using System; using System.Diagnostics; using System.Globalization; using System.Text; using i64 = System.Int64; using sqlite3_int64 = System.Int64; using u8 = System.Byte; namespace Community.CsharpSqlite { public partial class Sqlite3 { /* ** 2003 April 6 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** This file contains code used to implement the PRAGMA command. ************************************************************************* ** Included in SQLite3 port to C#-SQLite; 2008 Noah B Hart ** C#-SQLite is an independent reimplementation of the SQLite software library ** ** SQLITE_SOURCE_ID: 2011-06-23 19:49:22 4374b7e83ea0a3fbc3691f9c0c936272862f32f2 ** ************************************************************************* */ //#include "sqliteInt.h" /* ** Interpret the given string as a safety level. Return 0 for OFF, ** 1 for ON or NORMAL and 2 for FULL. Return 1 for an empty or ** unrecognized string argument. ** ** Note that the values returned are one less that the values that ** should be passed into sqlite3BtreeSetSafetyLevel(). The is done ** to support legacy SQL code. The safety level used to be boolean ** and older scripts may have used numbers 0 for OFF and 1 for ON. */ private static u8 getSafetyLevel(string z) { // /* 123456789 123456789 */ string zText = "onoffalseyestruefull"; int[] iOffset = new int[] { 0, 1, 2, 4, 9, 12, 16 }; int[] iLength = new int[] { 2, 2, 3, 5, 3, 4, 4 }; u8[] iValue = new u8[] { 1, 0, 0, 0, 1, 1, 2 }; int i, n; if (sqlite3Isdigit(z[0])) { return (u8)sqlite3Atoi(z); } n = sqlite3Strlen30(z); for (i = 0; i < ArraySize(iLength); i++) { if (iLength[i] == n && sqlite3StrNICmp(zText.Substring(iOffset[i]), z, n) == 0) { return iValue[i]; } } return 1; } /* ** Interpret the given string as a boolean value. */ private static u8 sqlite3GetBoolean(string z) { return (u8)(getSafetyLevel(z) & 1);//return getSafetyLevel(z)&1; } /* The sqlite3GetBoolean() function is used by other modules but the ** remainder of this file is specific to PRAGMA processing. So omit ** the rest of the file if PRAGMAs are omitted from the build. */ #if !(SQLITE_OMIT_PRAGMA) /* ** Interpret the given string as a locking mode value. */ private static int getLockingMode(string z) { if (z != null) { if (z.Equals("exclusive", StringComparison.OrdinalIgnoreCase)) return PAGER_LOCKINGMODE_EXCLUSIVE; if (z.Equals("normal", StringComparison.OrdinalIgnoreCase)) return PAGER_LOCKINGMODE_NORMAL; } return PAGER_LOCKINGMODE_QUERY; } #if !SQLITE_OMIT_AUTOVACUUM /* ** Interpret the given string as an auto-vacuum mode value. ** ** The following strings, "none", "full" and "incremental" are ** acceptable, as are their numeric equivalents: 0, 1 and 2 respectively. */ private static u8 getAutoVacuum(string z) { int i; if (z.Equals("none", StringComparison.OrdinalIgnoreCase)) return BTREE_AUTOVACUUM_NONE; if (z.Equals("full", StringComparison.OrdinalIgnoreCase)) return BTREE_AUTOVACUUM_FULL; if (z.Equals("incremental", StringComparison.OrdinalIgnoreCase)) return BTREE_AUTOVACUUM_INCR; i = atoi(z); return (u8)((i >= 0 && i <= 2) ? i : 0); } #endif // * if !SQLITE_OMIT_AUTOVACUUM */ #if !SQLITE_OMIT_PAGER_PRAGMAS /* ** Interpret the given string as a temp db location. Return 1 for file ** backed temporary databases, 2 for the Red-Black tree in memory database ** and 0 to use the compile-time default. */ private static int getTempStore(string z) { if (z[0] >= '0' && z[0] <= '2') { return z[0] - '0'; } else if (z.Equals("file", StringComparison.OrdinalIgnoreCase)) { return 1; } else if (z.Equals("memory", StringComparison.OrdinalIgnoreCase)) { return 2; } else { return 0; } } #endif // * SQLITE_PAGER_PRAGMAS */ #if !SQLITE_OMIT_PAGER_PRAGMAS /* ** Invalidate temp storage, either when the temp storage is changed ** from default, or when 'file' and the temp_store_directory has changed */ private static int invalidateTempStorage(Parse pParse) { sqlite3 db = pParse.db; if (db.aDb[1].pBt != null) { if (0 == db.autoCommit || sqlite3BtreeIsInReadTrans(db.aDb[1].pBt)) { sqlite3ErrorMsg(pParse, "temporary storage cannot be changed " + "from within a transaction"); return SQLITE_ERROR; } sqlite3BtreeClose(ref db.aDb[1].pBt); db.aDb[1].pBt = null; sqlite3ResetInternalSchema(db, -1); } return SQLITE_OK; } #endif // * SQLITE_PAGER_PRAGMAS */ #if !SQLITE_OMIT_PAGER_PRAGMAS /* ** If the TEMP database is open, close it and mark the database schema ** as needing reloading. This must be done when using the SQLITE_TEMP_STORE ** or DEFAULT_TEMP_STORE pragmas. */ private static int changeTempStorage(Parse pParse, string zStorageType) { int ts = getTempStore(zStorageType); sqlite3 db = pParse.db; if (db.temp_store == ts) return SQLITE_OK; if (invalidateTempStorage(pParse) != SQLITE_OK) { return SQLITE_ERROR; } db.temp_store = (u8)ts; return SQLITE_OK; } #endif // * SQLITE_PAGER_PRAGMAS */ /* ** Generate code to return a single integer value. */ private static void returnSingleInt(Parse pParse, string zLabel, i64 value) { Vdbe v = sqlite3GetVdbe(pParse); int mem = ++pParse.nMem; //i64* pI64 = sqlite3DbMallocRaw( pParse->db, sizeof( value ) ); //if ( pI64 ) //{ // memcpy( pI64, &value, sizeof( value ) ); //} //sqlite3VdbeAddOp4( v, OP_Int64, 0, mem, 0, (char*)pI64, P4_INT64 ); sqlite3VdbeAddOp4(v, OP_Int64, 0, mem, 0, value, P4_INT64); sqlite3VdbeSetNumCols(v, 1); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, zLabel, SQLITE_STATIC); sqlite3VdbeAddOp2(v, OP_ResultRow, mem, 1); } #if !SQLITE_OMIT_FLAG_PRAGMAS /* ** Check to see if zRight and zLeft refer to a pragma that queries ** or changes one of the flags in db.flags. Return 1 if so and 0 if not. ** Also, implement the pragma. */ private struct sPragmaType { public string zName; /* Name of the pragma */ public int mask; /* Mask for the db.flags value */ public sPragmaType(string zName, int mask) { this.zName = zName; this.mask = mask; } } private static int flagPragma(Parse pParse, string zLeft, string zRight) { sPragmaType[] aPragma = new sPragmaType[]{ new sPragmaType( "full_column_names", SQLITE_FullColNames ), new sPragmaType( "short_column_names", SQLITE_ShortColNames ), new sPragmaType( "count_changes", SQLITE_CountRows ), new sPragmaType( "empty_result_callbacks", SQLITE_NullCallback ), new sPragmaType( "legacy_file_format", SQLITE_LegacyFileFmt ), new sPragmaType( "fullfsync", SQLITE_FullFSync ), new sPragmaType( "checkpoint_fullfsync", SQLITE_CkptFullFSync ), new sPragmaType( "reverse_unordered_selects", SQLITE_ReverseOrder), #if !SQLITE_OMIT_AUTOMATIC_INDEX new sPragmaType( "automatic_index", SQLITE_AutoIndex ), #endif #if SQLITE_DEBUG new sPragmaType( "sql_trace", SQLITE_SqlTrace ), new sPragmaType( "vdbe_listing", SQLITE_VdbeListing ), new sPragmaType( "vdbe_trace", SQLITE_VdbeTrace ), #endif #if !SQLITE_OMIT_CHECK new sPragmaType( "ignore_check_constraints", SQLITE_IgnoreChecks ), #endif /* The following is VERY experimental */ new sPragmaType( "writable_schema", SQLITE_WriteSchema|SQLITE_RecoveryMode ), new sPragmaType( "omit_readlock", SQLITE_NoReadlock ), /* TODO: Maybe it shouldn't be possible to change the ReadUncommitted ** flag if there are any active statements. */ new sPragmaType( "read_uncommitted", SQLITE_ReadUncommitted ), new sPragmaType( "recursive_triggers", SQLITE_RecTriggers ), /* This flag may only be set if both foreign-key and trigger support ** are present in the build. */ #if !