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| 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 ** The maximum number of times that a statement will try to reparse | |
| 23 ** itself before giving up and returning SQLITE_SCHEMA. | |
| 24 */ | |
| 25 #ifndef SQLITE_MAX_SCHEMA_RETRY | |
| 26 # define SQLITE_MAX_SCHEMA_RETRY 50 | |
| 27 #endif | |
| 28 | |
| 29 /* | |
| 30 ** SQL is translated into a sequence of instructions to be | |
| 31 ** executed by a virtual machine. Each instruction is an instance | |
| 32 ** of the following structure. | |
| 33 */ | |
| 34 typedef struct VdbeOp Op; | |
| 35 | |
| 36 /* | |
| 37 ** Boolean values | |
| 38 */ | |
| 39 typedef unsigned Bool; | |
| 40 | |
| 41 /* Opaque type used by code in vdbesort.c */ | |
| 42 typedef struct VdbeSorter VdbeSorter; | |
| 43 | |
| 44 /* Opaque type used by the explainer */ | |
| 45 typedef struct Explain Explain; | |
| 46 | |
| 47 /* Elements of the linked list at Vdbe.pAuxData */ | |
| 48 typedef struct AuxData AuxData; | |
| 49 | |
| 50 /* | |
| 51 ** A cursor is a pointer into a single BTree within a database file. | |
| 52 ** The cursor can seek to a BTree entry with a particular key, or | |
| 53 ** loop over all entries of the Btree. You can also insert new BTree | |
| 54 ** entries or retrieve the key or data from the entry that the cursor | |
| 55 ** is currently pointing to. | |
| 56 ** | |
| 57 ** Cursors can also point to virtual tables, sorters, or "pseudo-tables". | |
| 58 ** A pseudo-table is a single-row table implemented by registers. | |
| 59 ** | |
| 60 ** Every cursor that the virtual machine has open is represented by an | |
| 61 ** instance of the following structure. | |
| 62 */ | |
| 63 struct VdbeCursor { | |
| 64 BtCursor *pCursor; /* The cursor structure of the backend */ | |
| 65 Btree *pBt; /* Separate file holding temporary table */ | |
| 66 KeyInfo *pKeyInfo; /* Info about index keys needed by index cursors */ | |
| 67 int seekResult; /* Result of previous sqlite3BtreeMoveto() */ | |
| 68 int pseudoTableReg; /* Register holding pseudotable content. */ | |
| 69 i16 nField; /* Number of fields in the header */ | |
| 70 u16 nHdrParsed; /* Number of header fields parsed so far */ | |
| 71 #ifdef SQLITE_DEBUG | |
| 72 u8 seekOp; /* Most recent seek operation on this cursor */ | |
| 73 #endif | |
| 74 i8 iDb; /* Index of cursor database in db->aDb[] (or -1) */ | |
| 75 u8 nullRow; /* True if pointing to a row with no data */ | |
| 76 u8 deferredMoveto; /* A call to sqlite3BtreeMoveto() is needed */ | |
| 77 Bool isEphemeral:1; /* True for an ephemeral table */ | |
| 78 Bool useRandomRowid:1;/* Generate new record numbers semi-randomly */ | |
| 79 Bool isTable:1; /* True if a table requiring integer keys */ | |
| 80 Bool isOrdered:1; /* True if the underlying table is BTREE_UNORDERED */ | |
| 81 Pgno pgnoRoot; /* Root page of the open btree cursor */ | |
| 82 sqlite3_vtab_cursor *pVtabCursor; /* The cursor for a virtual table */ | |
| 83 i64 seqCount; /* Sequence counter */ | |
| 84 i64 movetoTarget; /* Argument to the deferred sqlite3BtreeMoveto() */ | |
| 85 VdbeSorter *pSorter; /* Sorter object for OP_SorterOpen cursors */ | |
| 86 | |
| 87 /* Cached information about the header for the data record that the | |
| 88 ** cursor is currently pointing to. Only valid if cacheStatus matches | |
| 89 ** Vdbe.cacheCtr. Vdbe.cacheCtr will never take on the value of | |
