//======================================================================
// 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);
}
}
