/* ** 2003 September 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 is the header file for information that is private to the ** VDBE. This information used to all be at the top of the single ** source code file "vdbe.c". When that file became too big (over ** 6000 lines long) it was split up into several smaller files and ** this header information was factored out. */ #ifndef SQLITE_VDBEINT_H #define SQLITE_VDBEINT_H /* ** The maximum number of times that a statement will try to reparse ** itself before giving up and returning SQLITE_SCHEMA. */ #ifndef SQLITE_MAX_SCHEMA_RETRY # define SQLITE_MAX_SCHEMA_RETRY 50 #endif /* ** VDBE_DISPLAY_P4 is true or false depending on whether or not the ** "explain" P4 display logic is enabled. */ #if !defined(SQLITE_OMIT_EXPLAIN) || !defined(NDEBUG) \ || defined(VDBE_PROFILE) || defined(SQLITE_DEBUG) \ || defined(SQLITE_ENABLE_BYTECODE_VTAB) # define VDBE_DISPLAY_P4 1 #else # define VDBE_DISPLAY_P4 0 #endif /* ** SQL is translated into a sequence of instructions to be ** executed by a virtual machine. Each instruction is an instance ** of the following structure. */ typedef struct VdbeOp Op; /* ** Boolean values */ typedef unsigned Bool; /* Opaque type used by code in vdbesort.c */ typedef struct VdbeSorter VdbeSorter; /* Elements of the linked list at Vdbe.pAuxData */ typedef struct AuxData AuxData; /* Types of VDBE cursors */ #define CURTYPE_BTREE 0 #define CURTYPE_SORTER 1 #define CURTYPE_VTAB 2 #define CURTYPE_PSEUDO 3 /* ** A VdbeCursor is an superclass (a wrapper) for various cursor objects: ** ** * A b-tree cursor ** - In the main database or in an ephemeral database ** - On either an index or a table ** * A sorter ** * A virtual table ** * A one-row "pseudotable" stored in a single register */ typedef struct VdbeCursor VdbeCursor; struct VdbeCursor { u8 eCurType; /* One of the CURTYPE_* values above */ i8 iDb; /* Index of cursor database in db->aDb[] */ u8 nullRow; /* True if pointing to a row with no data */ u8 deferredMoveto; /* A call to sqlite3BtreeMoveto() is needed */ u8 isTable; /* True for rowid tables. False for indexes */ #ifdef SQLITE_DEBUG u8 seekOp; /* Most recent seek operation on this cursor */ u8 wrFlag; /* The wrFlag argument to sqlite3BtreeCursor() */ #endif Bool isEphemeral:1; /* True for an ephemeral table */ Bool useRandomRowid:1; /* Generate new record numbers semi-randomly */ Bool isOrdered:1; /* True if the table is not BTREE_UNORDERED */ Bool noReuse:1; /* OpenEphemeral may not reuse this cursor */ u16 seekHit; /* See the OP_SeekHit and OP_IfNoHope opcodes */ union { /* pBtx for isEphermeral. pAltMap otherwise */ Btree *pBtx; /* Separate file holding temporary table */ u32 *aAltMap; /* Mapping from table to index column numbers */ } ub; i64 seqCount; /* Sequence counter */ /* Cached OP_Column parse information is only valid if cacheStatus matches ** Vdbe.cacheCtr. Vdbe.cacheCtr will never take on the value of ** CACHE_STALE (0) and so setting cacheStatus=CACHE_STALE guarantees that ** the cache is out of date. */ u32 cacheStatus; /* Cache is valid if this matches Vdbe.cacheCtr */ int seekResult; /* Result of previous sqlite3BtreeMoveto() or 0 ** if there have been no prior seeks on the cursor. */ /* seekResult does not distinguish between "no seeks have ever occurred ** on this cursor" and "the most recent seek was an exact match". ** For CURTYPE_PSEUDO, seekResult