/// <summary>
/// Datagram_CanSendMessage
/// </summary>
public bool CanSendMessage(qsocket_t sock)
{
if (sock.sendNext)
SendMessageNext(sock);
return sock.canSend;
}
// PrintStats(qsocket_t* s)
private void PrintStats(qsocket_t s)
{
Con.Print("canSend = {0:4} \n", s.canSend);
Con.Print("sendSeq = {0:4} ", s.sendSequence);
Con.Print("recvSeq = {0:4} \n", s.receiveSequence);
Con.Print("\n");
}
public int SendMessage(qsocket_t sock, MsgWriter data)
{
if (sock.driverdata == null)
{
return(-1);
}
qsocket_t sock2 = (qsocket_t)sock.driverdata;
if ((sock2.receiveMessageLength + data.Length + 4) > Net.NET_MAXMESSAGE)
{
Sys.Error("Loop_SendMessage: overflow\n");
}
// message type
int offset = sock2.receiveMessageLength;
sock2.receiveMessage[offset++] = 1;
// length
sock2.receiveMessage[offset++] = (byte)(data.Length & 0xff);
sock2.receiveMessage[offset++] = (byte)(data.Length >> 8);
// align
offset++;
// message
Buffer.BlockCopy(data.Data, 0, sock2.receiveMessage, offset, data.Length);
sock2.receiveMessageLength = IntAlign(sock2.receiveMessageLength + data.Length + 4);
sock.canSend = false;
return(1);
}
public int GetMessage(qsocket_t sock)
{
if (sock.receiveMessageLength == 0)
{
return(0);
}
int ret = sock.receiveMessage[0];
int length = sock.receiveMessage[1] + (sock.receiveMessage[2] << 8);
// alignment byte skipped here
Net.Message.Clear();
Net.Message.FillFrom(sock.receiveMessage, 4, length);
length = IntAlign(length + 4);
sock.receiveMessageLength -= length;
if (sock.receiveMessageLength > 0)
{
Array.Copy(sock.receiveMessage, length, sock.receiveMessage, 0, sock.receiveMessageLength);
}
if (sock.driverdata != null && ret == 1)
{
((qsocket_t)sock.driverdata).canSend = true;
}
return(ret);
}
public qsocket_t CheckNewConnections()
{
if (host.Time != _Next.time || _Next.op != VcrOp.VCR_OP_CONNECT)
{
sys.Error("VCR missmatch");
}
if (_Next.session == 0)
{
ReadNext();
return(null);
}
qsocket_t sock = net.NewSocket();
sock.driverdata = _Next.session;
byte[] buf = new byte[net.NET_NAMELEN];
host.VcrReader.Read(buf, 0, buf.Length);
sock.address = Encoding.ASCII.GetString(buf);
ReadNext();
return(sock);
}
/// <summary>
/// NET_CanSendMessage
/// Returns true or false if the given qsocket can currently accept a
/// message to be transmitted.
/// </summary>
public static bool CanSendMessage(qsocket_t sock)
{
if (sock == null)
{
return(false);
}
if (sock.disconnected)
{
return(false);
}
SetNetTime();
bool r = _Drivers[sock.driver].CanSendMessage(sock);
if (_IsRecording)
{
_VcrSendMessage.time = Host.Time;
_VcrSendMessage.op = VcrOp.VCR_OP_CANSENDMESSAGE;
_VcrSendMessage.session = 1; // (long)sock; Uze: todo: do something?
_VcrSendMessage.ret = r ? 1 : 0;
byte[] buf = Sys.StructureToBytes(ref _VcrSendMessage);
Host.VcrWriter.Write(buf, 0, buf.Length);
}
return(r);
}
/// <summary>
/// NET_SendMessage
/// Try to send a complete length+message unit over the reliable stream.
/// returns 0 if the message cannot be delivered reliably, but the connection
/// is still considered valid
/// returns 1 if the message was sent properly
/// returns -1 if the connection died
/// </summary>
public Int32 SendMessage(qsocket_t sock, MessageWriter data)
{
if (sock == null)
{
return(-1);
}
if (sock.disconnected)
{
Host.Console.Print("NET_SendMessage: disconnected socket\n");
return(-1);
}
SetNetTime();
var r = _Drivers[sock.driver].SendMessage(sock, data);
if (r == 1 && sock.driver != 0)
{
_MessagesSent++;
}
if (_IsRecording)
{
_VcrSendMessage.time = Host.Time;
_VcrSendMessage.op = VcrOp.VCR_OP_SENDMESSAGE;
_VcrSendMessage.session = 1; // (long)sock; Uze: todo: do something?
