OLD | NEW |
(Empty) | |
| 1 /* |
| 2 ** 2003 September 6 |
| 3 ** |
| 4 ** The author disclaims copyright to this source code. In place of |
| 5 ** a legal notice, here is a blessing: |
| 6 ** |
| 7 ** May you do good and not evil. |
| 8 ** May you find forgiveness for yourself and forgive others. |
| 9 ** May you share freely, never taking more than you give. |
| 10 ** |
| 11 ************************************************************************* |
| 12 ** This is the header file for information that is private to the |
| 13 ** VDBE. This information used to all be at the top of the single |
| 14 ** source code file "vdbe.c". When that file became too big (over |
| 15 ** 6000 lines long) it was split up into several smaller files and |
| 16 ** this header information was factored out. |
| 17 */ |
| 18 #ifndef _VDBEINT_H_ |
| 19 #define _VDBEINT_H_ |
| 20 |
| 21 /* |
| 22 ** SQL is translated into a sequence of instructions to be |
| 23 ** executed by a virtual machine. Each instruction is an instance |
| 24 ** of the following structure. |
| 25 */ |
| 26 typedef struct VdbeOp Op; |
| 27 |
| 28 /* |
| 29 ** Boolean values |
| 30 */ |
| 31 typedef unsigned char Bool; |
| 32 |
| 33 /* |
| 34 ** A cursor is a pointer into a single BTree within a database file. |
| 35 ** The cursor can seek to a BTree entry with a particular key, or |
| 36 ** loop over all entries of the Btree. You can also insert new BTree |
| 37 ** entries or retrieve the key or data from the entry that the cursor |
| 38 ** is currently pointing to. |
| 39 ** |
| 40 ** Every cursor that the virtual machine has open is represented by an |
| 41 ** instance of the following structure. |
| 42 */ |
| 43 struct VdbeCursor { |
| 44 BtCursor *pCursor; /* The cursor structure of the backend */ |
| 45 Btree *pBt; /* Separate file holding temporary table */ |
| 46 KeyInfo *pKeyInfo; /* Info about index keys needed by index cursors */ |
| 47 int iDb; /* Index of cursor database in db->aDb[] (or -1) */ |
| 48 int pseudoTableReg; /* Register holding pseudotable content. */ |
| 49 int nField; /* Number of fields in the header */ |
| 50 Bool zeroed; /* True if zeroed out and ready for reuse */ |
| 51 Bool rowidIsValid; /* True if lastRowid is valid */ |
| 52 Bool atFirst; /* True if pointing to first entry */ |
| 53 Bool useRandomRowid; /* Generate new record numbers semi-randomly */ |
| 54 Bool nullRow; /* True if pointing to a row with no data */ |
| 55 Bool deferredMoveto; /* A call to sqlite3BtreeMoveto() is needed */ |
| 56 Bool isTable; /* True if a table requiring integer keys */ |
| 57 Bool isIndex; /* True if an index containing keys only - no data */ |
| 58 Bool isOrdered; /* True if the underlying table is BTREE_UNORDERED */ |
| 59 sqlite3_vtab_cursor *pVtabCursor; /* The cursor for a virtual table */ |
| 60 const sqlite3_module *pModule; /* Module for cursor pVtabCursor */ |
| 61 i64 seqCount; /* Sequence counter */ |
| 62 i64 movetoTarget; /* Argument to the deferred sqlite3BtreeMoveto() */ |
| 63 i64 lastRowid; /* Last rowid from a Next or NextIdx operation */ |
| 64 |
| 65 /* Result of last sqlite3BtreeMoveto() done by an OP_NotExists or |
| 66 ** OP_IsUnique opcode on this cursor. */ |
| 67 int seekResult; |
| 68 |
| 69 /* Cached information about the header for the data record that the |
| 70 ** cursor is currently pointing to. Only valid if cacheStatus matches |
| 71 ** Vdbe.cacheCtr. Vdbe.cacheCtr will never take on the value of |
