internal void StartTransport(FunapiTransport transport)
{
if (transport == null)
return;
DebugUtils.Log("Starting {0} transport.", transport.Protocol);
lock (state_lock_)
{
if (state_ == State.kUnknown)
{
Start();
return;
}
}
transport.Start();
}
private void StopTransport(FunapiTransport transport)
{
if (transport == null)
return;
DebugUtils.Log("Stopping {0} transport.", transport.Protocol);
StopPingTimer(transport);
transport.Stop();
}
//---------------------------------------------------------------------
// FunapiTransport-related functions
//---------------------------------------------------------------------
public void AttachTransport(FunapiTransport transport)
{
DebugUtils.Assert(transport != null);
lock (transports_lock_)
{
if (transports_.ContainsKey(transport.Protocol))
{
StringBuilder strlog = new StringBuilder();
strlog.AppendFormat("AttachTransport - transport of '{0}' type already exists.", transport.Protocol);
strlog.Append(" You should call DetachTransport first.");
DebugUtils.LogWarning(strlog.ToString());
return;
}
// Callback functions
transport.ConnectTimeoutCallback += new TransportEventHandler(OnConnectTimeout);
transport.StartedInternalCallback += new TransportEventHandler(OnTransportStarted);
transport.StoppedCallback += new TransportEventHandler(OnTransportStopped);
transport.ConnectFailureCallback += new TransportEventHandler(OnTransportConnectFailure);
transport.DisconnectedCallback += new TransportEventHandler(OnTransportDisconnected);
transport.ReceivedCallback += new TransportReceivedHandler(OnTransportReceived);
transport.MessageFailureCallback += new TransportMessageHandler(OnTransportFailure);
transport.ProtobufHelper = serializer_;
transports_[transport.Protocol] = transport;
if (default_protocol_ == TransportProtocol.kDefault)
{
SetDefaultProtocol(transport.Protocol);
}
if (Started)
{
StartTransport(transport);
}
DebugUtils.Log("{0} transport attached.", transport.Protocol);
}
}
private void StartPingTimer(FunapiTransport transport)
{
if (transport.Protocol != TransportProtocol.kTcp)
return;
string timer_id = string.Format("{0}_ping", transport.str_protocol);
timer_.AddTimer(timer_id, transport.PingIntervalSeconds, true, OnPingTimerEvent, transport.Protocol);
transport.PingWaitTime = 0f;
DebugUtils.Log("Start ping - interval seconds: {0}, timeout seconds: {1}",
transport.PingIntervalSeconds, transport.PingTimeoutSeconds);
}
private void StopPingTimer(FunapiTransport transport)
{
if (transport.Protocol != TransportProtocol.kTcp)
return;
transport.PingTime = 0;
string timer_id = string.Format("{0}_ping", transport.str_protocol);
if (timer_.ContainTimer(timer_id))
timer_.KillTimer(timer_id);
}
private void SendPingMessage(FunapiTransport transport)
{
long timestamp = DateTime.Now.Ticks;
// Send response
if (transport.Encoding == FunEncoding.kJson)
{
object msg = transport.JsonHelper.Deserialize("{}");
transport.JsonHelper.SetStringField(msg, kMsgTypeBodyField, kClientPingMessageType);
transport.JsonHelper.SetStringField(msg, kSessionIdBodyField, session_id_);
transport.JsonHelper.SetIntegerField(msg, kPingTimestampField, timestamp);
transport.SendMessage(new FunapiMessage(transport.Protocol, kClientPingMessageType, msg));
}
else if (transport.Encoding == FunEncoding.kProtobuf)
{
FunPingMessage ping = new FunPingMessage();
ping.timestamp = timestamp;
FunMessage msg = CreateFunMessage(ping, MessageType.cs_ping);
msg.msgtype = kClientPingMessageType;
msg.sid = session_id_;
transport.SendMessage(new FunapiMessage(transport.Protocol, kClientPingMessageType, msg));
}
transport.PingWaitTime += transport.PingIntervalSeconds;
DebugUtils.DebugLog("Send {0} ping - timestamp: {1}", transport.str_protocol, timestamp);
}
private void SetTransportStarted(FunapiTransport transport, bool send_unsent = true)
{
if (transport == null)
return;
transport.OnStarted();
if (send_unsent && unsent_queue_.Count > 0)
{
SendUnsentMessages();
}
if (transport.EnablePing && transport.PingIntervalSeconds > 0)
{
StartPingTimer(transport);
}
}
private void OnServerPingMessage(FunapiTransport transport, object body)
{
if (transport == null)
{
DebugUtils.Log("OnServerPingMessage - transport is null.");
return;
}
// Send response
if (transport.Encoding == FunEncoding.kJson)
{
transport.JsonHelper.SetStringField(body, kMsgTypeBodyField, kServerPingMessageType);
if (session_id_.Length > 0)
transport.JsonHelper.SetStringField(body, kSessionIdBodyField, session_id_);
transport.SendMessage(new FunapiMessage(transport.Protocol,
kServerPingMessageType,
transport.JsonHelper.Clone(body)));
}
else if (transport.Encoding == FunEncoding.kProtobuf)
{
FunMessage msg = body as FunMessage;
FunPingMessage obj = (FunPingMessage)GetMessage(msg, MessageType.cs_ping);
if (obj == null)