_VcrSendMessage.ret = r;
var buf = Utilities.StructureToBytes(ref _VcrSendMessage);
Host.VcrWriter.Write(buf, 0, buf.Length);
}
return(r);
}
/// <summary>
/// NET_SendUnreliableMessage
/// returns 0 if the message connot be delivered reliably, but the connection
/// is still considered valid
/// returns 1 if the message was sent properly
/// returns -1 if the connection died
/// </summary>
public static int SendUnreliableMessage(qsocket_t sock, MsgWriter data)
{
if (sock == null)
{
return(-1);
}
if (sock.disconnected)
{
Con.Print("NET_SendMessage: disconnected socket\n");
return(-1);
}
SetNetTime();
int r = _Drivers[sock.driver].SendUnreliableMessage(sock, data);
if (r == 1 && sock.driver != 0)
{
_UnreliableMessagesSent++;
}
if (_IsRecording)
{
_VcrSendMessage.time = Host.Time;
_VcrSendMessage.op = VcrOp.VCR_OP_SENDMESSAGE;
_VcrSendMessage.session = 1;// (long)sock; Uze todo: ???????
_VcrSendMessage.ret = r;
byte[] buf = Sys.StructureToBytes(ref _VcrSendMessage);
Host.VcrWriter.Write(buf);
}
return(r);
}
public int SendUnreliableMessage(qsocket_t sock, MsgWriter data)
{
if (sock.driverdata == null)
{
return(-1);
}
qsocket_t sock2 = (qsocket_t)sock.driverdata;
if ((sock2.receiveMessageLength + data.Length + sizeof(byte) + sizeof(short)) > Net.NET_MAXMESSAGE)
{
return(0);
}
int offset = sock2.receiveMessageLength;
// message type
sock2.receiveMessage[offset++] = 2;
// length
sock2.receiveMessage[offset++] = (byte)(data.Length & 0xff);
sock2.receiveMessage[offset++] = (byte)(data.Length >> 8);
// align
offset++;
// message
Buffer.BlockCopy(data.Data, 0, sock2.receiveMessage, offset, data.Length);
sock2.receiveMessageLength = IntAlign(sock2.receiveMessageLength + data.Length + 4);
return(1);
}
/// <summary>
/// SV_CheckForNewClients
/// </summary>
public static void CheckForNewClients()
{
//
// check for new connections
//
while (true)
{
qsocket_t ret = net.CheckNewConnections();
if (ret == null)
{
break;
}
//
// init a new client structure
//
int i;
for (i = 0; i < svs.maxclients; i++)
{
if (!svs.clients[i].active)
{
break;
}
}
if (i == svs.maxclients)
{
sys.Error("Host_CheckForNewClients: no free clients");
}
svs.clients[i].netconnection = ret;
ConnectClient(i);
net.ActiveConnections++;
}
}
// NET_Stats_f
private void Stats_f(CommandMessage msg)
{
if (msg.Parameters == null || msg.Parameters.Length == 0)
{
Host.Console.Print("unreliable messages sent = %i\n", Host.Network.UnreliableMessagesSent);
Host.Console.Print("unreliable messages recv = %i\n", Host.Network.UnreliableMessagesReceived);
Host.Console.Print("reliable messages sent = %i\n", Host.Network.MessagesSent);
Host.Console.Print("reliable messages received = %i\n", Host.Network.MessagesReceived);
Host.Console.Print("packetsSent = %i\n", packetsSent);
Host.Console.Print("packetsReSent = %i\n", packetsReSent);
Host.Console.Print("packetsReceived = %i\n", packetsReceived);
Host.Console.Print("receivedDuplicateCount = %i\n", receivedDuplicateCount);
Host.Console.Print("shortPacketCount = %i\n", shortPacketCount);
Host.Console.Print("droppedDatagrams = %i\n", droppedDatagrams);
}
else if (msg.Parameters[0] == "*")
{
foreach (var s in Host.Network.ActiveSockets)
{
PrintStats(s);
}
foreach (var s in Host.Network.FreeSockets)
{
PrintStats(s);
}
}
else
{
qsocket_t sock = null;
var cmdAddr = msg.Parameters[0];
foreach (var s in Host.Network.ActiveSockets)
{
if (Utilities.SameText(s.address, cmdAddr))
{
sock = s;
break;
}
}
if (sock == null)
{
foreach (var s in Host.Network.FreeSockets)
{
if (Utilities.SameText(s.address, cmdAddr))
{
sock = s;
break;
}
}
}
if (sock == null)
{
return;
}
PrintStats(sock);
}
}
// NET_Stats_f
private void Stats_f()