| 72 ** CACHE_STALE and so setting cacheStatus=CACHE_STALE guarantees that |
| 73 ** the cache is out of date. |
| 74 ** |
| 75 ** aRow might point to (ephemeral) data for the current row, or it might |
| 76 ** be NULL. |
| 77 */ |
| 78 u32 cacheStatus; /* Cache is valid if this matches Vdbe.cacheCtr */ |
| 79 int payloadSize; /* Total number of bytes in the record */ |
| 80 u32 *aType; /* Type values for all entries in the record */ |
| 81 u32 *aOffset; /* Cached offsets to the start of each columns data */ |
| 82 u8 *aRow; /* Data for the current row, if all on one page */ |
| 83 }; |
| 84 typedef struct VdbeCursor VdbeCursor; |
| 85 |
| 86 /* |
| 87 ** When a sub-program is executed (OP_Program), a structure of this type |
| 88 ** is allocated to store the current value of the program counter, as |
| 89 ** well as the current memory cell array and various other frame specific |
| 90 ** values stored in the Vdbe struct. When the sub-program is finished, |
| 91 ** these values are copied back to the Vdbe from the VdbeFrame structure, |
| 92 ** restoring the state of the VM to as it was before the sub-program |
| 93 ** began executing. |
| 94 ** |
| 95 ** The memory for a VdbeFrame object is allocated and managed by a memory |
| 96 ** cell in the parent (calling) frame. When the memory cell is deleted or |
| 97 ** overwritten, the VdbeFrame object is not freed immediately. Instead, it |
| 98 ** is linked into the Vdbe.pDelFrame list. The contents of the Vdbe.pDelFrame |
| 99 ** list is deleted when the VM is reset in VdbeHalt(). The reason for doing |
| 100 ** this instead of deleting the VdbeFrame immediately is to avoid recursive |
| 101 ** calls to sqlite3VdbeMemRelease() when the memory cells belonging to the |
| 102 ** child frame are released. |
| 103 ** |
| 104 ** The currently executing frame is stored in Vdbe.pFrame. Vdbe.pFrame is |
| 105 ** set to NULL if the currently executing frame is the main program. |
| 106 */ |
| 107 typedef struct VdbeFrame VdbeFrame; |
| 108 struct VdbeFrame { |
| 109 Vdbe *v; /* VM this frame belongs to */ |
| 110 int pc; /* Program Counter in parent (calling) frame */ |
| 111 Op *aOp; /* Program instructions for parent frame */ |
| 112 int nOp; /* Size of aOp array */ |
| 113 Mem *aMem; /* Array of memory cells for parent frame */ |
| 114 int nMem; /* Number of entries in aMem */ |
| 115 VdbeCursor **apCsr; /* Array of Vdbe cursors for parent frame */ |
| 116 u16 nCursor; /* Number of entries in apCsr */ |
| 117 void *token; /* Copy of SubProgram.token */ |
| 118 int nChildMem; /* Number of memory cells for child frame */ |
| 119 int nChildCsr; /* Number of cursors for child frame */ |
| 120 i64 lastRowid; /* Last insert rowid (sqlite3.lastRowid) */ |
| 121 int nChange; /* Statement changes (Vdbe.nChanges) */ |
| 122 VdbeFrame *pParent; /* Parent of this frame, or NULL if parent is main */ |
| 123 }; |
| 124 |
| 125 #define VdbeFrameMem(p) ((Mem *)&((u8 *)p)[ROUND8(sizeof(VdbeFrame))]) |
| 126 |
| 127 /* |
| 128 ** A value for VdbeCursor.cacheValid that means the cache is always invalid. |
| 129 */ |
| 130 #define CACHE_STALE 0 |
| 131 |
| 132 /* |
| 133 ** Internally, the vdbe manipulates nearly all SQL values as Mem |
| 134 ** structures. Each Mem struct may cache multiple representations (string, |
| 135 ** integer etc.) of the same value. |
| 136 */ |
| 137 struct Mem { |
| 138 sqlite3 *db; /* The associated database connection */ |
| 139 char *z; /* String or BLOB value */ |