| 90 ** CACHE_STALE and so setting cacheStatus=CACHE_STALE guarantees that | |
| 91 ** the cache is out of date. | |
| 92 ** | |
| 93 ** aRow might point to (ephemeral) data for the current row, or it might | |
| 94 ** be NULL. | |
| 95 */ | |
| 96 u32 cacheStatus; /* Cache is valid if this matches Vdbe.cacheCtr */ | |
| 97 u32 payloadSize; /* Total number of bytes in the record */ | |
| 98 u32 szRow; /* Byte available in aRow */ | |
| 99 u32 iHdrOffset; /* Offset to next unparsed byte of the header */ | |
| 100 const u8 *aRow; /* Data for the current row, if all on one page */ | |
| 101 u32 *aOffset; /* Pointer to aType[nField] */ | |
| 102 u32 aType[1]; /* Type values for all entries in the record */ | |
| 103 /* 2*nField extra array elements allocated for aType[], beyond the one | |
| 104 ** static element declared in the structure. nField total array slots for | |
| 105 ** aType[] and nField+1 array slots for aOffset[] */ | |
| 106 }; | |
| 107 typedef struct VdbeCursor VdbeCursor; | |
| 108 | |
| 109 /* | |
| 110 ** When a sub-program is executed (OP_Program), a structure of this type | |
| 111 ** is allocated to store the current value of the program counter, as | |
| 112 ** well as the current memory cell array and various other frame specific | |
| 113 ** values stored in the Vdbe struct. When the sub-program is finished, | |
| 114 ** these values are copied back to the Vdbe from the VdbeFrame structure, | |
| 115 ** restoring the state of the VM to as it was before the sub-program | |
| 116 ** began executing. | |
| 117 ** | |
| 118 ** The memory for a VdbeFrame object is allocated and managed by a memory | |
| 119 ** cell in the parent (calling) frame. When the memory cell is deleted or | |
| 120 ** overwritten, the VdbeFrame object is not freed immediately. Instead, it | |
| 121 ** is linked into the Vdbe.pDelFrame list. The contents of the Vdbe.pDelFrame | |
| 122 ** list is deleted when the VM is reset in VdbeHalt(). The reason for doing | |
| 123 ** this instead of deleting the VdbeFrame immediately is to avoid recursive | |
| 124 ** calls to sqlite3VdbeMemRelease() when the memory cells belonging to the | |
| 125 ** child frame are released. | |
| 126 ** | |
| 127 ** The currently executing frame is stored in Vdbe.pFrame. Vdbe.pFrame is | |
| 128 ** set to NULL if the currently executing frame is the main program. | |
| 129 */ | |
| 130 typedef struct VdbeFrame VdbeFrame; | |
| 131 struct VdbeFrame { | |
| 132 Vdbe *v; /* VM this frame belongs to */ | |
| 133 VdbeFrame *pParent; /* Parent of this frame, or NULL if parent is main */ | |
| 134 Op *aOp; /* Program instructions for parent frame */ | |
| 135 Mem *aMem; /* Array of memory cells for parent frame */ | |
| 136 u8 *aOnceFlag; /* Array of OP_Once flags for parent frame */ | |
| 137 VdbeCursor **apCsr; /* Array of Vdbe cursors for parent frame */ | |
| 138 void *token; /* Copy of SubProgram.token */ | |
| 139 i64 lastRowid; /* Last insert rowid (sqlite3.lastRowid) */ | |
| 140 int nCursor; /* Number of entries in apCsr */ | |
| 141 int pc; /* Program Counter in parent (calling) frame */ | |
| 142 int nOp; /* Size of aOp array */ | |
| 143 int nMem; /* Number of entries in aMem */ | |
| 144 int nOnceFlag; /* Number of entries in aOnceFlag */ | |
| 145 int nChildMem; /* Number of memory cells for child frame */ | |
| 146 int nChildCsr; /* Number of cursors for child frame */ | |
| 147 int nChange; /* Statement changes (Vdbe.nChanges) */ | |
