| 399 ** ensure the file-system modifications are synced to disk before | |
| 400 ** returning. | |
| 401 */ | |
| 402 static int instDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){ | |
| 403 binarylog_blob(pVfs, zPath, -1, 0); | |
| 404 OS_TIME_VFS(OS_DELETE, zPath, 0, dirSync, 0, | |
| 405 REALVFS(pVfs)->xDelete(REALVFS(pVfs), zPath, dirSync) | |
| 406 ); | |
| 407 } | |
| 408 | |
| 409 /* | |
| 410 ** Test for access permissions. Return true if the requested permission | |
| 411 ** is available, or false otherwise. | |
| 412 */ | |
| 413 static int instAccess( | |
| 414 sqlite3_vfs *pVfs, | |
| 415 const char *zPath, | |
| 416 int flags, | |
| 417 int *pResOut | |
| 418 ){ | |
| 419 binarylog_blob(pVfs, zPath, -1, 0); | |
| 420 OS_TIME_VFS(OS_ACCESS, zPath, 0, flags, *pResOut, | |
| 421 REALVFS(pVfs)->xAccess(REALVFS(pVfs), zPath, flags, pResOut) | |
| 422 ); | |
| 423 } | |
| 424 | |
| 425 /* | |
| 426 ** Populate buffer zOut with the full canonical pathname corresponding | |
| 427 ** to the pathname in zPath. zOut is guaranteed to point to a buffer | |
| 428 ** of at least (INST_MAX_PATHNAME+1) bytes. | |
| 429 */ | |
| 430 static int instFullPathname( | |
| 431 sqlite3_vfs *pVfs, | |
| 432 const char *zPath, | |
| 433 int nOut, | |
| 434 char *zOut | |
| 435 ){ | |
| 436 OS_TIME_VFS( OS_FULLPATHNAME, zPath, 0, 0, 0, | |
| 437 REALVFS(pVfs)->xFullPathname(REALVFS(pVfs), zPath, nOut, zOut); | |
| 438 ); | |
| 439 } | |
| 440 | |
| 441 /* | |
| 442 ** Open the dynamic library located at zPath and return a handle. | |
| 443 */ | |
| 444 static void *instDlOpen(sqlite3_vfs *pVfs, const char *zPath){ | |
| 445 return REALVFS(pVfs)->xDlOpen(REALVFS(pVfs), zPath); | |
| 446 } | |
| 447 | |
| 448 /* | |
| 449 ** Populate the buffer zErrMsg (size nByte bytes) with a human readable | |
| 450 ** utf-8 string describing the most recent error encountered associated | |
| 451 ** with dynamic libraries. | |
| 452 */ | |
| 453 static void instDlError(sqlite3_vfs *pVfs, int nByte, char *zErrMsg){ | |
| 454 REALVFS(pVfs)->xDlError(REALVFS(pVfs), nByte, zErrMsg); | |
| 455 } | |
| 456 | |
| 457 /* | |
| 458 ** Return a pointer to the symbol zSymbol in the dynamic library pHandle. | |
| 459 */ | |
| 460 static void (*instDlSym(sqlite3_vfs *pVfs, void *p, const char *zSym))(void){ | |
| 461 return REALVFS(pVfs)->xDlSym(REALVFS(pVfs), p, zSym); | |
| 462 } | |
| 463 | |
| 464 /* | |
| 465 ** Close the dynamic library handle pHandle. | |
| 466 */ | |
| 467 static void instDlClose(sqlite3_vfs *pVfs, void *pHandle){ | |
| 468 REALVFS(pVfs)->xDlClose(REALVFS(pVfs), pHandle); | |
| 469 } | |
| 470 | |
| 471 /* | |
| 472 ** Populate the buffer pointed to by zBufOut with nByte bytes of | |
| 473 ** random data. | |
| 474 */ | |
| 475 static int instRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){ | |
