void IConnectedPeerStreamExtension.OnReceivedSignalingPacket(BinaryReader reader) // manager thread
{
var subtPacketType = (SubtPacketType)reader.ReadByte();
switch (subtPacketType)
{
case SubtPacketType.RemoteStatus:
var p = new SubtRemoteStatusPacket(reader);
// SubtLocalPeer.WriteToLog($"received from peer {SubtConnectedPeer.RemotePeerId}: SUBT status packet: {p}");
LatestRemoteStatus = p;
_stream.MarkAsActiveByExtension();
if (_rxBwBeforeJB.OutputPerUnit > p.RecentTxBandwidth * 5)
{
EmitPainToDeveloper($"_rxBwBeforeJB.OutputPerUnit={_rxBwBeforeJB.OutputPerUnit} > p.RecentTxBandwidth={p.RecentTxBandwidth}");
}
break;
case SubtPacketType.AdjustmentRequest:
var adj = new AdjustmentRequestPacket(reader);
SubtLocalPeer.WriteToLog($"{this} received adjustment request: {adj}");
if (adj.TxTargetBandwidth > this.TargetTxBandwidth)
{ // increase
if (SubtLocalPeer.ImHealthyAndReadyFor100kbpsU2uSymbiosis)
{
// check requested BW
this.TargetTxBandwidth = Math.Min(adj.TxTargetBandwidth, MaxTxBandwidthToAcceptFromRemoteSide);
SubtLocalPeer.WriteToLog($"{this} bandwidth increased to {MiscProcedures.BandwidthToString(this.TargetTxBandwidth)}");
}
else
{
SubtLocalPeer.WriteToLog($"{this} is not healthy to increase bandwidth");
}
}
else // decrease
{
this.TargetTxBandwidth = adj.TxTargetBandwidth;
SubtLocalPeer.WriteToLog($"{this} bandwidth decreased to {MiscProcedures.BandwidthToString(this.TargetTxBandwidth)}");
}
// respond
var resp = new AdjustmentResponsePacket(this.TargetTxBandwidth);
var respData = resp.Encode(this);
_stream.SendPacket(respData, respData.Length);
_lastTimeReceivedAdjustmentRequestUTC = SubtLocalPeer.LocalPeer.DateTimeNowUtc;
break;
case SubtPacketType.AdjustmentResponse:
var adjResp = new AdjustmentResponsePacket(reader);
if (PendingAdjustmentRequestPacket != null)
{ // we got response from remote peer
SubtLocalPeer.WriteToLog($"{this} received adjustment response: {adjResp}");
// adjust local tx BW, according to remote BW. check what is responded
this.TargetTxBandwidth = Math.Min(adjResp.TxTargetBandwidth, PendingAdjustmentRequestPacket.TxTargetBandwidth);
PendingAdjustmentRequestPacket = null;
PendingAdjustmentRequestPacketData = null;
}
break;
}
}
public void SendBandwidthAdjustmentRequest_OnResponseAdjustLocalTxBw(float requestedTxBandwidthAtRemotePeer)
{
var remotePeerId = SubtConnectedPeer.RemotePeerId;
if (remotePeerId != null)
{
PendingAdjustmentRequestPacket = new AdjustmentRequestPacket(requestedTxBandwidthAtRemotePeer);
SubtLocalPeer.WriteToLog($"{this} sends adjustment request {PendingAdjustmentRequestPacket}");
PendingAdjustmentRequestPacketData = PendingAdjustmentRequestPacket.Encode(this);
_stream.SendPacket(PendingAdjustmentRequestPacketData, PendingAdjustmentRequestPacketData.Length);
}
}