is the register holding the record */ /* When a new VdbeCursor is allocated, only the fields above are zeroed. ** The fields that follow are uninitialized, and must be individually ** initialized prior to first use. */ VdbeCursor *pAltCursor; /* Associated index cursor from which to read */ union { BtCursor *pCursor; /* CURTYPE_BTREE or _PSEUDO. Btree cursor */ sqlite3_vtab_cursor *pVCur; /* CURTYPE_VTAB. Vtab cursor */ VdbeSorter *pSorter; /* CURTYPE_SORTER. Sorter object */ } uc; KeyInfo *pKeyInfo; /* Info about index keys needed by index cursors */ u32 iHdrOffset; /* Offset to next unparsed byte of the header */ Pgno pgnoRoot; /* Root page of the open btree cursor */ i16 nField; /* Number of fields in the header */ u16 nHdrParsed; /* Number of header fields parsed so far */ i64 movetoTarget; /* Argument to the deferred sqlite3BtreeMoveto() */ u32 *aOffset; /* Pointer to aType[nField] */ const u8 *aRow; /* Data for the current row, if all on one page */ u32 payloadSize; /* Total number of bytes in the record */ u32 szRow; /* Byte available in aRow */ #ifdef SQLITE_ENABLE_COLUMN_USED_MASK u64 maskUsed; /* Mask of columns used by this cursor */ #endif /* 2*nField extra array elements allocated for aType[], beyond the one ** static element declared in the structure. nField total array slots for ** aType[] and nField+1 array slots for aOffset[] */ u32 aType[1]; /* Type values record decode. MUST BE LAST */ }; /* Return true if P is a null-only cursor */ #define IsNullCursor(P) \ ((P)->eCurType==CURTYPE_PSEUDO && (P)->nullRow && (P)->seekResult==0) /* ** A value for VdbeCursor.cacheStatus that means the cache is always invalid. */ #define CACHE_STALE 0 /* ** When a sub-program is executed (OP_Program), a structure of this type ** is allocated to store the current value of the program counter, as ** well as the current memory cell array and various other frame specific ** values stored in the Vdbe struct. When the sub-program is finished, ** these values are copied back to the Vdbe from the VdbeFrame structure, ** restoring the state of the VM to as it was before the sub-program ** began executing. ** ** The memory for a VdbeFrame object is allocated and managed by a memory ** cell in the parent (calling) frame. When the memory cell is deleted or ** overwritten, the VdbeFrame object is not freed immediately. Instead, it ** is linked into the Vdbe.pDelFrame list. The contents of the Vdbe.pDelFrame ** list is deleted when the VM is reset in VdbeHalt(). The reason for doing ** this instead of deleting the VdbeFrame immediately is to avoid recursive ** calls to sqlite3VdbeMemRelease() when the memory cells belonging to the ** child frame are released. ** ** The currently executing frame is stored in Vdbe.pFrame. Vdbe.pFrame is ** set to NULL if the currently executing frame is the main program. */ typedef struct VdbeFrame VdbeFrame; struct VdbeFrame { Vdbe *v; /* VM this frame belongs to */ VdbeFrame *pParent; /* Parent of this frame, or NULL if parent is main */ Op *aOp; /* Program instructions for parent frame */ Mem *aMem; /* Array of memory cells for parent frame */ VdbeCursor **apCsr; /* Array of Vdbe cursors for parent frame */ u8 *aOnce; /* Bitmask used by OP_Once */ void *token; /* Copy of SubProgram.token */ i64 lastRowid; /* Last insert rowid (sqlite3.lastRowid) */ AuxData *pAuxData; /* Linked list of auxdata allocations */ #if