(SQLITE_OMIT_FOREIGN_KEY) && !(SQLITE_OMIT_TRIGGER) new sPragmaType( "foreign_keys", SQLITE_ForeignKeys ), #endif }; int i; sPragmaType p; for (i = 0; i < ArraySize(aPragma); i++)//, p++) { p = aPragma[i]; if (zLeft.Equals(p.zName, StringComparison.OrdinalIgnoreCase)) { sqlite3 db = pParse.db; Vdbe v; v = sqlite3GetVdbe(pParse); Debug.Assert(v != null); /* Already allocated by sqlite3Pragma() */ if (ALWAYS(v)) { if (null == zRight) { returnSingleInt(pParse, p.zName, ((db.flags & p.mask) != 0) ? 1 : 0); } else { int mask = p.mask; /* Mask of bits to set or clear. */ if (db.autoCommit == 0) { /* Foreign key support may not be enabled or disabled while not ** in auto-commit mode. */ mask &= ~(SQLITE_ForeignKeys); } if (sqlite3GetBoolean(zRight) != 0) { db.flags |= mask; } else { db.flags &= ~mask; } /* Many of the flag-pragmas modify the code generated by the SQL ** compiler (eg. count_changes). So add an opcode to expire all ** compiled SQL statements after modifying a pragma value. */ sqlite3VdbeAddOp2(v, OP_Expire, 0, 0); } } return 1; } } return 0; } #endif // * SQLITE_OMIT_FLAG_PRAGMAS */ /* ** Return a human-readable name for a constraint resolution action. */ #if !SQLITE_OMIT_FOREIGN_KEY private static string actionName(int action) { string zName; switch (action) { case OE_SetNull: zName = "SET NULL"; break; case OE_SetDflt: zName = "SET DEFAULT"; break; case OE_Cascade: zName = "CASCADE"; break; case OE_Restrict: zName = "RESTRICT"; break; default: zName = "NO ACTION"; Debug.Assert(action == OE_None); break; } return zName; } #endif /* ** Parameter eMode must be one of the PAGER_JOURNALMODE_XXX constants ** defined in pager.h. This function returns the associated lowercase ** journal-mode name. */ private static string sqlite3JournalModename(int eMode) { string[] azModeName = { "delete", "persist", "off", "truncate", "memory" #if !SQLITE_OMIT_WAL , "wal" #endif }; Debug.Assert(PAGER_JOURNALMODE_DELETE == 0); Debug.Assert(PAGER_JOURNALMODE_PERSIST == 1); Debug.Assert(PAGER_JOURNALMODE_OFF == 2); Debug.Assert(PAGER_JOURNALMODE_TRUNCATE == 3); Debug.Assert(PAGER_JOURNALMODE_MEMORY == 4); Debug.Assert(PAGER_JOURNALMODE_WAL == 5); Debug.Assert(eMode >= 0 && eMode <= ArraySize(azModeName)); if (eMode == ArraySize(azModeName)) return null; return azModeName[eMode]; } /* ** Process a pragma statement. ** ** Pragmas are of this form: ** ** PRAGMA [database.]id [= value] ** ** The identifier might also be a string. The value is a string, and ** identifier, or a number. If minusFlag is true, then the value is ** a number that was preceded by a minus sign. ** ** If the left side is "database.id" then pId1 is the database name ** and pId2 is the id. If the left side is just "id" then pId1 is the ** id and pId2 is any empty string. */ private class EncName { public string zName; public u8 enc; public EncName(string zName, u8 enc) { this.zName = zName; this.enc = enc; } }; private static EncName[] encnames = new EncName[] { new EncName( "UTF8", SQLITE_UTF8 ), new EncName( "UTF-8", SQLITE_UTF8 ),/* Must be element [1] */ new EncName( "UTF-16le (not supported)", SQLITE_UTF16LE ),/* Must be element [2] */ new EncName( "UTF-16be (not supported)", SQLITE_UTF16BE ), /* Must be element [3] */ new EncName( "UTF16le (not supported)", SQLITE_UTF16LE ), new EncName( "UTF16be (not supported)", SQLITE_UTF16BE ), new EncName( "UTF-16 (not supported)", 0 ), /* SQLITE_UTF16NATIVE */ new EncName( "UTF16", 0 ), /* SQLITE_UTF16NATIVE */ new EncName( null, 0 ) }; // OVERLOADS, so I don't need to rewrite parse.c private static void sqlite3Pragma(Parse pParse, Token pId1, Token pId2, int null_4, int minusFlag) { sqlite3Pragma(pParse, pId1, pId2, null, minusFlag); } private static void sqlite3Pragma( Parse pParse, Token pId1, /* First part of [database.]id field */ Token pId2, /* Second part of [database.]id field, or NULL */ Token pValue, /* Token for , or NULL */ int minusFlag /* True if a '-' sign preceded */ ) { string zLeft = null; /* Nul-terminated UTF-8 string */ string zRight = null; /* Nul-terminated UTF-8 string , or NULL */ string zDb = null; /* The database name */ Token pId = new Token();/* Pointer to token */ int iDb; /* Database index for */ sqlite3 db = pParse.db; Db pDb; Vdbe v = pParse.pVdbe = sqlite3VdbeCreate(db); if (v == null) return; sqlite3VdbeRunOnlyOnce(v); pParse.nMem = 2; /* Interpret the [database.] part of the pragma statement. iDb is the ** index of the database this pragma is being applied to in db.aDb[]. */ iDb = sqlite3TwoPartName(pParse, pId1, pId2, ref pId); if (iDb < 0) return; pDb = db.aDb[iDb]; /* If the temp database has been explicitly named as part of the ** pragma, make sure it is open. */ if (iDb == 1 && sqlite3OpenTempDatabase(pParse) != 0) { return; } zLeft = sqlite3NameFromToken(db, pId); if (String.IsNullOrEmpty(zLeft)) return; if (minusFlag != 0) { zRight = (pValue == null) ? "" : sqlite3MPrintf(db, "-%T", pValue); } else { zRight = sqlite3NameFromToken(db, pValue); } Debug.Assert(pId2 != null); zDb = pId2.n > 0 ? pDb.zName : null; #if !SQLITE_OMIT_AUTHORIZATION if ( sqlite3AuthCheck( pParse, SQLITE_PRAGMA, zLeft, zRight, zDb ) ) { goto pragma_out; } #endif #if !SQLITE_OMIT_PAGER_PRAGMAS /* ** PRAGMA [database.]default_cache_size ** PRAGMA [database.]default_cache_size=N ** ** The first form reports the current persistent setting for the ** page cache size. The value returned is the maximum number of ** pages in the page cache. The second form sets both the current ** page cache size value and the persistent page cache size value ** stored in the database file. ** ** Older versions of SQLite would set the default cache size to a ** negative number to indicate synchronous=OFF. These days, synchronous ** is always on by default regardless of the sign of the default cache ** size. But continue to take the absolute value of the default cache ** size of historical compatibility. */ if (zLeft.Equals("default_cache_size", StringComparison.OrdinalIgnoreCase)) { VdbeOpList[] getCacheSize = new VdbeOpList[]{ new VdbeOpList( OP_Transaction, 0, 0, 0), /* 0 */ new VdbeOpList( OP_ReadCookie, 0, 1, BTREE_DEFAULT_CACHE_SIZE), /* 1 */ new VdbeOpList( OP_IfPos, 1, 7, 0), new VdbeOpList( OP_Integer, 0, 2, 0), new VdbeOpList( OP_Subtract, 1, 2, 1), new VdbeOpList( OP_IfPos, 1, 7, 0), new VdbeOpList( OP_Integer, 0, 1, 0), /* 6 */ new VdbeOpList( OP_ResultRow, 1, 1, 0), }; int addr; if (sqlite3ReadSchema(pParse) != 0) goto pragma_out; sqlite3VdbeUsesBtree(v, iDb); if (null == zRight) { sqlite3VdbeSetNumCols(v, 1); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "cache_size", SQLITE_STATIC); pParse.nMem += 2; addr = sqlite3VdbeAddOpList(v, getCacheSize.Length, getCacheSize); sqlite3VdbeChangeP1(v, addr, iDb); sqlite3VdbeChangeP1(v, addr + 1, iDb); sqlite3VdbeChangeP1(v, addr + 6, SQLITE_DEFAULT_CACHE_SIZE); } else { int size = sqlite3AbsInt32(sqlite3Atoi(zRight)); sqlite3BeginWriteOperation(pParse, 0, iDb); sqlite3VdbeAddOp2(v, OP_Integer, size, 1); sqlite3VdbeAddOp3(v, OP_SetCookie, iDb, BTREE_DEFAULT_CACHE_SIZE, 1); Debug.Assert(sqlite3SchemaMutexHeld(db, iDb, null)); pDb.pSchema.cache_size = size; sqlite3BtreeSetCacheSize(pDb.pBt, pDb.pSchema.cache_size); } } else /* ** PRAGMA [database.]page_size ** PRAGMA [database.]page_size=N ** ** The first form reports the current setting for the ** database page size in bytes. The second form sets the ** database page size value. The value can only be set if ** the database has not yet been created. */ if (zLeft.Equals("page_size", StringComparison.OrdinalIgnoreCase)) { Btree pBt = pDb.pBt; Debug.Assert(pBt != null); if (null == zRight) { int size = ALWAYS(pBt) ? sqlite3BtreeGetPageSize(pBt) : 0; returnSingleInt(pParse, "page_size", size); } else { /* Malloc may fail when setting the page-size, as there is an internal ** buffer that the pager module resizes using sqlite3_realloc(). */ db.nextPagesize = sqlite3Atoi(zRight); if (SQLITE_NOMEM == sqlite3BtreeSetPageSize(pBt, db.nextPagesize, -1, 0)) { //// db.mallocFailed = 1; } } } else /* ** PRAGMA [database.]secure_delete ** PRAGMA [database.]secure_delete=ON/OFF ** ** The first form reports the current setting for the ** secure_delete flag. The second form changes the secure_delete ** flag setting and reports thenew value. */ if (zLeft.Equals("secure_delete", StringComparison.OrdinalIgnoreCase)) { Btree pBt = pDb.pBt; int b = -1; Debug.Assert(pBt != null); if (zRight != null) { b = sqlite3GetBoolean(zRight); } if (pId2.n == 0 && b >= 0) { int ii; for (ii = 0; ii < db.nDb; ii++) { sqlite3BtreeSecureDelete(db.aDb[ii].pBt, b); } } b = sqlite3BtreeSecureDelete(pBt, b); returnSingleInt(pParse, "secure_delete", b); } else /* ** PRAGMA [database.]max_page_count ** PRAGMA [database.]max_page_count=N ** ** The first form reports the current setting for the ** maximum number of pages in the database file. The ** second form attempts to change this setting. Both ** forms return the current setting. ** ** PRAGMA [database.]page_count ** ** Return the number of pages in the specified database. */ if (zLeft.Equals("page_count", StringComparison.OrdinalIgnoreCase) || zLeft.Equals("max_page_count", StringComparison.OrdinalIgnoreCase) ) { int iReg; if (sqlite3ReadSchema(pParse) != 0) goto pragma_out; sqlite3CodeVerifySchema(pParse, iDb); iReg = ++pParse.nMem; if (zLeft[0] == 'p') { sqlite3VdbeAddOp2(v, OP_Pagecount, iDb, iReg); } else { sqlite3VdbeAddOp3(v, OP_MaxPgcnt, iDb, iReg, sqlite3Atoi(zRight)); } sqlite3VdbeAddOp2(v, OP_ResultRow, iReg, 1); sqlite3VdbeSetNumCols(v, 1); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, zLeft, SQLITE_TRANSIENT); } else /* ** PRAGMA [database.]page_count ** ** Return the number of pages in the specified database. */ if (zLeft.Equals("page_count", StringComparison.OrdinalIgnoreCase)) { Vdbe _v; int iReg; _v = sqlite3GetVdbe(pParse); if (_v == null || sqlite3ReadSchema(pParse) != 0) goto pragma_out; sqlite3CodeVerifySchema(pParse, iDb); iReg = ++pParse.nMem; sqlite3VdbeAddOp2(_v, OP_Pagecount, iDb, iReg); sqlite3VdbeAddOp2(_v, OP_ResultRow, iReg, 1); sqlite3VdbeSetNumCols(_v, 1); sqlite3VdbeSetColName(_v, 0, COLNAME_NAME, "page_count", SQLITE_STATIC); } else /* ** PRAGMA [database.]locking_mode ** PRAGMA [database.]locking_mode = (normal|exclusive) */ if (zLeft.Equals("locking_mode", StringComparison.OrdinalIgnoreCase)) { string zRet = "normal"; int eMode = getLockingMode(zRight); if (pId2.n == 0 && eMode == PAGER_LOCKINGMODE_QUERY) { /* Simple "PRAGMA locking_mode;" statement. This is a query for ** the current default locking mode (which may be different to ** the locking-mode of the main database). */ eMode = db.dfltLockMode; } else { Pager pPager; if (pId2.n == 0) { /* This indicates that no database name was specified as part ** of the PRAGMA command. In this case the locking-mode must be ** set on all attached databases, as well as the main db file. ** ** Also, the sqlite3.dfltLockMode variable is set so that ** any subsequently attached databases also use the specified ** locking mode. */ int ii; Debug.Assert(pDb == db.aDb[0]); for (ii = 2; ii < db.nDb; ii++) { pPager = sqlite3BtreePager(db.aDb[ii].pBt); sqlite3PagerLockingMode(pPager, eMode); } db.dfltLockMode = (u8)eMode; } pPager = sqlite3BtreePager(pDb.pBt); eMode = sqlite3PagerLockingMode(pPager, eMode) ? 1 : 0; } Debug.Assert(eMode == PAGER_LOCKINGMODE_NORMAL || eMode == PAGER_LOCKINGMODE_EXCLUSIVE); if (eMode == PAGER_LOCKINGMODE_EXCLUSIVE) { zRet = "exclusive"; } sqlite3VdbeSetNumCols(v, 1); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "locking_mode", SQLITE_STATIC); sqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, zRet, 0); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1); } else /* ** PRAGMA [database.]journal_mode ** PRAGMA [database.]journal_mode = ** (delete|persist|off|truncate|memory|wal|off) */ if (zLeft.Equals("journal_mode", StringComparison.OrdinalIgnoreCase)) { int eMode; /* One of the PAGER_JOURNALMODE_XXX symbols */ int ii; /* Loop counter */ /* Force the schema to be loaded on all databases. This cases all ** database files to be opened and the journal_modes set. */ if (sqlite3ReadSchema(pParse) != 0) { goto pragma_out; } sqlite3VdbeSetNumCols(v, 1); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "journal_mode", SQLITE_STATIC); if (null == zRight) { /* If there is no "=MODE" part of the pragma, do a query for the ** current mode */ eMode = PAGER_JOURNALMODE_QUERY; } else { string zMode; int n = sqlite3Strlen30(zRight); for (eMode = 0; (zMode = sqlite3JournalModename(eMode)) != null; eMode++) { if (sqlite3StrNICmp(zRight, zMode, n) == 0) break; } if (null == zMode) { /* If the "=MODE" part does not match any known journal mode, ** then do a query */ eMode = PAGER_JOURNALMODE_QUERY; } } if (eMode == PAGER_JOURNALMODE_QUERY && pId2.n == 0) { /* Convert "PRAGMA journal_mode" into "PRAGMA main.journal_mode" */ iDb = 0; pId2.n = 1; } for (ii = db.nDb - 1; ii >= 0; ii--) { if (db.aDb[ii].pBt != null && (ii == iDb || pId2.n == 0)) { sqlite3VdbeUsesBtree(v, ii); sqlite3VdbeAddOp3(v, OP_JournalMode, ii, 1, eMode); } } sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1); } else /* ** PRAGMA [database.]journal_size_limit ** PRAGMA [database.]journal_size_limit=N ** ** Get or set the size limit on rollback journal files. */ if (zLeft.Equals("journal_size_limit", StringComparison.OrdinalIgnoreCase)) { Pager pPager = sqlite3BtreePager(pDb.pBt); i64 iLimit = -2; if (!String.IsNullOrEmpty(zRight)) { sqlite3Atoi64(zRight, ref iLimit, 1000000, SQLITE_UTF8); if (iLimit < -1) iLimit = -1; } iLimit = sqlite3PagerJournalSizeLimit(pPager, iLimit); returnSingleInt(pParse, "journal_size_limit", iLimit); } else #endif // * SQLITE_OMIT_PAGER_PRAGMAS */ /* ** PRAGMA [database.]auto_vacuum ** PRAGMA [database.]auto_vacuum=N ** ** Get or set the value of the database 'auto-vacuum' parameter. ** The value is one of: 0 NONE 1 FULL 2 INCREMENTAL */ #if !SQLITE_OMIT_AUTOVACUUM if (zLeft.Equals("auto_vacuum", StringComparison.OrdinalIgnoreCase)) { Btree pBt = pDb.pBt; Debug.Assert(pBt != null); if (sqlite3ReadSchema(pParse) != 0) { goto pragma_out; } if (null == zRight) { int auto_vacuum; if (ALWAYS(pBt)) { auto_vacuum = sqlite3BtreeGetAutoVacuum(pBt); } else { auto_vacuum = SQLITE_DEFAULT_AUTOVACUUM; } returnSingleInt(pParse, "auto_vacuum", auto_vacuum); } else { int eAuto = getAutoVacuum(zRight); Debug.Assert(eAuto >= 0 && eAuto <= 2); db.nextAutovac = (u8)eAuto; if (ALWAYS(eAuto >= 0)) { /* Call SetAutoVacuum() to set initialize the internal auto and ** incr-vacuum flags. This is required in case this connection ** creates the database file. It is important that it is created ** as an auto-vacuum capable db. */ int rc = sqlite3BtreeSetAutoVacuum(pBt, eAuto); if (rc == SQLITE_OK && (eAuto == 1 || eAuto == 2)) { /* When setting the auto_vacuum mode to either "full" or ** "incremental", write the value of meta[6] in the database ** file. Before writing to meta[6], check that meta[3] indicates ** that this really is an auto-vacuum capable database. */ VdbeOpList[] setMeta6 = new VdbeOpList[] { new VdbeOpList( OP_Transaction, 0, 1, 0), /* 0 */ new VdbeOpList( OP_ReadCookie, 0, 1, BTREE_LARGEST_ROOT_PAGE), /* 1 */ new VdbeOpList( OP_If, 1, 0, 0), /* 2 */ new VdbeOpList( OP_Halt, SQLITE_OK, OE_Abort, 0), /* 3 */ new VdbeOpList( OP_Integer, 0, 1, 0), /* 4 */ new VdbeOpList( OP_SetCookie, 0, BTREE_INCR_VACUUM, 1), /* 5 */ }; int iAddr; iAddr = sqlite3VdbeAddOpList(v, ArraySize(setMeta6), setMeta6); sqlite3VdbeChangeP1(v, iAddr, iDb); sqlite3VdbeChangeP1(v, iAddr + 1, iDb); sqlite3VdbeChangeP2(v, iAddr + 2, iAddr + 4); sqlite3VdbeChangeP1(v, iAddr + 4, eAuto - 1); sqlite3VdbeChangeP1(v, iAddr + 5, iDb); sqlite3VdbeUsesBtree(v, iDb); } } } } else #endif /* ** PRAGMA [database.]incremental_vacuum(N) ** ** Do N steps of incremental vacuuming on a database. */ #if !SQLITE_OMIT_AUTOVACUUM if (zLeft.Equals("incremental_vacuum", StringComparison.OrdinalIgnoreCase)) { int iLimit = 0, addr; if (sqlite3ReadSchema(pParse) != 0) { goto pragma_out; } if (zRight == null || !sqlite3GetInt32(zRight, ref iLimit) || iLimit <= 0) { iLimit = 0x7fffffff; } sqlite3BeginWriteOperation(pParse, 0, iDb); sqlite3VdbeAddOp2(v, OP_Integer, iLimit, 1); addr = sqlite3VdbeAddOp1(v, OP_IncrVacuum, iDb); sqlite3VdbeAddOp1(v, OP_ResultRow, 1); sqlite3VdbeAddOp2(v, OP_AddImm, 1, -1); sqlite3VdbeAddOp2(v, OP_IfPos, 1, addr); sqlite3VdbeJumpHere(v, addr); } else #endif #if !SQLITE_OMIT_PAGER_PRAGMAS /* ** PRAGMA [database.]cache_size ** PRAGMA [database.]cache_size=N ** ** The first form reports the current local setting for the ** page cache size. The local setting can be different from ** the persistent cache size value that is stored in the database ** file itself. The value returned is the maximum number of ** pages in the page cache. The second form sets the local ** page cache size value. It does not change the persistent ** cache size stored on the disk so the cache size will revert ** to its default value when the database is closed and reopened. ** N should be a positive integer. */ if (zLeft.Equals("cache_size", StringComparison.OrdinalIgnoreCase)) { if (sqlite3ReadSchema(pParse) != 0) goto pragma_out; Debug.Assert(sqlite3SchemaMutexHeld(db, iDb, null)); if (null == zRight) { returnSingleInt(pParse, "cache_size", pDb.pSchema.cache_size); } else { int size = sqlite3AbsInt32(sqlite3Atoi(zRight)); pDb.pSchema.cache_size = size; sqlite3BtreeSetCacheSize(pDb.pBt, pDb.pSchema.cache_size); } } else /* ** PRAGMA temp_store ** PRAGMA temp_store = "default"|"memory"|"file" ** ** Return or set the local value of the temp_store flag. Changing ** the local value does not make changes to the disk file and the default ** value will be restored the next time the database is opened. ** ** Note that it is possible for the library compile-time options to ** override this setting */ if (zLeft.Equals("temp_store", StringComparison.OrdinalIgnoreCase)) { if (zRight == null) { returnSingleInt(pParse, "temp_store", db.temp_store); } else { changeTempStorage(pParse, zRight); } } else /* ** PRAGMA temp_store_directory ** PRAGMA temp_store_directory = ""|"directory_name" ** ** Return or set the local value of the temp_store_directory flag. Changing ** the value sets a specific directory to be used for temporary files. ** Setting to a null string reverts to the default temporary directory search. ** If temporary directory is changed, then invalidateTempStorage. ** */ if (zLeft.Equals("temp_store_directory", StringComparison.OrdinalIgnoreCase)) { if (null == zRight) { if (sqlite3_temp_directory != "") { sqlite3VdbeSetNumCols(v, 1); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "temp_store_directory", SQLITE_STATIC); sqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, sqlite3_temp_directory, 0); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1); } } else { #if !SQLITE_OMIT_WSD if (zRight.Length > 0) { int rc; int res = 0; rc = sqlite3OsAccess(db.pVfs, zRight, SQLITE_ACCESS_READWRITE, ref res); if (rc != SQLITE_OK || res == 0) { sqlite3ErrorMsg(pParse, "not a writable directory"); goto pragma_out; } } if (SQLITE_TEMP_STORE == 0 || (SQLITE_TEMP_STORE == 1 && db.temp_store <= 1) || (SQLITE_TEMP_STORE == 2 && db.temp_store == 1) ) { invalidateTempStorage(pParse); } //sqlite3_free( ref sqlite3_temp_directory ); if (zRight.Length > 0) { sqlite3_temp_directory = zRight;//sqlite3_mprintf("%s", zRight); } else { sqlite3_temp_directory = ""; } #endif //* SQLITE_OMIT_WSD */ } } else #if !