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($"{this} received adjustment response: {adjResp}");
// adjust local tx BW, according to remote BW. check what is responded
this.TargetTxBandwidth = Math.Min(adjResp.TxTargetBandwidth, PendingAdjustmentRequestPacket.TxTargetBandwidth);
PendingAdjustmentRequestPacket = null;
PendingAdjustmentRequestPacketData = null;
}
break;
}
}
void IConnectedPeerStreamExtension.OnReceivedSignalingPacket(BinaryReader reader) // manager thread
{
// 1 request of adjustment
// 2 confirmation of adjustment
// 3 measurements report
var subtPacketType = (SubtPacketType)reader.ReadByte();
switch (subtPacketType)
{
case SubtPacketType.RemoteStatus:
var p = new SubtRemoteStatusPacket(reader);
// SubtLocalPeer.WriteToLog($"received measurement: {rxm}");
LatestRemoteStatus = p;
_stream.MarkAsActiveByExtension();
if (_rxBwBeforeJB.OutputPerUnit > p.RecentTxBandwidth * 5)
{
EmitPainToDeveloper($"_rxBwBeforeJB.OutputPerUnit={_rxBwBeforeJB.OutputPerUnit} > p.RecentTxBandwidth={p.RecentTxBandwidth}");
}
break;
//case SubtPacketType.AdjustmentSignal:
// var adj = new SubtPacketAdjustmentSignal(reader);
// // SubtLocalPeer.WriteToLog($"received adjustment packet: {adj}");
// SubtConnectedPeer.LatestReceivedAdjustmentSignal = adj;
// break;
}
}
void SendStatusIfNeeded(uint timestamp32)
{
if (_lastTimeSentStatus == null ||
MiscProcedures.TimeStamp1IsLess(_lastTimeSentStatus.Value + SubtLogicConfiguration.RxMeasurementsTransmissionIntervalTicks, timestamp32)
)
{
_lastTimeSentStatus = timestamp32;
var remotePeerId = SubtConnectedPeer.RemotePeerId;
if (remotePeerId != null)
{
bool iwantToIncreaseBandwidthUntilHighPacketLoss = false;
if (SubtLocalPeer.LocalPeer.Configuration.RoleAsUser)
{ // initially this signal comes from user
iwantToIncreaseBandwidthUntilHighPacketLoss = SubtLocalPeer.Configuration.BandwidthTargetMbps == null;
}
else if (SubtLocalPeer.LocalPeer.Configuration.RoleAsSharedPassive)
{ // and then gets reflected from sharedPassive peers
iwantToIncreaseBandwidthUntilHighPacketLoss = LatestRemoteStatus?.IwantToIncreaseBandwidthUntilHighPacketLoss == true;
}
var data = new SubtRemoteStatusPacket(_rxMeasurement.RecentBandwidth, _rxMeasurement.RecentPacketLoss,
this.RecentTxBandwidth,
iwantToIncreaseBandwidthUntilHighPacketLoss,
SubtLocalPeer.LocalPeer.Configuration.RoleAsSharedPassive)
.Encode(this);
_stream.SendPacket(data, data.Length);
}
}
}
void SendStatusIfNeeded(uint timestamp32) // sender thread
{
if (_lastTimeSentStatus == null ||
MiscProcedures.TimeStamp1IsLess(_lastTimeSentStatus.Value + SubtLogicConfiguration.SubtRemoteStatusPacketTransmissionIntervalTicks, timestamp32)
)
{
_lastTimeSentStatus = timestamp32;
var remotePeerId = SubtConnectedPeer.RemotePeerId;
if (remotePeerId != null)
{
var statusPacket = new SubtRemoteStatusPacket(_rxMeasurement.RecentBandwidth, _rxMeasurement.RecentPacketLoss,
this.RecentTxBandwidth,
SubtLocalPeer.LocalPeer.Configuration.RoleAsSharedPassive,
SubtLocalPeer.ImHealthyAndReadyFor100kbpsU2uSymbiosis
);
var data = statusPacket.Encode(this);
_stream.SendPacket(data, data.Length);
}
}
}
void SendStatusIfNeeded(uint timestamp32) // sender thread
{
if (_lastTimeSentStatus == null ||
MiscProcedures.TimeStamp1IsLess(_lastTimeSentStatus.Value + SubtLogicConfiguration.SubtRemoteStatusPacketTransmissionIntervalTicks, timestamp32)
)
{
_lastTimeSentStatus = timestamp32;
var remotePeerId = SubtConnectedPeer.RemotePeerId;
if (remotePeerId != null)
{
bool samePacketAlreadySent = false;
if (_lastSentSubtStatusPacket != null)
{
if (_lastSentSubtStatusPacket.ImHealthyAndReadyFor100kbpsU2uSymbiosis == SubtLocalPeer.ImHealthyAndReadyFor100kbpsU2uSymbiosis &&
_lastSentSubtStatusPacket.RecentTxBandwidth == this.RecentTxBandwidth &&
_lastSentSubtStatusPacket.RecentRxBandwidth == _rxMeasurement.RecentBandwidth)
{
samePacketAlreadySent = true;
}
}
if (!samePacketAlreadySent)
{
var statusPacket = new SubtRemoteStatusPacket(_rxMeasurement.RecentBandwidth, _rxMeasurement.RecentPacketLoss,
this.RecentTxBandwidth,
SubtLocalPeer.LocalPeer.Configuration.RoleAsSharedPassive,
SubtLocalPeer.ImHealthyAndReadyFor100kbpsU2uSymbiosis
);
// SubtLocalPeer.WriteToLog_deepDetail($"sending SUBT status packet: {statusPacket} to peer {SubtConnectedPeer.RemotePeerId}");
var data = statusPacket.Encode(this);
_stream.SendPacket(data, data.Length);
_lastSentSubtStatusPacket = statusPacket;
}
}
}
}
