public InboundBufferVec Send(NetworkPipelineContext ctx, InboundBufferVec inboundBuffer, ref bool needsResume, ref bool needsUpdate)
{
var simulator = new SimulatorUtility(m_SimulatorParams.MaxPacketCount, m_SimulatorParams.MaxPacketSize, m_SimulatorParams.PacketDelayMs);
if (inboundBuffer.buffer1.Length + inboundBuffer.buffer2.Length > m_SimulatorParams.MaxPacketSize)
{
//UnityEngine.Debug.LogWarning("Incoming packet too large for internal storage buffer. Passing through. [buffer=" + (inboundBuffer.buffer1.Length+inboundBuffer.buffer2.Length) + " packet=" + param->MaxPacketSize + "]");
return(inboundBuffer);
}
var timestamp = ctx.timestamp;
// Packet always delayed atm
bool delayPacket = true;
// Inbound buffer is empty if this is a resumed receive
if (delayPacket && inboundBuffer.buffer1.Length > 0)
{
if (!simulator.DelayPacket(ref ctx, inboundBuffer, ref needsUpdate, timestamp))
{
return(inboundBuffer);
}
}
NativeSlice <byte> returnPacket = default(NativeSlice <byte>);
if (simulator.GetDelayedPacket(ref ctx, ref returnPacket, ref needsResume, ref needsUpdate, timestamp))
{
inboundBuffer.buffer1 = returnPacket;
inboundBuffer.buffer2 = default(NativeSlice <byte>);
return(inboundBuffer);
}
return(default(InboundBufferVec));
}
public InboundBufferVec Send(NetworkPipelineContext ctx, InboundBufferVec inboundBuffer, ref bool needsResume, ref bool needsUpdate)
{
// Request an update to see if a queued packet needs to be resent later or if an ack packet should be sent
needsUpdate = true;
var header = new ReliableUtility.PacketHeader();
unsafe
{
var reliable = (ReliableUtility.Context *)ctx.internalProcessBuffer.GetUnsafePtr();
needsResume = ReliableUtility.ReleaseOrResumePackets(ctx);
if (inboundBuffer.buffer1.Length > 0)
{
reliable->LastSentTime = ctx.timestamp;
ReliableUtility.Write(ctx, inboundBuffer, ref header);
ctx.header.WriteBytes((byte *)&header, UnsafeUtility.SizeOf <ReliableUtility.PacketHeader>());
if (reliable->Resume != ReliableUtility.NullEntry)
{
needsResume = true;
}
reliable->PreviousTimestamp = ctx.timestamp;
return(inboundBuffer);
}
if (reliable->Resume != ReliableUtility.NullEntry)
{
reliable->LastSentTime = ctx.timestamp;
var slice = ReliableUtility.ResumeSend(ctx, out header, ref needsResume);
ctx.header.Clear();
ctx.header.WriteBytes((byte *)&header, UnsafeUtility.SizeOf <ReliableUtility.PacketHeader>());
inboundBuffer.buffer1 = slice;
inboundBuffer.buffer2 = default(NativeSlice <byte>);
reliable->PreviousTimestamp = ctx.timestamp;
return(inboundBuffer);
}
if (ReliableUtility.ShouldSendAck(ctx))
{
reliable->LastSentTime = ctx.timestamp;
ReliableUtility.WriteAckPacket(ctx, ref header);
ctx.header.WriteBytes((byte *)&header, UnsafeUtility.SizeOf <ReliableUtility.PacketHeader>());
reliable->PreviousTimestamp = ctx.timestamp;
// TODO: Sending dummy byte over since the pipeline won't send an empty payload (ignored on receive)
inboundBuffer.buffer1 = new NativeSlice <byte>(ctx.internalProcessBuffer, 0, 1);
return(inboundBuffer);
}
reliable->PreviousTimestamp = ctx.timestamp;
return(inboundBuffer);
}
}
public InboundBufferVec Send(NetworkPipelineContext ctx, InboundBufferVec inboundBuffer, ref bool needsResume, ref bool needsUpdate)
{
needsResume = false;
unsafe
{
var sequenceId = (int *)ctx.internalProcessBuffer.GetUnsafePtr();
ctx.header.Write((ushort)*sequenceId);
*sequenceId = (ushort)(*sequenceId + 1);
}
return(inboundBuffer);
}
public unsafe NativeSlice <byte> Receive(NetworkPipelineContext ctx, NativeSlice <byte> inboundBuffer, ref bool needsResume, ref bool needsUpdate, ref bool needsSendUpdate)
{
var param = (SimulatorUtility.Context *)ctx.internalSharedProcessBuffer.GetUnsafePtr();