| 140 double r; /* Real value */ |
| 141 union { |
| 142 i64 i; /* Integer value used when MEM_Int is set in flags */ |
| 143 int nZero; /* Used when bit MEM_Zero is set in flags */ |
| 144 FuncDef *pDef; /* Used only when flags==MEM_Agg */ |
| 145 RowSet *pRowSet; /* Used only when flags==MEM_RowSet */ |
| 146 VdbeFrame *pFrame; /* Used when flags==MEM_Frame */ |
| 147 } u; |
| 148 int n; /* Number of characters in string value, excluding '\0' */ |
| 149 u16 flags; /* Some combination of MEM_Null, MEM_Str, MEM_Dyn, etc. */ |
| 150 u8 type; /* One of SQLITE_NULL, SQLITE_TEXT, SQLITE_INTEGER, etc */ |
| 151 u8 enc; /* SQLITE_UTF8, SQLITE_UTF16BE, SQLITE_UTF16LE */ |
| 152 #ifdef SQLITE_DEBUG |
| 153 Mem *pScopyFrom; /* This Mem is a shallow copy of pScopyFrom */ |
| 154 void *pFiller; /* So that sizeof(Mem) is a multiple of 8 */ |
| 155 #endif |
| 156 void (*xDel)(void *); /* If not null, call this function to delete Mem.z */ |
| 157 char *zMalloc; /* Dynamic buffer allocated by sqlite3_malloc() */ |
| 158 }; |
| 159 |
| 160 /* One or more of the following flags are set to indicate the validOK |
| 161 ** representations of the value stored in the Mem struct. |
| 162 ** |
| 163 ** If the MEM_Null flag is set, then the value is an SQL NULL value. |
| 164 ** No other flags may be set in this case. |
| 165 ** |
| 166 ** If the MEM_Str flag is set then Mem.z points at a string representation. |
| 167 ** Usually this is encoded in the same unicode encoding as the main |
| 168 ** database (see below for exceptions). If the MEM_Term flag is also |
| 169 ** set, then the string is nul terminated. The MEM_Int and MEM_Real |
| 170 ** flags may coexist with the MEM_Str flag. |
| 171 */ |
| 172 #define MEM_Null 0x0001 /* Value is NULL */ |
| 173 #define MEM_Str 0x0002 /* Value is a string */ |
| 174 #define MEM_Int 0x0004 /* Value is an integer */ |
| 175 #define MEM_Real 0x0008 /* Value is a real number */ |
| 176 #define MEM_Blob 0x0010 /* Value is a BLOB */ |
| 177 #define MEM_RowSet 0x0020 /* Value is a RowSet object */ |
| 178 #define MEM_Frame 0x0040 /* Value is a VdbeFrame object */ |
| 179 #define MEM_Invalid 0x0080 /* Value is undefined */ |
| 180 #define MEM_TypeMask 0x00ff /* Mask of type bits */ |
| 181 |
| 182 /* Whenever Mem contains a valid string or blob representation, one of |
| 183 ** the following flags must be set to determine the memory management |
| 184 ** policy for Mem.z. The MEM_Term flag tells us whether or not the |
| 185 ** string is \000 or \u0000 terminated |
| 186 */ |
| 187 #define MEM_Term 0x0200 /* String rep is nul terminated */ |
| 188 #define MEM_Dyn 0x0400 /* Need to call sqliteFree() on Mem.z */ |
| 189 #define MEM_Static 0x0800 /* Mem.z points to a static string */ |
| 190 #define MEM_Ephem 0x1000 /* Mem.z points to an ephemeral string */ |
| 191 #define MEM_Agg 0x2000 /* Mem.z points to an agg function context */ |
| 192 #define MEM_Zero 0x4000 /* Mem.i contains count of 0s appended to blob */ |
| 193 #ifdef SQLITE_OMIT_INCRBLOB |
| 194 #undef MEM_Zero |
| 195 #define MEM_Zero 0x0000 |
| 196 #endif |
| 197 |
| 198 /* |
| 199 ** Clear any existing type flags from a Mem and replace them with f |
| 200 */ |
| 201 #define MemSetTypeFlag(p, f) \ |
| 202 ((p)->flags = ((p)->flags&~(MEM_TypeMask|MEM_Zero))|f) |
| 203 |
| 204 /* |
| 205 ** Return true if a memory cell is not marked as invalid. This macro |
| 206 ** is for use inside assert() statements only. |
| 207 */ |
| 208 #ifdef SQLITE_DEBUG |
