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Improvements to the way that OOM errors are processed.

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FossilOrigin-Name: c3ef03478a5788c855b3aef385d43ae7f494f440
This commit is contained in:
drh
2016-02-05 01:55:27 +00:00
parent e514f651d0
commit 4a642b6060
30 changed files with 166 additions and 125 deletions
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9
src/select.c
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@@ -1016,7 +1016,7 @@ KeyInfo *sqlite3KeyInfoAlloc(sqlite3 *db, int N, int X){
p->nRef = 1;
memset(&p[1], 0, nExtra);
}else{
db->mallocFailed = 1;
sqlite3OomFault(db);
}
return p;
}
@@ -1677,7 +1677,7 @@ int sqlite3ColumnsFromExprList(
pCol->zName = zName;
sqlite3ColumnPropertiesFromName(0, pCol);
if( zName && sqlite3HashInsert(&ht, zName, pCol)==pCol ){
db->mallocFailed = 1;
sqlite3OomFault(db);
}
}
sqlite3HashClear(&ht);
@@ -1764,7 +1764,7 @@ Table *sqlite3ResultSetOfSelect(Parse *pParse, Select *pSelect){
}
/* The sqlite3ResultSetOfSelect() is only used n contexts where lookaside
** is disabled */
assert( db->lookaside.bEnabled==0 );
assert( db->lookaside.bDisable );
pTab->nRef = 1;
pTab->zName = 0;
pTab->nRowLogEst = 200; assert( 200==sqlite3LogEst(1048576) );
@@ -5562,7 +5562,8 @@ int sqlite3Select(
if( flag ){
pMinMax = sqlite3ExprListDup(db, pMinMax, 0);
pDel = pMinMax;
if( pMinMax && !db->mallocFailed ){
assert( db->mallocFailed || pMinMax!=0 );
if( !db->mallocFailed ){
pMinMax->a[0].sortOrder = flag!=WHERE_ORDERBY_MIN ?1:0;
pMinMax->a[0].pExpr->op = TK_COLUMN;
}