drh
fbd8cbdcf5
bulk zeroed on allocation are grouped at the beginning, and the memset() only runs over those fields that really need it. FossilOrigin-Name: 8165f88bb1d40693d67005a8d5dc499085f64b91
552 lines
24 KiB
C
552 lines
24 KiB
C
/*
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** 2003 September 6
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**
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** The author disclaims copyright to this source code. In place of
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** a legal notice, here is a blessing:
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**
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** May you do good and not evil.
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** May you find forgiveness for yourself and forgive others.
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** May you share freely, never taking more than you give.
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**
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*************************************************************************
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** This is the header file for information that is private to the
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** VDBE. This information used to all be at the top of the single
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** source code file "vdbe.c". When that file became too big (over
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** 6000 lines long) it was split up into several smaller files and
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** this header information was factored out.
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*/
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#ifndef SQLITE_VDBEINT_H
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#define SQLITE_VDBEINT_H
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/*
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** The maximum number of times that a statement will try to reparse
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** itself before giving up and returning SQLITE_SCHEMA.
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*/
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#ifndef SQLITE_MAX_SCHEMA_RETRY
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# define SQLITE_MAX_SCHEMA_RETRY 50
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#endif
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/*
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** VDBE_DISPLAY_P4 is true or false depending on whether or not the
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** "explain" P4 display logic is enabled.
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*/
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#if !defined(SQLITE_OMIT_EXPLAIN) || !defined(NDEBUG) \
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|| defined(VDBE_PROFILE) || defined(SQLITE_DEBUG)
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# define VDBE_DISPLAY_P4 1
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#else
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# define VDBE_DISPLAY_P4 0
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#endif
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/*
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** SQL is translated into a sequence of instructions to be
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** executed by a virtual machine. Each instruction is an instance
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** of the following structure.
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*/
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typedef struct VdbeOp Op;
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/*
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** Boolean values
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*/
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typedef unsigned Bool;
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/* Opaque type used by code in vdbesort.c */
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typedef struct VdbeSorter VdbeSorter;
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/* Elements of the linked list at Vdbe.pAuxData */
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typedef struct AuxData AuxData;
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/* Types of VDBE cursors */
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#define CURTYPE_BTREE 0
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#define CURTYPE_SORTER 1
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#define CURTYPE_VTAB 2
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#define CURTYPE_PSEUDO 3
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/*
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** A VdbeCursor is an superclass (a wrapper) for various cursor objects:
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**
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** * A b-tree cursor
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** - In the main database or in an ephemeral database
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** - On either an index or a table
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** * A sorter
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** * A virtual table
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** * A one-row "pseudotable" stored in a single register
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*/
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typedef struct VdbeCursor VdbeCursor;
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struct VdbeCursor {
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u8 eCurType; /* One of the CURTYPE_* values above */
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i8 iDb; /* Index of cursor database in db->aDb[] (or -1) */
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u8 nullRow; /* True if pointing to a row with no data */
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u8 deferredMoveto; /* A call to sqlite3BtreeMoveto() is needed */
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u8 isTable; /* True for rowid tables. False for indexes */
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#ifdef SQLITE_DEBUG
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u8 seekOp; /* Most recent seek operation on this cursor */
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u8 wrFlag; /* The wrFlag argument to sqlite3BtreeCursor() */
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#endif
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Bool isEphemeral:1; /* True for an ephemeral table */
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Bool useRandomRowid:1; /* Generate new record numbers semi-randomly */
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Bool isOrdered:1; /* True if the table is not BTREE_UNORDERED */
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Btree *pBtx; /* Separate file holding temporary table */
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i64 seqCount; /* Sequence counter */
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int *aAltMap; /* Mapping from table to index column numbers */
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/* Cached OP_Column parse information is only valid if cacheStatus matches
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** Vdbe.cacheCtr. Vdbe.cacheCtr will never take on the value of
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** CACHE_STALE (0) and so setting cacheStatus=CACHE_STALE guarantees that
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** the cache is out of date. */
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u32 cacheStatus; /* Cache is valid if this matches Vdbe.cacheCtr */
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int seekResult; /* Result of previous sqlite3BtreeMoveto() or 0
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** if there have been no prior seeks on the cursor. */
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/* NB: seekResult does not distinguish between "no seeks have ever occurred
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** on this cursor" and "the most recent seek was an exact match". */
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/* When a new VdbeCursor is allocated, only the fields above are zeroed.