| 148 }; | |
| 149 | |
| 150 #define VdbeFrameMem(p) ((Mem *)&((u8 *)p)[ROUND8(sizeof(VdbeFrame))]) | |
| 151 | |
| 152 /* | |
| 153 ** A value for VdbeCursor.cacheValid that means the cache is always invalid. | |
| 154 */ | |
| 155 #define CACHE_STALE 0 | |
| 156 | |
| 157 /* | |
| 158 ** Internally, the vdbe manipulates nearly all SQL values as Mem | |
| 159 ** structures. Each Mem struct may cache multiple representations (string, | |
| 160 ** integer etc.) of the same value. | |
| 161 */ | |
| 162 struct Mem { | |
| 163 union MemValue { | |
| 164 double r; /* Real value used when MEM_Real is set in flags */ | |
| 165 i64 i; /* Integer value used when MEM_Int is set in flags */ | |
| 166 int nZero; /* Used when bit MEM_Zero is set in flags */ | |
| 167 FuncDef *pDef; /* Used only when flags==MEM_Agg */ | |
| 168 RowSet *pRowSet; /* Used only when flags==MEM_RowSet */ | |
| 169 VdbeFrame *pFrame; /* Used when flags==MEM_Frame */ | |
| 170 } u; | |
| 171 u16 flags; /* Some combination of MEM_Null, MEM_Str, MEM_Dyn, etc. */ | |
| 172 u8 enc; /* SQLITE_UTF8, SQLITE_UTF16BE, SQLITE_UTF16LE */ | |
| 173 int n; /* Number of characters in string value, excluding '\0' */ | |
| 174 char *z; /* String or BLOB value */ | |
| 175 /* ShallowCopy only needs to copy the information above */ | |
| 176 char *zMalloc; /* Space to hold MEM_Str or MEM_Blob if szMalloc>0 */ | |
| 177 int szMalloc; /* Size of the zMalloc allocation */ | |
| 178 u32 uTemp; /* Transient storage for serial_type in OP_MakeRecord */ | |
| 179 sqlite3 *db; /* The associated database connection */ | |
| 180 void (*xDel)(void*);/* Destructor for Mem.z - only valid if MEM_Dyn */ | |
| 181 #ifdef SQLITE_DEBUG | |
| 182 Mem *pScopyFrom; /* This Mem is a shallow copy of pScopyFrom */ | |
| 183 void *pFiller; /* So that sizeof(Mem) is a multiple of 8 */ | |
| 184 #endif | |
| 185 }; | |
| 186 | |
| 187 /* One or more of the following flags are set to indicate the validOK | |
| 188 ** representations of the value stored in the Mem struct. | |
| 189 ** | |
| 190 ** If the MEM_Null flag is set, then the value is an SQL NULL value. | |
| 191 ** No other flags may be set in this case. | |
| 192 ** | |
| 193 ** If the MEM_Str flag is set then Mem.z points at a string representation. | |
| 194 ** Usually this is encoded in the same unicode encoding as the main | |
| 195 ** database (see below for exceptions). If the MEM_Term flag is also | |
| 196 ** set, then the string is nul terminated. The MEM_Int and MEM_Real | |
| 197 ** flags may coexist with the MEM_Str flag. | |
| 198 */ | |
| 199 #define MEM_Null 0x0001 /* Value is NULL */ | |
| 200 #define MEM_Str 0x0002 /* Value is a string */ | |
| 201 #define MEM_Int 0x0004 /* Value is an integer */ | |
| 202 #define MEM_Real 0x0008 /* Value is a real number */ | |
| 203 #define MEM_Blob 0x0010 /* Value is a BLOB */ | |
| 204 #define MEM_AffMask 0x001f /* Mask of affinity bits */ | |
| 205 #define MEM_RowSet 0x0020 /* Value is a RowSet object */ | |
| 206 #define MEM_Frame 0x0040 /* Value is a VdbeFrame object */ | |
| 207 #define MEM_Undefined 0x0080 /* Value is undefined */ | |
| 208 #define MEM_Cleared 0x0100 /* NULL set by OP_Null, not from data */ | |
| 209 #define MEM_TypeMask 0x01ff /* Mask of type bits */ | |
| 210 | |
| 211 | |
| 212 /* Whenever Mem contains a valid string or blob representation, one of | |
| 213 ** the following flags must be set to determine the memory management | |