var simulator = new SimulatorUtility(m_SimulatorParams.MaxPacketCount, m_SimulatorParams.MaxPacketSize, m_SimulatorParams.PacketDelayMs);
if (inboundBuffer.Length > m_SimulatorParams.MaxPacketSize)
{
//UnityEngine.Debug.LogWarning("Incoming packet too large for internal storage buffer. Passing through. [buffer=" + inboundBuffer.Length + " packet=" + param->MaxPacketSize + "]");
// TODO: Add error code for this
return(inboundBuffer);
}
var timestamp = ctx.timestamp;
if (inboundBuffer.Length > 0)
{
param->PacketCount++;
}
bool delayPacket = param->PacketDelayMs > 0;
// Inbound buffer is empty if this is a resumed receive
if (delayPacket && inboundBuffer.Length > 0)
{
var bufferVec = default(InboundBufferVec);
bufferVec.buffer1 = inboundBuffer;
if (!simulator.DelayPacket(ref ctx, bufferVec, ref needsUpdate, timestamp))
{
return(inboundBuffer);
}
}
if (simulator.ShouldDropPacket(param, m_SimulatorParams, timestamp))
{
param->PacketDropCount++;
return(new NativeSlice <byte>());
}
NativeSlice <byte> returnPacket = default(NativeSlice <byte>);
if (simulator.GetDelayedPacket(ref ctx, ref returnPacket, ref needsResume, ref needsUpdate, timestamp))
{
return(returnPacket);
}
// Pass packet through, nothing was done with it. Or return empty buffer if no inbound buffer is here (then nothing is being resurrected)
if (!delayPacket && inboundBuffer.Length > 0)
{
return(inboundBuffer);
}
return(new NativeSlice <byte>());
}
public NativeSlice <byte> Receive(NetworkPipelineContext ctx, NativeSlice <byte> inboundBuffer, ref bool needsResume, ref bool needsUpdate, ref bool needsSendUpdate)
{
needsResume = false;
var reader = new DataStreamReader(inboundBuffer);
var context = default(DataStreamReader.Context);
unsafe
{
var oldSequenceId = (int *)ctx.internalProcessBuffer.GetUnsafePtr();
ushort sequenceId = reader.ReadUShort(ref context);
if (SequenceHelpers.GreaterThan16(sequenceId, (ushort)*oldSequenceId))
{
*oldSequenceId = sequenceId;
// Skip over the part of the buffer which contains the header
return(inboundBuffer.Slice(sizeof(ushort)));
}
}
return(default(NativeSlice <byte>));
}
public NativeSlice <byte> InvokeReceive(int pipelineStageId, NetworkPipelineContext ctx, NativeSlice <byte> inboundBuffer, ref bool needsResume, ref bool needsUpdate, ref bool needsSendUpdate)
{
switch (pipelineStageId)
{
case 0:
return(m_SimulatorPipelineStage.Receive(ctx, inboundBuffer, ref needsResume, ref needsUpdate, ref needsSendUpdate));
case 1:
return(m_SimulatorPipelineStageInSend.Receive(ctx, inboundBuffer, ref needsResume, ref needsUpdate, ref needsSendUpdate));
case 2:
return(m_NullPipelineStage.Receive(ctx, inboundBuffer, ref needsResume, ref needsUpdate, ref needsSendUpdate));
case 3:
return(m_UnreliableSequencedPipelineStage.Receive(ctx, inboundBuffer, ref needsResume, ref needsUpdate, ref needsSendUpdate));
case 4:
return(m_ReliableSequencedPipelineStage.Receive(ctx, inboundBuffer, ref needsResume, ref needsUpdate, ref needsSendUpdate));
}
return(inboundBuffer);
}
public InboundBufferVec InvokeSend(int pipelineStageId, NetworkPipelineContext ctx, InboundBufferVec inboundBuffer, ref bool needsResume, ref bool needsUpdate)
{
switch (pipelineStageId)
{
case 0:
return(m_SimulatorPipelineStage.Send(ctx, inboundBuffer, ref needsResume, ref needsUpdate));
case 1:
return(m_SimulatorPipelineStageInSend.Send(ctx, inboundBuffer, ref needsResume, ref needsUpdate));
case 2:
return(m_NullPipelineStage.Send(ctx, inboundBuffer, ref needsResume, ref needsUpdate));
case 3:
return(m_UnreliableSequencedPipelineStage.Send(ctx, inboundBuffer, ref needsResume, ref needsUpdate));
case 4:
return(m_ReliableSequencedPipelineStage.Send(ctx, inboundBuffer, ref needsResume, ref needsUpdate));
}
return(inboundBuffer);
}
public InboundBufferVec Send(NetworkPipelineContext ctx, InboundBufferVec inboundBuffer, ref bool needsResume, ref bool needsUpdate)
{
return(inboundBuffer);
}
public NativeSlice <byte> Receive(NetworkPipelineContext ctx, NativeSlice <byte> inboundBuffer, ref bool needsResume, ref bool needsUpdate, ref bool needsSendUpdate)
{
return(new NativeSlice <byte>(inboundBuffer, 0, inboundBuffer.Length));
}
public NativeSlice <byte> Receive(NetworkPipelineContext ctx, NativeSlice <byte> inboundBuffer, ref bool needsResume, ref bool needsUpdate, ref bool needsSendUpdate)
{
needsResume = false;
// Request a send update to see if a queued packet needs to be resent later or if an ack packet should be sent
needsSendUpdate = true;
var context = default(DataStreamReader.Context);
var header = default(ReliableUtility.PacketHeader);
var slice = default(NativeSlice <byte>);
unsafe
{
ReliableUtility.Context * reliable = (ReliableUtility.Context *)ctx.internalProcessBuffer.GetUnsafePtr();
ReliableUtility.SharedContext *shared = (ReliableUtility.SharedContext *)ctx.internalSharedProcessBuffer.GetUnsafePtr();
shared->errorCode = 0;
if (reliable->Resume == ReliableUtility.NullEntry)
{
if (inboundBuffer.Length <= 0)
{
return(slice);
}
var reader = new DataStreamReader(inboundBuffer);
reader.ReadBytes(ref context, (byte *)&header, UnsafeUtility.SizeOf <ReliableUtility.PacketHeader>());
if (header.Type == (ushort)ReliableUtility.PacketType.Ack)
{
ReliableUtility.ReadAckPacket(ctx, header);
inboundBuffer = new NativeSlice <byte>();
return(inboundBuffer);
}
var result = ReliableUtility.Read(ctx, header);
if (result >= 0)
{
var nextExpectedSequenceId = (ushort)(reliable->Delivered + 1);
if (result == nextExpectedSequenceId)
{
reliable->Delivered = result;
slice = inboundBuffer.Slice(UnsafeUtility.SizeOf <ReliableUtility.PacketHeader>());
if (needsResume = SequenceHelpers.GreaterThan16((ushort)shared->ReceivedPackets.Sequence,
(ushort)result))
{
reliable->Resume = (ushort)(result + 1);
}
}
else
{
ReliableUtility.SetPacket(ctx.internalProcessBuffer, result, inboundBuffer.Slice(UnsafeUtility.SizeOf <ReliableUtility.PacketHeader>()));
slice = ReliableUtility.ResumeReceive(ctx, reliable->Delivered + 1, ref needsResume);
}
}
}
else
{
slice = ReliableUtility.ResumeReceive(ctx, reliable->Resume, ref needsResume);
}
}
return(slice);
}
private void ProcessReceiveStage(int stage, NetworkPipeline pipeline, int internalBufferOffset, int internalSharedBufferOffset, ref NetworkPipelineContext ctx, ref NativeSlice <byte> inboundBuffer, ref NativeList <int> resumeQ, ref bool needsUpdate, ref bool needsSendUpdate)
{
bool needsResume = false;
var p = m_Pipelines[pipeline.Id - 1];
ctx.internalProcessBuffer =
new NativeSlice <byte>(m_ReceiveBuffer, internalBufferOffset, m_StageCollection.GetReceiveCapacity(m_StageList[p.FirstStageIndex + stage]));
ctx.internalSharedProcessBuffer =
new NativeSlice <byte>(m_SharedBuffer, internalSharedBufferOffset, m_StageCollection.GetSharedStateCapacity(m_StageList[p.FirstStageIndex + stage]));
var stageId = m_StageList[p.FirstStageIndex + stage];
inboundBuffer = m_StageCollection.InvokeReceive(stageId, ctx, inboundBuffer, ref needsResume, ref needsUpdate, ref needsSendUpdate);
if (needsResume)
{
resumeQ.Add(stage);
}
}
private void ProcessReceiveStagesFrom <T>(T driver, int startStage, NetworkPipeline pipeline, NetworkConnection connection, NativeSlice <byte> buffer) where T : struct, INetworkPipelineReceiver
{
var p = m_Pipelines[pipeline.Id - 1];