(SQLITE_ENABLE_LOCKING_STYLE) # if (__APPLE__) //# define SQLITE_ENABLE_LOCKING_STYLE 1 # else //# define SQLITE_ENABLE_LOCKING_STYLE 0 # endif #endif #if SQLITE_ENABLE_LOCKING_STYLE /* ** PRAGMA [database.]lock_proxy_file ** PRAGMA [database.]lock_proxy_file = ":auto:"|"lock_file_path" ** ** Return or set the value of the lock_proxy_file flag. Changing ** the value sets a specific file to be used for database access locks. ** */ if ( zLeft.Equals( "lock_proxy_file", StringComparison.OrdinalIgnoreCase ) ) { if ( zRight !="") { Pager pPager = sqlite3BtreePager( pDb.pBt ); int proxy_file_path = 0; sqlite3_file pFile = sqlite3PagerFile( pPager ); sqlite3OsFileControl( pFile, SQLITE_GET_LOCKPROXYFILE, ref proxy_file_path ); if ( proxy_file_path!=0 ) { sqlite3VdbeSetNumCols( v, 1 ); sqlite3VdbeSetColName( v, 0, COLNAME_NAME, "lock_proxy_file", SQLITE_STATIC ); sqlite3VdbeAddOp4( v, OP_String8, 0, 1, 0, proxy_file_path, 0 ); sqlite3VdbeAddOp2( v, OP_ResultRow, 1, 1 ); } } else { Pager pPager = sqlite3BtreePager( pDb.pBt ); sqlite3_file pFile = sqlite3PagerFile( pPager ); int res; int iDummy = 0; if ( zRight[0]!=0 ) { iDummy = zRight[0]; res = sqlite3OsFileControl( pFile, SQLITE_SET_LOCKPROXYFILE, ref iDummy ); } else { res = sqlite3OsFileControl( pFile, SQLITE_SET_LOCKPROXYFILE, ref iDummy ); } if ( res != SQLITE_OK ) { sqlite3ErrorMsg( pParse, "failed to set lock proxy file" ); goto pragma_out; } } } else #endif //* SQLITE_ENABLE_LOCKING_STYLE */ /* ** PRAGMA [database.]synchronous ** PRAGMA [database.]synchronous=OFF|ON|NORMAL|FULL ** ** Return or set the local value of the synchronous flag. Changing ** the local value does not make changes to the disk file and the ** default value will be restored the next time the database is ** opened. */ if (zLeft.Equals("synchronous", StringComparison.OrdinalIgnoreCase)) { if (sqlite3ReadSchema(pParse) != 0) goto pragma_out; if (null == zRight) { returnSingleInt(pParse, "synchronous", pDb.safety_level - 1); } else { if (0 == db.autoCommit) { sqlite3ErrorMsg(pParse, "Safety level may not be changed inside a transaction"); } else { pDb.safety_level = (byte)(getSafetyLevel(zRight) + 1); } } } else #endif // * SQLITE_OMIT_PAGER_PRAGMAS */ #if !SQLITE_OMIT_FLAG_PRAGMAS if (flagPragma(pParse, zLeft, zRight) != 0) { /* The flagPragma() subroutine also generates any necessary code ** there is nothing more to do here */ } else #endif // * SQLITE_OMIT_FLAG_PRAGMAS */ #if !SQLITE_OMIT_SCHEMA_PRAGMAS /* ** PRAGMA table_info() ** ** Return a single row for each column of the named table. The columns of ** the returned data set are: ** ** cid: Column id (numbered from left to right, starting at 0) ** name: Column name ** type: Column declaration type. ** notnull: True if 'NOT NULL' is part of column declaration ** dflt_value: The default value for the column, if any. */ if (zLeft.Equals("table_info", StringComparison.OrdinalIgnoreCase) && zRight != null) { Table pTab; if (sqlite3ReadSchema(pParse) != 0) goto pragma_out; pTab = sqlite3FindTable(db, zRight, zDb); if (pTab != null) { int i; int nHidden = 0; Column pCol; sqlite3VdbeSetNumCols(v, 6); pParse.nMem = 6; sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "cid", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "type", SQLITE_STATIC); sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "notnull", SQLITE_STATIC); sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "dflt_value", SQLITE_STATIC); sqlite3VdbeSetColName(v, 5, COLNAME_NAME, "pk", SQLITE_STATIC); sqlite3ViewGetColumnNames(pParse, pTab); for (i = 0; i < pTab.nCol; i++)//, pCol++) { pCol = pTab.aCol[i]; if (IsHiddenColumn(pCol)) { nHidden++; continue; } sqlite3VdbeAddOp2(v, OP_Integer, i - nHidden, 1); sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, pCol.zName, 0); sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, pCol.zType != null ? pCol.zType : "", 0); sqlite3VdbeAddOp2(v, OP_Integer, (pCol.notNull != 0 ? 1 : 0), 4); if (pCol.zDflt != null) { sqlite3VdbeAddOp4(v, OP_String8, 0, 5, 0, pCol.zDflt, 0); } else { sqlite3VdbeAddOp2(v, OP_Null, 0, 5); } sqlite3VdbeAddOp2(v, OP_Integer, pCol.isPrimKey != 0 ? 1 : 0, 6); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 6); } } } else if (zLeft.Equals("index_info", StringComparison.OrdinalIgnoreCase) && zRight != null) { Index pIdx; Table pTab; if (sqlite3ReadSchema(pParse) != 0) goto pragma_out; pIdx = sqlite3FindIndex(db, zRight, zDb); if (pIdx != null) { int i; pTab = pIdx.pTable; sqlite3VdbeSetNumCols(v, 3); pParse.nMem = 3; sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seqno", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "cid", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "name", SQLITE_STATIC); for (i = 0; i < pIdx.nColumn; i++) { int cnum = pIdx.aiColumn[i]; sqlite3VdbeAddOp2(v, OP_Integer, i, 1); sqlite3VdbeAddOp2(v, OP_Integer, cnum, 2); Debug.Assert(pTab.nCol > cnum); sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, pTab.aCol[cnum].zName, 0); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3); } } } else if (zLeft.Equals("index_list", StringComparison.OrdinalIgnoreCase) && zRight != null) { Index pIdx; Table pTab; if (sqlite3ReadSchema(pParse) != 0) goto pragma_out; pTab = sqlite3FindTable(db, zRight, zDb); if (pTab != null) { v = sqlite3GetVdbe(pParse); pIdx = pTab.pIndex; if (pIdx != null) { int i = 0; sqlite3VdbeSetNumCols(v, 3); pParse.nMem = 3; sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "unique", SQLITE_STATIC); while (pIdx != null) { sqlite3VdbeAddOp2(v, OP_Integer, i, 1); sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, pIdx.zName, 0); sqlite3VdbeAddOp2(v, OP_Integer, (pIdx.onError != OE_None) ? 