{
if (cmd.Argc == 1)
{
Con.Print("unreliable messages sent = %i\n", net.UnreliableMessagesSent);
Con.Print("unreliable messages recv = %i\n", net.UnreliableMessagesReceived);
Con.Print("reliable messages sent = %i\n", net.MessagesSent);
Con.Print("reliable messages received = %i\n", net.MessagesReceived);
Con.Print("packetsSent = %i\n", packetsSent);
Con.Print("packetsReSent = %i\n", packetsReSent);
Con.Print("packetsReceived = %i\n", packetsReceived);
Con.Print("receivedDuplicateCount = %i\n", receivedDuplicateCount);
Con.Print("shortPacketCount = %i\n", shortPacketCount);
Con.Print("droppedDatagrams = %i\n", droppedDatagrams);
}
else if (cmd.Argv(1) == "*")
{
foreach (qsocket_t s in net.ActiveSockets)
{
PrintStats(s);
}
foreach (qsocket_t s in net.FreeSockets)
{
PrintStats(s);
}
}
else
{
qsocket_t sock = null;
string cmdAddr = cmd.Argv(1);
foreach (qsocket_t s in net.ActiveSockets)
{
if (common.SameText(s.address, cmdAddr))
{
sock = s;
break;
}
}
if (sock == null)
{
foreach (qsocket_t s in net.FreeSockets)
{
if (common.SameText(s.address, cmdAddr))
{
sock = s;
break;
}
}
}
if (sock == null)
{
return;
}
PrintStats(sock);
}
}
public bool CanSendMessage(qsocket_t sock)
{
if (sock.driverdata == null)
{
return(false);
}
return(sock.canSend);
}
public bool CanSendMessage(qsocket_t sock)
{
if (Host.Time != _Next.time || _Next.op != VcrOp. VCR_OP_CANSENDMESSAGE || _Next.session != SocketToSession(sock))
Sys.Error("VCR missmatch");
int ret = Host.VcrReader.ReadInt32();
ReadNext();
return ret != 0;
}
/// <summary>
/// NET_FreeQSocket
/// </summary>
public static void FreeSocket(qsocket_t sock)
{
// remove it from active list
if (!_ActiveSockets.Remove(sock))
{
Sys.Error("NET_FreeQSocket: not active\n");
}
// add it to free list
_FreeSockets.Add(sock);
sock.disconnected = true;
}
public void Close(qsocket_t sock)
{
if (sock.driverdata != null)
((qsocket_t)sock.driverdata).driverdata = null;
sock.ClearBuffers();
sock.canSend = true;
if (sock == _Client)
_Client = null;
else
_Server = null;
}
public bool CanSendMessage(qsocket_t sock)
{
if (host.Time != _Next.time || _Next.op != VcrOp.VCR_OP_CANSENDMESSAGE || _Next.session != SocketToSession(sock))
{
sys.Error("VCR missmatch");
}
int ret = host.VcrReader.ReadInt32();
ReadNext();
return(ret != 0);
}
public int SendMessage(qsocket_t sock, MsgWriter data)
{
if (host.Time != _Next.time || _Next.op != VcrOp.VCR_OP_SENDMESSAGE || _Next.session != SocketToSession(sock))
{
sys.Error("VCR missmatch");
}
int ret = host.VcrReader.ReadInt32();
ReadNext();
return(ret);
}
public Boolean CanSendMessage(qsocket_t sock)
{
if (Host.Time != _Next.time || _Next.op != VcrOp.VCR_OP_CANSENDMESSAGE || _Next.session != SocketToSession(sock))
{
Utilities.Error("VCR missmatch");
}
var ret = Host.VcrReader.ReadInt32();
ReadNext();
return(ret != 0);
}
public Int32 SendMessage(qsocket_t sock, MessageWriter data)
{
if (Host.Time != _Next.time || _Next.op != VcrOp.VCR_OP_SENDMESSAGE || _Next.session != SocketToSession(sock))
{
Utilities.Error("VCR missmatch");
}
var ret = Host.VcrReader.ReadInt32();
ReadNext();
return(ret);
}
private qsocket_t SearchActiveSockets(String cmdAddr)
{
qsocket_t sock = null;
foreach (var s in Host.Network.ActiveSockets)
{
if (Utilities.SameText(s.address, cmdAddr))
{
sock = s;
break;
}
}
return(sock);
}
/// <summary>
/// NET_CheckNewConnections
/// </summary>
/// <returns></returns>
public static qsocket_t CheckNewConnections()
{
SetNetTime();
for (_DriverLevel = 0; _DriverLevel < _Drivers.Length; _DriverLevel++)
{
if (!_Drivers[_DriverLevel].IsInitialized)
{
continue;
}
if (_DriverLevel > 0 && !_IsListening)
{
continue;
}
