public NetworkPipelineStage StaticInitialize(byte *staticInstanceBuffer, int staticInstanceBufferLength, INetworkParameter[] netParams)
{
ReliableUtility.Parameters param = default;
foreach (var netParam in netParams)
{
if (netParam.GetType() == typeof(ReliableUtility.Parameters))
{
param = (ReliableUtility.Parameters)netParam;
}
}
if (param.WindowSize == 0)
{
param = new ReliableUtility.Parameters {
WindowSize = ReliableUtility.ParameterConstants.WindowSize
}
}
;
if (param.WindowSize <= 0 || param.WindowSize > 32)
{
throw new System.ArgumentOutOfRangeException("The reliability pipeline does not support negative WindowSize nor WindowSizes larger than 32");
}
UnsafeUtility.MemCpy(staticInstanceBuffer, ¶m, UnsafeUtility.SizeOf <ReliableUtility.Parameters>());
return(new NetworkPipelineStage(
Receive: ReceiveFunctionPointer,
Send: SendFunctionPointer,
InitializeConnection: InitializeConnectionFunctionPointer,
ReceiveCapacity: ReliableUtility.ProcessCapacityNeeded(param),
SendCapacity: ReliableUtility.ProcessCapacityNeeded(param),
HeaderCapacity: UnsafeUtility.SizeOf <ReliableUtility.PacketHeader>(),
SharedStateCapacity: ReliableUtility.SharedCapacityNeeded(param),
NetworkParameterConstants.MTU
));
}
static unsafe void GatherExtraStats(NativeArray <byte> sendBuffer, NativeArray <byte> sharedBuffer, long timestamp, ref int usedCount, ref int oldestAge, ref int maxRtt, ref int maxProcessingTime)
{
var ptr = (byte *)sendBuffer.GetUnsafePtr();
var ctx = (ReliableUtility.Context *)ptr;
var shared = (ReliableUtility.SharedContext *)sharedBuffer.GetUnsafePtr();
for (int i = 0; i < shared->WindowSize; i++)
{
var seqId = (int *)(ptr + ctx->IndexPtrOffset + i * ctx->IndexStride);
if (*seqId != -1)
{
usedCount++;
var packetInfo = ReliableUtility.GetPacketInformation((byte *)sendBuffer.GetUnsafeReadOnlyPtr(), *seqId);
oldestAge = Math.Max(oldestAge, (int)(timestamp - packetInfo->SendTime));
}
var timingData = ReliableUtility.GetLocalPacketTimer((byte *)sharedBuffer.GetUnsafeReadOnlyPtr(), (ushort)i);
if (timingData->SentTime > 0 && timingData->ReceiveTime > 0)
{
maxRtt = Math.Max(maxRtt, (int)(timingData->ReceiveTime - timingData->SentTime - timingData->ProcessingTime));
}
maxProcessingTime = Math.Max(maxProcessingTime, timingData->ProcessingTime);
}
}
public NetworkPipelineStage StaticInitialize(byte *staticInstanceBuffer, int staticInstanceBufferLength, INetworkParameter[] netParams)
{
ReliableUtility.Parameters param = default;
foreach (var netParam in netParams)
{
if (netParam.GetType() == typeof(ReliableUtility.Parameters))
{
param = (ReliableUtility.Parameters)netParam;
}
}
if (param.WindowSize == 0)
{
param = new ReliableUtility.Parameters {
WindowSize = ReliableUtility.ParameterConstants.WindowSize
}
}
;
UnsafeUtility.MemCpy(staticInstanceBuffer, ¶m, UnsafeUtility.SizeOf <ReliableUtility.Parameters>());
return(new NetworkPipelineStage(
Receive: ReceiveFunctionPointer,
Send: SendFunctionPointer,
InitializeConnection: InitializeConnectionFunctionPointer,
ReceiveCapacity: ReliableUtility.ProcessCapacityNeeded(param),
SendCapacity: ReliableUtility.ProcessCapacityNeeded(param),
HeaderCapacity: UnsafeUtility.SizeOf <ReliableUtility.PacketHeader>(),
SharedStateCapacity: ReliableUtility.SharedCapacityNeeded(param)
));
}
private static void Send(ref NetworkPipelineContext ctx, ref InboundSendBuffer inboundBuffer, ref NetworkPipelineStage.Requests requests)
{
// Request an update to see if a queued packet needs to be resent later or if an ack packet should be sent
requests = NetworkPipelineStage.Requests.Update;
bool needsResume = false;
var header = new ReliableUtility.PacketHeader();
var reliable = (ReliableUtility.Context *)ctx.internalProcessBuffer;
needsResume = ReliableUtility.ReleaseOrResumePackets(ctx);
if (needsResume)
{
requests |= NetworkPipelineStage.Requests.Resume;
}