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** The fields that follow are uninitialized, and must be individually
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** initialized prior to first use. */
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VdbeCursor *pAltCursor; /* Associated index cursor from which to read */
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union {
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BtCursor *pCursor; /* CURTYPE_BTREE. Btree cursor */
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sqlite3_vtab_cursor *pVCur; /* CURTYPE_VTAB. Vtab cursor */
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int pseudoTableReg; /* CURTYPE_PSEUDO. Reg holding content. */
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VdbeSorter *pSorter; /* CURTYPE_SORTER. Sorter object */
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} uc;
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KeyInfo *pKeyInfo; /* Info about index keys needed by index cursors */
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u32 iHdrOffset; /* Offset to next unparsed byte of the header */
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Pgno pgnoRoot; /* Root page of the open btree cursor */
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i16 nField; /* Number of fields in the header */
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u16 nHdrParsed; /* Number of header fields parsed so far */
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i64 movetoTarget; /* Argument to the deferred sqlite3BtreeMoveto() */
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u32 *aOffset; /* Pointer to aType[nField] */
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const u8 *aRow; /* Data for the current row, if all on one page */
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u32 payloadSize; /* Total number of bytes in the record */
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u32 szRow; /* Byte available in aRow */
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#ifdef SQLITE_ENABLE_COLUMN_USED_MASK
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u64 maskUsed; /* Mask of columns used by this cursor */
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#endif
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/* 2*nField extra array elements allocated for aType[], beyond the one
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** static element declared in the structure. nField total array slots for
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** aType[] and nField+1 array slots for aOffset[] */
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u32 aType[1]; /* Type values record decode. MUST BE LAST */
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};
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/*
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** A value for VdbeCursor.cacheStatus that means the cache is always invalid.
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*/
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#define CACHE_STALE 0
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/*
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** When a sub-program is executed (OP_Program), a structure of this type
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** is allocated to store the current value of the program counter, as
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** well as the current memory cell array and various other frame specific
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** values stored in the Vdbe struct. When the sub-program is finished,
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** these values are copied back to the Vdbe from the VdbeFrame structure,
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** restoring the state of the VM to as it was before the sub-program
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** began executing.
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**
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** The memory for a VdbeFrame object is allocated and managed by a memory
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** cell in the parent (calling) frame. When the memory cell is deleted or
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** overwritten, the VdbeFrame object is not freed immediately. Instead, it
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** is linked into the Vdbe.pDelFrame list. The contents of the Vdbe.pDelFrame
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** list is deleted when the VM is reset in VdbeHalt(). The reason for doing
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** this instead of deleting the VdbeFrame immediately is to avoid recursive
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** calls to sqlite3VdbeMemRelease() when the memory cells belonging to the
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** child frame are released.
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**
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** The currently executing frame is stored in Vdbe.pFrame. Vdbe.pFrame is
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** set to NULL if the currently executing frame is the main program.
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*/
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typedef struct VdbeFrame VdbeFrame;
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struct VdbeFrame {
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Vdbe *v; /* VM this frame belongs to */
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VdbeFrame *pParent; /* Parent of this frame, or NULL if parent is main */
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Op *aOp; /* Program instructions for parent frame */
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i64 *anExec; /* Event counters from parent frame */
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Mem *aMem; /* Array of memory cells for parent frame */
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VdbeCursor **apCsr; /* Array of Vdbe cursors for parent frame */
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void *token; /* Copy of SubProgram.token */
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i64 lastRowid; /* Last insert rowid (sqlite3.lastRowid) */
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AuxData *pAuxData; /* Linked list of auxdata allocations */
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int nCursor; /* Number of entries in apCsr */
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int pc; /* Program Counter in parent (calling) frame */
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int nOp; /* Size of aOp array */
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int nMem; /* Number of entries in aMem */
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int nChildMem; /* Number of memory cells for child frame */
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int nChildCsr; /* Number of cursors for child frame */
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int nChange; /* Statement changes (Vdbe.nChange) */
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int nDbChange; /* Value of db->nChange */
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};
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#define VdbeFrameMem(p) ((Mem *)&((u8 *)p)[ROUND8(sizeof(VdbeFrame))])
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/*
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** Internally, the vdbe manipulates nearly all SQL values as Mem
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** structures. Each Mem struct may cache multiple representations (string,
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** integer etc.) of the same value.