| 209 #define memIsValid(M) ((M)->flags & MEM_Invalid)==0 |
| 210 #endif |
| 211 |
| 212 |
| 213 /* A VdbeFunc is just a FuncDef (defined in sqliteInt.h) that contains |
| 214 ** additional information about auxiliary information bound to arguments |
| 215 ** of the function. This is used to implement the sqlite3_get_auxdata() |
| 216 ** and sqlite3_set_auxdata() APIs. The "auxdata" is some auxiliary data |
| 217 ** that can be associated with a constant argument to a function. This |
| 218 ** allows functions such as "regexp" to compile their constant regular |
| 219 ** expression argument once and reused the compiled code for multiple |
| 220 ** invocations. |
| 221 */ |
| 222 struct VdbeFunc { |
| 223 FuncDef *pFunc; /* The definition of the function */ |
| 224 int nAux; /* Number of entries allocated for apAux[] */ |
| 225 struct AuxData { |
| 226 void *pAux; /* Aux data for the i-th argument */ |
| 227 void (*xDelete)(void *); /* Destructor for the aux data */ |
| 228 } apAux[1]; /* One slot for each function argument */ |
| 229 }; |
| 230 |
| 231 /* |
| 232 ** The "context" argument for a installable function. A pointer to an |
| 233 ** instance of this structure is the first argument to the routines used |
| 234 ** implement the SQL functions. |
| 235 ** |
| 236 ** There is a typedef for this structure in sqlite.h. So all routines, |
| 237 ** even the public interface to SQLite, can use a pointer to this structure. |
| 238 ** But this file is the only place where the internal details of this |
| 239 ** structure are known. |
| 240 ** |
| 241 ** This structure is defined inside of vdbeInt.h because it uses substructures |
| 242 ** (Mem) which are only defined there. |
| 243 */ |
| 244 struct sqlite3_context { |
| 245 FuncDef *pFunc; /* Pointer to function information. MUST BE FIRST */ |
| 246 VdbeFunc *pVdbeFunc; /* Auxilary data, if created. */ |
| 247 Mem s; /* The return value is stored here */ |
| 248 Mem *pMem; /* Memory cell used to store aggregate context */ |
| 249 int isError; /* Error code returned by the function. */ |
| 250 CollSeq *pColl; /* Collating sequence */ |
| 251 }; |
| 252 |
| 253 /* |
| 254 ** An instance of the virtual machine. This structure contains the complete |
| 255 ** state of the virtual machine. |
| 256 ** |
| 257 ** The "sqlite3_stmt" structure pointer that is returned by sqlite3_prepare() |
| 258 ** is really a pointer to an instance of this structure. |
| 259 ** |
| 260 ** The Vdbe.inVtabMethod variable is set to non-zero for the duration of |
| 261 ** any virtual table method invocations made by the vdbe program. It is |
| 262 ** set to 2 for xDestroy method calls and 1 for all other methods. This |
| 263 ** variable is used for two purposes: to allow xDestroy methods to execute |
| 264 ** "DROP TABLE" statements and to prevent some nasty side effects of |
| 265 ** malloc failure when SQLite is invoked recursively by a virtual table |
| 266 ** method function. |
| 267 */ |
| 268 struct Vdbe { |
| 269 sqlite3 *db; /* The database connection that owns this statement */ |
| 270 Op *aOp; /* Space to hold the virtual machine's program */ |
| 271 Mem *aMem; /* The memory locations */ |
| 272 Mem **apArg; /* Arguments to currently executing user function */ |
| 273 Mem *aColName; /* Column names to return */ |
| 274 Mem *pResultSet; /* Pointer to an array of results */ |
| 275 int nMem; /* Number of memory locations currently allocated */ |