if (inboundBuffer.bufferLength > 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)
{
requests |= NetworkPipelineStage.Requests.Resume;
}
reliable->PreviousTimestamp = ctx.timestamp;
return;
}
if (reliable->Resume != ReliableUtility.NullEntry)
{
reliable->LastSentTime = ctx.timestamp;
inboundBuffer = ReliableUtility.ResumeSend(ctx, out header, ref needsResume);
if (needsResume)
{
requests |= NetworkPipelineStage.Requests.Resume;
}
ctx.header.Clear();
ctx.header.WriteBytes((byte *)&header, UnsafeUtility.SizeOf <ReliableUtility.PacketHeader>());
reliable->PreviousTimestamp = ctx.timestamp;
return;
}
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.bufferWithHeadersLength = inboundBuffer.headerPadding + 1;
inboundBuffer.bufferWithHeaders = (byte *)UnsafeUtility.Malloc(inboundBuffer.bufferWithHeadersLength, 8, Allocator.Temp);
inboundBuffer.SetBufferFrombufferWithHeaders();
return;
}
reliable->PreviousTimestamp = ctx.timestamp;
}
public void InitializeConnection(NativeSlice <byte> sendProcessBuffer, NativeSlice <byte> recvProcessBuffer,
NativeSlice <byte> sharedProcessBuffer)
{
if (sharedProcessBuffer.Length >= ReliableUtility.SharedCapacityNeeded(m_ReliableParams) &&
(sendProcessBuffer.Length + recvProcessBuffer.Length) >= ReliableUtility.ProcessCapacityNeeded(m_ReliableParams) * 2)
{
ReliableUtility.InitializeContext(sharedProcessBuffer, sendProcessBuffer, recvProcessBuffer, m_ReliableParams);
}
}
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);
}
}
private static void InitializeConnection(byte *staticInstanceBuffer, int staticInstanceBufferLength,
byte *sendProcessBuffer, int sendProcessBufferLength, byte *recvProcessBuffer, int recvProcessBufferLength,
byte *sharedProcessBuffer, int sharedProcessBufferLength)
{
ReliableUtility.Parameters param;
UnsafeUtility.MemCpy(¶m, staticInstanceBuffer, UnsafeUtility.SizeOf <ReliableUtility.Parameters>());
if (sharedProcessBufferLength >= ReliableUtility.SharedCapacityNeeded(param) &&
(sendProcessBufferLength + recvProcessBufferLength) >= ReliableUtility.ProcessCapacityNeeded(param) * 2)
{
ReliableUtility.InitializeContext(sharedProcessBuffer, sharedProcessBufferLength, sendProcessBuffer, sendProcessBufferLength, recvProcessBuffer, recvProcessBufferLength, param);
}
}
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 static void Receive(ref NetworkPipelineContext ctx, ref InboundRecvBuffer inboundBuffer, ref NetworkPipelineStage.Requests requests)
{
// Request a send update to see if a queued packet needs to be resent later or if an ack packet should be sent
requests = NetworkPipelineStage.Requests.SendUpdate;
bool needsResume = false;
var header = default(ReliableUtility.PacketHeader);
var slice = default(InboundRecvBuffer);
ReliableUtility.Context * reliable = (ReliableUtility.Context *)ctx.internalProcessBuffer;
ReliableUtility.SharedContext *shared = (ReliableUtility.SharedContext *)ctx.internalSharedProcessBuffer;
shared->errorCode = 0;
if (reliable->Resume == ReliableUtility.NullEntry)
{
if (inboundBuffer.bufferLength <= 0)
{
inboundBuffer = slice;
return;
}
var inboundArray = NativeArrayUnsafeUtility.ConvertExistingDataToNativeArray <byte>(inboundBuffer.buffer, inboundBuffer.bufferLength, Allocator.Invalid);
#if ENABLE_UNITY_COLLECTIONS_CHECKS
var safetyHandle = AtomicSafetyHandle.GetTempMemoryHandle();
NativeArrayUnsafeUtility.SetAtomicSafetyHandle(ref inboundArray, safetyHandle);
#endif
var reader = new DataStreamReader(inboundArray);
reader.ReadBytes((byte *)&header, UnsafeUtility.SizeOf <ReliableUtility.PacketHeader>());
if (header.Type == (ushort)ReliableUtility.PacketType.Ack)
{
ReliableUtility.ReadAckPacket(ctx, header);
inboundBuffer = default;
return;
}
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);
}
if (needsResume)
{
requests |= NetworkPipelineStage.Requests.Resume;
}
inboundBuffer = slice;
}