internal bool PreprocessPacketToClient(ArraySegment <byte> packet, HlapiConn destination)
{
//I have no idea if the HLAPI handles loopback. Whether it does or does not isn't important though - it's more
//efficient to handle the loopback special case directly instead of passing through the entire network system!
//This should never even be called if this peer is not the host!
if (Server == null)
{
throw Log.CreatePossibleBugException("server packet preprocessing running, but this peer is not a server", "8f9dc0a0-1b48-4a7f-9bb6-f767b2542ab1");
}
//If there is no local client (e.g. this is a dedicated server) then there can't possibly be loopback
if (Client == null)
{
return(false);
}
//Is this loopback?
if (NetworkManager.singleton.client.connection != destination.Connection)
{
return(false);
}
//This is loopback!
// check that we have a valid local client (in cases of startup or in-progress shutdowns)
if (Client != null)
{
// Don't immediately deliver the packet, add it to a queue and deliver it next frame. This prevents the local client from executing "within" ...
// ...the local server which can cause confusing stack traces.
_loopbackQueue.Add(packet.CopyTo(_loopbackBuffers.Get()));
}
return(true);
}
/// <summary>
/// Deliver a new encoded audio packet
/// </summary>
/// <remarks>It will be placed into a transfer buffer and will be moved into the actual buffer when FlushTransferBuffer is called on the audio playback thread</remarks>
/// <param name="packet"></param>
/// <param name="now"></param>
/// <returns>How delayed this packet is from when it should arrive</returns>
public float Push(VoicePacket packet, DateTime now)
{
Log.Trace("Received frame {0} from network", packet.SequenceNumber);
// copy the data out of the frame, as the network thread will re-use the heap allocated things
List <RemoteChannel> channelsCopy = null;
if (packet.Channels != null)
{
channelsCopy = _channelListPool.Get();
channelsCopy.Clear();
channelsCopy.AddRange(packet.Channels);
}
var frameCopy = packet.EncodedAudioFrame.CopyTo(_bytePool.Get());
var packetCopy = new VoicePacket(
packet.SenderPlayerId,
packet.PlaybackOptions.Priority,
packet.PlaybackOptions.AmplitudeMultiplier,
packet.PlaybackOptions.IsPositional,
frameCopy,
packet.SequenceNumber,
channelsCopy
);
// queue the frame onto the transfer buffer
if (!_inputBuffer.TryWrite(packetCopy))
{
Log.Warn("Failed to write an encoded audio packet into the input transfer buffer");
}
// We've received a packet but not been prepared yet, which means audio playback hasn't started yet - immediately flush the transfer buffer
// It's safe to do this because we know playback isn't going, so the audio thread won't be accessing the buffer at the same time as we're flushing
if (!_prepared)
{
FlushTransferBuffer();
}
// calculate how late the packet is
if (!_firstFrameArrival.HasValue)
{
_firstFrameArrival = now;
_firstFrameSeq = packet.SequenceNumber;
return(0);
}
else
{
var expectedTime = _firstFrameArrival.Value + TimeSpan.FromTicks(_frameDuration.Ticks * (packet.SequenceNumber - _firstFrameSeq));
var delay = now - expectedTime;
return((float)delay.TotalSeconds);
}
}
public static DissonanceNetworkMessage Deserialize([NotNull] this NetworkReader reader)
{
var arr = SerializationBuffers.Get();
var length = reader.ReadUInt16();
for (var i = 0; i < length; i++)
{
arr[i] = reader.ReadByte();
}
return(new DissonanceNetworkMessage(new ArraySegment <byte>(arr, 0, length)));
}
/// <summary>
/// Push a new encoded audio packet
/// </summary>
/// <param name="packet"></param>
/// <param name="now"></param>
/// <returns>How delayed this packet is from when it should arrive</returns>
public float Push(VoicePacket packet, DateTime now)
{
Log.Trace("Received frame {0} from network", packet.SequenceNumber);
