/// <summary>
/// Removes a subscription to the list of active subscriptions.
/// </summary>
public void DeactivateSubscription(Subscription subscription)
{
lock (this)
{
for (int ii = 0; ii < m_subscriptions.Count; ii++)
{
if (subscription == m_subscriptions[ii])
{
m_subscriptions.RemoveAt(ii);
return;
}
}
}
}
//======================================================================
// CreateSubscription
/// <summary>
/// Creates a new subscription.
/// </summary>
/// <param name="state">The initial state of the subscription.</param>
/// <returns>The new subscription object.</returns>
public ISubscription CreateSubscription(Opc.Da.SubscriptionState state)
{
if (state == null) throw new ArgumentNullException("state");
lock (this)
{
Opc.Da.SubscriptionState copy = (Opc.Da.SubscriptionState)state.Clone();
// assign unique handle.
copy.ServerHandle = m_nextHandle++;
// assign name.
if (copy.Name == null || copy.Name.Length == 0)
{
copy.Name = String.Format("Subscription{0,2:00}", copy.ServerHandle);
}
// create subscription.
Subscription subscription = new Subscription(m_cache, this, copy);
// save reference.
m_subscriptions[copy.ServerHandle] = subscription;
// return new subscription.
return subscription;
}
}
/// <summary>
/// Adds a subscription to the list of active subscriptions.
/// </summary>
public void ActivateSubscription(Subscription subscription)
{
lock (this)
{
// ensure duplicates are not added.
for (int ii = 0; ii < m_subscriptions.Count; ii++)
{
if (subscription == m_subscriptions[ii])
{
return;
}
}
m_subscriptions.Add(subscription);
}
}
