internal static OracleInternalConnection GetPooledConnection(
string encryptedConnectionString,
OracleConnectionString options,
OracleConnection owningObject,
out bool isInTransaction)
{
// If Init() has not been called, call it and set up the cached members
if (null == _manager)
{
Init();
}
DBObjectPool pool = null;
string userId = null;
string poolKey;
if (true == options.IntegratedSecurity)
{
// If using integrated security, find the pool based on the connection string
// postpended with the windows identity userId. Otherwise, simply use the
// connection string. This will guarantee anyone using integrated security will
// always be sent to the appropriate pool.
// If this throws, Open will abort. Is there an issue here? UNDONE BUGBUG
// Will this fail on some platforms?
userId = DBObjectPool.GetCurrentIdentityName();
Debug.Assert(userId != null && userId != "", "OracleConnectionPoolManager: WindowsIdentity.Name returned empty string!");
poolKey = userId + encryptedConnectionString;
}
else
{
poolKey = encryptedConnectionString;
}
pool = _manager.FindPool(poolKey);
if (null == pool)
{
// If we didn't locate a pool, we need to create one.
OracleConnectionPoolControl poolControl;
poolControl = new OracleConnectionPoolControl(poolKey, options);
poolControl.UserId = userId;
pool = _manager.FindOrCreatePool(poolControl);
}
OracleInternalConnection con = (OracleInternalConnection)pool.GetObject(owningObject, out isInTransaction);
// If GetObject() failed, the pool timeout occurred.
if (con == null)
{
throw ADP.PooledOpenTimeout();
}
return(con);
}
private void ReturnToPool()
{
if (_signaled)
{
if (null != _pooledObject && null != _pool)
{
_pool.PutNewObject(_pooledObject);
_pool = null;
_pooledObject = null;
}
if (0 != _cookie && null != _point)
{
_point.Unadvise(_cookie);
_point = null;
_cookie = 0;
}
}
}
public DBObjectPool FindOrCreatePool(DBObjectPoolControl ctrl)
{
Debug.Assert(ctrl != null, "Unexpected DefaultPoolControl null!");
String poolKey = ctrl.Key;
DBObjectPool pool = FindPool(poolKey);
if (pool == null)
{
lock (_map.SyncRoot) {
// Did somebody else created it while we were waiting?
pool = FindPool(poolKey);
if (pool == null)
{
// Create a new pool, shove it into the map:
pool = new DBObjectPool(ctrl);
_map[poolKey] = pool;
}
}
}
return(pool);
}
private bool _signaled; // Bool in case signal occurs before Cookie is set.
public TransactionOutcomeEvents(DBObjectPool pool, DBPooledObject pooledObject, UCOMIConnectionPoint point)
{
_pool = pool;
_pooledObject = pooledObject;
_point = point;
}
public abstract void DestroyObject(DBObjectPool p, DBPooledObject con);
public abstract DBPooledObject CreateObject(DBObjectPool p);
public override void DestroyObject(DBObjectPool p, DBPooledObject con)
{
con.Close();
}
public override DBPooledObject CreateObject(DBObjectPool p)
{
return(new OracleInternalConnection(_connectionOptions, p, _fCheckLifetime, _lifetime));
}
public DBPooledObject(DBObjectPool pool)
{
_pool = pool;
}