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*/
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struct Mem {
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union MemValue {
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double r; /* Real value used when MEM_Real is set in flags */
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i64 i; /* Integer value used when MEM_Int is set in flags */
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int nZero; /* Used when bit MEM_Zero is set in flags */
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FuncDef *pDef; /* Used only when flags==MEM_Agg */
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RowSet *pRowSet; /* Used only when flags==MEM_RowSet */
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VdbeFrame *pFrame; /* Used when flags==MEM_Frame */
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} u;
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u16 flags; /* Some combination of MEM_Null, MEM_Str, MEM_Dyn, etc. */
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u8 enc; /* SQLITE_UTF8, SQLITE_UTF16BE, SQLITE_UTF16LE */
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u8 eSubtype; /* Subtype for this value */
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int n; /* Number of characters in string value, excluding '\0' */
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char *z; /* String or BLOB value */
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/* ShallowCopy only needs to copy the information above */
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char *zMalloc; /* Space to hold MEM_Str or MEM_Blob if szMalloc>0 */
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int szMalloc; /* Size of the zMalloc allocation */
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u32 uTemp; /* Transient storage for serial_type in OP_MakeRecord */
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sqlite3 *db; /* The associated database connection */
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void (*xDel)(void*);/* Destructor for Mem.z - only valid if MEM_Dyn */
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#ifdef SQLITE_DEBUG
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Mem *pScopyFrom; /* This Mem is a shallow copy of pScopyFrom */
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void *pFiller; /* So that sizeof(Mem) is a multiple of 8 */
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#endif
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};
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/*
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** Size of struct Mem not including the Mem.zMalloc member or anything that
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** follows.
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*/
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#define MEMCELLSIZE offsetof(Mem,zMalloc)
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/* One or more of the following flags are set to indicate the validOK
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** representations of the value stored in the Mem struct.
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**
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** If the MEM_Null flag is set, then the value is an SQL NULL value.
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** No other flags may be set in this case.
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**
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** If the MEM_Str flag is set then Mem.z points at a string representation.
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** Usually this is encoded in the same unicode encoding as the main
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** database (see below for exceptions). If the MEM_Term flag is also
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** set, then the string is nul terminated. The MEM_Int and MEM_Real
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** flags may coexist with the MEM_Str flag.
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*/
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#define MEM_Null 0x0001 /* Value is NULL */
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#define MEM_Str 0x0002 /* Value is a string */
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#define MEM_Int 0x0004 /* Value is an integer */
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#define MEM_Real 0x0008 /* Value is a real number */
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#define MEM_Blob 0x0010 /* Value is a BLOB */
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#define MEM_AffMask 0x001f /* Mask of affinity bits */
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#define MEM_RowSet 0x0020 /* Value is a RowSet object */
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#define MEM_Frame 0x0040 /* Value is a VdbeFrame object */
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#define MEM_Undefined 0x0080 /* Value is undefined */
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#define MEM_Cleared 0x0100 /* NULL set by OP_Null, not from data */
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#define MEM_TypeMask 0x81ff /* Mask of type bits */
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/* Whenever Mem contains a valid string or blob representation, one of
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** the following flags must be set to determine the memory management
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** policy for Mem.z. The MEM_Term flag tells us whether or not the
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** string is \000 or \u0000 terminated
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*/
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#define MEM_Term 0x0200 /* String rep is nul terminated */
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#define MEM_Dyn 0x0400 /* Need to call Mem.xDel() on Mem.z */
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#define MEM_Static 0x0800 /* Mem.z points to a static string */
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#define MEM_Ephem 0x1000 /* Mem.z points to an ephemeral string */
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#define MEM_Agg 0x2000 /* Mem.z points to an agg function context */
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#define MEM_Zero 0x4000 /* Mem.i contains count of 0s appended to blob */
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#define MEM_Subtype 0x8000 /* Mem.eSubtype is valid */
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#ifdef SQLITE_OMIT_INCRBLOB
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#undef MEM_Zero
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#define MEM_Zero 0x0000
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#endif
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/* Return TRUE if Mem X contains dynamically allocated content - anything
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** that needs to be deallocated to avoid a leak.