SQLITE_DEBUG u32 iFrameMagic; /* magic number for sanity checking */ #endif int nCursor; /* Number of entries in apCsr */ int pc; /* Program Counter in parent (calling) frame */ int nOp; /* Size of aOp array */ int nMem; /* Number of entries in aMem */ int nChildMem; /* Number of memory cells for child frame */ int nChildCsr; /* Number of cursors for child frame */ i64 nChange; /* Statement changes (Vdbe.nChange) */ i64 nDbChange; /* Value of db->nChange */ }; /* Magic number for sanity checking on VdbeFrame objects */ #define SQLITE_FRAME_MAGIC 0x879fb71e /* ** Return a pointer to the array of registers allocated for use ** by a VdbeFrame. */ #define VdbeFrameMem(p) ((Mem *)&((u8 *)p)[ROUND8(sizeof(VdbeFrame))]) /* ** Internally, the vdbe manipulates nearly all SQL values as Mem ** structures. Each Mem struct may cache multiple representations (string, ** integer etc.) of the same value. */ struct sqlite3_value { union MemValue { double r; /* Real value used when MEM_Real is set in flags */ i64 i; /* Integer value used when MEM_Int is set in flags */ int nZero; /* Extra zero bytes when MEM_Zero and MEM_Blob set */ const char *zPType; /* Pointer type when MEM_Term|MEM_Subtype|MEM_Null */ FuncDef *pDef; /* Used only when flags==MEM_Agg */ } u; char *z; /* String or BLOB value */ int n; /* Number of characters in string value, excluding '\0' */ u16 flags; /* Some combination of MEM_Null, MEM_Str, MEM_Dyn, etc. */ u8 enc; /* SQLITE_UTF8, SQLITE_UTF16BE, SQLITE_UTF16LE */ u8 eSubtype; /* Subtype for this value */ /* ShallowCopy only needs to copy the information above */ sqlite3 *db; /* The associated database connection */ int szMalloc; /* Size of the zMalloc allocation */ u32 uTemp; /* Transient storage for serial_type in OP_MakeRecord */ char *zMalloc; /* Space to hold MEM_Str or MEM_Blob if szMalloc>0 */ void (*xDel)(void*);/* Destructor for Mem.z - only valid if MEM_Dyn */ #ifdef SQLITE_DEBUG Mem *pScopyFrom; /* This Mem is a shallow copy of pScopyFrom */ u16 mScopyFlags; /* flags value immediately after the shallow copy */ #endif }; /* ** Size of struct Mem not including the Mem.zMalloc member or anything that ** follows. */ #define MEMCELLSIZE offsetof(Mem,db) /* One or more of the following flags are set to indicate the ** representations of the value stored in the Mem struct. ** ** * MEM_Null An SQL NULL value ** ** * MEM_Null|MEM_Zero An SQL NULL with the virtual table ** UPDATE no-change flag set ** ** * MEM_Null|MEM_Term| An SQL NULL, but also contains a ** MEM_Subtype pointer accessible using ** sqlite3_value_pointer(). ** ** * MEM_Null|MEM_Cleared Special SQL NULL that compares non-equal ** to other NULLs even using the IS operator. ** ** * MEM_Str A string, stored in Mem.z with ** length Mem.n. Zero-terminated if ** MEM_Term is set. This flag is ** incompatible with MEM_Blob and ** MEM_Null, but can appear with MEM_Int, ** MEM_Real, and MEM_IntReal. ** ** * MEM_Blob A blob, stored in Mem.z length Mem.n. ** Incompatible with MEM_Str, MEM_Null, ** MEM_Int, MEM_Real, and MEM_IntReal. ** ** * MEM_Blob|MEM_Zero A blob in Mem.z of length Mem.n plus ** MEM.u.i extra 0x00 bytes at the end. ** ** * MEM_Int Integer stored in Mem.u.i. ** ** * MEM_Real Real stored in Mem.u.r. ** ** * MEM_IntReal Real stored as an integer in Mem.u.i. ** ** If the MEM_Null flag is set, then the value is an SQL NULL value. ** For a pointer type created using