| 476 OS_TIME_VFS( OS_RANDOMNESS, 0, 0, nByte, 0, | |
| 477 REALVFS(pVfs)->xRandomness(REALVFS(pVfs), nByte, zBufOut); | |
| 478 ); | |
| 479 } | |
| 480 | |
| 481 /* | |
| 482 ** Sleep for nMicro microseconds. Return the number of microseconds | |
| 483 ** actually slept. | |
| 484 */ | |
| 485 static int instSleep(sqlite3_vfs *pVfs, int nMicro){ | |
| 486 OS_TIME_VFS( OS_SLEEP, 0, 0, nMicro, 0, | |
| 487 REALVFS(pVfs)->xSleep(REALVFS(pVfs), nMicro) | |
| 488 ); | |
| 489 } | |
| 490 | |
| 491 /* | |
| 492 ** Return the current time as a Julian Day number in *pTimeOut. | |
| 493 */ | |
| 494 static int instCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){ | |
| 495 OS_TIME_VFS( OS_CURRENTTIME, 0, 0, 0, 0, | |
| 496 REALVFS(pVfs)->xCurrentTime(REALVFS(pVfs), pTimeOut) | |
| 497 ); | |
| 498 } | |
| 499 | |
| 500 sqlite3_vfs *sqlite3_instvfs_create(const char *zName, const char *zParent){ | |
| 501 int nByte; | |
| 502 InstVfs *p; | |
| 503 sqlite3_vfs *pParent; | |
| 504 | |
| 505 pParent = sqlite3_vfs_find(zParent); | |
| 506 if( !pParent ){ | |
| 507 return 0; | |
| 508 } | |
| 509 | |
| 510 nByte = strlen(zName) + 1 + sizeof(InstVfs); | |
| 511 p = (InstVfs *)sqlite3_malloc(nByte); | |
| 512 if( p ){ | |
| 513 char *zCopy = (char *)&p[1]; | |
| 514 memset(p, 0, nByte); | |
| 515 memcpy(p, &inst_vfs, sizeof(sqlite3_vfs)); | |
| 516 p->pVfs = pParent; | |
| 517 memcpy(zCopy, zName, strlen(zName)); | |
| 518 p->base.zName = (const char *)zCopy; | |
| 519 p->base.szOsFile += pParent->szOsFile; | |
| 520 sqlite3_vfs_register((sqlite3_vfs *)p, 0); | |
| 521 } | |
| 522 | |
| 523 return (sqlite3_vfs *)p; | |
| 524 } | |
| 525 | |
| 526 void sqlite3_instvfs_configure( | |
| 527 sqlite3_vfs *pVfs, | |
| 528 void (*xCall)( | |
| 529 void*, | |
| 530 int, /* File id */ | |
| 531 int, /* Event code */ | |
| 532 sqlite3_int64, | |
| 533 int, /* Return code */ | |
| 534 const char*, /* File name */ | |
| 535 int, | |
| 536 int, | |
| 537 sqlite3_int64 | |
| 538 ), | |
| 539 void *pClient, | |
| 540 void (*xDel)(void *) | |
| 541 ){ | |
| 542 InstVfs *p = (InstVfs *)pVfs; | |
| 543 assert( pVfs->xOpen==instOpen ); | |
| 544 if( p->xDel ){ | |
| 545 p->xDel(p->pClient); | |
| 546 } | |
| 547 p->xCall = xCall; | |
| 548 p->xDel = xDel; | |
| 549 p->pClient = pClient; | |
| 550 } | |
| 551 | |
| 552 void sqlite3_instvfs_destroy(sqlite3_vfs *pVfs){ | |
| 553 if( pVfs ){ | |
| 554 sqlite3_vfs_unregister(pVfs); | |
| 555 sqlite3_instvfs_configure(pVfs, 0, 0, 0); | |
| 556 sqlite3_free(pVfs); | |
| 557 } | |
| 558 } | |
| 559 | |
| 560 void sqlite3_instvfs_reset(sqlite3_vfs *pVfs){ | |
| 561 InstVfs *p = (InstVfs *)pVfs; | |
| 562 assert( pVfs->xOpen==instOpen ); | |
| 563 memset(p->aTime, 0, sizeof(sqlite3_int64)*OS_NUMEVENTS); | |
| 564 memset(p->aCount, 0, sizeof(int)*OS_NUMEVENTS); | |