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*/
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#define VdbeMemDynamic(X) \
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(((X)->flags&(MEM_Agg|MEM_Dyn|MEM_RowSet|MEM_Frame))!=0)
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/*
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** Clear any existing type flags from a Mem and replace them with f
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*/
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#define MemSetTypeFlag(p, f) \
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((p)->flags = ((p)->flags&~(MEM_TypeMask|MEM_Zero))|f)
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/*
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** Return true if a memory cell is not marked as invalid. This macro
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** is for use inside assert() statements only.
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*/
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#ifdef SQLITE_DEBUG
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#define memIsValid(M) ((M)->flags & MEM_Undefined)==0
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#endif
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/*
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** Each auxiliary data pointer stored by a user defined function
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** implementation calling sqlite3_set_auxdata() is stored in an instance
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** of this structure. All such structures associated with a single VM
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** are stored in a linked list headed at Vdbe.pAuxData. All are destroyed
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** when the VM is halted (if not before).
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*/
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struct AuxData {
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int iOp; /* Instruction number of OP_Function opcode */
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int iArg; /* Index of function argument. */
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void *pAux; /* Aux data pointer */
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void (*xDelete)(void *); /* Destructor for the aux data */
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AuxData *pNext; /* Next element in list */
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};
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/*
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** The "context" argument for an installable function. A pointer to an
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** instance of this structure is the first argument to the routines used
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** implement the SQL functions.
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**
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** There is a typedef for this structure in sqlite.h. So all routines,
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** even the public interface to SQLite, can use a pointer to this structure.
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** But this file is the only place where the internal details of this
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** structure are known.
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**
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** This structure is defined inside of vdbeInt.h because it uses substructures
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** (Mem) which are only defined there.
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*/
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struct sqlite3_context {
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Mem *pOut; /* The return value is stored here */
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FuncDef *pFunc; /* Pointer to function information */
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Mem *pMem; /* Memory cell used to store aggregate context */
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Vdbe *pVdbe; /* The VM that owns this context */
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int iOp; /* Instruction number of OP_Function */
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int isError; /* Error code returned by the function. */
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u8 skipFlag; /* Skip accumulator loading if true */
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u8 fErrorOrAux; /* isError!=0 or pVdbe->pAuxData modified */
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u8 argc; /* Number of arguments */
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sqlite3_value *argv[1]; /* Argument set */
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};
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/* A bitfield type for use inside of structures. Always follow with :N where
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** N is the number of bits.
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*/
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typedef unsigned bft; /* Bit Field Type */
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typedef struct ScanStatus ScanStatus;
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struct ScanStatus {
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int addrExplain; /* OP_Explain for loop */
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int addrLoop; /* Address of "loops" counter */
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int addrVisit; /* Address of "rows visited" counter */
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int iSelectID; /* The "Select-ID" for this loop */
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LogEst nEst; /* Estimated output rows per loop */
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char *zName; /* Name of table or index */
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};
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/*
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** An instance of the virtual machine. This structure contains the complete
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** state of the virtual machine.
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**
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** The "sqlite3_stmt" structure pointer that is returned by sqlite3_prepare()
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** is really a pointer to an instance of this structure.
