private void Run()
{
IList snapshots = new ArrayList();
do
{
lock (_snapshotQueue)
{
if (_snapshotQueue.Count == 0)
{
Monitor.Wait(_snapshotQueue);
}
snapshots.Clear();
while (_snapshotQueue.Count > 0)
{
ExternalFeedProducer myProducer = (ExternalFeedProducer)_snapshotQueue[0];
snapshots.Add(myProducer);
_snapshotQueue.RemoveAt(0);
}
}
foreach (ExternalFeedProducer myProducer in snapshots)
{
_listener.OnEvent(myProducer.GetItemName(), myProducer.GetCurrentValues(true), true);
}
} while (true);
}
/// <summary>
/// Forces sending an event with a full snapshot for a stock.
/// </summary>
public void SendCurrentValues(string itemName)
{
ExternalFeedProducer myProducer = (ExternalFeedProducer)_stockGenerators[itemName];
if (myProducer == null)
{
return;
}
lock (_snapshotQueue)
{
_snapshotQueue.Add(myProducer);
Monitor.Pulse(_snapshotQueue);
}
}
/// <summary>
/// Starts generating update events for the stocks. Sumulates attaching
/// and reading from an external broadcast feed.
/// </summary>
public void Start()
{
if (_snapshotSender != null)
{
return;
}
for (int i = 0; i < 30; i++)
{
string itemName = "item" + (i + 1);
ExternalFeedProducer myProducer = new ExternalFeedProducer(itemName,
_openprices[i], _refprices[i], _minprices[i], _maxprices[i],
_updateTimeMeans[i], _updateTimeStdDevs[i], _stockNames[i]);
_stockGenerators[itemName] = myProducer;
myProducer.SetFeedListener(_listener);
myProducer.Start();
}
_snapshotSender = new Thread(new ThreadStart(Run));
_snapshotSender.Start();
}