| 565 } | |
| 566 | |
| 567 const char *sqlite3_instvfs_name(int eEvent){ | |
| 568 const char *zEvent = 0; | |
| 569 | |
| 570 switch( eEvent ){ | |
| 571 case OS_CLOSE: zEvent = "xClose"; break; | |
| 572 case OS_READ: zEvent = "xRead"; break; | |
| 573 case OS_WRITE: zEvent = "xWrite"; break; | |
| 574 case OS_TRUNCATE: zEvent = "xTruncate"; break; | |
| 575 case OS_SYNC: zEvent = "xSync"; break; | |
| 576 case OS_FILESIZE: zEvent = "xFilesize"; break; | |
| 577 case OS_LOCK: zEvent = "xLock"; break; | |
| 578 case OS_UNLOCK: zEvent = "xUnlock"; break; | |
| 579 case OS_CHECKRESERVEDLOCK: zEvent = "xCheckReservedLock"; break; | |
| 580 case OS_FILECONTROL: zEvent = "xFileControl"; break; | |
| 581 case OS_SECTORSIZE: zEvent = "xSectorSize"; break; | |
| 582 case OS_DEVCHAR: zEvent = "xDeviceCharacteristics"; break; | |
| 583 case OS_OPEN: zEvent = "xOpen"; break; | |
| 584 case OS_DELETE: zEvent = "xDelete"; break; | |
| 585 case OS_ACCESS: zEvent = "xAccess"; break; | |
| 586 case OS_FULLPATHNAME: zEvent = "xFullPathname"; break; | |
| 587 case OS_RANDOMNESS: zEvent = "xRandomness"; break; | |
| 588 case OS_SLEEP: zEvent = "xSleep"; break; | |
| 589 case OS_CURRENTTIME: zEvent = "xCurrentTime"; break; | |
| 590 } | |
| 591 | |
| 592 return zEvent; | |
| 593 } | |
| 594 | |
| 595 void sqlite3_instvfs_get( | |
| 596 sqlite3_vfs *pVfs, | |
| 597 int eEvent, | |
| 598 const char **pzEvent, | |
| 599 sqlite3_int64 *pnClick, | |
| 600 int *pnCall | |
| 601 ){ | |
| 602 InstVfs *p = (InstVfs *)pVfs; | |
| 603 assert( pVfs->xOpen==instOpen ); | |
| 604 if( eEvent<1 || eEvent>=OS_NUMEVENTS ){ | |
| 605 *pzEvent = 0; | |
| 606 *pnClick = 0; | |
| 607 *pnCall = 0; | |
| 608 return; | |
| 609 } | |
| 610 | |
| 611 *pzEvent = sqlite3_instvfs_name(eEvent); | |
| 612 *pnClick = p->aTime[eEvent]; | |
| 613 *pnCall = p->aCount[eEvent]; | |
| 614 } | |
| 615 | |
| 616 #define BINARYLOG_BUFFERSIZE 8192 | |
| 617 | |
| 618 struct InstVfsBinaryLog { | |
| 619 int nBuf; | |
| 620 char *zBuf; | |
| 621 sqlite3_int64 iOffset; | |
| 622 int log_data; | |
| 623 sqlite3_file *pOut; | |
| 624 char *zOut; /* Log file name */ | |
| 625 }; | |
| 626 typedef struct InstVfsBinaryLog InstVfsBinaryLog; | |
| 627 | |
| 628 static void put32bits(unsigned char *p, unsigned int v){ | |
| 629 p[0] = v>>24; | |
| 630 p[1] = v>>16; | |
| 631 p[2] = v>>8; | |
| 632 p[3] = v; | |
| 633 } | |
| 634 | |
| 635 static void binarylog_flush(InstVfsBinaryLog *pLog){ | |
| 636 sqlite3_file *pFile = pLog->pOut; | |
| 637 | |
| 638 #ifdef SQLITE_TEST | |
| 639 extern int sqlite3_io_error_pending; | |
| 640 extern int sqlite3_io_error_persist; | |
| 641 extern int sqlite3_diskfull_pending; | |
| 642 | |
| 643 int pending = sqlite3_io_error_pending; | |
| 644 int persist = sqlite3_io_error_persist; | |
| 645 int diskfull = sqlite3_diskfull_pending; | |
