public override ChanneledPacket HandleIncomingMessagePoll(byte[] buffer, int length, out bool hasMore)
{
ReliableSequencedPacket packet = new ReliableSequencedPacket();
packet.Read(buffer, length);
_receiveSequencer.Push(packet);
// Set the ack
if (_sendSequencer.HasMessage(packet.AckSequence) && _sendSequencer.Peek(packet.AckSequence).ExplicitResponse != ExplicitResponseState.Ack)
{
packet.ExplicitResponse = ExplicitResponseState.Ack;
OnMessageAck(packet.AckSequence);
}
for (ushort i = packet.AckSequence; _sendSequencer.HasMessage(i) && _sendSequencer.Peek(i).ExplicitResponse == ExplicitResponseState.Ack; i++)
{
_lowestAckedMessage = i;
}
if (_receiveSequencer.HasMessage((ushort)(_lastReceivedSequenceNumber + 1)))
{
hasMore = _receiveSequencer.HasMessage((ushort)(_lastReceivedSequenceNumber + 2));
return(_receiveSequencer.Peek(++_lastReceivedSequenceNumber));
}
else
{
hasMore = false;
return(null);
}
}
public override ChanneledPacket CreateOutgoingMessage(byte[] payload, int offset, int length)
{
ReliableSequencedPacket message = new ReliableSequencedPacket(ChannelId, ++_lastOutboundSequenceNumber, _lastReceivedSequenceNumber, payload, offset, length);
_sendSequencer.Push(message);
return(message);
}
public void TestReliableSequencedChannelReceiveOutOfSequence()
{
ReliableSequencedChannel sender = new ReliableSequencedChannel(0);
ReliableSequencedChannel receiver = new ReliableSequencedChannel(0);
RemotePeer firstPeer;
ChanneledPacket firstPacket;
{
// Create first packet with sequence 1
firstPeer = new RemotePeer();// (new IPEndPoint(IPAddress.Any, 5670));
ulong sessionId = (ulong)0;
firstPeer.ChallengeResult = sessionId;
byte[] payload = new byte[0];
firstPacket = sender.CreateOutgoingMessage(payload, 0, payload.Length);
}
{
Random random = new Random(0);
foreach (int i in Enumerable.Range(1, 100).OrderBy(x => random.Next()))
{
RemotePeer fakePeer = new RemotePeer(); // (new IPEndPoint(IPAddress.Any, 5670));
ulong sessionId = (ulong)i;
fakePeer.ChallengeResult = sessionId;
byte[] payload = new byte[random.Next(0, 1024)];
random.NextBytes(payload);
ChanneledPacket sent = sender.CreateOutgoingMessage(payload, 0, payload.Length);
byte[] buffer = new byte[5000];
int oSize = sent.Write(buffer, fakePeer);
ReliableSequencedPacket incPacket = (ReliableSequencedPacket)receiver.HandleIncomingMessagePoll(buffer, oSize, out bool hasMore);
Assert.IsNull(incPacket);
}
}
{
byte[] buffer = new byte[5000];
int oSize = firstPacket.Write(buffer, firstPeer);
ReliableSequencedPacket incPacket = (ReliableSequencedPacket)receiver.HandleIncomingMessagePoll(buffer, oSize, out bool hasMore);
Assert.NotNull(incPacket);
Assert.IsTrue(incPacket.Payload.Length == 0);
Assert.IsTrue(hasMore);
}
{
Random random = new Random(0);
foreach (int i in Enumerable.Range(1, 100).OrderBy(x => random.Next()))
{
ulong sessionId = (ulong)i;
byte[] payload = new byte[random.Next(0, 1024)];
random.NextBytes(payload);
ReliableSequencedPacket incPacket = (ReliableSequencedPacket)receiver.HandlePoll();
Assert.NotNull(incPacket);
CollectionAssert.AreEqual(incPacket.Payload, payload);
}
}
}
public void TestReliableSequencedChannelReceiveInSequence()
{
ReliableSequencedChannel sender = new ReliableSequencedChannel(0);
ReliableSequencedChannel receiver = new ReliableSequencedChannel(0);
Random random = new Random(0);
for (int i = 0; i < 100000; i++)
{
RemotePeer fakePeer = new RemotePeer();// new IPEndPoint(IPAddress.Any, 5670));
ulong sessionId = RandomUtils.GetULong(false);
fakePeer.ChallengeResult = sessionId;
int payLength = random.Next(0, 1024);
byte[] payload = new byte[payLength];
random.NextBytes(payload);
ChanneledPacket sent = sender.CreateOutgoingMessage(payload, 0, payload.Length);
byte[] buffer = new byte[5000];
int oSize = sent.Write(buffer, fakePeer);
ReliableSequencedPacket incPacket = (ReliableSequencedPacket)receiver.HandleIncomingMessagePoll(buffer, oSize, out bool hasMore);
Assert.IsNotNull(incPacket, "it:" + i);
Assert.AreEqual(payLength, incPacket.Payload.Length);
CollectionAssert.AreEqual(payload, incPacket.Payload);
}
}