// copy the data out of the frame, as the network thread will re-use the heap allocated things
List <RemoteChannel> channelsCopy = null;
if (packet.Channels != null)
{
channelsCopy = _channelListPool.Get();
channelsCopy.Clear();
channelsCopy.AddRange(packet.Channels);
}
var frameCopy = packet.EncodedAudioFrame.CopyTo(_bytePool.Get());
var packetCopy = new VoicePacket(
packet.SenderPlayerId,
packet.PlaybackOptions.Priority,
packet.PlaybackOptions.AmplitudeMultiplier,
packet.PlaybackOptions.IsPositional,
frameCopy,
packet.SequenceNumber,
channelsCopy
);
// queue the frame onto the transfer buffer
if (!_inputBuffer.TryWrite(packetCopy))
{
Log.Warn("Failed to write an encoded audio packet into the input transfer buffer");
}
// calculate how late the packet is
if (!_firstFrameArrival.HasValue)
{
_firstFrameArrival = now;
_firstFrameSeq = packet.SequenceNumber;
return(0);
}
else
{
var expectedTime = _firstFrameArrival.Value + TimeSpan.FromTicks(_frameDuration.Ticks * (packet.SequenceNumber - _firstFrameSeq));
var delay = now - expectedTime;
return((float)delay.TotalSeconds);
}
}
private void EnqueueP2P(ushort localId, [NotNull] ICollection <ClientInfo <TPeer?> > destinations, [NotNull] ICollection <KeyValuePair <List <ClientInfo <TPeer?> >, ArraySegment <byte> > > queue, ArraySegment <byte> packet)
{
if (packet.Array == null)
{
throw new ArgumentNullException("packet");
}
if (destinations == null)
{
throw new ArgumentNullException("destinations");
}
if (queue == null)
{
throw new ArgumentNullException("queue");
}
//early exit
if (destinations.Count == 0)
{
return;
}
//Copy destinations into a new list we're allowed to mutate
var dests = _listPool.Get();
dests.Clear();
dests.AddRange(destinations);
//Make sure we don't send to ourselves
for (var i = 0; i < dests.Count; i++)
{
if (dests[i].PlayerId == localId)
{
dests.RemoveAt(i);
break;
}
}
//If we were only trying to send to ourself we can early exit now
if (dests.Count == 0)
{
_listPool.Put(dests);
return;
}
//Add to queue to send next update
queue.Add(new KeyValuePair <List <ClientInfo <TPeer?> >, ArraySegment <byte> >(dests, packet));
}
/// <summary>
/// Push a new encoded audio packet
/// </summary>
/// <param name="packet"></param>
/// <param name="now"></param>
/// <returns>How delayed this packet is from when it should arrive</returns>
public float Push(VoicePacket packet, DateTime now)
{
Log.Trace("Received frame {0} from network", packet.SequenceNumber);
// copy the data out of the frame, as the network thread will re-use the array
var array = _bytePool.Get();
var frame = packet.EncodedAudioFrame.CopyTo(array);
// queue the frame onto the transfer buffer
var copy = new EncodedAudio(packet.SequenceNumber, frame);
if (!_inputBuffer.Write(copy))
{
Log.Warn("Failed to write an encoded audio packet into the input transfer buffer");
}
//Copy across the stream metadata
//N.b. doing this means the metadata is surfaced <buffer length> too early
Priority = packet.Priority;
Positional = packet.Positional;
// calculate how late the packet is
if (!_firstFrameArrival.HasValue)
{
_firstFrameArrival = now;
_firstFrameSeq = packet.SequenceNumber;
return(0);
}
else
{
var expectedTime = _firstFrameArrival.Value + TimeSpan.FromTicks(_frameDuration.Ticks * (packet.SequenceNumber - _firstFrameSeq));
var delay = now - expectedTime;
return((float)delay.TotalSeconds);
}
}
public static Coroutine <T> Create()
{
return(Pool.Get());
}
public float[] GetFrameBuffer()
{
return(_inputBufferSource.Get());
}
public DissonanceNetworkMessage(ArraySegment <byte> packet)
{
//We are not allowed to keep a reference to `packet` beyond this point, immediately copy it into a temporary buffer
Data = packet.CopyTo(SerializationBuffers.Get());
}