| 646 | |
| 647 sqlite3_io_error_pending = 0; | |
| 648 sqlite3_io_error_persist = 0; | |
| 649 sqlite3_diskfull_pending = 0; | |
| 650 #endif | |
| 651 | |
| 652 pFile->pMethods->xWrite(pFile, pLog->zBuf, pLog->nBuf, pLog->iOffset); | |
| 653 pLog->iOffset += pLog->nBuf; | |
| 654 pLog->nBuf = 0; | |
| 655 | |
| 656 #ifdef SQLITE_TEST | |
| 657 sqlite3_io_error_pending = pending; | |
| 658 sqlite3_io_error_persist = persist; | |
| 659 sqlite3_diskfull_pending = diskfull; | |
| 660 #endif | |
| 661 } | |
| 662 | |
| 663 static void binarylog_xcall( | |
| 664 void *p, | |
| 665 int eEvent, | |
| 666 int iFileId, | |
| 667 sqlite3_int64 nClick, | |
| 668 int return_code, | |
| 669 const char *zName, | |
| 670 int flags, | |
| 671 int nByte, | |
| 672 sqlite3_int64 iOffset | |
| 673 ){ | |
| 674 InstVfsBinaryLog *pLog = (InstVfsBinaryLog *)p; | |
| 675 unsigned char *zRec; | |
| 676 if( (28+pLog->nBuf)>BINARYLOG_BUFFERSIZE ){ | |
| 677 binarylog_flush(pLog); | |
| 678 } | |
| 679 zRec = (unsigned char *)&pLog->zBuf[pLog->nBuf]; | |
| 680 put32bits(&zRec[0], eEvent); | |
| 681 put32bits(&zRec[4], (int)iFileId); | |
| 682 put32bits(&zRec[8], (int)nClick); | |
| 683 put32bits(&zRec[12], return_code); | |
| 684 put32bits(&zRec[16], flags); | |
| 685 put32bits(&zRec[20], nByte); | |
| 686 put32bits(&zRec[24], (int)iOffset); | |
| 687 pLog->nBuf += 28; | |
| 688 } | |
| 689 | |
| 690 static void binarylog_xdel(void *p){ | |
| 691 /* Close the log file and free the memory allocated for the | |
| 692 ** InstVfsBinaryLog structure. | |
| 693 */ | |
| 694 InstVfsBinaryLog *pLog = (InstVfsBinaryLog *)p; | |
| 695 sqlite3_file *pFile = pLog->pOut; | |
| 696 if( pLog->nBuf ){ | |
| 697 binarylog_flush(pLog); | |
| 698 } | |
| 699 pFile->pMethods->xClose(pFile); | |
| 700 sqlite3_free(pLog->pOut); | |
| 701 sqlite3_free(pLog->zBuf); | |
| 702 sqlite3_free(pLog); | |
| 703 } | |
| 704 | |
| 705 static void binarylog_blob( | |
| 706 sqlite3_vfs *pVfs, | |
| 707 const char *zBlob, | |
| 708 int nBlob, | |
| 709 int isBinary | |
| 710 ){ | |
| 711 InstVfsBinaryLog *pLog; | |
| 712 InstVfs *pInstVfs = (InstVfs *)pVfs; | |
| 713 | |
| 714 if( pVfs->xOpen!=instOpen || pInstVfs->xCall!=binarylog_xcall ){ | |
| 715 return; | |
| 716 } | |
| 717 pLog = (InstVfsBinaryLog *)pInstVfs->pClient; | |
| 718 if( zBlob && (!isBinary || pLog->log_data) ){ | |
| 719 unsigned char *zRec; | |
| 720 int nWrite; | |
| 721 | |
| 722 if( nBlob<0 ){ | |
| 723 nBlob = strlen(zBlob); | |
| 724 } | |
| 725 nWrite = nBlob + 28; | |
| 726 | |
| 727 if( (nWrite+pLog->nBuf)>BINARYLOG_BUFFERSIZE ){ | |
| 728 binarylog_flush(pLog); | |
| 729 } | |
| 730 | |
| 731 zRec = (unsigned char *)&pLog->zBuf[pLog->nBuf]; | |
| 732 memset(zRec, 0, nWrite); | |
| 733 put32bits(&zRec[0], BINARYLOG_STRING); | |
| 734 put32bits(&zRec[4], (int)nBlob); | |