| 214 ** policy for Mem.z. The MEM_Term flag tells us whether or not the | |
| 215 ** string is \000 or \u0000 terminated | |
| 216 */ | |
| 217 #define MEM_Term 0x0200 /* String rep is nul terminated */ | |
| 218 #define MEM_Dyn 0x0400 /* Need to call Mem.xDel() on Mem.z */ | |
| 219 #define MEM_Static 0x0800 /* Mem.z points to a static string */ | |
| 220 #define MEM_Ephem 0x1000 /* Mem.z points to an ephemeral string */ | |
| 221 #define MEM_Agg 0x2000 /* Mem.z points to an agg function context */ | |
| 222 #define MEM_Zero 0x4000 /* Mem.i contains count of 0s appended to blob */ | |
| 223 #ifdef SQLITE_OMIT_INCRBLOB | |
| 224 #undef MEM_Zero | |
| 225 #define MEM_Zero 0x0000 | |
| 226 #endif | |
| 227 | |
| 228 /* | |
| 229 ** Clear any existing type flags from a Mem and replace them with f | |
| 230 */ | |
| 231 #define MemSetTypeFlag(p, f) \ | |
| 232 ((p)->flags = ((p)->flags&~(MEM_TypeMask|MEM_Zero))|f) | |
| 233 | |
| 234 /* | |
| 235 ** Return true if a memory cell is not marked as invalid. This macro | |
| 236 ** is for use inside assert() statements only. | |
| 237 */ | |
| 238 #ifdef SQLITE_DEBUG | |
| 239 #define memIsValid(M) ((M)->flags & MEM_Undefined)==0 | |
| 240 #endif | |
| 241 | |
| 242 /* | |
| 243 ** Each auxiliary data pointer stored by a user defined function | |
| 244 ** implementation calling sqlite3_set_auxdata() is stored in an instance | |
| 245 ** of this structure. All such structures associated with a single VM | |
| 246 ** are stored in a linked list headed at Vdbe.pAuxData. All are destroyed | |
| 247 ** when the VM is halted (if not before). | |
| 248 */ | |
| 249 struct AuxData { | |
| 250 int iOp; /* Instruction number of OP_Function opcode */ | |
| 251 int iArg; /* Index of function argument. */ | |
| 252 void *pAux; /* Aux data pointer */ | |
| 253 void (*xDelete)(void *); /* Destructor for the aux data */ | |
| 254 AuxData *pNext; /* Next element in list */ | |
| 255 }; | |
| 256 | |
| 257 /* | |
| 258 ** The "context" argument for an installable function. A pointer to an | |
| 259 ** instance of this structure is the first argument to the routines used | |
| 260 ** implement the SQL functions. | |
| 261 ** | |
| 262 ** There is a typedef for this structure in sqlite.h. So all routines, | |
| 263 ** even the public interface to SQLite, can use a pointer to this structure. | |
| 264 ** But this file is the only place where the internal details of this | |
| 265 ** structure are known. | |
| 266 ** | |
| 267 ** This structure is defined inside of vdbeInt.h because it uses substructures | |
| 268 ** (Mem) which are only defined there. | |
| 269 */ | |
| 270 struct sqlite3_context { | |
| 271 Mem *pOut; /* The return value is stored here */ | |
| 272 FuncDef *pFunc; /* Pointer to function information */ | |
| 273 Mem *pMem; /* Memory cell used to store aggregate context */ | |
| 274 Vdbe *pVdbe; /* The VM that owns this context */ | |
| 275 int iOp; /* Instruction number of OP_Function */ | |
| 276 int isError; /* Error code returned by the function. */ | |
| 277 u8 skipFlag; /* Skip accumulator loading if true */ | |
| 278 u8 fErrorOrAux; /* isError!=0 or pVdbe->pAuxData modified */ | |
| 279 }; | |
| 280 | |
| 281 /* | |
| 282 ** An Explain object accumulates indented output which is helpful | |
| 283 ** in describing recursive data structures. | |
| 284 */ | |
| 285 struct Explain { | |
| 286 Vdbe *pVdbe; /* Attach the explanation to this Vdbe */ | |