sqlite3_bind_pointer() or ** sqlite3_result_pointer() the MEM_Term and MEM_Subtype flags are also set. ** ** If the MEM_Str flag is set then Mem.z points at a string representation. ** Usually this is encoded in the same unicode encoding as the main ** database (see below for exceptions). If the MEM_Term flag is also ** set, then the string is nul terminated. The MEM_Int and MEM_Real ** flags may coexist with the MEM_Str flag. */ #define MEM_Undefined 0x0000 /* Value is undefined */ #define MEM_Null 0x0001 /* Value is NULL (or a pointer) */ #define MEM_Str 0x0002 /* Value is a string */ #define MEM_Int 0x0004 /* Value is an integer */ #define MEM_Real 0x0008 /* Value is a real number */ #define MEM_Blob 0x0010 /* Value is a BLOB */ #define MEM_IntReal 0x0020 /* MEM_Int that stringifies like MEM_Real */ #define MEM_AffMask 0x003f /* Mask of affinity bits */ /* Extra bits that modify the meanings of the core datatypes above */ #define MEM_FromBind 0x0040 /* Value originates from sqlite3_bind() */ /* 0x0080 // Available */ #define MEM_Cleared 0x0100 /* NULL set by OP_Null, not from data */ #define MEM_Term 0x0200 /* String in Mem.z is zero terminated */ #define MEM_Zero 0x0400 /* Mem.i contains count of 0s appended to blob */ #define MEM_Subtype 0x0800 /* Mem.eSubtype is valid */ #define MEM_TypeMask 0x0dbf /* Mask of type bits */ /* Bits that determine the storage for Mem.z for a string or blob or ** aggregate accumulator. */ #define MEM_Dyn 0x1000 /* Need to call Mem.xDel() on Mem.z */ #define MEM_Static 0x2000 /* Mem.z points to a static string */ #define MEM_Ephem 0x4000 /* Mem.z points to an ephemeral string */ #define MEM_Agg 0x8000 /* Mem.z points to an agg function context */ /* Return TRUE if Mem X contains dynamically allocated content - anything ** that needs to be deallocated to avoid a leak. */ #define VdbeMemDynamic(X) \ (((X)->flags&(MEM_Agg|MEM_Dyn))!=0) /* ** Clear any existing type flags from a Mem and replace them with f */ #define MemSetTypeFlag(p, f) \ ((p)->flags = ((p)->flags&~(MEM_TypeMask|MEM_Zero))|f) /* ** True if Mem X is a NULL-nochng type. */ #define MemNullNochng(X) \ (((X)->flags&MEM_TypeMask)==(MEM_Null|MEM_Zero) \ && (X)->n==0 && (X)->u.nZero==0) /* ** Return true if a memory cell has been initialized and is valid. ** is for use inside assert() statements only. ** ** A Memory cell is initialized if at least one of the ** MEM_Null, MEM_Str, MEM_Int, MEM_Real, MEM_Blob, or MEM_IntReal bits ** is set. It is "undefined" if all those bits are zero. */ #ifdef SQLITE_DEBUG #define memIsValid(M) ((M)->flags & MEM_AffMask)!=0 #endif /* ** Each auxiliary data pointer stored by a user defined function ** implementation calling sqlite3_set_auxdata() is stored in an instance ** of this structure. All such structures associated with a single VM ** are stored in a linked list headed at Vdbe.pAuxData. All are destroyed ** when the VM is halted (if not before). */ struct AuxData { int iAuxOp; /* Instruction number of OP_Function opcode */ int iAuxArg; /* Index of function argument. */ void *pAux; /* Aux data pointer */ void (*xDeleteAux)(void*); /* Destructor for the aux data */ AuxData *pNextAux; /* Next element in list */ }; /* ** The "context" argument for an installable function. A pointer to an ** instance of this structure is the first argument to the routines used ** implement the SQL functions. ** ** There is a typedef