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Overview
| Comment: | Make sure lookaside memory allocations are unusable after they are freed. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 3869aef6348018f584137f36f6924193a790e52f |
| User & Date: | drh 2012-05-21 16:59:16 |
Context
|
2012-05-21
| ||
| 21:26 | Merge the nested aggregate query fix (ticket [c2ad16f997ee9c8ed]) unto trunk. check-in: e459c336 user: drh tags: trunk | |
| 19:11 | Convert the NameContext object from using u8 booleans to using individual bits in a single u8 as its booleans. This change might become a basis for a fix for [c2ad16f997ee9c]. check-in: 72226096 user: drh tags: nested-agg | |
| 16:59 | Make sure lookaside memory allocations are unusable after they are freed. check-in: 3869aef6 user: drh tags: trunk | |
| 12:25 | Move some #defines earlier in the file for test_quota.c in order to avoid a use before definition. check-in: fda1ea0b user: drh tags: trunk | |
Changes
Changes to src/malloc.c.
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if( db ){
if( db->pnBytesFreed ){
*db->pnBytesFreed += sqlite3DbMallocSize(db, p);
return;
}
if( isLookaside(db, p) ){
LookasideSlot *pBuf = (LookasideSlot*)p;
pBuf->pNext = db->lookaside.pFree;
db->lookaside.pFree = pBuf;
db->lookaside.nOut--;
return;
}
}
assert( sqlite3MemdebugHasType(p, MEMTYPE_DB) );
|
> > > > |
487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 |
if( db ){
if( db->pnBytesFreed ){
*db->pnBytesFreed += sqlite3DbMallocSize(db, p);
return;
}
if( isLookaside(db, p) ){
LookasideSlot *pBuf = (LookasideSlot*)p;
#if SQLITE_DEBUG
/* Trash all content in the buffer being freed */
memset(p, 0xaa, db->lookaside.sz);
#endif
pBuf->pNext = db->lookaside.pFree;
db->lookaside.pFree = pBuf;
db->lookaside.nOut--;
return;
}
}
assert( sqlite3MemdebugHasType(p, MEMTYPE_DB) );
|