| 287 StrAccum str; /* The string being accumulated */ | |
| 288 int nIndent; /* Number of elements in aIndent */ | |
| 289 u16 aIndent[100]; /* Levels of indentation */ | |
| 290 char zBase[100]; /* Initial space */ | |
| 291 }; | |
| 292 | |
| 293 /* A bitfield type for use inside of structures. Always follow with :N where | |
| 294 ** N is the number of bits. | |
| 295 */ | |
| 296 typedef unsigned bft; /* Bit Field Type */ | |
| 297 | |
| 298 /* | |
| 299 ** An instance of the virtual machine. This structure contains the complete | |
| 300 ** state of the virtual machine. | |
| 301 ** | |
| 302 ** The "sqlite3_stmt" structure pointer that is returned by sqlite3_prepare() | |
| 303 ** is really a pointer to an instance of this structure. | |
| 304 ** | |
| 305 ** The Vdbe.inVtabMethod variable is set to non-zero for the duration of | |
| 306 ** any virtual table method invocations made by the vdbe program. It is | |
| 307 ** set to 2 for xDestroy method calls and 1 for all other methods. This | |
| 308 ** variable is used for two purposes: to allow xDestroy methods to execute | |
| 309 ** "DROP TABLE" statements and to prevent some nasty side effects of | |
| 310 ** malloc failure when SQLite is invoked recursively by a virtual table | |
| 311 ** method function. | |
| 312 */ | |
| 313 struct Vdbe { | |
| 314 sqlite3 *db; /* The database connection that owns this statement */ | |
| 315 Op *aOp; /* Space to hold the virtual machine's program */ | |
| 316 Mem *aMem; /* The memory locations */ | |
| 317 Mem **apArg; /* Arguments to currently executing user function */ | |
| 318 Mem *aColName; /* Column names to return */ | |
| 319 Mem *pResultSet; /* Pointer to an array of results */ | |
| 320 Parse *pParse; /* Parsing context used to create this Vdbe */ | |
| 321 int nMem; /* Number of memory locations currently allocated */ | |
| 322 int nOp; /* Number of instructions in the program */ | |
| 323 int nCursor; /* Number of slots in apCsr[] */ | |
| 324 u32 magic; /* Magic number for sanity checking */ | |
| 325 char *zErrMsg; /* Error message written here */ | |
| 326 Vdbe *pPrev,*pNext; /* Linked list of VDBEs with the same Vdbe.db */ | |
| 327 VdbeCursor **apCsr; /* One element of this array for each open cursor */ | |
| 328 Mem *aVar; /* Values for the OP_Variable opcode. */ | |
| 329 char **azVar; /* Name of variables */ | |
| 330 ynVar nVar; /* Number of entries in aVar[] */ | |
| 331 ynVar nzVar; /* Number of entries in azVar[] */ | |
| 332 u32 cacheCtr; /* VdbeCursor row cache generation counter */ | |
| 333 int pc; /* The program counter */ | |
| 334 int rc; /* Value to return */ | |
| 335 u16 nResColumn; /* Number of columns in one row of the result set */ | |
| 336 u8 errorAction; /* Recovery action to do in case of an error */ | |
| 337 u8 minWriteFileFormat; /* Minimum file format for writable database files */ | |
| 338 bft explain:2; /* True if EXPLAIN present on SQL command */ | |
| 339 bft inVtabMethod:2; /* See comments above */ | |
| 340 bft changeCntOn:1; /* True to update the change-counter */ | |
| 341 bft expired:1; /* True if the VM needs to be recompiled */ | |
| 342 bft runOnlyOnce:1; /* Automatically expire on reset */ | |
| 343 bft usesStmtJournal:1; /* True if uses a statement journal */ | |
| 344 bft readOnly:1; /* True for statements that do not write */ | |
| 345 bft bIsReader:1; /* True for statements that read */ | |