return;
FunPingMessage ping = new FunPingMessage();
ping.timestamp = obj.timestamp;
if (obj.data.Length > 0) {
ping.data = new byte[obj.data.Length];
Buffer.BlockCopy(ping.data, 0, obj.data, 0, obj.data.Length);
}
FunMessage send_msg = CreateFunMessage(ping, MessageType.cs_ping);
send_msg.msgtype = msg.msgtype;
send_msg.sid = session_id_;
transport.SendMessage(new FunapiMessage(transport.Protocol, kServerPingMessageType, send_msg));
}
}
private void SendAck(FunapiTransport transport, UInt32 ack)
{
DebugUtils.Assert(session_reliability_);
if (transport == null)
{
DebugUtils.Log("SendAck - transport is null.");
return;
}
if (state_ == State.kStopped)
return;
DebugUtils.DebugLog("{0} send ack message - ack:{1}", transport.Protocol, ack);
if (transport.Encoding == FunEncoding.kJson)
{
object ack_msg = transport.JsonHelper.Deserialize("{}");
transport.JsonHelper.SetStringField(ack_msg, kSessionIdBodyField, session_id_);
transport.JsonHelper.SetIntegerField(ack_msg, kAckNumberField, ack);
transport.SendMessage(new FunapiMessage(transport.Protocol, "", ack_msg));
}
else if (transport.Encoding == FunEncoding.kProtobuf)
{
FunMessage ack_msg = new FunMessage();
ack_msg.sid = session_id_;
ack_msg.ack = ack;
transport.SendMessage(new FunapiMessage(transport.Protocol, "", ack_msg));
}
}
private bool OnSeqReceived(FunapiTransport transport, UInt32 seq)
{
if (first_receiving_)
{
first_receiving_ = false;
}
else
{
UInt32 seq_interval = seq - seq_recvd_;
if (seq_interval < 1 && Math.Abs(seq_interval) < kStableSequenceInterval)
{
DebugUtils.Log("Received previous sequence number {0}. Skipping message.", seq);
SendAck(transport, seq_recvd_ + 1);
return false;
}
else if (seq_interval != 1)
{
DebugUtils.LogWarning("Received wrong sequence number {0}. {1} expected.",
seq, seq_recvd_ + 1);
StopTransport(transport);
return false;
}
}
seq_recvd_ = seq;
SendAck(transport, seq_recvd_ + 1);
return true;
}
private void OnClientPingMessage(FunapiTransport transport, object body)
{
if (transport == null)
{
DebugUtils.Log("OnClientPingMessage - transport is null.");
return;
}
long timestamp = 0;
if (transport.Encoding == FunEncoding.kJson)
{
if (transport.JsonHelper.HasField(body, kPingTimestampField))
{
timestamp = (long)transport.JsonHelper.GetIntegerField(body, kPingTimestampField);
}
}
else if (transport.Encoding == FunEncoding.kProtobuf)
{
FunMessage msg = body as FunMessage;
object obj = GetMessage(msg, MessageType.cs_ping);
if (obj == null)
return;
FunPingMessage ping = obj as FunPingMessage;
timestamp = ping.timestamp;
}
if (transport.PingWaitTime > 0)
transport.PingWaitTime -= transport.PingIntervalSeconds;
transport.PingTime = (int)((DateTime.Now.Ticks - timestamp) / 10000);
DebugUtils.DebugLog("Receive {0} ping - timestamp:{1} time={2} ms",
transport.str_protocol, timestamp, transport.PingTime);
}
private void OnAckReceived(FunapiTransport transport, UInt32 ack)
{
DebugUtils.Assert(session_reliability_);
if (transport == null)
{
DebugUtils.LogError("OnAckReceived - transport is null.");
return;
}
while (send_queue_.Count > 0)
{
UInt32 seq;
FunapiMessage last_msg = send_queue_.Peek();
if (transport.Encoding == FunEncoding.kJson)
{
seq = (UInt32)transport.JsonHelper.GetIntegerField(last_msg.message, kSeqNumberField);
}
else if (transport.Encoding == FunEncoding.kProtobuf)
{
seq = (last_msg.message as FunMessage).seq;
}
else
{
DebugUtils.Assert(false);
seq = 0;
}
if (SeqLess(ack, seq))
{
send_queue_.Dequeue();
}
else
{
break;
}
}
if (transport.state == FunapiTransport.State.kWaitForAck)
{
foreach (FunapiMessage msg in send_queue_)
{
if (transport.Encoding == FunEncoding.kJson)
{
UInt32 seq = (UInt32)transport.JsonHelper.GetIntegerField(msg.message, kSeqNumberField);
DebugUtils.Assert(seq == ack || SeqLess(seq, ack));
transport.SendMessage(msg);
}
else if (transport.Encoding == FunEncoding.kProtobuf)
{
UInt32 seq = (msg.message as FunMessage).seq;
DebugUtils.Assert(seq == ack || SeqLess (seq, ack));
transport.SendMessage(msg);
}
else
{
DebugUtils.Assert(false);
}
}
SetTransportStarted(transport);
}
}
private void StartPingTimer(FunapiTransport transport)
{
if (transport.Protocol != TransportProtocol.kTcp)
return;
string timer_id = string.Format("{0}_ping", transport.str_protocol);
timer_.AddTimer(timer_id, ping_interval_, true, OnPingTimerEvent, transport.Protocol);
transport.PingWaitTime = 0f;
}
public FunapiNetwork(FunapiTransport transport, bool session_reliability,
SessionInitHandler on_session_initiated, SessionCloseHandler on_session_closed)
: this(session_reliability)
{
OnSessionInitiated += new SessionInitHandler(on_session_initiated);
OnSessionClosed += new SessionCloseHandler(on_session_closed);
AttachTransport(transport);
SetDefaultProtocol(transport.Protocol);
}