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The sqlite3_close() interface returns SQLITE_OK even if there are outstanding

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sqlite3_stmt and sqlite3_backup objects.  The connection becomes a zombie.
Resource deallocation is deferred until the last sqlite3_stmt or 
sqlite3_backup object closes.  This is intended to help SQLite play nicer
with garbage collectors.

FossilOrigin-Name: e276a02b7f54e804caa553dca99023416a415e1c
This commit is contained in:
drh
2012-06-02 14:32:21 +00:00
parent ed46682719
commit 4245c405ea
12 changed files with 84 additions and 75 deletions
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2
src/sqliteInt.h
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@@ -974,6 +974,7 @@ struct sqlite3 {
#define SQLITE_MAGIC_SICK 0x4b771290 /* Error and awaiting close */
#define SQLITE_MAGIC_BUSY 0xf03b7906 /* Database currently in use */
#define SQLITE_MAGIC_ERROR 0xb5357930 /* An SQLITE_MISUSE error occurred */
#define SQLITE_MAGIC_ZOMBIE 0x64cffc7f /* Close with last statement close */
/*
** Each SQL function is defined by an instance of the following
@@ -2833,6 +2834,7 @@ void sqlite3CommitTransaction(Parse*);
void sqlite3RollbackTransaction(Parse*);
void sqlite3Savepoint(Parse*, int, Token*);
void sqlite3CloseSavepoints(sqlite3 *);
void sqlite3LeaveMutexAndCloseZombie(sqlite3*);
int sqlite3ExprIsConstant(Expr*);
int sqlite3ExprIsConstantNotJoin(Expr*);
int sqlite3ExprIsConstantOrFunction(Expr*);