| 346 bft isPrepareV2:1; /* True if prepared with prepare_v2() */ | |
| 347 bft doingRerun:1; /* True if rerunning after an auto-reprepare */ | |
| 348 int nChange; /* Number of db changes made since last reset */ | |
| 349 yDbMask btreeMask; /* Bitmask of db->aDb[] entries referenced */ | |
| 350 yDbMask lockMask; /* Subset of btreeMask that requires a lock */ | |
| 351 int iStatement; /* Statement number (or 0 if has not opened stmt) */ | |
| 352 u32 aCounter[5]; /* Counters used by sqlite3_stmt_status() */ | |
| 353 #ifndef SQLITE_OMIT_TRACE | |
| 354 i64 startTime; /* Time when query started - used for profiling */ | |
| 355 #endif | |
| 356 i64 iCurrentTime; /* Value of julianday('now') for this statement */ | |
| 357 i64 nFkConstraint; /* Number of imm. FK constraints this VM */ | |
| 358 i64 nStmtDefCons; /* Number of def. constraints when stmt started */ | |
| 359 i64 nStmtDefImmCons; /* Number of def. imm constraints when stmt started */ | |
| 360 char *zSql; /* Text of the SQL statement that generated this */ | |
| 361 void *pFree; /* Free this when deleting the vdbe */ | |
| 362 VdbeFrame *pFrame; /* Parent frame */ | |
| 363 VdbeFrame *pDelFrame; /* List of frame objects to free on VM reset */ | |
| 364 int nFrame; /* Number of frames in pFrame list */ | |
| 365 u32 expmask; /* Binding to these vars invalidates VM */ | |
| 366 SubProgram *pProgram; /* Linked list of all sub-programs used by VM */ | |
| 367 int nOnceFlag; /* Size of array aOnceFlag[] */ | |
| 368 u8 *aOnceFlag; /* Flags for OP_Once */ | |
| 369 AuxData *pAuxData; /* Linked list of auxdata allocations */ | |
| 370 }; | |
| 371 | |
| 372 /* | |
| 373 ** The following are allowed values for Vdbe.magic | |
| 374 */ | |
| 375 #define VDBE_MAGIC_INIT 0x26bceaa5 /* Building a VDBE program */ | |
| 376 #define VDBE_MAGIC_RUN 0xbdf20da3 /* VDBE is ready to execute */ | |
| 377 #define VDBE_MAGIC_HALT 0x519c2973 /* VDBE has completed execution */ | |
| 378 #define VDBE_MAGIC_DEAD 0xb606c3c8 /* The VDBE has been deallocated */ | |
| 379 | |
| 380 /* | |
| 381 ** Function prototypes | |
| 382 */ | |
| 383 void sqlite3VdbeFreeCursor(Vdbe *, VdbeCursor*); | |
| 384 void sqliteVdbePopStack(Vdbe*,int); | |
| 385 int sqlite3VdbeCursorMoveto(VdbeCursor*); | |
| 386 int sqlite3VdbeCursorRestore(VdbeCursor*); | |
| 387 #if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE) | |
| 388 void sqlite3VdbePrintOp(FILE*, int, Op*); | |
| 389 #endif | |
| 390 u32 sqlite3VdbeSerialTypeLen(u32); | |
| 391 u32 sqlite3VdbeSerialType(Mem*, int); | |
| 392 u32 sqlite3VdbeSerialPut(unsigned char*, Mem*, u32); | |
| 393 u32 sqlite3VdbeSerialGet(const unsigned char*, u32, Mem*); | |
| 394 void sqlite3VdbeDeleteAuxData(Vdbe*, int, int); | |
| 395 | |
| 396 int sqlite2BtreeKeyCompare(BtCursor *, const void *, int, int, int *); | |
| 397 int sqlite3VdbeIdxKeyCompare(sqlite3*,VdbeCursor*,UnpackedRecord*,int*); | |
| 398 int sqlite3VdbeIdxRowid(sqlite3*, BtCursor*, i64*); | |
| 399 int sqlite3VdbeExec(Vdbe*); | |
| 400 int sqlite3VdbeList(Vdbe*); | |
| 401 int sqlite3VdbeHalt(Vdbe*); | |
| 402 int sqlite3VdbeChangeEncoding(Mem *, int); | |
| 403 int sqlite3VdbeMemTooBig(Mem*); | |
| 404 int sqlite3VdbeMemCopy(Mem*, const Mem*); | |
| 405 void sqlite3VdbeMemShallowCopy(Mem*, const Mem*, int); | |
| 406 void sqlite3VdbeMemMove(Mem*, Mem*); | |
| 407 int sqlite3VdbeMemNulTerminate(Mem*); | |
| 408 int sqlite3VdbeMemSetStr(Mem*, const char*, int, u8, void(*)(void*)); | |