var connectionId = connection.m_NetworkId;
var resumeQ = new NativeList <int>(16, Allocator.Temp);
int resumeQStart = 0;
NetworkPipelineContext ctx = default(NetworkPipelineContext);
ctx.timestamp = Timestamp;
var inboundBuffer = new NativeSlice <byte>(buffer, 0, buffer.Length);
ctx.header = default(DataStreamWriter);
NativeList <UpdatePipeline> sendUpdates = new NativeList <UpdatePipeline>(128, Allocator.Temp);
while (true)
{
bool needsUpdate = false;
bool needsSendUpdate = false;
int internalBufferOffset = p.receiveBufferOffset + sizePerConnection[RecveiveSizeOffset] * connectionId;
int internalSharedBufferOffset = p.sharedBufferOffset + sizePerConnection[SharedSizeOffset] * connectionId;
// Adjust offset accounting for stages in front of the starting stage, since we're parsing the stages in reverse order
for (int st = 0; st < startStage; ++st)
{
internalBufferOffset += m_StageCollection.GetReceiveCapacity(m_StageList[p.FirstStageIndex + st]);
internalSharedBufferOffset += m_StageCollection.GetSharedStateCapacity(m_StageList[p.FirstStageIndex + st]);
}
for (int i = startStage; i >= 0; --i)
{
ProcessReceiveStage(i, pipeline, internalBufferOffset, internalSharedBufferOffset, ref ctx, ref inboundBuffer, ref resumeQ, ref needsUpdate, ref needsSendUpdate);
if (needsUpdate)
{
var newUpdate = new UpdatePipeline
{
connection = connection, stage = i, pipeline = pipeline
};
bool uniqueItem = true;
for (int j = 0; j < m_ReceiveStageNeedsUpdate.Length; ++j)
{
if (m_ReceiveStageNeedsUpdate[j].stage == newUpdate.stage &&
m_ReceiveStageNeedsUpdate[j].pipeline.Id == newUpdate.pipeline.Id &&
m_ReceiveStageNeedsUpdate[j].connection == newUpdate.connection)
{
uniqueItem = false;
}
}
if (uniqueItem)
{
m_ReceiveStageNeedsUpdate.Add(newUpdate);
}
}
if (needsSendUpdate)
{
AddSendUpdate(connection, i, pipeline, m_SendStageNeedsUpdate);
}
if (inboundBuffer.Length == 0)
{
break;
}
// Offset needs to be adjusted for the next pipeline (the one in front of this one)
if (i > 0)
{
internalBufferOffset -=
m_StageCollection.GetReceiveCapacity(m_StageList[p.FirstStageIndex + i - 1]);
internalSharedBufferOffset -=
m_StageCollection.GetSharedStateCapacity(m_StageList[p.FirstStageIndex + i - 1]);
}
needsUpdate = false;
}
if (inboundBuffer.Length != 0)
{
driver.PushDataEvent(connection, inboundBuffer);
}
if (resumeQStart >= resumeQ.Length)
{
return;
}
startStage = resumeQ[resumeQStart++];
inboundBuffer = default(NativeSlice <byte>);
}
}
private void ProcessSendStage(int startStage, int internalBufferOffset, int internalSharedBufferOffset,
PipelineImpl p, ref NativeList <int> resumeQ, ref NetworkPipelineContext ctx, ref InboundBufferVec inboundBuffer, ref bool needsUpdate)
{
bool needsResume = false;
ctx.internalProcessBuffer = Unsafe_GetSliceFromReadOnlyArray(sendBuffer, internalBufferOffset,
m_StageCollection.GetSendCapacity(m_StageList[p.FirstStageIndex + startStage]));
ctx.internalSharedProcessBuffer =
Unsafe_GetSliceFromReadOnlyArray(sharedBuffer, internalSharedBufferOffset,
m_StageCollection.GetSharedStateCapacity(m_StageList[p.FirstStageIndex + startStage]));
inboundBuffer = m_StageCollection.InvokeSend(m_StageList[p.FirstStageIndex + startStage], ctx,
inboundBuffer, ref needsResume, ref needsUpdate);
if (needsResume)
{
resumeQ.Add(startStage);
}
}
internal unsafe void ProcessPipelineSend <T>(T driver, int startStage, NetworkPipeline pipeline, NetworkConnection connection,
NativeSlice <byte> payloadBuffer, NativeList <UpdatePipeline> currentUpdates) where T : struct, INetworkPipelineSender
{
NetworkPipelineContext ctx = default(NetworkPipelineContext);
ctx.timestamp = m_timestamp[0];
var p = m_Pipelines[pipeline.Id - 1];
