protected virtual void Dispose(bool disposing)
{
int dataREquestQueuesCount = _dataRequestQueues.Count;
for (int i = 0; i < dataREquestQueuesCount; i++)
{
DataRequestQueue queue = (DataRequestQueue)_dataRequestQueues[i];
queue.Dispose();
}
_dataRequestQueues.Clear();
}
/// <summary>
/// Returns the oldest item from the queue (but leaves the item in the queue)
/// </summary>
/// <param name="targetAddress"></param>
/// <param name="item"></param>
/// <returns></returns>
public bool Peek(UInt16 targetAddress, out DataRequestItem item)
{
DataRequestQueue queue = GetDataRequestQueue(targetAddress);
Object o;
item = null;
if (queue.Peek(out o))
{
if (!(o is DataRequestItem))
{
throw new ArgumentException("Bad object type peeked");
}
item = o as DataRequestItem;
return(true);
}
return(false);
}
/// <summary>
/// Get request queue associated to targetAddress
/// </summary>
/// <param name="targetAddress"></param>
/// <returns>new DataRequestQueue if not yet present, existing queue otherwise</returns>
private DataRequestQueue GetDataRequestQueue(UInt16 targetAddress)
{
lock (_dataRequestQueues)
{
int dataREquestQueuesCount = _dataRequestQueues.Count;
for (int i = 0; i < dataREquestQueuesCount; i++)
{
DataRequestQueue queue = (DataRequestQueue)_dataRequestQueues[i];
if (queue.TargetAddress == targetAddress)
{
return(queue);
}
}
// did not find a corresponding queue. Create a new one.
DataRequestQueue newQueue = new DataRequestQueue(_queueSize, _queueChangedEvent, targetAddress);
_dataRequestQueues.Add((Object)newQueue);
return(newQueue);
}
}
/// <summary>
/// Get request queue associated to targetAddress
/// </summary>
/// <param name="targetAddress"></param>
/// <returns>new DataRequestQueue if not yet present, existing queue otherwise</returns>
private DataRequestQueue GetDataRequestQueue(UInt16 targetAddress)
{
lock (_dataRequestQueues)
{
int dataREquestQueuesCount = _dataRequestQueues.Count;
for (int i = 0; i < dataREquestQueuesCount; i++)
{
DataRequestQueue queue = (DataRequestQueue)_dataRequestQueues[i];
if (queue.TargetAddress == targetAddress) { return queue; }
}
// did not find a corresponding queue. Create a new one.
DataRequestQueue newQueue = new DataRequestQueue(_queueSize, _queueChangedEvent, targetAddress);
_dataRequestQueues.Add((Object)newQueue);
return newQueue;
}
}
/// <summary>
/// Add item to the appropriate queue
/// </summary>
/// <returns>True on success</returns>
public bool Add(DataRequestItem item)
{
DataRequestQueue queue = GetDataRequestQueue(item.TargetShortAddr);
return(queue.Add(item));
}