qsocket_t ret = Net.Driver.CheckNewConnections();
if (ret != null)
{
if (_IsRecording)
{
_VcrConnect.time = Host.Time;
_VcrConnect.op = VcrOp.VCR_OP_CONNECT;
_VcrConnect.session = 1; // (long)ret; // Uze: todo: make it work on 64bit systems
byte[] buf = Sys.StructureToBytes(ref _VcrConnect);
Host.VcrWriter.Write(buf, 0, buf.Length);
buf = Encoding.ASCII.GetBytes(ret.address);
int count = Math.Min(buf.Length, NET_NAMELEN);
int extra = NET_NAMELEN - count;
Host.VcrWriter.Write(buf, 0, count);
for (int i = 0; i < extra; i++)
{
Host.VcrWriter.Write((byte)0);
}
}
return(ret);
}
}
if (_IsRecording)
{
_VcrConnect.time = Host.Time;
_VcrConnect.op = VcrOp.VCR_OP_CONNECT;
_VcrConnect.session = 0;
byte[] buf = Sys.StructureToBytes(ref _VcrConnect);
Host.VcrWriter.Write(buf, 0, buf.Length);
}
return(null);
}
/// <summary>
/// Datagram_Connect
/// </summary>
public qsocket_t Connect(string host)
{
qsocket_t ret = null;
for (net.LanDriverLevel = 0; net.LanDriverLevel < net.LanDrivers.Length; net.LanDriverLevel++)
{
if (net.LanDrivers[net.LanDriverLevel].IsInitialized)
{
ret = InternalConnect(host);
if (ret != null)
{
break;
}
}
}
return(ret);
}
/// <summary>
/// Datagram_CheckNewConnections
/// </summary>
public qsocket_t CheckNewConnections()
{
qsocket_t ret = null;
for (net.LanDriverLevel = 0; net.LanDriverLevel < net.LanDrivers.Length; net.LanDriverLevel++)
{
if (net.LanDriver.IsInitialized)
{
ret = InternalCheckNewConnections();
if (ret != null)
{
break;
}
}
}
return(ret);
}
/// <summary>
/// Datagram_CheckNewConnections
/// </summary>
public qsocket_t CheckNewConnections( )
{
qsocket_t ret = null;
for (Host.Network.LanDriverLevel = 0; Host.Network.LanDriverLevel < Host.Network.LanDrivers.Length; Host.Network.LanDriverLevel++)
{
if (Host.Network.LanDriver.IsInitialised)
{
ret = InternalCheckNewConnections( );
if (ret != null)
{
break;
}
}
}
return(ret);
}
/// <summary>
/// Datagram_Connect
/// </summary>
public qsocket_t Connect(String host)
{
qsocket_t ret = null;
for (Host.Network.LanDriverLevel = 0; Host.Network.LanDriverLevel < Host.Network.LanDrivers.Length; Host.Network.LanDriverLevel++)
{
if (Host.Network.LanDrivers[Host.Network.LanDriverLevel].IsInitialised)
{
ret = InternalConnect(host);
if (ret != null)
{
break;
}
}
}
return(ret);
}
public void Close(qsocket_t sock)
{
if (sock.driverdata != null)
{
((qsocket_t)sock.driverdata).driverdata = null;
}
sock.ClearBuffers();
sock.canSend = true;
if (sock == _Client)
{
_Client = null;
}
else
{
_Server = null;
}
}
private void PrintStatsForSocket(CommandMessage msg)
{
qsocket_t sock = null;
var cmdAddr = msg.Parameters[0];
sock = SearchActiveSockets(cmdAddr);
if (sock == null)
{
sock = SearchFreeSockets(cmdAddr);
}
if (sock == null)
{
return;
}
PrintStats(sock);
}
/// <summary>
/// NET_Close
/// </summary>
public static void Close(qsocket_t sock)
{
if (sock == null)
{
return;
}
if (sock.disconnected)
{
return;
}
SetNetTime();
// call the driver_Close function
_Drivers[sock.driver].Close(sock);
FreeSocket(sock);
}
public void Clear()
{
this.active = false;
this.spawned = false;
this.dropasap = false;
this.privileged = false;
this.sendsignon = false;
this.last_message = 0;
this.netconnection = null;
this.cmd.Clear();
this.wishdir = Vector3.Zero;
this.message.Clear();
this.edict = null;
this.name = null;
this.colors = 0;
Array.Clear(this.ping_times, 0, this.ping_times.Length);
this.num_pings = 0;
Array.Clear(this.spawn_parms, 0, this.spawn_parms.Length);
this.old_frags = 0;
}
/// <summary>
/// SV_ConnectClient
/// Initializes a client_t for a new net connection. This will only be called
/// once for a player each game, not once for each level change.