| 276 int nOp; /* Number of instructions in the program */ |
| 277 int nOpAlloc; /* Number of slots allocated for aOp[] */ |
| 278 int nLabel; /* Number of labels used */ |
| 279 int nLabelAlloc; /* Number of slots allocated in aLabel[] */ |
| 280 int *aLabel; /* Space to hold the labels */ |
| 281 u16 nResColumn; /* Number of columns in one row of the result set */ |
| 282 u16 nCursor; /* Number of slots in apCsr[] */ |
| 283 u32 magic; /* Magic number for sanity checking */ |
| 284 char *zErrMsg; /* Error message written here */ |
| 285 Vdbe *pPrev,*pNext; /* Linked list of VDBEs with the same Vdbe.db */ |
| 286 VdbeCursor **apCsr; /* One element of this array for each open cursor */ |
| 287 Mem *aVar; /* Values for the OP_Variable opcode. */ |
| 288 char **azVar; /* Name of variables */ |
| 289 ynVar nVar; /* Number of entries in aVar[] */ |
| 290 u32 cacheCtr; /* VdbeCursor row cache generation counter */ |
| 291 int pc; /* The program counter */ |
| 292 int rc; /* Value to return */ |
| 293 u8 errorAction; /* Recovery action to do in case of an error */ |
| 294 u8 okVar; /* True if azVar[] has been initialized */ |
| 295 u8 explain; /* True if EXPLAIN present on SQL command */ |
| 296 u8 changeCntOn; /* True to update the change-counter */ |
| 297 u8 expired; /* True if the VM needs to be recompiled */ |
| 298 u8 runOnlyOnce; /* Automatically expire on reset */ |
| 299 u8 minWriteFileFormat; /* Minimum file format for writable database files */ |
| 300 u8 inVtabMethod; /* See comments above */ |
| 301 u8 usesStmtJournal; /* True if uses a statement journal */ |
| 302 u8 readOnly; /* True for read-only statements */ |
| 303 u8 isPrepareV2; /* True if prepared with prepare_v2() */ |
| 304 int nChange; /* Number of db changes made since last reset */ |
| 305 yDbMask btreeMask; /* Bitmask of db->aDb[] entries referenced */ |
| 306 yDbMask lockMask; /* Subset of btreeMask that requires a lock */ |
| 307 int iStatement; /* Statement number (or 0 if has not opened stmt) */ |
| 308 int aCounter[3]; /* Counters used by sqlite3_stmt_status() */ |
| 309 #ifndef SQLITE_OMIT_TRACE |
| 310 i64 startTime; /* Time when query started - used for profiling */ |
| 311 #endif |
| 312 i64 nFkConstraint; /* Number of imm. FK constraints this VM */ |
| 313 i64 nStmtDefCons; /* Number of def. constraints when stmt started */ |
| 314 char *zSql; /* Text of the SQL statement that generated this */ |
| 315 void *pFree; /* Free this when deleting the vdbe */ |
| 316 #ifdef SQLITE_DEBUG |
| 317 FILE *trace; /* Write an execution trace here, if not NULL */ |
| 318 #endif |
| 319 VdbeFrame *pFrame; /* Parent frame */ |
| 320 VdbeFrame *pDelFrame; /* List of frame objects to free on VM reset */ |
| 321 int nFrame; /* Number of frames in pFrame list */ |
| 322 u32 expmask; /* Binding to these vars invalidates VM */ |
| 323 SubProgram *pProgram; /* Linked list of all sub-programs used by VM */ |
| 324 }; |
| 325 |
| 326 /* |
| 327 ** The following are allowed values for Vdbe.magic |
| 328 */ |
| 329 #define VDBE_MAGIC_INIT 0x26bceaa5 /* Building a VDBE program */ |
| 330 #define VDBE_MAGIC_RUN 0xbdf20da3 /* VDBE is ready to execute */ |
| 331 #define VDBE_MAGIC_HALT 0x519c2973 /* VDBE has completed execution */ |
| 332 #define VDBE_MAGIC_DEAD 0xb606c3c8 /* The VDBE has been deallocated */ |
| 333 |
| 334 /* |
| 335 ** Function prototypes |
| 336 */ |
| 337 void sqlite3VdbeFreeCursor(Vdbe *, VdbeCursor*); |
| 338 void sqliteVdbePopStack(Vdbe*,int); |
