vdbemem.c File Reference

Go to the source code of this file.

Defines

#define expandBlob(P)   (((P)->flags&MEM_Zero)?sqlite3VdbeMemExpandBlob(P):0)
#define MEMCELLSIZE   (size_t)(&(((Mem *)0)->zMalloc))

Functions

int sqlite3VdbeChangeEncoding (Mem *pMem, int desiredEnc)
int sqlite3VdbeMemGrow (Mem *pMem, int n, int preserve)
int sqlite3VdbeMemMakeWriteable (Mem *pMem)
int sqlite3VdbeMemExpandBlob (Mem *pMem)
int sqlite3VdbeMemNulTerminate (Mem *pMem)
int sqlite3VdbeMemStringify (Mem *pMem, int enc)
int sqlite3VdbeMemFinalize (Mem *pMem, FuncDef *pFunc)
void sqlite3VdbeMemReleaseExternal (Mem *p)
void sqlite3VdbeMemRelease (Mem *p)
static i64 doubleToInt64 (double r)
i64 sqlite3VdbeIntValue (Mem *pMem)
double sqlite3VdbeRealValue (Mem *pMem)
void sqlite3VdbeIntegerAffinity (Mem *pMem)
static void setTypeFlag (Mem *pMem, int f)
int sqlite3VdbeMemIntegerify (Mem *pMem)
int sqlite3VdbeMemRealify (Mem *pMem)
int sqlite3VdbeMemNumerify (Mem *pMem)
void sqlite3VdbeMemSetNull (Mem *pMem)
void sqlite3VdbeMemSetZeroBlob (Mem *pMem, int n)
void sqlite3VdbeMemSetInt64 (Mem *pMem, i64 val)
void sqlite3VdbeMemSetDouble (Mem *pMem, double val)
int sqlite3VdbeMemTooBig (Mem *p)
void sqlite3VdbeMemShallowCopy (Mem *pTo, const Mem *pFrom, int srcType)
int sqlite3VdbeMemCopy (Mem *pTo, const Mem *pFrom)
void sqlite3VdbeMemMove (Mem *pTo, Mem *pFrom)
int sqlite3VdbeMemSetStr (Mem *pMem, const char *z, int n, u8 enc, void(*xDel)(void *))
int sqlite3MemCompare (const Mem *pMem1, const Mem *pMem2, const CollSeq *pColl)
int sqlite3VdbeMemFromBtree (BtCursor *pCur, int offset, int amt, int key, Mem *pMem)
const void * sqlite3ValueText (sqlite3_value *pVal, u8 enc)
sqlite3_value * sqlite3ValueNew (sqlite3 *db)
int sqlite3ValueFromExpr (sqlite3 *db, Expr *pExpr, u8 enc, u8 affinity, sqlite3_value **ppVal)
void sqlite3ValueSetStr (sqlite3_value *v, int n, const void *z, u8 enc, void(*xDel)(void *))
void sqlite3ValueFree (sqlite3_value *v)
int sqlite3ValueBytes (sqlite3_value *pVal, u8 enc)

Define Documentation

#define expandBlob ( P   )     (((P)->flags&MEM_Zero)?sqlite3VdbeMemExpandBlob(P):0)

Definition at line 28 of file vdbemem.c.

Referenced by sqlite3ValueText(), and sqlite3VdbeMemMakeWriteable().

#define MEMCELLSIZE   (size_t)(&(((Mem *)0)->zMalloc))

Definition at line 509 of file vdbemem.c.

Referenced by sqlite3VdbeMemCopy(), and sqlite3VdbeMemShallowCopy().

Function Documentation

static i64 doubleToInt64 ( double  r  )  [static]

Definition at line 300 of file vdbemem.c.

References LARGEST_INT64, and SMALLEST_INT64.

Referenced by sqlite3VdbeIntegerAffinity(), sqlite3VdbeIntValue(), and sqlite3VdbeMemNumerify().

static void setTypeFlag ( Mem *  pMem,
int  f 
) [static]

Definition at line 394 of file vdbemem.c.

References MemSetTypeFlag.