for this structure in sqlite.h. So all routines, ** even the public interface to SQLite, can use a pointer to this structure. ** But this file is the only place where the internal details of this ** structure are known. ** ** This structure is defined inside of vdbeInt.h because it uses substructures ** (Mem) which are only defined there. */ struct sqlite3_context { Mem *pOut; /* The return value is stored here */ FuncDef *pFunc; /* Pointer to function information */ Mem *pMem; /* Memory cell used to store aggregate context */ Vdbe *pVdbe; /* The VM that owns this context */ int iOp; /* Instruction number of OP_Function */ int isError; /* Error code returned by the function. */ u8 enc; /* Encoding to use for results */ u8 skipFlag; /* Skip accumulator loading if true */ u8 argc; /* Number of arguments */ sqlite3_value *argv[1]; /* Argument set */ }; /* A bitfield type for use inside of structures. Always follow with :N where ** N is the number of bits. */ typedef unsigned bft; /* Bit Field Type */ /* The ScanStatus object holds a single value for the ** sqlite3_stmt_scanstatus() interface. ** ** aAddrRange[]: ** This array is used by ScanStatus elements associated with EQP ** notes that make an SQLITE_SCANSTAT_NCYCLE value available. It is ** an array of up to 3 ranges of VM addresses for which the Vdbe.anCycle[] ** values should be summed to calculate the NCYCLE value. Each pair of ** integer addresses is a start and end address (both inclusive) for a range ** instructions. A start value of 0 indicates an empty range. */ typedef struct ScanStatus ScanStatus; struct ScanStatus { int addrExplain; /* OP_Explain for loop */ int aAddrRange[6]; int addrLoop; /* Address of "loops" counter */ int addrVisit; /* Address of "rows visited" counter */ int iSelectID; /* The "Select-ID" for this loop */ LogEst nEst; /* Estimated output rows per loop */ char *zName; /* Name of table or index */ }; /* The DblquoteStr object holds the text of a double-quoted ** string for a prepared statement. A linked list of these objects ** is constructed during statement parsing and is held on Vdbe.pDblStr. ** When computing a normalized SQL statement for an SQL statement, that ** list is consulted for each double-quoted identifier to see if the ** identifier should really be a string literal. */ typedef struct DblquoteStr DblquoteStr; struct DblquoteStr { DblquoteStr *pNextStr; /* Next string literal in the list */ char z[8]; /* Dequoted value for the string */ }; /* ** An instance of the virtual machine. This structure contains the complete ** state of the virtual machine. ** ** The "sqlite3_stmt" structure pointer that is returned by sqlite3_prepare() ** is really a pointer to an instance of this structure. */ struct Vdbe { sqlite3 *db; /* The database connection that owns this statement */ Vdbe **ppVPrev,*pVNext; /* Linked list of VDBEs with the same Vdbe.db */ Parse *pParse; /* Parsing context used to create this Vdbe */ ynVar nVar; /* Number of entries in aVar[] */ int nMem; /* Number of memory locations currently allocated */ int nCursor; /* Number of slots in apCsr[] */ u32 cacheCtr; /* VdbeCursor row cache generation counter */ int pc; /* The program counter */ int rc; /* Value to return */ i64 nChange; /* Number of db changes made since last reset */ int iStatement; /* Statement number (or 0 if has no opened stmt) */ i64 iCurrentTime; /* Value of