| 339 int sqlite3VdbeCursorMoveto(VdbeCursor*); |
| 340 #if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE) |
| 341 void sqlite3VdbePrintOp(FILE*, int, Op*); |
| 342 #endif |
| 343 u32 sqlite3VdbeSerialTypeLen(u32); |
| 344 u32 sqlite3VdbeSerialType(Mem*, int); |
| 345 u32 sqlite3VdbeSerialPut(unsigned char*, int, Mem*, int); |
| 346 u32 sqlite3VdbeSerialGet(const unsigned char*, u32, Mem*); |
| 347 void sqlite3VdbeDeleteAuxData(VdbeFunc*, int); |
| 348 |
| 349 int sqlite2BtreeKeyCompare(BtCursor *, const void *, int, int, int *); |
| 350 int sqlite3VdbeIdxKeyCompare(VdbeCursor*,UnpackedRecord*,int*); |
| 351 int sqlite3VdbeIdxRowid(sqlite3*, BtCursor *, i64 *); |
| 352 int sqlite3MemCompare(const Mem*, const Mem*, const CollSeq*); |
| 353 int sqlite3VdbeExec(Vdbe*); |
| 354 int sqlite3VdbeList(Vdbe*); |
| 355 int sqlite3VdbeHalt(Vdbe*); |
| 356 int sqlite3VdbeChangeEncoding(Mem *, int); |
| 357 int sqlite3VdbeMemTooBig(Mem*); |
| 358 int sqlite3VdbeMemCopy(Mem*, const Mem*); |
| 359 void sqlite3VdbeMemShallowCopy(Mem*, const Mem*, int); |
| 360 void sqlite3VdbeMemMove(Mem*, Mem*); |
| 361 int sqlite3VdbeMemNulTerminate(Mem*); |
| 362 int sqlite3VdbeMemSetStr(Mem*, const char*, int, u8, void(*)(void*)); |
| 363 void sqlite3VdbeMemSetInt64(Mem*, i64); |
| 364 #ifdef SQLITE_OMIT_FLOATING_POINT |
| 365 # define sqlite3VdbeMemSetDouble sqlite3VdbeMemSetInt64 |
| 366 #else |
| 367 void sqlite3VdbeMemSetDouble(Mem*, double); |
| 368 #endif |
| 369 void sqlite3VdbeMemSetNull(Mem*); |
| 370 void sqlite3VdbeMemSetZeroBlob(Mem*,int); |
| 371 void sqlite3VdbeMemSetRowSet(Mem*); |
| 372 int sqlite3VdbeMemMakeWriteable(Mem*); |
| 373 int sqlite3VdbeMemStringify(Mem*, int); |
| 374 i64 sqlite3VdbeIntValue(Mem*); |
| 375 int sqlite3VdbeMemIntegerify(Mem*); |
| 376 double sqlite3VdbeRealValue(Mem*); |
| 377 void sqlite3VdbeIntegerAffinity(Mem*); |
| 378 int sqlite3VdbeMemRealify(Mem*); |
| 379 int sqlite3VdbeMemNumerify(Mem*); |
| 380 int sqlite3VdbeMemFromBtree(BtCursor*,int,int,int,Mem*); |
| 381 void sqlite3VdbeMemRelease(Mem *p); |
| 382 void sqlite3VdbeMemReleaseExternal(Mem *p); |
| 383 int sqlite3VdbeMemFinalize(Mem*, FuncDef*); |
| 384 const char *sqlite3OpcodeName(int); |
| 385 int sqlite3VdbeMemGrow(Mem *pMem, int n, int preserve); |
| 386 int sqlite3VdbeCloseStatement(Vdbe *, int); |
| 387 void sqlite3VdbeFrameDelete(VdbeFrame*); |
| 388 int sqlite3VdbeFrameRestore(VdbeFrame *); |
| 389 void sqlite3VdbeMemStoreType(Mem *pMem); |
| 390 |
| 391 #if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE>0 |
| 392 void sqlite3VdbeEnter(Vdbe*); |
| 393 void sqlite3VdbeLeave(Vdbe*); |
| 394 #else |
| 395 # define sqlite3VdbeEnter(X) |
| 396 # define sqlite3VdbeLeave(X) |
| 397 #endif |
| 398 |
| 399 #ifdef SQLITE_DEBUG |
| 400 void sqlite3VdbeMemPrepareToChange(Vdbe*,Mem*); |
| 401 #endif |
| 402 |
| 403 #ifndef SQLITE_OMIT_FOREIGN_KEY |
| 404 int sqlite3VdbeCheckFk(Vdbe *, int); |
| 405 #else |
| 406 # define sqlite3VdbeCheckFk(p,i) 0 |
| 407 #endif |
| 408 |
| 409 int sqlite3VdbeMemTranslate(Mem*, u8); |
| 410 #ifdef SQLITE_DEBUG |
| 411 void sqlite3VdbePrintSql(Vdbe*); |
| 412 void sqlite3VdbeMemPrettyPrint(Mem *pMem, char *zBuf); |
| 413 #endif |
| 414 int sqlite3VdbeMemHandleBom(Mem *pMem); |
| 415 |
| 416 #ifndef SQLITE_OMIT_INCRBLOB |
| 417 int sqlite3VdbeMemExpandBlob(Mem *); |
| 418 #else |
| 419 #define sqlite3VdbeMemExpandBlob(x) SQLITE_OK |
| 420 #endif |
| 421 |
| 422 #endif /* !defined(_VDBEINT_H_) */ |
OLD | NEW |