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Change the name of the VdbeMemRelease() macro to VdbeMemReleaseExtern() to

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more accurately reflect what it does.  Performance enhancement to the
sqlite3VdbeMemRelease() function.

FossilOrigin-Name: 3ca5846da7da5e08192a4c96288197be3b7ab6f7
This commit is contained in:
drh
2014-08-25 11:20:27 +00:00
parent 4274dae9e9
commit 12b7c7d8c3
5 changed files with 44 additions and 23 deletions
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8
src/vdbe.c
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@@ -640,7 +640,7 @@ int sqlite3VdbeExec(
assert( pOp->p2<=(p->nMem-p->nCursor) );
pOut = &aMem[pOp->p2];
memAboutToChange(p, pOut);
VdbeMemRelease(pOut);
VdbeMemReleaseExtern(pOut);
pOut->flags = MEM_Int;
}
@@ -1079,7 +1079,7 @@ case OP_Null: { /* out2-prerelease */
while( cnt>0 ){
pOut++;
memAboutToChange(p, pOut);
VdbeMemRelease(pOut);
VdbeMemReleaseExtern(pOut);
pOut->flags = nullFlag;
cnt--;
}
@@ -1165,7 +1165,7 @@ case OP_Move: {
assert( pIn1<=&aMem[(p->nMem-p->nCursor)] );
assert( memIsValid(pIn1) );
memAboutToChange(p, pOut);
VdbeMemRelease(pOut);
VdbeMemReleaseExtern(pOut);
zMalloc = pOut->zMalloc;
memcpy(pOut, pIn1, sizeof(Mem));
#ifdef SQLITE_DEBUG
@@ -2538,7 +2538,7 @@ case OP_Column: {
if( pC->szRow>=aOffset[p2+1] ){
/* This is the common case where the desired content fits on the original
** page - where the content is not on an overflow page */
VdbeMemRelease(pDest);
VdbeMemReleaseExtern(pDest);
sqlite3VdbeSerialGet(pC->aRow+aOffset[p2], aType[p2], pDest);
}else{
/* This branch happens only when content is on overflow pages */