| 409 void sqlite3VdbeMemSetInt64(Mem*, i64); | |
| 410 #ifdef SQLITE_OMIT_FLOATING_POINT | |
| 411 # define sqlite3VdbeMemSetDouble sqlite3VdbeMemSetInt64 | |
| 412 #else | |
| 413 void sqlite3VdbeMemSetDouble(Mem*, double); | |
| 414 #endif | |
| 415 void sqlite3VdbeMemInit(Mem*,sqlite3*,u16); | |
| 416 void sqlite3VdbeMemSetNull(Mem*); | |
| 417 void sqlite3VdbeMemSetZeroBlob(Mem*,int); | |
| 418 void sqlite3VdbeMemSetRowSet(Mem*); | |
| 419 int sqlite3VdbeMemMakeWriteable(Mem*); | |
| 420 int sqlite3VdbeMemStringify(Mem*, u8, u8); | |
| 421 i64 sqlite3VdbeIntValue(Mem*); | |
| 422 int sqlite3VdbeMemIntegerify(Mem*); | |
| 423 double sqlite3VdbeRealValue(Mem*); | |
| 424 void sqlite3VdbeIntegerAffinity(Mem*); | |
| 425 int sqlite3VdbeMemRealify(Mem*); | |
| 426 int sqlite3VdbeMemNumerify(Mem*); | |
| 427 void sqlite3VdbeMemCast(Mem*,u8,u8); | |
| 428 int sqlite3VdbeMemFromBtree(BtCursor*,u32,u32,int,Mem*); | |
| 429 void sqlite3VdbeMemRelease(Mem *p); | |
| 430 #define VdbeMemDynamic(X) \ | |
| 431 (((X)->flags&(MEM_Agg|MEM_Dyn|MEM_RowSet|MEM_Frame))!=0) | |
| 432 int sqlite3VdbeMemFinalize(Mem*, FuncDef*); | |
| 433 const char *sqlite3OpcodeName(int); | |
| 434 int sqlite3VdbeMemGrow(Mem *pMem, int n, int preserve); | |
| 435 int sqlite3VdbeMemClearAndResize(Mem *pMem, int n); | |
| 436 int sqlite3VdbeCloseStatement(Vdbe *, int); | |
| 437 void sqlite3VdbeFrameDelete(VdbeFrame*); | |
| 438 int sqlite3VdbeFrameRestore(VdbeFrame *); | |
| 439 int sqlite3VdbeTransferError(Vdbe *p); | |
| 440 | |
| 441 int sqlite3VdbeSorterInit(sqlite3 *, int, VdbeCursor *); | |
| 442 void sqlite3VdbeSorterReset(sqlite3 *, VdbeSorter *); | |
| 443 void sqlite3VdbeSorterClose(sqlite3 *, VdbeCursor *); | |
| 444 int sqlite3VdbeSorterRowkey(const VdbeCursor *, Mem *); | |
| 445 int sqlite3VdbeSorterNext(sqlite3 *, const VdbeCursor *, int *); | |
| 446 int sqlite3VdbeSorterRewind(const VdbeCursor *, int *); | |
| 447 int sqlite3VdbeSorterWrite(const VdbeCursor *, Mem *); | |
| 448 int sqlite3VdbeSorterCompare(const VdbeCursor *, Mem *, int, int *); | |
| 449 | |
| 450 #if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE>0 | |
| 451 void sqlite3VdbeEnter(Vdbe*); | |
| 452 void sqlite3VdbeLeave(Vdbe*); | |
| 453 #else | |
| 454 # define sqlite3VdbeEnter(X) | |
| 455 # define sqlite3VdbeLeave(X) | |
| 456 #endif | |
| 457 | |
| 458 #ifdef SQLITE_DEBUG | |
| 459 void sqlite3VdbeMemAboutToChange(Vdbe*,Mem*); | |
| 460 int sqlite3VdbeCheckMemInvariants(Mem*); | |
| 461 #endif | |
| 462 | |
| 463 #ifndef SQLITE_OMIT_FOREIGN_KEY | |
| 464 int sqlite3VdbeCheckFk(Vdbe *, int); | |
| 465 #else | |
| 466 # define sqlite3VdbeCheckFk(p,i) 0 | |
| 467 #endif | |
| 468 | |
| 469 int sqlite3VdbeMemTranslate(Mem*, u8); | |
| 470 #ifdef SQLITE_DEBUG | |
| 471 void sqlite3VdbePrintSql(Vdbe*); | |
| 472 void sqlite3VdbeMemPrettyPrint(Mem *pMem, char *zBuf); | |
| 473 #endif | |
| 474 int sqlite3VdbeMemHandleBom(Mem *pMem); | |
| 475 | |
| 476 #ifndef SQLITE_OMIT_INCRBLOB | |
| 477 int sqlite3VdbeMemExpandBlob(Mem *); | |
| 478 #define ExpandBlob(P) (((P)->flags&MEM_Zero)?sqlite3VdbeMemExpandBlob(P):0) | |
| 479 #else | |
| 480 #define sqlite3VdbeMemExpandBlob(x) SQLITE_OK | |
| 481 #define ExpandBlob(P) SQLITE_OK | |
| 482 #endif | |
| 483 | |
| 484 #endif /* !defined(_VDBEINT_H_) */ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2363173002:
[sqlite] Remove obsolete reference version 3.8.7.4. (Closed)