1 : 0, 3); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3); ++i; pIdx = pIdx.pNext; } } } } else if (zLeft.Equals("database_list", StringComparison.OrdinalIgnoreCase)) { int i; if (sqlite3ReadSchema(pParse) != 0) goto pragma_out; sqlite3VdbeSetNumCols(v, 3); pParse.nMem = 3; sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "file", SQLITE_STATIC); for (i = 0; i < db.nDb; i++) { if (db.aDb[i].pBt == null) continue; Debug.Assert(db.aDb[i].zName != null); sqlite3VdbeAddOp2(v, OP_Integer, i, 1); sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, db.aDb[i].zName, 0); sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, sqlite3BtreeGetFilename(db.aDb[i].pBt), 0); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3); } } else if (zLeft.Equals("collation_list", StringComparison.OrdinalIgnoreCase)) { int i = 0; HashElem p; sqlite3VdbeSetNumCols(v, 2); pParse.nMem = 2; sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC); for (p = db.aCollSeq.first; p != null; p = p.next)//( p = sqliteHashFirst( db.aCollSeq ) ; p; p = sqliteHashNext( p ) ) { CollSeq pColl = ((CollSeq[])p.data)[0];// sqliteHashData( p ); sqlite3VdbeAddOp2(v, OP_Integer, i++, 1); sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, pColl.zName, 0); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2); } } else #endif // * SQLITE_OMIT_SCHEMA_PRAGMAS */ #if !SQLITE_OMIT_FOREIGN_KEY if (zLeft.Equals("foreign_key_list", StringComparison.OrdinalIgnoreCase) && zRight != null) { FKey pFK; Table pTab; if (sqlite3ReadSchema(pParse) != 0) goto pragma_out; pTab = sqlite3FindTable(db, zRight, zDb); if (pTab != null) { v = sqlite3GetVdbe(pParse); pFK = pTab.pFKey; if (pFK != null) { int i = 0; sqlite3VdbeSetNumCols(v, 8); pParse.nMem = 8; sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "id", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "seq", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "table", SQLITE_STATIC); sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "from", SQLITE_STATIC); sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "to", SQLITE_STATIC); sqlite3VdbeSetColName(v, 5, COLNAME_NAME, "on_update", SQLITE_STATIC); sqlite3VdbeSetColName(v, 6, COLNAME_NAME, "on_delete", SQLITE_STATIC); sqlite3VdbeSetColName(v, 7, COLNAME_NAME, "match", SQLITE_STATIC); while (pFK != null) { int j; for (j = 0; j < pFK.nCol; j++) { string zCol = pFK.aCol[j].zCol; string zOnDelete = actionName(pFK.aAction[0]); string zOnUpdate = actionName(pFK.aAction[1]); sqlite3VdbeAddOp2(v, OP_Integer, i, 1); sqlite3VdbeAddOp2(v, OP_Integer, j, 2); sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, pFK.zTo, 0); sqlite3VdbeAddOp4(v, OP_String8, 0, 4, 0, pTab.aCol[pFK.aCol[j].iFrom].zName, 0); sqlite3VdbeAddOp4(v, zCol != null ? OP_String8 : OP_Null, 0, 5, 0, zCol, 0); sqlite3VdbeAddOp4(v, OP_String8, 0, 6, 0, zOnUpdate, 0); sqlite3VdbeAddOp4(v, OP_String8, 0, 7, 0, zOnDelete, 0); sqlite3VdbeAddOp4(v, OP_String8, 0, 8, 0, "NONE", 0); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 8); } ++i; pFK = pFK.pNextFrom; } } } } else #endif // * !SQLITE_OMIT_FOREIGN_KEY) */ #if !NDEBUG if (zLeft.Equals("parser_trace", StringComparison.OrdinalIgnoreCase)) { if (zRight != null) { if (sqlite3GetBoolean(zRight) != 0) { sqlite3ParserTrace(Console.Out, "parser: "); } else { sqlite3ParserTrace(null, ""); } } } else #endif /* Reinstall the LIKE and GLOB functions. The variant of LIKE ** used will be case sensitive or not depending on the RHS. */ if (zLeft.Equals("case_sensitive_like", StringComparison.OrdinalIgnoreCase)) { if (zRight != null) { sqlite3RegisterLikeFunctions(db, sqlite3GetBoolean(zRight)); } } else #if !SQLITE_INTEGRITY_CHECK_ERROR_MAX //const int SQLITE_INTEGRITY_CHECK_ERROR_MAX = 100; #endif #if !SQLITE_OMIT_INTEGRITY_CHECK /* Pragma "quick_check" is an experimental reduced version of ** integrity_check designed to detect most database corruption ** without most of the overhead of a full integrity-check. */ if (zLeft.Equals("integrity_check", StringComparison.OrdinalIgnoreCase) || zLeft.Equals("quick_check", StringComparison.OrdinalIgnoreCase) ) { const int SQLITE_INTEGRITY_CHECK_ERROR_MAX = 100; int i, j, addr, mxErr; /* Code that appears at the end of the integrity check. If no error ** messages have been generated, refput OK. Otherwise output the ** error message */ VdbeOpList[] endCode = new VdbeOpList[] { new VdbeOpList( OP_AddImm, 1, 0, 0), /* 0 */ new VdbeOpList( OP_IfNeg, 1, 0, 0), /* 1 */ new VdbeOpList( OP_String8, 0, 3, 0), /* 2 */ new VdbeOpList( OP_ResultRow, 3, 1, 0), }; bool isQuick = (zLeft[0] == 'q'); /* Initialize the VDBE program */ if (sqlite3ReadSchema(pParse) != 0) goto pragma_out; pParse.nMem = 6; sqlite3VdbeSetNumCols(v, 1); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "integrity_check", SQLITE_STATIC); /* Set the maximum error count */ mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX; if (zRight != null) { sqlite3GetInt32(zRight, ref mxErr); if (mxErr <= 0) { mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX; } } sqlite3VdbeAddOp2(v, OP_Integer, mxErr, 1); /* reg[1] holds errors left */ /* Do an integrity check on each database file */ for (i = 0; i < db.nDb; i++) { HashElem x; Hash pTbls; int cnt = 0; if (OMIT_TEMPDB != 0 && i == 1) continue; sqlite3CodeVerifySchema(pParse, i); addr = sqlite3VdbeAddOp1(v, OP_IfPos, 1); /* Halt if out of errors */ sqlite3VdbeAddOp2(v, OP_Halt, 0, 0); sqlite3VdbeJumpHere(v, addr); /* Do an integrity check of the B-Tree ** ** Begin by filling registers 2, 3, ... with the root pages numbers ** for all tables and indices in the database. */ Debug.Assert(sqlite3SchemaMutexHeld(db, iDb, null)); pTbls = db.aDb[i].pSchema.tblHash; for (x = pTbls.first; x != null; x = x.next) {// for(x=sqliteHashFirst(pTbls); x; x=sqliteHashNext(x)){ Table pTab = (Table)x.data;// sqliteHashData( x ); Index pIdx; sqlite3VdbeAddOp2(v, OP_Integer, pTab.tnum, 2 + cnt); cnt++; for (pIdx = pTab.pIndex; pIdx != null; pIdx = pIdx.pNext) { sqlite3VdbeAddOp2(v, OP_Integer, pIdx.tnum, 2 + cnt); cnt++; } } /* Make sure sufficient number of registers have been allocated */ if (pParse.nMem < cnt + 4) { pParse.nMem = cnt + 4; } /* Do the b-tree integrity checks */ sqlite3VdbeAddOp3(v, OP_IntegrityCk, 2, cnt, 1); sqlite3VdbeChangeP5(v, (u8)i); addr = sqlite3VdbeAddOp1(v, OP_IsNull, 2); sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, sqlite3MPrintf(db, "*** in database %s ***\n", db.aDb[i].zName), P4_DYNAMIC); sqlite3VdbeAddOp3(v, OP_Move, 2, 4, 1); sqlite3VdbeAddOp3(v, OP_Concat, 4, 3, 2); sqlite3VdbeAddOp2(v, OP_ResultRow, 2, 1); sqlite3VdbeJumpHere(v, addr); /* Make sure all the indices are constructed correctly. */ for (x = pTbls.first; x != null && !isQuick; x = x.next) { ;// for(x=sqliteHashFirst(pTbls); x && !isQuick; x=sqliteHashNext(x)){ Table pTab = (Table)x.data;// sqliteHashData( x ); Index pIdx; int loopTop; if (pTab.pIndex == null) continue; addr = sqlite3VdbeAddOp1(v, OP_IfPos, 1); /* Stop if out of errors */ sqlite3VdbeAddOp2(v, OP_Halt, 0, 0); sqlite3VdbeJumpHere(v, addr); sqlite3OpenTableAndIndices(pParse, pTab, 1, OP_OpenRead); sqlite3VdbeAddOp2(v, OP_Integer, 0, 2); /* reg(2) will count entries */ loopTop = sqlite3VdbeAddOp2(v, OP_Rewind, 1, 0); sqlite3VdbeAddOp2(v, OP_AddImm, 2, 1); /* increment entry count */ for (j = 0, pIdx = pTab.pIndex; pIdx != null; pIdx = pIdx.pNext, j++) { int jmp2; int r1; VdbeOpList[] idxErr = new VdbeOpList[] { new VdbeOpList( OP_AddImm, 1, -1, 0), new VdbeOpList( OP_String8, 0, 3, 0), /* 1 */ new VdbeOpList( OP_Rowid, 1, 4, 0), new VdbeOpList( OP_String8, 0, 5, 0), /* 3 */ new VdbeOpList( OP_String8, 0, 6, 0), /* 4 */ new VdbeOpList( OP_Concat, 4, 3, 3), new VdbeOpList( OP_Concat, 5, 3, 3), new VdbeOpList( OP_Concat, 6, 3, 3), new VdbeOpList( OP_ResultRow, 3, 1, 0), new VdbeOpList( OP_IfPos, 1, 0, 0), /* 9 */ new VdbeOpList( OP_Halt, 0, 0, 0), }; r1 = sqlite3GenerateIndexKey(pParse, pIdx, 1, 3, false); jmp2 = sqlite3VdbeAddOp4Int(v, OP_Found, j + 2, 0, r1, pIdx.nColumn + 1); addr = sqlite3VdbeAddOpList(v, ArraySize(idxErr), idxErr); sqlite3VdbeChangeP4(v, addr + 1, "rowid ", SQLITE_STATIC); sqlite3VdbeChangeP4(v, addr + 3, " missing from index ", SQLITE_STATIC); sqlite3VdbeChangeP4(v, addr + 4, pIdx.zName, P4_TRANSIENT); sqlite3VdbeJumpHere(v, addr + 9); sqlite3VdbeJumpHere(v, jmp2); } sqlite3VdbeAddOp2(v, OP_Next, 1, loopTop + 1); sqlite3VdbeJumpHere(v, loopTop); for (j = 0, pIdx = pTab.pIndex; pIdx != null; pIdx = pIdx.pNext, j++) { VdbeOpList[] cntIdx = new VdbeOpList[] { new VdbeOpList( OP_Integer, 0, 3, 0), new VdbeOpList( OP_Rewind, 0, 0, 0), /* 1 */ new VdbeOpList( OP_AddImm, 3, 1, 0), new VdbeOpList( OP_Next, 0, 0, 0), /* 3 */ new VdbeOpList( OP_Eq, 2, 0, 3), /* 4 */ new VdbeOpList( OP_AddImm, 1, -1, 0), new VdbeOpList( OP_String8, 0, 2, 0), /* 6 */ new VdbeOpList( OP_String8, 0, 3, 0), /* 7 */ new VdbeOpList( OP_Concat, 3, 2, 2), new VdbeOpList( OP_ResultRow, 2, 1, 0), }; addr = sqlite3VdbeAddOp1(v, OP_IfPos, 1); sqlite3VdbeAddOp2(v, OP_Halt, 0, 0); sqlite3VdbeJumpHere(v, addr); addr = sqlite3VdbeAddOpList(v, ArraySize(cntIdx), cntIdx); sqlite3VdbeChangeP1(v, addr + 1, j + 2); sqlite3VdbeChangeP2(v, addr + 1, addr + 4); sqlite3VdbeChangeP1(v, addr + 3, j + 2); sqlite3VdbeChangeP2(v, addr + 3, addr + 2); sqlite3VdbeJumpHere(v, addr + 4); sqlite3VdbeChangeP4(v, addr + 6, "wrong # of entries in index ", P4_STATIC); sqlite3VdbeChangeP4(v, addr + 7, pIdx.zName, P4_TRANSIENT); } } } addr = sqlite3VdbeAddOpList(v, ArraySize(endCode), endCode); sqlite3VdbeChangeP2(v, addr, -mxErr); sqlite3VdbeJumpHere(v, addr + 1); sqlite3VdbeChangeP4(v, addr + 2, "ok", P4_STATIC); } else #endif // * SQLITE_OMIT_INTEGRITY_CHECK */ /* ** PRAGMA encoding ** PRAGMA encoding = "utf-8"|"utf-16"|"utf-16le"|"utf-16be" ** ** In its first form, this pragma returns the encoding of the main ** database. If the database is not initialized, it is initialized now. ** ** The second form of this pragma is a no-op if the main database file ** has not already been initialized. In this case it sets the default ** encoding that will be used for the main database file if a new file ** is created. If an existing main database file is opened, then the ** default text encoding for the existing database is used. ** ** In all cases new databases created using the ATTACH command are ** created to use the same default text encoding as the main database. If ** the main database has not been initialized and/or created when ATTACH ** is executed, this is done before the ATTACH operation. ** ** In the second form this pragma sets the text encoding to be used in ** new database files created using this database handle. It is only ** useful if invoked immediately after the main database i */ if (zLeft.Equals("encoding", StringComparison.OrdinalIgnoreCase)) { int iEnc; if (null == zRight) { /* "PRAGMA encoding" */ if (sqlite3ReadSchema(pParse) != 0) { pParse.nErr = 0; pParse.zErrMsg = null; pParse.rc = 0;// reset errors goto pragma_out; } sqlite3VdbeSetNumCols(v, 1); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "encoding", SQLITE_STATIC); sqlite3VdbeAddOp2(v, OP_String8, 0, 1); Debug.Assert(encnames[SQLITE_UTF8].enc == SQLITE_UTF8); Debug.Assert(encnames[SQLITE_UTF16LE].enc == SQLITE_UTF16LE); Debug.Assert(encnames[SQLITE_UTF16BE].enc == SQLITE_UTF16BE); sqlite3VdbeChangeP4(v, -1, encnames[ENC(pParse.db)].zName, P4_STATIC); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1); } #if !SQLITE_OMIT_UTF16 else { /* "PRAGMA encoding = XXX" */ /* Only change the value of sqlite.enc if the database handle is not ** initialized. If the main database exists, the new sqlite.enc value ** will be overwritten when the schema is next loaded. If it does not ** already exists, it will be created to use the new encoding value. */ if ( //!(DbHasProperty(db, 0, DB_SchemaLoaded)) || //DbHasProperty(db, 0, DB_Empty) ( db.flags & DB_SchemaLoaded ) != DB_SchemaLoaded || ( db.flags & DB_Empty ) == DB_Empty ) { for ( iEnc = 0 ; encnames[iEnc].zName != null ; iEnc++ ) { if ( zRight.Equals( encnames[iEnc].zName ,StringComparison.OrdinalIgnoreCase ) ) { pParse.db.aDbStatic[0].pSchema.enc = encnames[iEnc].enc != 0 ? encnames[iEnc].enc : SQLITE_UTF16NATIVE; break; } } if ( encnames[iEnc].zName == null ) { sqlite3ErrorMsg( pParse, "unsupported encoding: %s", zRight ); } } } #endif } else #if !SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS /* ** PRAGMA [database.]schema_version ** PRAGMA [database.]schema_version = ** ** PRAGMA [database.]user_version ** PRAGMA [database.]user_version = ** ** The pragma's schema_version and user_version are used to set or get ** the value of the schema-version and user-version, respectively. Both ** the schema-version and the user-version are 32-bit signed integers ** stored in the database header. ** ** The schema-cookie is usually only manipulated internally by SQLite. It ** is incremented by SQLite whenever the database schema is modified (by ** creating or dropping a table or index). The schema version is used by ** SQLite each time a query is executed to ensure that the internal cache ** of the schema used when compiling the SQL query matches the schema of ** the database against which the compiled query is actually executed. ** Subverting this mechanism by using "PRAGMA schema_version" to modify ** the schema-version is potentially dangerous and may lead to program ** crashes or database corruption. Use with caution! ** ** The user-version is not used internally by SQLite. It may be used by ** applications for any purpose. */ if (zLeft.Equals("schema_version", StringComparison.OrdinalIgnoreCase) || zLeft.Equals("user_version", StringComparison.OrdinalIgnoreCase) || zLeft.Equals("freelist_count", StringComparison.OrdinalIgnoreCase) ) { int iCookie; /* Cookie index. 