Referenced by sqlite3VdbeMemIntegerify(), sqlite3VdbeMemNumerify(), sqlite3VdbeMemRealify(), sqlite3VdbeMemSetNull(), and sqlite3VdbeMemSetZeroBlob().

int sqlite3MemCompare ( const Mem *  pMem1,
const Mem *  pMem2,
const CollSeq *  pColl 
)

Definition at line 664 of file vdbemem.c.

References CollSeq::enc, Mem::enc, Mem::flags, Mem::i, MEM_Ephem, MEM_Int, MEM_Null, MEM_Real, MEM_Str, Mem::n, CollSeq::pUser, Mem::r, sqlite3ValueText(), sqlite3VdbeMemRelease(), sqlite3VdbeMemShallowCopy(), SQLITE_UTF16BE, SQLITE_UTF16LE, SQLITE_UTF8, Mem::u, CollSeq::xCmp, and Mem::z.

Referenced by minmaxFunc(), minmaxStep(), nullifFunc(), sqlite3VdbeExec(), and sqlite3VdbeRecordCompare().

int sqlite3ValueBytes ( sqlite3_value *  pVal,
u8  enc 
)

Definition at line 1037 of file vdbemem.c.

References Mem::flags, Mem::i, MEM_Blob, MEM_Zero, Mem::n, sqlite3ValueText(), and Mem::u.

Referenced by sqlite3_value_bytes(), and sqlite3_value_bytes16().

void sqlite3ValueFree ( sqlite3_value *  v  ) 

Definition at line 1027 of file vdbemem.c.

References db, sqlite3DbFree(), and sqlite3VdbeMemRelease().

Referenced by callCollNeeded(), freeP4(), sqlite3_close(), sqlite3_complete16(), sqlite3_open16(), sqlite3AlterFinishAddColumn(), and sqlite3ValueFromExpr().

int sqlite3ValueFromExpr ( sqlite3 *  db,
Expr *  pExpr,
u8  enc,
u8  affinity,
sqlite3_value **  ppVal 
)

Definition at line 950 of file vdbemem.c.

References Mem::i, sqlite3::mallocFailed, Token::n, Expr::op, Expr::pLeft, Mem::r, sqlite3DbFree(), sqlite3DbStrNDup(), sqlite3Dequote(), sqlite3HexToBlob(), sqlite3ValueApplyAffinity(), sqlite3ValueFree(), sqlite3ValueFromExpr(), sqlite3ValueNew(), sqlite3ValueSetStr(), sqlite3VdbeMemSetStr(), SQLITE_AFF_NONE, SQLITE_AFF_NUMERIC, SQLITE_DYNAMIC, SQLITE_NOMEM, SQLITE_OK, SQLITE_UTF8, TK_BLOB, TK_FLOAT, TK_INTEGER, TK_STRING, TK_UMINUS, Expr::token, Mem::u, and Token::z.

Referenced by sqlite3AlterFinishAddColumn(), sqlite3ColumnDefault(), and sqlite3ValueFromExpr().

sqlite3_value* sqlite3ValueNew ( sqlite3 *  db  ) 

Definition at line 930 of file vdbemem.c.

References Mem::db, Mem::flags, MEM_Null, sqlite3DbMallocZero(), SQLITE_NULL, and Mem::type.

Referenced by callCollNeeded(), sqlite3_complete16(), sqlite3_open16(), sqlite3Error(), and sqlite3ValueFromExpr().

void sqlite3ValueSetStr ( sqlite3_value *  v,
int  n,
const void *  z,
u8  enc,
void(*)(void *)  xDel 
)

Definition at line 1014 of file vdbemem.c.

References sqlite3VdbeMemSetStr().

Referenced by callCollNeeded(), sqlite3_complete16(), sqlite3_errmsg16(), sqlite3_open16(), sqlite3Error(), sqlite3ValueFromExpr(), and sqlite3VdbeReset().

const void* sqlite3ValueText ( sqlite3_value *  pVal,
u8  enc 
)

Definition at line 892 of file vdbemem.c.