| 735 put32bits(&zRec[8], (int)isBinary); | |
| 736 memcpy(&zRec[28], zBlob, nBlob); | |
| 737 pLog->nBuf += nWrite; | |
| 738 } | |
| 739 } | |
| 740 | |
| 741 void sqlite3_instvfs_binarylog_call( | |
| 742 sqlite3_vfs *pVfs, | |
| 743 int eEvent, | |
| 744 sqlite3_int64 nClick, | |
| 745 int return_code, | |
| 746 const char *zString | |
| 747 ){ | |
| 748 InstVfs *pInstVfs = (InstVfs *)pVfs; | |
| 749 InstVfsBinaryLog *pLog = (InstVfsBinaryLog *)pInstVfs->pClient; | |
| 750 | |
| 751 if( zString ){ | |
| 752 binarylog_blob(pVfs, zString, -1, 0); | |
| 753 } | |
| 754 binarylog_xcall(pLog, eEvent, 0, nClick, return_code, 0, 0, 0, 0); | |
| 755 } | |
| 756 | |
| 757 void sqlite3_instvfs_binarylog_marker( | |
| 758 sqlite3_vfs *pVfs, | |
| 759 const char *zMarker | |
| 760 ){ | |
| 761 InstVfs *pInstVfs = (InstVfs *)pVfs; | |
| 762 InstVfsBinaryLog *pLog = (InstVfsBinaryLog *)pInstVfs->pClient; | |
| 763 binarylog_blob(pVfs, zMarker, -1, 0); | |
| 764 binarylog_xcall(pLog, BINARYLOG_MARKER, 0, 0, 0, 0, 0, 0, 0); | |
| 765 } | |
| 766 | |
| 767 sqlite3_vfs *sqlite3_instvfs_binarylog( | |
| 768 const char *zVfs, | |
| 769 const char *zParentVfs, | |
| 770 const char *zLog, | |
| 771 int log_data | |
| 772 ){ | |
| 773 InstVfsBinaryLog *p; | |
| 774 sqlite3_vfs *pVfs; | |
| 775 sqlite3_vfs *pParent; | |
| 776 int nByte; | |
| 777 int flags; | |
| 778 int rc; | |
| 779 | |
| 780 pParent = sqlite3_vfs_find(zParentVfs); | |
| 781 if( !pParent ){ | |
| 782 return 0; | |
| 783 } | |
| 784 | |
| 785 nByte = sizeof(InstVfsBinaryLog) + pParent->mxPathname+1; | |
| 786 p = (InstVfsBinaryLog *)sqlite3_malloc(nByte); | |
| 787 memset(p, 0, nByte); | |
| 788 p->zBuf = sqlite3_malloc(BINARYLOG_BUFFERSIZE); | |
| 789 p->zOut = (char *)&p[1]; | |
| 790 p->pOut = (sqlite3_file *)sqlite3_malloc(pParent->szOsFile); | |
| 791 p->log_data = log_data; | |
| 792 pParent->xFullPathname(pParent, zLog, pParent->mxPathname, p->zOut); | |
| 793 flags = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_MASTER_JOURNAL; | |
| 794 pParent->xDelete(pParent, p->zOut, 0); | |
| 795 rc = pParent->xOpen(pParent, p->zOut, p->pOut, flags, &flags); | |
| 796 if( rc==SQLITE_OK ){ | |
| 797 memcpy(p->zBuf, "sqlite_ostrace1.....", 20); | |
| 798 p->iOffset = 0; | |
| 799 p->nBuf = 20; | |
| 800 } | |
| 801 if( rc ){ | |
| 802 binarylog_xdel(p); | |
| 803 return 0; | |
| 804 } | |
| 805 | |
| 806 pVfs = sqlite3_instvfs_create(zVfs, zParentVfs); | |
| 807 if( pVfs ){ | |
| 808 sqlite3_instvfs_configure(pVfs, binarylog_xcall, p, binarylog_xdel); | |
| 809 } | |
| 810 | |
| 811 return pVfs; | |
| 812 } | |
| 813 #endif /* SQLITE_ENABLE_INSTVFS */ | |
| 814 | |
| 815 /************************************************************************** | |
| 816 *************************************************************************** | |
