public bool EnqueueOutgoing(OutgoingPacket packet)
{
int category = (int)packet.Category;
if (category >= 0 && category < m_packetOutboxes.Length)
{
OpenSim.Framework.LocklessQueue<OutgoingPacket> queue = m_packetOutboxes[category];
// Not enough tokens in the bucket, queue this packet
//check the queue
//Dont drop resends this can mess up the buffer pool as well as make the connection situation much worse
if (_currentOutboundQueueSize > MAX_TOTAL_QUEUE_SIZE && (packet.Buffer[0] & Helpers.MSG_RESENT) == 0)
{
//queue already has too much data in it..
//can we drop this packet?
byte flags = packet.Buffer[0];
bool isReliable = (flags & Helpers.MSG_RELIABLE) != 0;
if (!isReliable
&& packet.Type != PacketType.PacketAck
&& packet.Type != PacketType.CompletePingCheck)
{
//packet is unreliable and will be dropped
this.TestReportPacketDrop(packet);
packet.DecRef(m_udpServer.ByteBufferPool);
}
else
{
if (_currentOutboundQueueSize < MAX_TOTAL_QUEUE_SIZE * 1.5)
{
this.TestReportPacketShouldDrop(packet);
Interlocked.Add(ref _currentOutboundQueueSize, packet.DataSize);
packet.AddRef();
queue.Enqueue(packet);
}
else
{
//this connection is in a pretty critical state and probably will never catch up.
//drop all packets until we start to catch up. This includes acks which will disconnect
//the client eventually anyways
this.TestReportCriticalPacketDrop(packet);
packet.DecRef(m_udpServer.ByteBufferPool);
}
}
}
else
{
Interlocked.Add(ref _currentOutboundQueueSize, packet.DataSize);
packet.AddRef();
queue.Enqueue(packet);
}
return true;
}
else
{
// We don't have a token bucket for this category, so it will not be queued
return false;
}
}
/// <summary>
/// Add an unacked packet to the collection
/// </summary>
/// <param name="packet">Packet that is awaiting acknowledgement</param>
/// <returns>True if the packet was successfully added, false if the
/// packet already existed in the collection</returns>
/// <remarks>This does not immediately add the ACK to the collection,
/// it only queues it so it can be added in a thread-safe way later</remarks>
public void Add(OutgoingPacket packet)
{
packet.AddRef();
m_pendingAdds.Enqueue(packet);
}
public void AsyncBeginSend(OutgoingPacket packet)
{
if (!m_shutdownFlag)
{
try
{
packet.AddRef();
m_udpSocket.BeginSendTo(
packet.Buffer.Data,
0,
packet.DataSize,
SocketFlags.None,
packet.Destination,
AsyncEndSend,
packet);
}
catch (SocketException) { }
catch (ObjectDisposedException) { }
}
}
/// <summary>
/// Add an unacked packet to the collection
/// </summary>
/// <param name="packet">Packet that is awaiting acknowledgement</param>
/// <returns>True if the packet was successfully added, false if the
/// packet already existed in the collection</returns>
/// <remarks>This does not immediately add the ACK to the collection,
/// it only queues it so it can be added in a thread-safe way later</remarks>
public void Add(OutgoingPacket packet)
{
packet.AddRef();
m_pendingAdds.Enqueue(packet);
}