References Mem::db, Mem::enc, expandBlob, Mem::flags, sqlite3::mallocFailed, MEM_Blob, MEM_Ephem, MEM_Null, MEM_Static, sqlite3::mutex, sqlite3_mutex_held, sqlite3VdbeChangeEncoding(), sqlite3VdbeMemMakeWriteable(), sqlite3VdbeMemNulTerminate(), sqlite3VdbeMemStringify(), SQLITE_OK, SQLITE_PTR_TO_INT, SQLITE_UTF16_ALIGNED, and Mem::z.

Referenced by callCollNeeded(), sqlite3_complete16(), sqlite3_open16(), sqlite3_value_text(), sqlite3_value_text16(), sqlite3_value_text16be(), sqlite3_value_text16le(), sqlite3MemCompare(), and sqlite3ValueBytes().

int sqlite3VdbeChangeEncoding ( Mem *  pMem,
int  desiredEnc 
)

Definition at line 43 of file vdbemem.c.

References Mem::db, Mem::enc, Mem::flags, MEM_Str, sqlite3::mutex, sqlite3_mutex_held, sqlite3VdbeMemTranslate(), SQLITE_ERROR, SQLITE_NOMEM, and SQLITE_OK.

Referenced by applyNumericAffinity(), bindText(), sqlite3_bind_value(), sqlite3Utf16to8(), sqlite3ValueText(), sqlite3VdbeExec(), sqlite3VdbeIntValue(), sqlite3VdbeMemStringify(), and sqlite3VdbeRealValue().

void sqlite3VdbeIntegerAffinity ( Mem *  pMem  ) 

Definition at line 384 of file vdbemem.c.

References Mem::db, doubleToInt64(), Mem::flags, Mem::i, MEM_Int, MEM_Real, sqlite3::mutex, Mem::r, sqlite3_mutex_held, and Mem::u.

Referenced by applyAffinity(), and sqlite3VdbeExec().

i64 sqlite3VdbeIntValue ( Mem *  pMem  ) 

Definition at line 330 of file vdbemem.c.

References Mem::db, doubleToInt64(), Mem::flags, Mem::i, MEM_Blob, MEM_Int, MEM_Real, MEM_Str, sqlite3::mutex, Mem::r, sqlite3_mutex_held, sqlite3Atoi64(), sqlite3VdbeChangeEncoding(), sqlite3VdbeMemNulTerminate(), SQLITE_UTF8, Mem::u, and Mem::z.

Referenced by sqlite3_value_int(), sqlite3_value_int64(), sqlite3VdbeExec(), and sqlite3VdbeMemIntegerify().

int sqlite3VdbeMemCopy ( Mem *  pTo,
const Mem *  pFrom 
)

Definition at line 532 of file vdbemem.c.

References Mem::flags, MEM_Blob, MEM_Dyn, MEM_Ephem, MEM_Static, MEM_Str, MEMCELLSIZE, sqlite3VdbeMemMakeWriteable(), sqlite3VdbeMemReleaseExternal(), and SQLITE_OK.

Referenced by minmaxStep(), sqlite3_bind_value(), and sqlite3_result_value().

int sqlite3VdbeMemExpandBlob ( Mem *  pMem  ) 

Definition at line 143 of file vdbemem.c.

References Mem::db, Mem::flags, Mem::i, MEM_Blob, MEM_Term, MEM_Zero, sqlite3::mutex, Mem::n, sqlite3_mutex_held, sqlite3VdbeMemGrow(), SQLITE_NOMEM, SQLITE_OK, Mem::u, and Mem::z.

Referenced by sqlite3_value_blob(), and sqlite3VdbeExec().

int sqlite3VdbeMemFinalize ( Mem *  pMem,
FuncDef *  pFunc 
)

Definition at line 238 of file vdbemem.c.

References Mem::db, Mem::flags, sqlite3_context::isError, MEM_Dyn, MEM_Null, sqlite3::mutex, Mem::pDef, sqlite3_context::pFunc, sqlite3_context::pMem, sqlite3_context::s, sqlite3_mutex_held, sqlite3DbFree(), SQLITE_ERROR, SQLITE_OK, Mem::u, Mem::xDel, FuncDef::xFinalize, and Mem::zMalloc.