| 817 ** Tcl interface starts here. | |
| 818 */ | |
| 819 #if SQLITE_TEST | |
| 820 | |
| 821 #include <tcl.h> | |
| 822 | |
| 823 #ifdef SQLITE_ENABLE_INSTVFS | |
| 824 struct InstVfsCall { | |
| 825 Tcl_Interp *interp; | |
| 826 Tcl_Obj *pScript; | |
| 827 }; | |
| 828 typedef struct InstVfsCall InstVfsCall; | |
| 829 | |
| 830 static void test_instvfs_xcall( | |
| 831 void *p, | |
| 832 int eEvent, | |
| 833 int iFileId, | |
| 834 sqlite3_int64 nClick, | |
| 835 int return_code, | |
| 836 const char *zName, | |
| 837 int flags, | |
| 838 int nByte, | |
| 839 sqlite3_int64 iOffset | |
| 840 ){ | |
| 841 int rc; | |
| 842 InstVfsCall *pCall = (InstVfsCall *)p; | |
| 843 Tcl_Obj *pObj = Tcl_DuplicateObj( pCall->pScript); | |
| 844 const char *zEvent = sqlite3_instvfs_name(eEvent); | |
| 845 | |
| 846 Tcl_IncrRefCount(pObj); | |
| 847 Tcl_ListObjAppendElement(0, pObj, Tcl_NewStringObj(zEvent, -1)); | |
| 848 Tcl_ListObjAppendElement(0, pObj, Tcl_NewWideIntObj(nClick)); | |
| 849 Tcl_ListObjAppendElement(0, pObj, Tcl_NewStringObj(zName, -1)); | |
| 850 Tcl_ListObjAppendElement(0, pObj, Tcl_NewIntObj(nByte)); | |
| 851 Tcl_ListObjAppendElement(0, pObj, Tcl_NewWideIntObj(iOffset)); | |
| 852 | |
| 853 rc = Tcl_EvalObjEx(pCall->interp, pObj, TCL_EVAL_GLOBAL|TCL_EVAL_DIRECT); | |
| 854 if( rc ){ | |
| 855 Tcl_BackgroundError(pCall->interp); | |
| 856 } | |
| 857 Tcl_DecrRefCount(pObj); | |
| 858 } | |
| 859 | |
| 860 static void test_instvfs_xdel(void *p){ | |
| 861 InstVfsCall *pCall = (InstVfsCall *)p; | |
| 862 Tcl_DecrRefCount(pCall->pScript); | |
| 863 sqlite3_free(pCall); | |
| 864 } | |
| 865 | |
| 866 static int test_sqlite3_instvfs( | |
| 867 void * clientData, | |
| 868 Tcl_Interp *interp, | |
| 869 int objc, | |
| 870 Tcl_Obj *CONST objv[] | |
| 871 ){ | |
| 872 static const char *IV_strs[] = | |
| 873 { "create", "destroy", "reset", "report", "configure", "binary
log", "marker", 0 }; | |
| 874 enum IV_enum { IV_CREATE, IV_DESTROY, IV_RESET, IV_REPORT, IV_CONFIGURE, IV_BI
NARYLOG, IV_MARKER }; | |
| 875 int iSub; | |
| 876 | |
| 877 if( objc<2 ){ | |
| 878 Tcl_WrongNumArgs(interp, 1, objv, "SUB-COMMAND ..."); | |
| 879 } | |
| 880 if( Tcl_GetIndexFromObj(interp, objv[1], IV_strs, "sub-command", 0, &iSub) ){ | |
| 881 return TCL_ERROR; | |
| 882 } | |
| 883 | |
| 884 switch( (enum IV_enum)iSub ){ | |
| 885 case IV_CREATE: { | |
| 886 char *zParent = 0; | |
| 887 sqlite3_vfs *p; | |
| 888 int isDefault = 0; | |
| 889 if( objc>2 && 0==strcmp("-default", Tcl_GetString(objv[2])) ){ | |
| 890 isDefault = 1; | |
| 891 } | |
| 892 if( (objc-isDefault)!=4 && (objc-isDefault)!=3 ){ | |
| 893 Tcl_WrongNumArgs(interp, 2, objv, "?-default? NAME ?PARENT-VFS?"); | |
| 894 return TCL_ERROR; | |
| 895 } | |
| 896 if( objc==(4+isDefault) ){ | |
| 897 zParent = Tcl_GetString(objv[3+isDefault]); | |