1 for schema-cookie, 6 for user-cookie. */ sqlite3VdbeUsesBtree(v, iDb); switch (zLeft[0]) { case 'f': case 'F': iCookie = BTREE_FREE_PAGE_COUNT; break; case 's': case 'S': iCookie = BTREE_SCHEMA_VERSION; break; default: iCookie = BTREE_USER_VERSION; break; } if (zRight != null && iCookie != BTREE_FREE_PAGE_COUNT) { /* Write the specified cookie value */ VdbeOpList[] setCookie = new VdbeOpList[] { new VdbeOpList( OP_Transaction, 0, 1, 0), /* 0 */ new VdbeOpList( OP_Integer, 0, 1, 0), /* 1 */ new VdbeOpList( OP_SetCookie, 0, 0, 1), /* 2 */ }; int addr = sqlite3VdbeAddOpList(v, ArraySize(setCookie), setCookie); sqlite3VdbeChangeP1(v, addr, iDb); sqlite3VdbeChangeP1(v, addr + 1, sqlite3Atoi(zRight)); sqlite3VdbeChangeP1(v, addr + 2, iDb); sqlite3VdbeChangeP2(v, addr + 2, iCookie); } else { /* Read the specified cookie value */ VdbeOpList[] readCookie = new VdbeOpList[] { new VdbeOpList( OP_Transaction, 0, 0, 0), /* 0 */ new VdbeOpList( OP_ReadCookie, 0, 1, 0), /* 1 */ new VdbeOpList( OP_ResultRow, 1, 1, 0) }; int addr = sqlite3VdbeAddOpList(v, readCookie.Length, readCookie);// ArraySize(readCookie), readCookie); sqlite3VdbeChangeP1(v, addr, iDb); sqlite3VdbeChangeP1(v, addr + 1, iDb); sqlite3VdbeChangeP3(v, addr + 1, iCookie); sqlite3VdbeSetNumCols(v, 1); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, zLeft, SQLITE_TRANSIENT); } } else if (zLeft.Equals("reload_schema", StringComparison.OrdinalIgnoreCase)) { /* force schema reloading*/ sqlite3ResetInternalSchema(db, -1); } else if (zLeft.Equals("file_format", StringComparison.OrdinalIgnoreCase)) { pDb.pSchema.file_format = (u8)atoi(zRight); sqlite3ResetInternalSchema(db, -1); } else #endif // * SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS */ #if !SQLITE_OMIT_COMPILEOPTION_DIAGS /* ** PRAGMA compile_options ** ** Return the names of all compile-time options used in this build, ** one option per row. */ if (zLeft.Equals("compile_options", StringComparison.OrdinalIgnoreCase)) { int i = 0; string zOpt; sqlite3VdbeSetNumCols(v, 1); pParse.nMem = 1; sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "compile_option", SQLITE_STATIC); while ((zOpt = sqlite3_compileoption_get(i++)) != null) { sqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, zOpt, 0); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1); } } else #endif //* SQLITE_OMIT_COMPILEOPTION_DIAGS */ #if !SQLITE_OMIT_WAL /* ** PRAGMA [database.]wal_checkpoint = passive|full|restart ** ** Checkpoint the database. */ if( sqlite3StrICmp(zLeft, "wal_checkpoint")==0 ){ int iBt = (pId2->z?iDb:SQLITE_MAX_ATTACHED); int eMode = SQLITE_CHECKPOINT_PASSIVE; if( zRight ){ if( sqlite3StrICmp(zRight, "full")==0 ){ eMode = SQLITE_CHECKPOINT_FULL; }else if( sqlite3StrICmp(zRight, "restart")==0 ){ eMode = SQLITE_CHECKPOINT_RESTART; } } if( sqlite3ReadSchema(pParse) ) goto pragma_out; sqlite3VdbeSetNumCols(v, 3); pParse->nMem = 3; sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "busy", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "log", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "checkpointed", SQLITE_STATIC); sqlite3VdbeAddOp3(v, OP_Checkpoint, iBt, eMode, 1); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3); }else /* ** PRAGMA wal_autocheckpoint ** PRAGMA wal_autocheckpoint = N ** ** Configure a database connection to automatically checkpoint a database ** after accumulating N frames in the log. Or query for the current value ** of N. */ if( sqlite3StrICmp(zLeft, "wal_autocheckpoint")==0 ){ if( zRight ){ sqlite3_wal_autocheckpoint(db, sqlite3Atoi(zRight)); } returnSingleInt(pParse, "wal_autocheckpoint", db->xWalCallback==sqlite3WalDefaultHook ? SQLITE_PTR_TO_INT(db->pWalArg) : 0); }else #endif #if SQLITE_DEBUG || SQLITE_TEST /* ** Report the current state of file logs for all databases */ if (zLeft.Equals("lock_status", StringComparison.OrdinalIgnoreCase)) { string[] azLockName = { "unlocked", "shared", "reserved", "pending", "exclusive" }; int i; sqlite3VdbeSetNumCols(v, 2); pParse.nMem = 2; sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "database", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "status", SQLITE_STATIC); for (i = 0; i < db.nDb; i++) { Btree pBt; Pager pPager; string zState = "unknown"; sqlite3_int64 j = 0; if (db.aDb[i].zName == null) continue; sqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, db.aDb[i].zName, P4_STATIC); pBt = db.aDb[i].pBt; if (pBt == null || (pPager = sqlite3BtreePager(pBt)) == null) { zState = "closed"; } else if (sqlite3_file_control(db, i != 0 ? db.aDb[i].zName : null, SQLITE_FCNTL_LOCKSTATE, ref j) == SQLITE_OK) { zState = azLockName[j]; } sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, zState, P4_STATIC); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2); } } else #endif #if SQLITE_HAS_CODEC // needed to support key/rekey/hexrekey with pragma cmds if (zLeft.Equals("key", StringComparison.OrdinalIgnoreCase) && !String.IsNullOrEmpty(zRight)) { sqlite3_key(db, zRight, sqlite3Strlen30(zRight)); } else if (zLeft.Equals("rekey", StringComparison.OrdinalIgnoreCase) && !String.IsNullOrEmpty(zRight)) { sqlite3_rekey(db, zRight, sqlite3Strlen30(zRight)); } else if (!String.IsNullOrEmpty(zRight) && (zLeft.Equals("hexkey", StringComparison.OrdinalIgnoreCase) || zLeft.Equals("hexrekey", StringComparison.OrdinalIgnoreCase))) { StringBuilder zKey = new StringBuilder(40); zRight.ToLower(new CultureInfo("en-us")); // expected '0x0102030405060708090a0b0c0d0e0f10' if (zRight.Length != 34) return; for (int i = 2; i < zRight.Length; i += 2) { int h1 = zRight[i]; int h2 = zRight[i + 1]; h1 += 9 * (1 & (h1 >> 6)); h2 += 9 * (1 & (h2 >> 6)); zKey.Append(Convert.ToChar((h2 & 0x0f) | ((h1 & 0xf) << 4))); } if ((zLeft[3] & 0xf) == 0xb) { sqlite3_key(db, zKey.ToString(), zKey.Length); } else { sqlite3_rekey(db, zKey.ToString(), zKey.Length); } } else #endif #if SQLITE_HAS_CODEC || SQLITE_ENABLE_CEROD if (zLeft.Equals("activate_extensions", StringComparison.OrdinalIgnoreCase)) { #if SQLITE_HAS_CODEC if (!String.IsNullOrEmpty(zRight) && zRight.Length > 4 && sqlite3StrNICmp(zRight, "see-", 4) == 0) { sqlite3_activate_see(zRight.Substring(4)); } #endif #if SQLITE_ENABLE_CEROD if( !String.IsNullOrEmpty( zRight ) && zRight.StartsWith("cerod-", StringComparison.OrdinalIgnoreCase)) { sqlite3_activate_cerod( zRight.Substring( 6 )); } #endif } else #endif { /* Empty ELSE clause */ } /* ** Reset the safety level, in case the fullfsync flag or synchronous ** setting changed. */ #if !SQLITE_OMIT_PAGER_PRAGMAS if (db.autoCommit != 0) { sqlite3BtreeSetSafetyLevel(pDb.pBt, pDb.safety_level, ((db.flags & SQLITE_FullFSync) != 0) ? 1 : 0, ((db.flags & SQLITE_CkptFullFSync) != 0) ? 1 : 0); } #endif pragma_out: sqlite3DbFree(db, ref zLeft); sqlite3DbFree(db, ref zRight); ; } #endif // * SQLITE_OMIT_PRAGMA } }