/// <summary>
/// This method removes any event notifiers that have timed out.
/// </summary>
private void RemoveTimedOutTransactionEventNotifiers( )
{
var notifiersToRemove = new List <string>( );
lock ( _syncRoot )
{
foreach (var kvp in _transactionEventNotifiers)
{
string id = kvp.Key;
TransactionEventNotifier eventNotifier = kvp.Value;
if (eventNotifier.HasTimedOut(_timeOutIntervalSeconds))
{
eventNotifier.Enabled = false;
notifiersToRemove.Add(id);
}
}
}
foreach (string id in notifiersToRemove)
{
Rollback(id);
lock ( _syncRoot )
{
_transactionEventNotifiers.Remove(id);
}
}
}
/// <summary>
/// Enlists the specified cache entry as being modified during a transaction.
/// </summary>
/// <param name="transaction">The current transaction</param>
public void EnlistTransaction(Transaction transaction)
{
lock ( _syncRoot )
{
TransactionEventNotifier eventNotifier;
if (transaction != null &&
!_transactionEventNotifiers.TryGetValue(transaction.TransactionInformation.LocalIdentifier, out eventNotifier))
{
eventNotifier = new TransactionEventNotifier(this, transaction);
_transactionEventNotifiers[transaction.TransactionInformation.LocalIdentifier] = eventNotifier;
transaction.EnlistVolatile(eventNotifier, EnlistmentOptions.None);
}
}
RemoveTimedOutTransactionEventNotifiers( );
}