Referenced by sqlite3VdbeExec(), and sqlite3VdbeMemReleaseExternal().

int sqlite3VdbeMemFromBtree ( BtCursor *  pCur,
int  offset,
int  amt,
int  key,
Mem *  pMem 
)

Definition at line 788 of file vdbemem.c.

References db, Mem::enc, Mem::flags, MEM_Blob, MEM_Dyn, MEM_Ephem, MEM_Term, sqlite3::mutex, Mem::n, sqlite3_mutex_held, sqlite3BtreeCursorDb(), sqlite3BtreeData(), sqlite3BtreeDataFetch(), sqlite3BtreeKey(), sqlite3BtreeKeyFetch(), sqlite3VdbeMemGrow(), sqlite3VdbeMemRelease(), SQLITE_BLOB, SQLITE_OK, Mem::type, Mem::xDel, and Mem::z.

Referenced by sqlite3VdbeExec(), sqlite3VdbeIdxKeyCompare(), and sqlite3VdbeIdxRowid().

int sqlite3VdbeMemGrow ( Mem *  pMem,
int  n,
int  preserve 
)

Definition at line 77 of file vdbemem.c.

References Mem::db, Mem::flags, MEM_Dyn, MEM_Ephem, MEM_Null, MEM_Static, Mem::n, sqlite3DbFree(), sqlite3DbMallocRaw(), sqlite3DbMallocSize(), sqlite3DbReallocOrFree(), SQLITE_NOMEM, SQLITE_OK, Mem::xDel, Mem::z, and Mem::zMalloc.

Referenced by allocateCursor(), sqlite3_aggregate_context(), sqlite3VdbeExec(), sqlite3VdbeList(), sqlite3VdbeMemExpandBlob(), sqlite3VdbeMemFromBtree(), sqlite3VdbeMemMakeWriteable(), sqlite3VdbeMemNulTerminate(), sqlite3VdbeMemSetStr(), and sqlite3VdbeMemStringify().

int sqlite3VdbeMemIntegerify ( Mem *  pMem  ) 

Definition at line 401 of file vdbemem.c.

References Mem::db, Mem::i, MEM_Int, sqlite3::mutex, setTypeFlag(), sqlite3_mutex_held, sqlite3VdbeIntValue(), SQLITE_OK, and Mem::u.

Referenced by sqlite3VdbeExec(), and sqlite3VdbeMemNumerify().

int sqlite3VdbeMemMakeWriteable ( Mem *  pMem  ) 

Definition at line 121 of file vdbemem.c.

References Mem::db, expandBlob, f(), Mem::flags, MEM_Blob, MEM_Str, MEM_Term, sqlite3::mutex, Mem::n, sqlite3_mutex_held, sqlite3VdbeMemGrow(), SQLITE_NOMEM, SQLITE_OK, Mem::z, and Mem::zMalloc.

Referenced by sqlite3ValueText(), sqlite3VdbeExec(), sqlite3VdbeMemCopy(), sqlite3VdbeMemHandleBom(), and sqlite3VdbeMemTranslate().

void sqlite3VdbeMemMove ( Mem *  pTo,
Mem *  pFrom 
)

Definition at line 555 of file vdbemem.c.

References Mem::db, Mem::flags, MEM_Null, sqlite3::mutex, sqlite3_mutex_held, sqlite3VdbeMemRelease(), Mem::xDel, and Mem::zMalloc.

Referenced by sqlite3TransferBindings(), and sqlite3VdbeExec().

int sqlite3VdbeMemNulTerminate ( Mem *  pMem  ) 

Definition at line 170 of file vdbemem.c.

References Mem::db, Mem::flags, MEM_Str, MEM_Term, sqlite3::mutex, Mem::n, sqlite3_mutex_held, sqlite3VdbeMemGrow(), SQLITE_NOMEM, SQLITE_OK, and Mem::z.

Referenced by applyNumericAffinity(), sqlite3ValueText(), sqlite3VdbeExec(), sqlite3VdbeIntValue(), and sqlite3VdbeRealValue().

int sqlite3VdbeMemNumerify ( Mem *  pMem  ) 

Definition at line 423 of file vdbemem.c.