/// </summary>
private static void ConnectClient(int clientnum)
{
client_t client = svs.clients[clientnum];
Con.DPrint("Client {0} connected\n", client.netconnection.address);
int edictnum = clientnum + 1;
edict_t ent = EdictNum(edictnum);
// set up the client_t
qsocket_t netconnection = client.netconnection;
float[] spawn_parms = new float[NUM_SPAWN_PARMS];
if (sv.loadgame)
{
Array.Copy(client.spawn_parms, spawn_parms, spawn_parms.Length);
}
client.Clear();
client.netconnection = netconnection;
client.name = "unconnected";
client.active = true;
client.spawned = false;
client.edict = ent;
client.message.AllowOverflow = true; // we can catch it
client.privileged = false;
if (sv.loadgame)
{
Array.Copy(spawn_parms, client.spawn_parms, spawn_parms.Length);
}
else
{
// call the progs to get default spawn parms for the new client
progs.Execute(progs.GlobalStruct.SetNewParms);
AssignGlobalSpawnparams(client);
}
SendServerInfo(client);
}
public qsocket_t Connect(string host)
{
if (host != "local")
{
return(null);
}
_LocalConnectPending = true;
if (_Client == null)
{
_Client = Net.NewSocket();
if (_Client == null)
{
Con.Print("Loop_Connect: no qsocket available\n");
return(null);
}
_Client.address = "localhost";
}
_Client.ClearBuffers();
_Client.canSend = true;
if (_Server == null)
{
_Server = Net.NewSocket();
if (_Server == null)
{
Con.Print("Loop_Connect: no qsocket available\n");
return(null);
}
_Server.address = "LOCAL";
}
_Server.ClearBuffers();
_Server.canSend = true;
_Client.driverdata = _Server;
_Server.driverdata = _Client;
return(_Client);
}
/// <summary>
/// NET_NewQSocket
/// Called by drivers when a new communications endpoint is required
/// The sequence and buffer fields will be filled in properly
/// </summary>
public static qsocket_t NewSocket()
{
if (_FreeSockets.Count == 0)
{
return(null);
}
if (Net.ActiveConnections >= Server.svs.maxclients)
{
return(null);
}
// get one from free list
int i = _FreeSockets.Count - 1;
qsocket_t sock = _FreeSockets[i];
_FreeSockets.RemoveAt(i);
// add it to active list
_ActiveSockets.Add(sock);
sock.disconnected = false;
sock.connecttime = _Time;
sock.address = "UNSET ADDRESS";
sock.driver = _DriverLevel;
sock.socket = null;
sock.driverdata = null;
sock.canSend = true;
sock.sendNext = false;
sock.lastMessageTime = _Time;
sock.ackSequence = 0;
sock.sendSequence = 0;
sock.unreliableSendSequence = 0;
sock.sendMessageLength = 0;
sock.receiveSequence = 0;
sock.unreliableReceiveSequence = 0;
sock.receiveMessageLength = 0;
return(sock);
}
public int GetMessage(qsocket_t sock)
{
if (Host.Time != _Next.time || _Next.op != VcrOp.VCR_OP_GETMESSAGE || _Next.session != SocketToSession(sock))
Sys.Error("VCR missmatch");
int ret = Host.VcrReader.ReadInt32();
if (ret != 1)
{
ReadNext();
return ret;
}
int length = Host.VcrReader.ReadInt32();
Net.Message.FillFrom(Host.VcrReader.BaseStream, length);
ReadNext();
return 1;
}
public int SendMessage(qsocket_t sock, MsgWriter data)
{
if (Host.Time != _Next.time || _Next.op != VcrOp.VCR_OP_SENDMESSAGE || _Next.session != SocketToSession(sock))
Sys.Error("VCR missmatch");
