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Overview
| Comment: | Remember the size of the Vdbe.aOp[] array in bytes, to avoid unnecessary calls to sqlite3_msize(). |
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| Timelines: | family | ancestors | descendants | both | trunk |
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| SHA1: |
3e852804c85a5c9f4c4ffafd55d03af6 |
| User & Date: | drh 2016-01-01 16:42:09 |
Context
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2016-01-02
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| 05:00 | Fix a (harmless) typo in an #ifdef for SQLITE_ENABLE_CURSOR_HINTS check-in: 2047d2de user: drh tags: trunk | |
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2016-01-01
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| 16:42 | Remember the size of the Vdbe.aOp[] array in bytes, to avoid unnecessary calls to sqlite3_msize(). check-in: 3e852804 user: drh tags: trunk | |
| 16:26 | Avoid misaligned memory allocations on Sparc in sqlite3VdbeMakeReady(). This fixes a problem introduced by check-in [a9e819082b]. check-in: a304e346 user: drh tags: trunk | |
Changes
Changes to src/sqliteInt.h.
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int iRangeReg; /* First register in temporary register block */ int nErr; /* Number of errors seen */ int nTab; /* Number of previously allocated VDBE cursors */ int nMem; /* Number of memory cells used so far */ int nSet; /* Number of sets used so far */ int nOnce; /* Number of OP_Once instructions so far */ int nOpAlloc; /* Number of slots allocated for Vdbe.aOp[] */ int iFixedOp; /* Never back out opcodes iFixedOp-1 or earlier */ int ckBase; /* Base register of data during check constraints */ int iSelfTab; /* Table of an index whose exprs are being coded */ int iCacheLevel; /* ColCache valid when aColCache[].iLevel<=iCacheLevel */ int iCacheCnt; /* Counter used to generate aColCache[].lru values */ int nLabel; /* Number of labels used */ int *aLabel; /* Space to hold the labels */ |
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int iRangeReg; /* First register in temporary register block */
int nErr; /* Number of errors seen */
int nTab; /* Number of previously allocated VDBE cursors */
int nMem; /* Number of memory cells used so far */
int nSet; /* Number of sets used so far */
int nOnce; /* Number of OP_Once instructions so far */
int nOpAlloc; /* Number of slots allocated for Vdbe.aOp[] */
int szOpAlloc; /* Bytes of memory space allocated for Vdbe.aOp[] */
int iFixedOp; /* Never back out opcodes iFixedOp-1 or earlier */
int ckBase; /* Base register of data during check constraints */
int iSelfTab; /* Table of an index whose exprs are being coded */
int iCacheLevel; /* ColCache valid when aColCache[].iLevel<=iCacheLevel */
int iCacheCnt; /* Counter used to generate aColCache[].lru values */
int nLabel; /* Number of labels used */
int *aLabel; /* Space to hold the labels */
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Changes to src/vdbeaux.c.
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p->pPrev = 0;
db->pVdbe = p;
p->magic = VDBE_MAGIC_INIT;
p->pParse = pParse;
assert( pParse->aLabel==0 );
assert( pParse->nLabel==0 );
assert( pParse->nOpAlloc==0 );
return p;
}
/*
** Change the error string stored in Vdbe.zErrMsg
*/
void sqlite3VdbeError(Vdbe *p, const char *zFormat, ...){
................................................................................
UNUSED_PARAMETER(nOp);
#endif
assert( nOp<=(1024/sizeof(Op)) );
assert( nNew>=(p->nOpAlloc+nOp) );
pNew = sqlite3DbRealloc(p->db, v->aOp, nNew*sizeof(Op));
if( pNew ){
p->nOpAlloc = sqlite3DbMallocSize(p->db, pNew)/sizeof(Op);
v->aOp = pNew;
}
return (pNew ? SQLITE_OK : SQLITE_NOMEM);
}
#ifdef SQLITE_DEBUG
/* This routine is just a convenient place to set a breakpoint that will
................................................................................
*/
nMem += nCursor;
/* Allocate space for memory registers, SQL variables, VDBE cursors and
** an array to marshal SQL function arguments in.
*/
zCsr = ((u8*)p->aOp) + ROUND8(sizeof(Op)*p->nOp); /* Available space */
nFree = sqlite3_msize(p->aOp) - ROUND8(sizeof(Op)*p->nOp); /* Size of zCsr */
resolveP2Values(p, &nArg);
p->usesStmtJournal = (u8)(pParse->isMultiWrite && pParse->mayAbort);
if( pParse->explain && nMem<10 ){
nMem = 10;
}
memset(zCsr, 0, nFree);
|
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p->pPrev = 0; db->pVdbe = p; p->magic = VDBE_MAGIC_INIT; p->pParse = pParse; assert( pParse->aLabel==0 ); assert( pParse->nLabel==0 ); assert( pParse->nOpAlloc==0 ); assert( pParse->szOpAlloc==0 ); return p; } /* ** Change the error string stored in Vdbe.zErrMsg */ void sqlite3VdbeError(Vdbe *p, const char *zFormat, ...){ ................................................................................ UNUSED_PARAMETER(nOp); #endif assert( nOp<=(1024/sizeof(Op)) ); assert( nNew>=(p->nOpAlloc+nOp) ); pNew = sqlite3DbRealloc(p->db, v->aOp, nNew*sizeof(Op)); if( pNew ){ p->szOpAlloc = sqlite3DbMallocSize(p->db, pNew); p->nOpAlloc = p->szOpAlloc/sizeof(Op); v->aOp = pNew; } return (pNew ? SQLITE_OK : SQLITE_NOMEM); } #ifdef SQLITE_DEBUG /* This routine is just a convenient place to set a breakpoint that will ................................................................................ */ nMem += nCursor; /* Allocate space for memory registers, SQL variables, VDBE cursors and ** an array to marshal SQL function arguments in. */ zCsr = ((u8*)p->aOp) + ROUND8(sizeof(Op)*p->nOp); /* Available space */ nFree = pParse->szOpAlloc - ROUND8(sizeof(Op)*p->nOp); /* Size of zCsr */ resolveP2Values(p, &nArg); p->usesStmtJournal = (u8)(pParse->isMultiWrite && pParse->mayAbort); if( pParse->explain && nMem<10 ){ nMem = 10; } memset(zCsr, 0, nFree); |