References Mem::db, doubleToInt64(), Mem::flags, MEM_Blob, MEM_Int, MEM_Null, MEM_Real, MEM_Str, sqlite3::mutex, Mem::r, setTypeFlag(), sqlite3_mutex_held, sqlite3VdbeMemIntegerify(), sqlite3VdbeRealValue(), and SQLITE_OK.

Referenced by sqlite3VdbeExec().

int sqlite3VdbeMemRealify ( Mem *  pMem  ) 

Definition at line 412 of file vdbemem.c.

References Mem::db, MEM_Real, sqlite3::mutex, Mem::r, setTypeFlag(), sqlite3_mutex_held, sqlite3VdbeRealValue(), and SQLITE_OK.

Referenced by applyNumericAffinity(), and sqlite3VdbeExec().

void sqlite3VdbeMemRelease ( Mem *  p  ) 

Definition at line 280 of file vdbemem.c.

References Mem::db, sqlite3DbFree(), sqlite3VdbeMemReleaseExternal(), Mem::xDel, Mem::z, and Mem::zMalloc.

Referenced by minMaxFinalize(), releaseMemArray(), sqlite3_clear_bindings(), sqlite3MemCompare(), sqlite3Utf16to8(), sqlite3ValueFree(), sqlite3VdbeDeleteUnpackedRecord(), sqlite3VdbeExec(), sqlite3VdbeIdxKeyCompare(), sqlite3VdbeIdxRowid(), sqlite3VdbeMemFromBtree(), sqlite3VdbeMemMove(), sqlite3VdbeMemReleaseExternal(), sqlite3VdbeMemSetDouble(), sqlite3VdbeMemSetInt64(), sqlite3VdbeMemSetStr(), sqlite3VdbeMemSetZeroBlob(), sqlite3VdbeMemTranslate(), sqlite3VdbeRecordCompare(), and vdbeUnbind().

void sqlite3VdbeMemReleaseExternal ( Mem *  p  ) 

Definition at line 263 of file vdbemem.c.

References Mem::db, Mem::flags, MEM_Agg, MEM_Dyn, sqlite3::mutex, Mem::pDef, sqlite3_mutex_held, sqlite3VdbeMemFinalize(), sqlite3VdbeMemRelease(), Mem::u, Mem::xDel, and Mem::z.

Referenced by sqlite3_aggregate_context(), sqlite3VdbeExec(), sqlite3VdbeMemCopy(), sqlite3VdbeMemRelease(), and sqlite3VdbeMemShallowCopy().

void sqlite3VdbeMemSetDouble ( Mem *  pMem,
double  val 
)

Definition at line 479 of file vdbemem.c.

References Mem::flags, MEM_Real, Mem::r, sqlite3IsNaN(), sqlite3VdbeMemRelease(), sqlite3VdbeMemSetNull(), SQLITE_FLOAT, and Mem::type.

Referenced by sqlite3_bind_double(), and sqlite3_result_double().

void sqlite3VdbeMemSetInt64 ( Mem *  pMem,
i64  val 
)

Definition at line 468 of file vdbemem.c.

References Mem::flags, Mem::i, MEM_Int, sqlite3VdbeMemRelease(), SQLITE_INTEGER, Mem::type, and Mem::u.

Referenced by sqlite3_bind_int64(), sqlite3_result_int(), and sqlite3_result_int64().

void sqlite3VdbeMemSetNull ( Mem *  pMem  ) 

Definition at line 444 of file vdbemem.c.

References MEM_Null, setTypeFlag(), SQLITE_NULL, and Mem::type.

Referenced by sqlite3_result_error_nomem(), sqlite3_result_null(), sqlite3VdbeExec(), sqlite3VdbeMemSetDouble(), and sqlite3VdbeMemSetStr().

int sqlite3VdbeMemSetStr ( Mem *  pMem,
const char *  z,
int  n,
u8  enc,
void(*)(void *)  xDel 
)

Definition at line 576 of file vdbemem.c.

