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Avoid calling sqlite3BtreeEnter() in a corner case where the corresponding database handle mutex (sqlite3.mutex) may not be held. This prevents a potential deadlock or crash that can occur if the backup API, shared-cache mode and SQLITE_HAVE_CODEC are all in use.

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FossilOrigin-Name: 89b8c377a6f03d9fa885f3f94c1f0b1eec263dea
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dan
2012-09-28 20:23:42 +00:00
parent 70a1b71fb6
commit 0094f37e1f
5 changed files with 32 additions and 12 deletions
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src/btree.h
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@@ -71,6 +71,7 @@ int sqlite3BtreeMaxPageCount(Btree*,int);
u32 sqlite3BtreeLastPage(Btree*);
int sqlite3BtreeSecureDelete(Btree*,int);
int sqlite3BtreeGetReserve(Btree*);
int sqlite3BtreeGetReserveNoMutex(Btree *p);
int sqlite3BtreeSetAutoVacuum(Btree *, int);
int sqlite3BtreeGetAutoVacuum(Btree *);
int sqlite3BtreeBeginTrans(Btree*,int);