int ret = Host.VcrReader.ReadInt32();
ReadNext();
return ret;
}
public long SocketToSession(qsocket_t sock)
{
return (long)sock.driverdata;
}
public int SendUnreliableMessage(qsocket_t sock, MsgWriter data)
{
throw new NotImplementedException();
}
public int GetMessage(qsocket_t sock)
{
if (sock.receiveMessageLength == 0)
return 0;
int ret = sock.receiveMessage[0];
int length = sock.receiveMessage[1] + (sock.receiveMessage[2] << 8);
// alignment byte skipped here
Net.Message.Clear();
Net.Message.FillFrom(sock.receiveMessage, 4, length);
length = IntAlign(length + 4);
sock.receiveMessageLength -= length;
if (sock.receiveMessageLength > 0)
Array.Copy(sock.receiveMessage, length, sock.receiveMessage, 0, sock.receiveMessageLength);
if (sock.driverdata != null && ret == 1)
((qsocket_t)sock.driverdata).canSend = true;
return ret;
}
public int SendUnreliableMessage(qsocket_t sock, MsgWriter data)
{
if (sock.driverdata == null)
return -1;
qsocket_t sock2 = (qsocket_t)sock.driverdata;
if ((sock2.receiveMessageLength + data.Length + sizeof(byte) + sizeof(short)) > Net.NET_MAXMESSAGE)
return 0;
int offset = sock2.receiveMessageLength;
// message type
sock2.receiveMessage[offset++] = 2;
// length
sock2.receiveMessage[offset++] = (byte)(data.Length & 0xff);
sock2.receiveMessage[offset++] = (byte)(data.Length >> 8);
// align
offset++;
// message
Buffer.BlockCopy(data.Data, 0, sock2.receiveMessage, offset, data.Length);
sock2.receiveMessageLength = IntAlign(sock2.receiveMessageLength + data.Length + 4);
return 1;
}
public qsocket_t Connect(string host)
{
if (host != "local")
return null;
_LocalConnectPending = true;
if (_Client == null)
{
_Client = Net.NewSocket();
if (_Client == null)
{
Con.Print("Loop_Connect: no qsocket available\n");
return null;
}
_Client.address = "localhost";
}
_Client.ClearBuffers();
_Client.canSend = true;
if (_Server == null)
{
_Server = Net.NewSocket();
if (_Server == null)
{
Con.Print("Loop_Connect: no qsocket available\n");
return null;
}
_Server.address = "LOCAL";
}
_Server.ClearBuffers();
_Server.canSend = true;
_Client.driverdata = _Server;
_Server.driverdata = _Client;
return _Client;
}
/// <summary>
/// Datagram_Close
/// </summary>
public void Close(qsocket_t sock)
{
sock.LanDriver.CloseSocket(sock.socket);
}
public int GetMessage(qsocket_t sock)
{
if (!sock.canSend)
if ((Net.Time - sock.lastSendTime) > 1.0)
ReSendMessage(sock);
int ret = 0;
EndPoint readaddr = new IPEndPoint(IPAddress.Any, 0);
while (true)
{
int length = sock.Read(_PacketBuffer, Net.NET_DATAGRAMSIZE, ref readaddr);
if (length == 0)
break;
if (length == -1)
{
Con.Print("Read error\n");
return -1;
}
if (sock.LanDriver.AddrCompare(readaddr, sock.addr) != 0)
{
#if DEBUG
Con.DPrint("Forged packet received\n");
Con.DPrint("Expected: {0}\n", StrAddr(sock.addr));
Con.DPrint("Received: {0}\n", StrAddr(readaddr));
#endif
continue;
}
if (length < Net.NET_HEADERSIZE)
{
shortPacketCount++;
continue;
}
PacketHeader header = Sys.BytesToStructure<PacketHeader>(_PacketBuffer, 0);
length = Common.BigLong(header.length);
int flags = length & (~NetFlags.NETFLAG_LENGTH_MASK);