julianday('now') for this statement */ i64 nFkConstraint; /* Number of imm. FK constraints this VM */ i64 nStmtDefCons; /* Number of def. constraints when stmt started */ i64 nStmtDefImmCons; /* Number of def. imm constraints when stmt started */ Mem *aMem; /* The memory locations */ Mem **apArg; /* Arguments to currently executing user function */ VdbeCursor **apCsr; /* One element of this array for each open cursor */ Mem *aVar; /* Values for the OP_Variable opcode. */ /* When allocating a new Vdbe object, all of the fields below should be ** initialized to zero or NULL */ Op *aOp; /* Space to hold the virtual machine's program */ int nOp; /* Number of instructions in the program */ int nOpAlloc; /* Slots allocated for aOp[] */ Mem *aColName; /* Column names to return */ Mem *pResultRow; /* Current output row */ char *zErrMsg; /* Error message written here */ VList *pVList; /* Name of variables */ #ifndef SQLITE_OMIT_TRACE i64 startTime; /* Time when query started - used for profiling */ #endif #ifdef SQLITE_DEBUG int rcApp; /* errcode set by sqlite3_result_error_code() */ u32 nWrite; /* Number of write operations that have occurred */ #endif u16 nResColumn; /* Number of columns in one row of the result set */ u8 errorAction; /* Recovery action to do in case of an error */ u8 minWriteFileFormat; /* Minimum file format for writable database files */ u8 prepFlags; /* SQLITE_PREPARE_* flags */ u8 eVdbeState; /* On of the VDBE_*_STATE values */ bft expired:2; /* 1: recompile VM immediately 2: when convenient */ bft explain:2; /* True if EXPLAIN present on SQL command */ bft changeCntOn:1; /* True to update the change-counter */ bft usesStmtJournal:1; /* True if uses a statement journal */ bft readOnly:1; /* True for statements that do not write */ bft bIsReader:1; /* True for statements that read */ yDbMask btreeMask; /* Bitmask of db->aDb[] entries referenced */ yDbMask lockMask; /* Subset of btreeMask that requires a lock */ u32 aCounter[9]; /* Counters used by sqlite3_stmt_status() */ char *zSql; /* Text of the SQL statement that generated this */ #ifdef SQLITE_ENABLE_NORMALIZE char *zNormSql; /* Normalization of the associated SQL statement */ DblquoteStr *pDblStr; /* List of double-quoted string literals */ #endif void *pFree; /* Free this when deleting the vdbe */ VdbeFrame *pFrame; /* Parent frame */ VdbeFrame *pDelFrame; /* List of frame objects to free on VM reset */ int nFrame; /* Number of frames in pFrame list */ u32 expmask; /* Binding to these vars invalidates VM */ SubProgram *pProgram; /* Linked list of all sub-programs used by VM */ AuxData *pAuxData; /* Linked list of auxdata allocations */ #ifdef SQLITE_ENABLE_STMT_SCANSTATUS int nScan; /* Entries in aScan[] */ ScanStatus *aScan; /* Scan definitions for sqlite3_stmt_scanstatus() */ #endif }; /* ** The following are allowed values for Vdbe.eVdbeState */ #define VDBE_INIT_STATE 0 /* Prepared statement under construction */ #define VDBE_READY_STATE 1 /* Ready to run but not yet started */ #define VDBE_RUN_STATE 2 /* Run in progress */ #define VDBE_HALT_STATE 3 /* Finished. Need reset() or finalize() */ /* ** Structure used to store the context required by the ** sqlite3_preupdate_*() API functions. */ struct PreUpdate { Vdbe *v; VdbeCursor *pCsr; /* Cursor to read old values from */ int op; /* One of SQLITE_INSERT, UPDATE, DELETE */ u8 *aRecord; /* old.