| 898 } | |
| 899 p = sqlite3_instvfs_create(Tcl_GetString(objv[2+isDefault]), zParent); | |
| 900 if( !p ){ | |
| 901 Tcl_AppendResult(interp, "error creating vfs ", 0); | |
| 902 return TCL_ERROR; | |
| 903 } | |
| 904 if( isDefault ){ | |
| 905 sqlite3_vfs_register(p, 1); | |
| 906 } | |
| 907 Tcl_SetObjResult(interp, objv[2]); | |
| 908 break; | |
| 909 } | |
| 910 case IV_BINARYLOG: { | |
| 911 char *zName = 0; | |
| 912 char *zLog = 0; | |
| 913 char *zParent = 0; | |
| 914 sqlite3_vfs *p; | |
| 915 int isDefault = 0; | |
| 916 int isLogdata = 0; | |
| 917 int argbase = 2; | |
| 918 | |
| 919 for(argbase=2; argbase<(objc-2); argbase++){ | |
| 920 if( 0==strcmp("-default", Tcl_GetString(objv[argbase])) ){ | |
| 921 isDefault = 1; | |
| 922 } | |
| 923 else if( 0==strcmp("-parent", Tcl_GetString(objv[argbase])) ){ | |
| 924 argbase++; | |
| 925 zParent = Tcl_GetString(objv[argbase]); | |
| 926 } | |
| 927 else if( 0==strcmp("-logdata", Tcl_GetString(objv[argbase])) ){ | |
| 928 isLogdata = 1; | |
| 929 }else{ | |
| 930 break; | |
| 931 } | |
| 932 } | |
| 933 | |
| 934 if( (objc-argbase)!=2 ){ | |
| 935 Tcl_WrongNumArgs( | |
| 936 interp, 2, objv, "?-default? ?-parent VFS? ?-logdata? NAME LOGFILE" | |
| 937 ); | |
| 938 return TCL_ERROR; | |
| 939 } | |
| 940 zName = Tcl_GetString(objv[argbase]); | |
| 941 zLog = Tcl_GetString(objv[argbase+1]); | |
| 942 p = sqlite3_instvfs_binarylog(zName, zParent, zLog, isLogdata); | |
| 943 if( !p ){ | |
| 944 Tcl_AppendResult(interp, "error creating vfs ", 0); | |
| 945 return TCL_ERROR; | |
| 946 } | |
| 947 if( isDefault ){ | |
| 948 sqlite3_vfs_register(p, 1); | |
| 949 } | |
| 950 Tcl_SetObjResult(interp, objv[2]); | |
| 951 break; | |
| 952 } | |
| 953 | |
| 954 case IV_MARKER: { | |
| 955 sqlite3_vfs *p; | |
| 956 if( objc!=4 ){ | |
| 957 Tcl_WrongNumArgs(interp, 2, objv, "VFS MARKER"); | |
| 958 return TCL_ERROR; | |
| 959 } | |
| 960 p = sqlite3_vfs_find(Tcl_GetString(objv[2])); | |
| 961 if( !p || p->xOpen!=instOpen ){ | |
| 962 Tcl_AppendResult(interp, "no such vfs: ", Tcl_GetString(objv[2]), 0); | |
| 963 return TCL_ERROR; | |
| 964 } | |
| 965 sqlite3_instvfs_binarylog_marker(p, Tcl_GetString(objv[3])); | |
| 966 Tcl_ResetResult(interp); | |
| 967 break; | |
| 968 } | |
| 969 | |
| 970 case IV_CONFIGURE: { | |
| 971 InstVfsCall *pCall; | |
| 972 | |
| 973 sqlite3_vfs *p; | |
| 974 if( objc!=4 ){ | |
| 975 Tcl_WrongNumArgs(interp, 2, objv, "NAME SCRIPT"); | |
| 976 return TCL_ERROR; | |
| 977 } | |
| 978 p = sqlite3_vfs_find(Tcl_GetString(objv[2])); | |
| 979 if( !p || p->xOpen!=instOpen ){ | |
| 980 Tcl_AppendResult(interp, "no such vfs: ", Tcl_GetString(objv[2]), 0); | |
| 981 return TCL_ERROR; | |
| 982 } | |
| 983 | |
| 984 if( strlen(Tcl_GetString(objv[3])) ){ | |
| 985 pCall = (InstVfsCall *)sqlite3_malloc(sizeof(InstVfsCall)); | |