length &= NetFlags.NETFLAG_LENGTH_MASK;
if ((flags & NetFlags.NETFLAG_CTL) != 0)
continue;
uint sequence = (uint)Common.BigLong(header.sequence);
packetsReceived++;
if ((flags & NetFlags.NETFLAG_UNRELIABLE) != 0)
{
if (sequence < sock.unreliableReceiveSequence)
{
Con.DPrint("Got a stale datagram\n");
ret = 0;
break;
}
if (sequence != sock.unreliableReceiveSequence)
{
int count = (int)(sequence - sock.unreliableReceiveSequence);
droppedDatagrams += count;
Con.DPrint("Dropped {0} datagram(s)\n", count);
}
sock.unreliableReceiveSequence = sequence + 1;
length -= Net.NET_HEADERSIZE;
Net.Message.FillFrom(_PacketBuffer, PacketHeader.SizeInBytes, length);
ret = 2;
break;
}
if ((flags & NetFlags.NETFLAG_ACK) != 0)
{
if (sequence != (sock.sendSequence - 1))
{
Con.DPrint("Stale ACK received\n");
continue;
}
if (sequence == sock.ackSequence)
{
sock.ackSequence++;
if (sock.ackSequence != sock.sendSequence)
Con.DPrint("ack sequencing error\n");
}
else
{
Con.DPrint("Duplicate ACK received\n");
continue;
}
sock.sendMessageLength -= QDef.MAX_DATAGRAM;
if (sock.sendMessageLength > 0)
{
Buffer.BlockCopy(sock.sendMessage, QDef.MAX_DATAGRAM, sock.sendMessage, 0, sock.sendMessageLength);
sock.sendNext = true;
}
else
{
sock.sendMessageLength = 0;
sock.canSend = true;
}
continue;
}
if ((flags & NetFlags.NETFLAG_DATA) != 0)
{
header.length = Common.BigLong(Net.NET_HEADERSIZE | NetFlags.NETFLAG_ACK);
header.sequence = Common.BigLong((int)sequence);
Sys.StructureToBytes(ref header, _PacketBuffer, 0);
sock.Write(_PacketBuffer, Net.NET_HEADERSIZE, readaddr);
if (sequence != sock.receiveSequence)
{
receivedDuplicateCount++;
continue;
}
sock.receiveSequence++;
length -= Net.NET_HEADERSIZE;
if ((flags & NetFlags.NETFLAG_EOM) != 0)
{
Net.Message.Clear();
Net.Message.FillFrom(sock.receiveMessage, 0, sock.receiveMessageLength);
Net.Message.AppendFrom(_PacketBuffer, PacketHeader.SizeInBytes, length);
sock.receiveMessageLength = 0;
ret = 1;
break;
}
Buffer.BlockCopy(_PacketBuffer, PacketHeader.SizeInBytes, sock.receiveMessage, sock.receiveMessageLength, length);
sock.receiveMessageLength += length;
continue;
}
}
if (sock.sendNext)
SendMessageNext(sock);
return ret;
}
public bool CanSendUnreliableMessage(qsocket_t sock)
{
return true;
}
public bool CanSendMessage(qsocket_t sock)
{
if (sock.driverdata == null)
return false;
return sock.canSend;
}
/// <summary>
/// NET_SendUnreliableMessage
/// returns 0 if the message connot be delivered reliably, but the connection
/// is still considered valid
/// returns 1 if the message was sent properly
/// returns -1 if the connection died
/// </summary>
public static int SendUnreliableMessage(qsocket_t sock, MsgWriter data)
{
if (sock == null)
return -1;
if (sock.disconnected)
{
Con.Print("NET_SendMessage: disconnected socket\n");
return -1;
}
SetNetTime();
int r = _Drivers[sock.driver].SendUnreliableMessage(sock, data);
if (r == 1 && sock.driver != 0)
_UnreliableMessagesSent++;
if (_IsRecording)
{
_VcrSendMessage.time = Host.Time;
_VcrSendMessage.op = VcrOp.VCR_OP_SENDMESSAGE;
_VcrSendMessage.session = 1;// (long)sock; Uze todo: ???????
