public LinkedListNode<SendParameters> Peek(LinkedList<SendParameters> list, DropRealTimeChunks drop)
{
lock (this) {
if (this.m_Queue.Count > 0) {
LinkedListNode<SendParameters> node = (LinkedListNode<SendParameters>)this.m_Queue.Peek();
if (node.Value.Tags.Priority != MessagePriority.RealTime) {
//If item is not real-time, we're done.
}
else if ((drop == DropRealTimeChunks.Sometimes) &&
(this.m_Queue.Count >= DROP_REALTIME_THRESHOLD) &&
(m_NonRealTimeChunkCount > 0)) {
//Here we drop real-time items when we are over a queue length
//threshold, but only if there is at least one
//non-real-time item in the queue.
while (node.Value.Tags.Priority == MessagePriority.RealTime) {
Trace.WriteLine("Dropping Real-Time Chunk", this.GetType().ToString());
node = (LinkedListNode<SendParameters>)m_Queue.Dequeue();
list.Remove(node);
node = (LinkedListNode<SendParameters>)m_Queue.Peek();
}
}
else if (drop == DropRealTimeChunks.Always) {
//Here we drop real-time items unconditionally until we come to
//a non-real-time item, or until the queue is empty.
while (node.Value.Tags.Priority == MessagePriority.RealTime) {
Trace.WriteLine("Dropping Real-Time Chunk", this.GetType().ToString());
node = (LinkedListNode<SendParameters>)m_Queue.Dequeue();
list.Remove(node);
if (m_Queue.Count > 0) {
node = (LinkedListNode<SendParameters>)m_Queue.Peek();
}
else {
node = null;
break;
}
}
}
return node;
}
}
return null;
}
public LinkedListNode <SendParameters> Peek(LinkedList <SendParameters> list, DropRealTimeChunks drop)
{
lock (this) {
if (this.m_Queue.Count > 0)
{
LinkedListNode <SendParameters> node = (LinkedListNode <SendParameters>) this.m_Queue.Peek();
if (node.Value.Tags.Priority != MessagePriority.RealTime)
{
//If item is not real-time, we're done.
}
else if ((drop == DropRealTimeChunks.Sometimes) &&
(this.m_Queue.Count >= DROP_REALTIME_THRESHOLD) &&
(m_NonRealTimeChunkCount > 0))
{
//Here we drop real-time items when we are over a queue length
//threshold, but only if there is at least one
//non-real-time item in the queue.
while (node.Value.Tags.Priority == MessagePriority.RealTime)
{
Trace.WriteLine("Dropping Real-Time Chunk", this.GetType().ToString());
node = (LinkedListNode <SendParameters>)m_Queue.Dequeue();
list.Remove(node);
node = (LinkedListNode <SendParameters>)m_Queue.Peek();
}
}
else if (drop == DropRealTimeChunks.Always)
{
//Here we drop real-time items unconditionally until we come to
//a non-real-time item, or until the queue is empty.
while (node.Value.Tags.Priority == MessagePriority.RealTime)
{
Trace.WriteLine("Dropping Real-Time Chunk", this.GetType().ToString());
node = (LinkedListNode <SendParameters>)m_Queue.Dequeue();
list.Remove(node);
if (m_Queue.Count > 0)
{
node = (LinkedListNode <SendParameters>)m_Queue.Peek();
}
else
{
node = null;
break;
}
}
}
return(node);
}
}
return(null);
}