| 986 pCall->interp = interp; | |
| 987 pCall->pScript = Tcl_DuplicateObj(objv[3]); | |
| 988 Tcl_IncrRefCount(pCall->pScript); | |
| 989 sqlite3_instvfs_configure(p, | |
| 990 test_instvfs_xcall, (void *)pCall, test_instvfs_xdel | |
| 991 ); | |
| 992 }else{ | |
| 993 sqlite3_instvfs_configure(p, 0, 0, 0); | |
| 994 } | |
| 995 break; | |
| 996 } | |
| 997 | |
| 998 case IV_REPORT: | |
| 999 case IV_DESTROY: | |
| 1000 case IV_RESET: { | |
| 1001 sqlite3_vfs *p; | |
| 1002 if( objc!=3 ){ | |
| 1003 Tcl_WrongNumArgs(interp, 2, objv, "NAME"); | |
| 1004 return TCL_ERROR; | |
| 1005 } | |
| 1006 p = sqlite3_vfs_find(Tcl_GetString(objv[2])); | |
| 1007 if( !p || p->xOpen!=instOpen ){ | |
| 1008 Tcl_AppendResult(interp, "no such vfs: ", Tcl_GetString(objv[2]), 0); | |
| 1009 return TCL_ERROR; | |
| 1010 } | |
| 1011 | |
| 1012 if( ((enum IV_enum)iSub)==IV_DESTROY ){ | |
| 1013 sqlite3_instvfs_destroy(p); | |
| 1014 } | |
| 1015 if( ((enum IV_enum)iSub)==IV_RESET ){ | |
| 1016 sqlite3_instvfs_reset(p); | |
| 1017 } | |
| 1018 if( ((enum IV_enum)iSub)==IV_REPORT ){ | |
| 1019 int ii; | |
| 1020 Tcl_Obj *pRet = Tcl_NewObj(); | |
| 1021 | |
| 1022 const char *zName = (char *)1; | |
| 1023 sqlite3_int64 nClick; | |
| 1024 int nCall; | |
| 1025 for(ii=1; zName; ii++){ | |
| 1026 sqlite3_instvfs_get(p, ii, &zName, &nClick, &nCall); | |
| 1027 if( zName ){ | |
| 1028 Tcl_Obj *pElem = Tcl_NewObj(); | |
| 1029 Tcl_ListObjAppendElement(0, pElem, Tcl_NewStringObj(zName, -1)); | |
| 1030 Tcl_ListObjAppendElement(0, pElem, Tcl_NewIntObj(nCall)); | |
| 1031 Tcl_ListObjAppendElement(0, pElem, Tcl_NewWideIntObj(nClick)); | |
| 1032 Tcl_ListObjAppendElement(0, pRet, pElem); | |
| 1033 } | |
| 1034 } | |
| 1035 | |
| 1036 Tcl_SetObjResult(interp, pRet); | |
| 1037 } | |
| 1038 | |
| 1039 break; | |
| 1040 } | |
| 1041 } | |
| 1042 | |
| 1043 return TCL_OK; | |
| 1044 } | |
| 1045 #endif /* SQLITE_ENABLE_INSTVFS */ | |
| 1046 | |
| 1047 /* Alternative implementation of sqlite3_instvfs when the real | |
| 1048 ** implementation is unavailable. | |
| 1049 */ | |
| 1050 #ifndef SQLITE_ENABLE_INSTVFS | |
| 1051 static int test_sqlite3_instvfs( | |
| 1052 void * clientData, | |
| 1053 Tcl_Interp *interp, | |
| 1054 int objc, | |
| 1055 Tcl_Obj *CONST objv[] | |
| 1056 ){ | |
| 1057 Tcl_AppendResult(interp, | |
| 1058 "not compiled with -DSQLITE_ENABLE_INSTVFS; sqlite3_instvfs is " | |
| 1059 "unavailable", (char*)0); | |
| 1060 return TCL_ERROR; | |
| 1061 } | |
| 1062 #endif /* !defined(SQLITE_ENABLE_INSTVFS) */ | |
| 1063 | |
| 1064 int SqlitetestOsinst_Init(Tcl_Interp *interp){ | |
| 1065 Tcl_CreateObjCommand(interp, "sqlite3_instvfs", test_sqlite3_instvfs, 0, 0); | |
| 1066 return TCL_OK; | |
| 1067 } | |
| 1068 | |
| 1069 #endif /* SQLITE_TEST */ | |
| 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/