_VcrSendMessage.ret = r;
byte[] buf = Sys.StructureToBytes(ref _VcrSendMessage);
Host.VcrWriter.Write(buf);
}
return r;
}
public void Close(qsocket_t sock)
{
// nothing to do
}
/// <summary>
/// NET_GetMessage
/// returns data in net_message sizebuf
/// returns 0 if no data is waiting
/// returns 1 if a message was received
/// returns 2 if an unreliable message was received
/// returns -1 if the connection died
/// </summary>
public static int GetMessage(qsocket_t sock)
{
//int ret;
if (sock == null)
return -1;
if (sock.disconnected)
{
Con.Print("NET_GetMessage: disconnected socket\n");
return -1;
}
SetNetTime();
int ret = _Drivers[sock.driver].GetMessage(sock);
// see if this connection has timed out
if (ret == 0 && sock.driver != 0)
{
if (_Time - sock.lastMessageTime > _MessageTimeout.Value)
{
Close(sock);
return -1;
}
}
if (ret > 0)
{
if (sock.driver != 0)
{
sock.lastMessageTime = _Time;
if (ret == 1)
_MessagesReceived++;
else if (ret == 2)
_UnreliableMessagesReceived++;
}
if (_IsRecording)
{
_VcrGetMessage.time = Host.Time;
_VcrGetMessage.op = VcrOp.VCR_OP_GETMESSAGE;
_VcrGetMessage.session = 1;// (long)sock; Uze todo: write somethisng meaningful
_VcrGetMessage.ret = ret;
byte[] buf = Sys.StructureToBytes(ref _VcrGetMessage);
Host.VcrWriter.Write(buf, 0, buf.Length);
Host.VcrWriter.Write(Net.Message.Length);
Host.VcrWriter.Write(Net.Message.Data, 0, Net.Message.Length);
}
}
else
{
if (_IsRecording)
{
_VcrGetMessage.time = Host.Time;
_VcrGetMessage.op = VcrOp.VCR_OP_GETMESSAGE;
_VcrGetMessage.session = 1; // (long)sock; Uze todo: fix this
_VcrGetMessage.ret = ret;
byte[] buf = Sys.StructureToBytes(ref _VcrGetMessage);
Host.VcrWriter.Write(buf, 0, buf.Length);
}
}
return ret;
}
public int SendMessage(qsocket_t sock, MsgWriter data)
{
if (sock.driverdata == null)
return -1;
qsocket_t sock2 = (qsocket_t)sock.driverdata;
if ((sock2.receiveMessageLength + data.Length + 4) > Net.NET_MAXMESSAGE)
Sys.Error("Loop_SendMessage: overflow\n");
// message type
int offset = sock2.receiveMessageLength;
sock2.receiveMessage[offset++] = 1;
// length
sock2.receiveMessage[offset++] = (byte)(data.Length & 0xff);
sock2.receiveMessage[offset++] = (byte)(data.Length >> 8);
// align
offset++;
// message
Buffer.BlockCopy(data.Data, 0, sock2.receiveMessage, offset, data.Length);
sock2.receiveMessageLength = IntAlign(sock2.receiveMessageLength + data.Length + 4);
sock.canSend = false;
return 1;
}
/// <summary>
/// NET_Close
/// </summary>
public static void Close(qsocket_t sock)
{
if (sock == null)
return;
if (sock.disconnected)
return;
SetNetTime();
// call the driver_Close function
_Drivers[sock.driver].Close(sock);
FreeSocket(sock);
}
/// <summary>
/// NET_FreeQSocket
/// </summary>
public static void FreeSocket(qsocket_t sock)
{
// remove it from active list
if (!_ActiveSockets.Remove(sock))
Sys.Error("NET_FreeQSocket: not active\n");
// add it to free list
_FreeSockets.Add(sock);
sock.disconnected = true;
}
public void Clear()
{
this.active = false;
this.spawned = false;
this.dropasap = false;
this.privileged = false;
this.sendsignon = false;
this.last_message = 0;
this.netconnection = null;
this.cmd.Clear();
this.wishdir = Vector3.Zero;
this.message.Clear();
this.edict = null;
this.name = null;
this.colors = 0;
Array.Clear(this.ping_times, 0, this.ping_times.Length);
this.num_pings = 0;
Array.Clear(this.spawn_parms, 0, this.spawn_parms.Length);
this.old_frags = 0;
}
/// <summary>
/// NET_CanSendMessage
/// Returns true or false if the given qsocket can currently accept a
/// message to be transmitted.
/// </summary>
public static bool CanSendMessage(qsocket_t sock)
{
if (sock == null)
return false;
if (sock.disconnected)
return false;
SetNetTime();
bool r = _Drivers[sock.driver].CanSendMessage(sock);
if (_IsRecording)
{
_VcrSendMessage.time = Host.Time;
_VcrSendMessage.op = VcrOp.VCR_OP_CANSENDMESSAGE;
_VcrSendMessage.session = 1; // (long)sock; Uze: todo: do something?
_VcrSendMessage.ret = r ? 1 : 0;
byte[] buf = Sys.StructureToBytes(ref _VcrSendMessage);
Host.VcrWriter.Write(buf, 0, buf.Length);
}
return r;
}