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*/
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struct Vdbe {
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sqlite3 *db; /* The database connection that owns this statement */
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Vdbe *pPrev,*pNext; /* Linked list of VDBEs with the same Vdbe.db */
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Parse *pParse; /* Parsing context used to create this Vdbe */
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ynVar nVar; /* Number of entries in aVar[] */
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ynVar nzVar; /* Number of entries in azVar[] */
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u32 magic; /* Magic number for sanity checking */
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int nMem; /* Number of memory locations currently allocated */
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int nCursor; /* Number of slots in apCsr[] */
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u32 cacheCtr; /* VdbeCursor row cache generation counter */
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int pc; /* The program counter */
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int rc; /* Value to return */
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int nChange; /* Number of db changes made since last reset */
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int iStatement; /* Statement number (or 0 if has not opened stmt) */
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i64 iCurrentTime; /* Value of julianday('now') for this statement */
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i64 nFkConstraint; /* Number of imm. FK constraints this VM */
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i64 nStmtDefCons; /* Number of def. constraints when stmt started */
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i64 nStmtDefImmCons; /* Number of def. imm constraints when stmt started */
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/* When allocating a new Vdbe object, all of the fields below should be
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** initialized to zero or NULL */
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Op *aOp; /* Space to hold the virtual machine's program */
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Mem *aMem; /* The memory locations */
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Mem **apArg; /* Arguments to currently executing user function */
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Mem *aColName; /* Column names to return */
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Mem *pResultSet; /* Pointer to an array of results */
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char *zErrMsg; /* Error message written here */
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VdbeCursor **apCsr; /* One element of this array for each open cursor */
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Mem *aVar; /* Values for the OP_Variable opcode. */
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char **azVar; /* Name of variables */
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#ifndef SQLITE_OMIT_TRACE
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i64 startTime; /* Time when query started - used for profiling */
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#endif
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int nOp; /* Number of instructions in the program */
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#ifdef SQLITE_DEBUG
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int rcApp; /* errcode set by sqlite3_result_error_code() */
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#endif
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u16 nResColumn; /* Number of columns in one row of the result set */
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u8 errorAction; /* Recovery action to do in case of an error */
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u8 minWriteFileFormat; /* Minimum file format for writable database files */
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bft expired:1; /* True if the VM needs to be recompiled */
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bft doingRerun:1; /* True if rerunning after an auto-reprepare */
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bft explain:2; /* True if EXPLAIN present on SQL command */
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bft changeCntOn:1; /* True to update the change-counter */
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bft runOnlyOnce:1; /* Automatically expire on reset */
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bft usesStmtJournal:1; /* True if uses a statement journal */
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bft readOnly:1; /* True for statements that do not write */
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bft bIsReader:1; /* True for statements that read */
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bft isPrepareV2:1; /* True if prepared with prepare_v2() */
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yDbMask btreeMask; /* Bitmask of db->aDb[] entries referenced */
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yDbMask lockMask; /* Subset of btreeMask that requires a lock */
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u32 aCounter[5]; /* Counters used by sqlite3_stmt_status() */
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char *zSql; /* Text of the SQL statement that generated this */
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void *pFree; /* Free this when deleting the vdbe */
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VdbeFrame *pFrame; /* Parent frame */
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VdbeFrame *pDelFrame; /* List of frame objects to free on VM reset */
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int nFrame; /* Number of frames in pFrame list */
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u32 expmask; /* Binding to these vars invalidates VM */
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SubProgram *pProgram; /* Linked list of all sub-programs used by VM */
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AuxData *pAuxData; /* Linked list of auxdata allocations */
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#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
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i64 *anExec; /* Number of times each op has been executed */
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int nScan; /* Entries in aScan[] */
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ScanStatus *aScan; /* Scan definitions for sqlite3_stmt_scanstatus() */
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#endif
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};
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/*
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** The following are allowed values for Vdbe.magic
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*/
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#define VDBE_MAGIC_INIT 0x16bceaa5 /* Building a VDBE program */
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#define VDBE_MAGIC_RUN 0x2df20da3 /* VDBE is ready to execute */
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#define VDBE_MAGIC_HALT 0x319c2973 /* VDBE has completed execution */
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#define VDBE_MAGIC_RESET 0x48fa9f76 /* Reset and ready to run again */
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#define VDBE_MAGIC_DEAD 0x5606c3c8 /* The VDBE has been deallocated */
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/*
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** Structure used to store the context required by the
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** sqlite3_preupdate_*() API functions.