* database record */ KeyInfo keyinfo; UnpackedRecord *pUnpacked; /* Unpacked version of aRecord[] */ UnpackedRecord *pNewUnpacked; /* Unpacked version of new.* record */ int iNewReg; /* Register for new.* values */ int iBlobWrite; /* Value returned by preupdate_blobwrite() */ i64 iKey1; /* First key value passed to hook */ i64 iKey2; /* Second key value passed to hook */ Mem *aNew; /* Array of new.* values */ Table *pTab; /* Schema object being upated */ Index *pPk; /* PK index if pTab is WITHOUT ROWID */ }; /* ** An instance of this object is used to pass an vector of values into ** OP_VFilter, the xFilter method of a virtual table. The vector is the ** set of values on the right-hand side of an IN constraint. ** ** The value as passed into xFilter is an sqlite3_value with a "pointer" ** type, such as is generated by sqlite3_result_pointer() and read by ** sqlite3_value_pointer. Such values have MEM_Term|MEM_Subtype|MEM_Null ** and a subtype of 'p'. The sqlite3_vtab_in_first() and _next() interfaces ** know how to use this object to step through all the values in the ** right operand of the IN constraint. */ typedef struct ValueList ValueList; struct ValueList { BtCursor *pCsr; /* An ephemeral table holding all values */ sqlite3_value *pOut; /* Register to hold each decoded output value */ }; /* Size of content associated with serial types that fit into a ** single-byte varint. */ #ifndef SQLITE_AMALGAMATION extern const u8 sqlite3SmallTypeSizes[]; #endif /* ** Function prototypes */ void sqlite3VdbeError(Vdbe*, const char *, ...); void sqlite3VdbeFreeCursor(Vdbe *, VdbeCursor*); void sqlite3VdbeFreeCursorNN(Vdbe*,VdbeCursor*); void sqliteVdbePopStack(Vdbe*,int); int SQLITE_NOINLINE sqlite3VdbeHandleMovedCursor(VdbeCursor *p); int SQLITE_NOINLINE sqlite3VdbeFinishMoveto(VdbeCursor*); int sqlite3VdbeCursorRestore(VdbeCursor*); u32 sqlite3VdbeSerialTypeLen(u32); u8 sqlite3VdbeOneByteSerialTypeLen(u8); #ifdef SQLITE_MIXED_ENDIAN_64BIT_FLOAT u64 sqlite3FloatSwap(u64 in); # define swapMixedEndianFloat(X) X = sqlite3FloatSwap(X) #else # define swapMixedEndianFloat(X) #endif void sqlite3VdbeSerialGet(const unsigned char*, u32, Mem*); void sqlite3VdbeDeleteAuxData(sqlite3*, AuxData**, int, int); int sqlite2BtreeKeyCompare(BtCursor *, const void *, int, int, int *); int sqlite3VdbeIdxKeyCompare(sqlite3*,VdbeCursor*,UnpackedRecord*,int*); int sqlite3VdbeIdxRowid(sqlite3*, BtCursor*, i64*); int sqlite3VdbeExec(Vdbe*); #if !defined(SQLITE_OMIT_EXPLAIN) || defined(SQLITE_ENABLE_BYTECODE_VTAB) int sqlite3VdbeNextOpcode(Vdbe*,Mem*,int,int*,int*,Op**); char *sqlite3VdbeDisplayP4(sqlite3*,Op*); #endif #if defined(SQLITE_ENABLE_EXPLAIN_COMMENTS) char *sqlite3VdbeDisplayComment(sqlite3*,const Op*,const char*); #endif #if !defined(SQLITE_OMIT_EXPLAIN) int sqlite3VdbeList(Vdbe*); #endif int sqlite3VdbeHalt(Vdbe*); int sqlite3VdbeChangeEncoding(Mem *, int); int sqlite3VdbeMemTooBig(Mem*); int sqlite3VdbeMemCopy(Mem*, const Mem*); void sqlite3VdbeMemShallowCopy(Mem*, const Mem*, int); void sqlite3VdbeMemMove(Mem*, Mem*); int sqlite3VdbeMemNulTerminate(Mem*); int sqlite3VdbeMemSetStr(Mem*, const char*, i64, u8, void(*)(void*)); void sqlite3VdbeMemSetInt64(Mem*, i64); #ifdef SQLITE_OMIT_FLOATING_POINT # define sqlite3VdbeMemSetDouble sqlite3VdbeMemSetInt64 #else void sqlite3VdbeMemSetDouble(Mem*, double); #endif void sqlite3VdbeMemSetPointer(Mem*, void*, const char*, void(*)(void*)); void