References sqlite3::aLimit, Mem::db, Mem::enc, Mem::flags, MEM_Blob, MEM_Dyn, MEM_Static, MEM_Str, MEM_Term, sqlite3::mutex, Mem::n, sqlite3_mutex_held, sqlite3VdbeMemGrow(), sqlite3VdbeMemHandleBom(), sqlite3VdbeMemRelease(), sqlite3VdbeMemSetNull(), SQLITE_BLOB, SQLITE_DYNAMIC, SQLITE_LIMIT_LENGTH, SQLITE_MAX_LENGTH, SQLITE_NOMEM, SQLITE_OK, SQLITE_STATIC, SQLITE_TEXT, SQLITE_TOOBIG, SQLITE_TRANSIENT, SQLITE_UTF8, Mem::type, Mem::xDel, Mem::z, and Mem::zMalloc.

Referenced by bindText(), sqlite3_result_blob(), sqlite3_result_error(), sqlite3_result_error16(), sqlite3_result_error_toobig(), sqlite3_result_text(), sqlite3_result_text16(), sqlite3_result_text16be(), sqlite3_result_text16le(), sqlite3Utf16to8(), sqlite3ValueFromExpr(), sqlite3ValueSetStr(), sqlite3VdbeExec(), sqlite3VdbeList(), and sqlite3VdbeSetColName().

void sqlite3VdbeMemSetZeroBlob ( Mem *  pMem,
int  n 
)

Definition at line 453 of file vdbemem.c.

References Mem::enc, Mem::flags, Mem::i, MEM_Blob, MEM_Zero, Mem::n, setTypeFlag(), sqlite3VdbeMemRelease(), SQLITE_BLOB, SQLITE_UTF8, Mem::type, and Mem::u.

Referenced by sqlite3_bind_zeroblob(), and sqlite3_result_zeroblob().

void sqlite3VdbeMemShallowCopy ( Mem *  pTo,
const Mem *  pFrom,
int  srcType 
)

Definition at line 517 of file vdbemem.c.

References Mem::flags, MEM_Dyn, MEM_Ephem, MEM_Static, MEMCELLSIZE, sqlite3VdbeMemReleaseExternal(), Mem::xDel, Mem::z, and Mem::zMalloc.

Referenced by sqlite3MemCompare(), and sqlite3VdbeExec().

int sqlite3VdbeMemStringify ( Mem *  pMem,
int  enc 
)

Definition at line 197 of file vdbemem.c.

References Mem::db, Mem::enc, Mem::flags, Mem::i, MEM_Blob, MEM_Int, MEM_Real, MEM_Str, MEM_Term, MEM_Zero, sqlite3::mutex, Mem::n, Mem::r, sqlite3_mutex_held, sqlite3_snprintf(), sqlite3VdbeChangeEncoding(), sqlite3VdbeMemGrow(), SQLITE_NOMEM, SQLITE_OK, SQLITE_UTF8, Mem::u, and Mem::z.

Referenced by applyAffinity(), and sqlite3ValueText().

int sqlite3VdbeMemTooBig ( Mem *  p  ) 

Definition at line 494 of file vdbemem.c.

References sqlite3::aLimit, Mem::db, Mem::flags, Mem::i, MEM_Blob, MEM_Str, MEM_Zero, Mem::n, SQLITE_LIMIT_LENGTH, and Mem::u.

Referenced by sqlite3VdbeExec().

double sqlite3VdbeRealValue ( Mem *  pMem  ) 

Definition at line 359 of file vdbemem.c.

References Mem::db, Mem::flags, Mem::i, MEM_Blob, MEM_Int, MEM_Real, MEM_Str, sqlite3::mutex, Mem::r, sqlite3_mutex_held, sqlite3AtoF(), sqlite3VdbeChangeEncoding(), sqlite3VdbeMemNulTerminate(), SQLITE_UTF8, Mem::u, and Mem::z.

Referenced by sqlite3_value_double(), sqlite3VdbeExec(), sqlite3VdbeMemNumerify(), and sqlite3VdbeMemRealify().

ContextLogger2—ContextLogger2 Logger Daemon Internals—Generated on Mon May 2 13:50:02 2011 by Doxygen 1.6.1