var connectionId = connection.m_NetworkId;
var resumeQ = new NativeList <int>(16, Allocator.Temp);
int resumeQStart = 0;
ctx.header = new DataStreamWriter(p.headerCapacity, Allocator.Temp);
var inboundBuffer = default(InboundBufferVec);
inboundBuffer.buffer1 = payloadBuffer;
var prevHeader = new DataStreamWriter(p.headerCapacity, Allocator.Temp);
while (true)
{
int internalBufferOffset = p.sendBufferOffset + sizePerConnection[SendSizeOffset] * connectionId;
int internalSharedBufferOffset = p.sharedBufferOffset + sizePerConnection[SharedSizeOffset] * connectionId;
bool needsUpdate = false;
// If this is not the first stage we need to fast forward the buffer offset to the correct place
if (startStage > 0)
{
for (int i = 0; i < startStage; ++i)
{
internalBufferOffset += m_StageCollection.GetSendCapacity(m_StageList[p.FirstStageIndex + i]);
internalSharedBufferOffset += m_StageCollection.GetSharedStateCapacity(m_StageList[p.FirstStageIndex + i]);
}
}
for (int i = startStage; i < p.NumStages; ++i)
{
var prevInbound = inboundBuffer;
ProcessSendStage(i, internalBufferOffset, internalSharedBufferOffset, p, ref resumeQ, ref ctx, ref inboundBuffer, ref needsUpdate);
if (inboundBuffer.buffer1 == prevInbound.buffer1 &&
inboundBuffer.buffer2 == prevInbound.buffer2)
{
if (ctx.header.Length > 0)
{
if (prevHeader.Length > 0)
{
ctx.header.WriteBytes(prevHeader.GetUnsafeReadOnlyPtr(), prevHeader.Length);
}
prevHeader.Clear();
var tempHeader = ctx.header;
ctx.header = prevHeader;
prevHeader = tempHeader;
if (inboundBuffer.buffer2.Length == 0)
{
inboundBuffer.buffer2 = inboundBuffer.buffer1;
}
inboundBuffer.buffer1 = prevHeader.GetNativeSlice(0, prevHeader.Length);
}
}
else
{
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (inboundBuffer.buffer2.Length > 0)
{
throw new InvalidOperationException("Pipeline send stages must return either the unmodified inbound buffers or a consolidated version with a single buffer");
}
#endif
// Prev header is now part of payload
prevHeader.Clear();
if (ctx.header.Length > 0)
{
var tempHeader = ctx.header;
ctx.header = prevHeader;
prevHeader = tempHeader;
inboundBuffer.buffer2 = inboundBuffer.buffer1;
inboundBuffer.buffer1 = prevHeader.GetNativeSlice(0, prevHeader.Length);
}
}
if (needsUpdate)
{
AddSendUpdate(connection, i, pipeline, currentUpdates);
}
if (inboundBuffer.buffer1.Length == 0)
{
break;
}
needsUpdate = false;
internalBufferOffset += ctx.internalProcessBuffer.Length;
internalSharedBufferOffset += ctx.internalSharedProcessBuffer.Length;
}
if (inboundBuffer.buffer1.Length != 0)
{
var iov = stackalloc network_iovec[4];
var pipelineId = pipeline.Id;
iov[0].buf = &pipelineId;
iov[0].len = 1;
iov[1].buf = ctx.header.GetUnsafePtr();
iov[1].len = ctx.header.Length;
iov[2].buf = inboundBuffer.buffer1.GetUnsafeReadOnlyPtr();
iov[2].len = inboundBuffer.buffer1.Length;
if (inboundBuffer.buffer2.Length > 0)
{
iov[3].buf = inboundBuffer.buffer2.GetUnsafeReadOnlyPtr();
iov[3].len = inboundBuffer.buffer2.Length;
// FIXME: handle send errors
driver.Send(connection, iov, 4);
}
else
{
driver.Send(connection, iov, 3);
}
}
if (resumeQStart >= resumeQ.Length)
{
break;
}
startStage = resumeQ[resumeQStart++];
prevHeader.Clear();
inboundBuffer = default(InboundBufferVec);
}
}
public NativeSlice <byte> InvokeReceive(int pipelineStageId, NetworkPipelineContext ctx, NativeSlice <byte> inboundBuffer, ref bool needsResume, ref bool needsUpdate, ref bool needsSendUpdate)
{
return(inboundBuffer);
}
public InboundBufferVec InvokeSend(int pipelineStageId, NetworkPipelineContext ctx, InboundBufferVec inboundBuffer, ref bool needsResume, ref bool needsUpdate)
{
return(inboundBuffer);
}