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*/
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struct PreUpdate {
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Vdbe *v;
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VdbeCursor *pCsr; /* Cursor to read old values from */
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int op; /* One of SQLITE_INSERT, UPDATE, DELETE */
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u8 *aRecord; /* old.* database record */
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KeyInfo keyinfo;
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UnpackedRecord *pUnpacked; /* Unpacked version of aRecord[] */
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UnpackedRecord *pNewUnpacked; /* Unpacked version of new.* record */
|
|
int iNewReg; /* Register for new.* values */
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i64 iKey1; /* First key value passed to hook */
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|
i64 iKey2; /* Second key value passed to hook */
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Mem *aNew; /* Array of new.* values */
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|
Table *pTab; /* Schema object being upated */
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};
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/*
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** Function prototypes
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*/
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void sqlite3VdbeError(Vdbe*, const char *, ...);
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void sqlite3VdbeFreeCursor(Vdbe *, VdbeCursor*);
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void sqliteVdbePopStack(Vdbe*,int);
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int sqlite3VdbeCursorMoveto(VdbeCursor**, int*);
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int sqlite3VdbeCursorRestore(VdbeCursor*);
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|
#if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE)
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void sqlite3VdbePrintOp(FILE*, int, Op*);
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|
#endif
|
|
u32 sqlite3VdbeSerialTypeLen(u32);
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|
u8 sqlite3VdbeOneByteSerialTypeLen(u8);
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|
u32 sqlite3VdbeSerialType(Mem*, int, u32*);
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|
u32 sqlite3VdbeSerialPut(unsigned char*, Mem*, u32);
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|
u32 sqlite3VdbeSerialGet(const unsigned char*, u32, Mem*);
|
|
void sqlite3VdbeDeleteAuxData(sqlite3*, AuxData**, int, int);
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|
|
|
int sqlite2BtreeKeyCompare(BtCursor *, const void *, int, int, int *);
|
|
int sqlite3VdbeIdxKeyCompare(sqlite3*,VdbeCursor*,UnpackedRecord*,int*);
|
|
int sqlite3VdbeIdxRowid(sqlite3*, BtCursor*, i64*);
|
|
int sqlite3VdbeExec(Vdbe*);
|
|
int sqlite3VdbeList(Vdbe*);
|
|
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*, int, u8, void(*)(void*));
|
|
void sqlite3VdbeMemSetInt64(Mem*, i64);
|
|
#ifdef SQLITE_OMIT_FLOATING_POINT
|
|
# define sqlite3VdbeMemSetDouble sqlite3VdbeMemSetInt64
|
|
#else
|
|
void sqlite3VdbeMemSetDouble(Mem*, double);
|
|
#endif
|
|
void sqlite3VdbeMemInit(Mem*,sqlite3*,u16);
|
|
void sqlite3VdbeMemSetNull(Mem*);
|
|
void sqlite3VdbeMemSetZeroBlob(Mem*,int);
|
|
void sqlite3VdbeMemSetRowSet(Mem*);
|
|
int sqlite3VdbeMemMakeWriteable(Mem*);
|
|
int sqlite3VdbeMemStringify(Mem*, u8, u8);
|
|
i64 sqlite3VdbeIntValue(Mem*);
|
|
int sqlite3VdbeMemIntegerify(Mem*);
|
|
double sqlite3VdbeRealValue(Mem*);
|
|
void sqlite3VdbeIntegerAffinity(Mem*);
|
|
int sqlite3VdbeMemRealify(Mem*);
|
|
int sqlite3VdbeMemNumerify(Mem*);
|
|
void sqlite3VdbeMemCast(Mem*,u8,u8);
|
|
int sqlite3VdbeMemFromBtree(BtCursor*,u32,u32,Mem*);
|
|
void sqlite3VdbeMemRelease(Mem *p);
|
|
int sqlite3VdbeMemFinalize(Mem*, FuncDef*);
|
|
const char *sqlite3OpcodeName(int);
|
|
int sqlite3VdbeMemGrow(Mem *pMem, int n, int preserve);
|
|
int sqlite3VdbeMemClearAndResize(Mem *pMem, int n);
|
|
int sqlite3VdbeCloseStatement(Vdbe *, int);
|
|
void sqlite3VdbeFrameDelete(VdbeFrame*);
|
|
int sqlite3VdbeFrameRestore(VdbeFrame *);
|
|
#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
|
|
void sqlite3VdbePreUpdateHook(Vdbe*,VdbeCursor*,int,const char*,Table*,i64,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 *);
|
|
int sqlite3VdbeSorterRewind(const VdbeCursor *, int *);
|
|
int sqlite3VdbeSorterWrite(const VdbeCursor *, Mem *);
|
|
int sqlite3VdbeSorterCompare(const VdbeCursor *, Mem *, int, int *);
|
|
|
|
#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
|
|
|
|
int sqlite3VdbeMemTranslate(Mem*, u8);
|
|
#ifdef SQLITE_DEBUG
|
|
void sqlite3VdbePrintSql(Vdbe*);
|
|
void sqlite3VdbeMemPrettyPrint(Mem *pMem, char *zBuf);
|
|
#endif
|
|
int sqlite3VdbeMemHandleBom(Mem *pMem);
|
|
|
|
#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) */
|