sqlite3VdbeMemInit(Mem*,sqlite3*,u16); void sqlite3VdbeMemSetNull(Mem*); #ifndef SQLITE_OMIT_INCRBLOB void sqlite3VdbeMemSetZeroBlob(Mem*,int); #else int sqlite3VdbeMemSetZeroBlob(Mem*,int); #endif #ifdef SQLITE_DEBUG int sqlite3VdbeMemIsRowSet(const Mem*); #endif int sqlite3VdbeMemSetRowSet(Mem*); int sqlite3VdbeMemMakeWriteable(Mem*); int sqlite3VdbeMemStringify(Mem*, u8, u8); int sqlite3IntFloatCompare(i64,double); i64 sqlite3VdbeIntValue(const Mem*); int sqlite3VdbeMemIntegerify(Mem*); double sqlite3VdbeRealValue(Mem*); int sqlite3VdbeBooleanValue(Mem*, int ifNull); void sqlite3VdbeIntegerAffinity(Mem*); int sqlite3VdbeMemRealify(Mem*); int sqlite3VdbeMemNumerify(Mem*); int sqlite3VdbeMemCast(Mem*,u8,u8); int sqlite3VdbeMemFromBtree(BtCursor*,u32,u32,Mem*); int sqlite3VdbeMemFromBtreeZeroOffset(BtCursor*,u32,Mem*); void sqlite3VdbeMemRelease(Mem *p); void sqlite3VdbeMemReleaseMalloc(Mem*p); int sqlite3VdbeMemFinalize(Mem*, FuncDef*); #ifndef SQLITE_OMIT_WINDOWFUNC int sqlite3VdbeMemAggValue(Mem*, Mem*, FuncDef*); #endif #if !defined(SQLITE_OMIT_EXPLAIN) || defined(SQLITE_ENABLE_BYTECODE_VTAB) const char *sqlite3OpcodeName(int); #endif int sqlite3VdbeMemGrow(Mem *pMem, int n, int preserve); int sqlite3VdbeMemClearAndResize(Mem *pMem, int n); int sqlite3VdbeCloseStatement(Vdbe *, int); #ifdef SQLITE_DEBUG int sqlite3VdbeFrameIsValid(VdbeFrame*); #endif void sqlite3VdbeFrameMemDel(void*); /* Destructor on Mem */ void sqlite3VdbeFrameDelete(VdbeFrame*); /* Actually deletes the Frame */ int sqlite3VdbeFrameRestore(VdbeFrame *); #ifdef SQLITE_ENABLE_PREUPDATE_HOOK void sqlite3VdbePreUpdateHook( Vdbe*,VdbeCursor*,int,const char*,Table*,i64,int,int); #endif int sqlite3VdbeTransferError(Vdbe *p); int sqlite3VdbeSorterInit(sqlite3 *, int, VdbeCursor *); void sqlite3VdbeSorterReset(sqlite3 *, VdbeSorter *); void sqlite3VdbeSorterClose(sqlite3 *, VdbeCursor *); int sqlite3VdbeSorterRowkey(const VdbeCursor *, Mem *); int sqlite3VdbeSorterNext(sqlite3 *, const VdbeCursor *); int sqlite3VdbeSorterRewind(const VdbeCursor *, int *); int sqlite3VdbeSorterWrite(const VdbeCursor *, Mem *); int sqlite3VdbeSorterCompare(const VdbeCursor *, Mem *, int, int *); void sqlite3VdbeValueListFree(void*); #ifdef SQLITE_DEBUG void sqlite3VdbeIncrWriteCounter(Vdbe*, VdbeCursor*); void sqlite3VdbeAssertAbortable(Vdbe*); #else # define sqlite3VdbeIncrWriteCounter(V,C) # define sqlite3VdbeAssertAbortable(V) #endif #if !defined(SQLITE_OMIT_SHARED_CACHE) void sqlite3VdbeEnter(Vdbe*); #else # define sqlite3VdbeEnter(X) #endif #if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE>0 void sqlite3VdbeLeave(Vdbe*); #else # define sqlite3VdbeLeave(X) #endif #ifdef SQLITE_DEBUG void sqlite3VdbeMemAboutToChange(Vdbe*,Mem*); int sqlite3VdbeCheckMemInvariants(Mem*); #endif #ifndef SQLITE_OMIT_FOREIGN_KEY int sqlite3VdbeCheckFk(Vdbe *, int); #else # define sqlite3VdbeCheckFk(p,i) 0 #endif #ifdef SQLITE_DEBUG void sqlite3VdbePrintSql(Vdbe*); void sqlite3VdbeMemPrettyPrint(Mem *pMem, StrAccum *pStr); #endif #ifndef SQLITE_OMIT_UTF16 int sqlite3VdbeMemTranslate(Mem*, u8); int sqlite3VdbeMemHandleBom(Mem *pMem); #endif #ifndef SQLITE_OMIT_INCRBLOB int sqlite3VdbeMemExpandBlob(Mem *); #define ExpandBlob(P) (((P)->flags&MEM_Zero)?sqlite3VdbeMemExpandBlob(P):0) #else #define sqlite3VdbeMemExpandBlob(x) SQLITE_OK #define ExpandBlob(P) SQLITE_OK #endif #endif /* !defined(SQLITE_VDBEINT_H) */