public virtual void MonitorNotifyDataChange(NodeId id, DataValue dv)
{
Application.ServerMonitorKey key = new Application.ServerMonitorKey(id, NodeAttribute.Value);
try
{
this.monitorMapRW.EnterReadLock();
if (!this.monitorMap.TryGetValue(key, out List <MonitoredItem> monitoredItemList))
{
return;
}
for (int index = 0; index < monitoredItemList.Count; ++index)
{
if (monitoredItemList[index].QueueData.Count >= monitoredItemList[index].QueueSize)
{
monitoredItemList[index].QueueOverflowed = true;
}
else
{
monitoredItemList[index].QueueData.Enqueue(dv);
}
if (monitoredItemList[index].ParentSubscription.ChangeNotification == Subscription.ChangeNotificationType.None)
{
monitoredItemList[index].ParentSubscription.ChangeNotification = Subscription.ChangeNotificationType.AtPublish;
}
}
}
finally
{
this.monitorMapRW.ExitReadLock();
}
}
public virtual bool MonitorAdd(object session, MonitoredItem mi)
{
if (!this.AddressSpaceTable.TryGetValue(mi.ItemToMonitor.NodeId, out LibUA.Core.Node _) || !this.SessionHasPermissionToRead(session, mi.ItemToMonitor.NodeId))
{
return(false);
}
Application.ServerMonitorKey key = new Application.ServerMonitorKey(mi.ItemToMonitor);
try
{
this.monitorMapRW.EnterWriteLock();
if (this.monitorMap.TryGetValue(key, out List <MonitoredItem> monitoredItemList))
{
monitoredItemList.Add(mi);
}
else
{
this.monitorMap.Add(key, new List <MonitoredItem>()
{
mi
});
}
}
finally
{
this.monitorMapRW.ExitWriteLock();
}
return(true);
}
public virtual void MonitorRemove(object session, MonitoredItem mi)
{
Application.ServerMonitorKey key = new Application.ServerMonitorKey(mi.ItemToMonitor);
try
{
this.monitorMapRW.EnterWriteLock();
if (!this.monitorMap.TryGetValue(key, out List <MonitoredItem> monitoredItemList))
{
return;
}
monitoredItemList.Remove(mi);
}
finally
{
this.monitorMapRW.ExitWriteLock();
}
}