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Add the sqlite3_close_v2() interface (from the deferred-close branch) that

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allows close operations to happen out-of-order in bindings to
garbage-collected langauges.

FossilOrigin-Name: fb8893abeefabe9de44e34dcf4327764481189f5
This commit is contained in:
drh
2012-06-21 15:51:42 +00:00
parent 567520226a 4104337270
commit ed68801b20
9 changed files with 125 additions and 59 deletions
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10
src/backup.c
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@@ -543,14 +543,14 @@ int sqlite3_backup_step(sqlite3_backup *p, int nPage){
*/
int sqlite3_backup_finish(sqlite3_backup *p){
sqlite3_backup **pp; /* Ptr to head of pagers backup list */
MUTEX_LOGIC( sqlite3_mutex *mutex; ) /* Mutex to protect source database */
sqlite3 *pSrcDb; /* Source database connection */
int rc; /* Value to return */
/* Enter the mutexes */
if( p==0 ) return SQLITE_OK;
sqlite3_mutex_enter(p->pSrcDb->mutex);
pSrcDb = p->pSrcDb;
sqlite3_mutex_enter(pSrcDb->mutex);
sqlite3BtreeEnter(p->pSrc);
MUTEX_LOGIC( mutex = p->pSrcDb->mutex; )
if( p->pDestDb ){
sqlite3_mutex_enter(p->pDestDb->mutex);
}
@@ -576,7 +576,7 @@ int sqlite3_backup_finish(sqlite3_backup *p){
/* Exit the mutexes and free the backup context structure. */
if( p->pDestDb ){
sqlite3_mutex_leave(p->pDestDb->mutex);
sqlite3LeaveMutexAndCloseZombie(p->pDestDb);
}
sqlite3BtreeLeave(p->pSrc);
if( p->pDestDb ){
@@ -585,7 +585,7 @@ int sqlite3_backup_finish(sqlite3_backup *p){
** sqlite3_backup_finish(). */
sqlite3_free(p);
}
sqlite3_mutex_leave(mutex);
sqlite3LeaveMutexAndCloseZombie(pSrcDb);
return rc;
}