/// <summary>
/// Reads the specified number of bits into a preallocated array
/// </summary>
/// <param name="into">The destination array</param>
/// <param name="offset">The offset where to start writing in the destination array</param>
/// <param name="numberOfBits">The number of bits to read</param>
public void ReadBits(byte[] into, int offset, int numberOfBits)
{
NetException.Assert(m_bitLength - m_readPosition >= numberOfBits, c_readOverflowError);
NetException.Assert(offset + NetUtility.BytesToHoldBits(numberOfBits) <= into.Length);
int numberOfWholeBytes = numberOfBits / 8;
int extraBits = numberOfBits - (numberOfWholeBytes * 8);
NetBitWriter.ReadBytes(m_data, numberOfWholeBytes, m_readPosition, into, offset);
m_readPosition += (8 * numberOfWholeBytes);
if (extraBits > 0)
{
into[offset + numberOfWholeBytes] = ReadByte(extraBits);
}
return;
}
public UInt64 PeekUInt64(int numberOfBits)
{
NetException.Assert((numberOfBits > 0 && numberOfBits <= 64), "ReadUInt() can only read between 1 and 64 bits");
NetException.Assert(m_bitLength - m_readPosition >= numberOfBits, c_readOverflowError);
ulong retval;
if (numberOfBits <= 32)
{
retval = (ulong)NetBitWriter.ReadUInt32(m_data, numberOfBits, m_readPosition);
}
else
{
retval = NetBitWriter.ReadUInt32(m_data, 32, m_readPosition);
retval |= NetBitWriter.ReadUInt32(m_data, numberOfBits - 32, m_readPosition) << 32;
}
return(retval);
}
private void ExecuteSend(float now, NetOutgoingMessage message)
{
int seqNr = m_sendStart;
m_sendStart = (m_sendStart + 1) % NetConstants.NumSequenceNumbers;
m_connection.QueueSendMessage(message, seqNr);
int storeIndex = seqNr % m_windowSize;
NetException.Assert(m_storedMessages[storeIndex].Message == null);
m_storedMessages[storeIndex].NumSent++;
m_storedMessages[storeIndex].Message = message;
m_storedMessages[storeIndex].LastSent = now;
return;
}
/// <summary>
/// Send a message to a specific connection
/// </summary>
/// <param name="msg">The message to send</param>
/// <param name="recipient">The recipient connection</param>
/// <param name="method">How to deliver the message</param>
/// <param name="sequenceChannel">Sequence channel within the delivery method</param>
public NetSendResult SendMessage(NetOutgoingMessage msg, NetConnection recipient, NetDeliveryMethod method, int sequenceChannel)
{
if (msg == null)
{
throw new ArgumentNullException("msg");
}
if (recipient == null)
{
throw new ArgumentNullException("recipient");
}
if (sequenceChannel >= NetConstants.NetChannelsPerDeliveryMethod)
{
throw new ArgumentOutOfRangeException("sequenceChannel");
}
NetException.Assert(
((method != NetDeliveryMethod.Unreliable && method != NetDeliveryMethod.ReliableUnordered) ||
((method == NetDeliveryMethod.Unreliable || method == NetDeliveryMethod.ReliableUnordered) && sequenceChannel == 0)),
"Delivery method " + method + " cannot use sequence channels other than 0!"
);
NetException.Assert(method != NetDeliveryMethod.Unknown, "Bad delivery method!");
if (msg.m_isSent)
{
throw new NetException("This message has already been sent! Use NetPeer.SendMessage() to send to multiple recipients efficiently");
}
msg.m_isSent = true;
int len = NetConstants.UnfragmentedMessageHeaderSize + msg.LengthBytes; // headers + length, faster than calling msg.GetEncodedSize
if (len <= recipient.m_currentMTU)
{
Interlocked.Increment(ref msg.m_recyclingCount);
return(recipient.EnqueueMessage(msg, method, sequenceChannel));
}
else
{
// message must be fragmented!
SendFragmentedMessage(msg, new NetConnection[] { recipient }, method, sequenceChannel);
return(NetSendResult.Queued); // could be different for each connection; Queued is "most true"
}
}
private NetReceiverChannelBase CreateReceiverChannel(NetMessageType tp)
{
m_peer.VerifyNetworkThread();
// create receiver channel
NetReceiverChannelBase chan;
NetDeliveryMethod method = NetUtility.GetDeliveryMethod(tp);
switch (method)
{
case NetDeliveryMethod.Unreliable:
chan = new NetUnreliableUnorderedReceiver(this);
break;
case NetDeliveryMethod.ReliableOrdered:
chan = new NetReliableOrderedReceiver(this, NetConstants.ReliableOrderedWindowSize);
break;
case NetDeliveryMethod.UnreliableSequenced:
chan = new NetUnreliableSequencedReceiver(this);
break;
case NetDeliveryMethod.ReliableUnordered:
chan = new NetReliableUnorderedReceiver(this, NetConstants.ReliableOrderedWindowSize);
break;
case NetDeliveryMethod.ReliableSequenced:
chan = new NetReliableSequencedReceiver(this, NetConstants.ReliableSequencedWindowSize);
break;
default:
throw new NetException("Unhandled NetDeliveryMethod!");
}
int channelSlot = (int)tp - 1;
NetException.Assert(m_receiveChannels[channelSlot] == null);
m_receiveChannels[channelSlot] = chan;
return(chan);
}
/// <summary>
/// Reads a string written using Write(string)
/// </summary>
public string ReadString()
{
int byteLen = (int)ReadVariableUInt32();
if (byteLen == 0)
{
return(String.Empty);
}
NetException.Assert(m_bitLength - m_readPosition >= (byteLen * 8), c_readOverflowError);
if ((m_readPosition & 7) == 0)
{
// read directly
string retval = System.Text.Encoding.UTF8.GetString(m_data, m_readPosition >> 3, byteLen);
m_readPosition += (8 * byteLen);
return(retval);
}
byte[] bytes = ReadBytes(byteLen);
return(System.Text.Encoding.UTF8.GetString(bytes, 0, bytes.Length));
}
internal void Write(Int32 source, int numberOfBits)
{
NetException.Assert((numberOfBits > 0 && numberOfBits <= 32), "Write(int, numberOfBits) can only write between 1 and 32 bits");
InternalEnsureBufferSize(m_bitLength + numberOfBits);
if (numberOfBits != 32)
{
// make first bit sign
int signBit = 1 << (numberOfBits - 1);
if (source < 0)
{
source = (-source - 1) | signBit;
}
else
{
source &= (~signBit);
}
}
NetBitWriter.WriteUInt32((uint)source, numberOfBits, m_data, m_bitLength);
m_bitLength += numberOfBits;
}
/// <summary>
/// Sets or clears the bit/bool at the specified index
/// </summary>
public void Set(int bitIndex, bool value)
{
NetException.Assert(bitIndex >= 0 && bitIndex < m_capacity);
int idx = bitIndex / 32;
if (value)
{
if ((m_data[idx] & (1 << (bitIndex % 32))) == 0)
{
m_numBitsSet++;
}
m_data[idx] |= (1 << (bitIndex % 32));
}
else
{
if ((m_data[idx] & (1 << (bitIndex % 32))) != 0)
{
m_numBitsSet--;
}
m_data[idx] &= (~(1 << (bitIndex % 32)));
}
}
/// <summary>
/// Write a byte consisting of 1-8 bits to a buffer; assumes buffer is previously allocated
/// </summary>
public static void WriteByte(byte source, int numberOfBits, byte[] destination, int destBitOffset)
{
NetException.Assert(((numberOfBits >= 1) && (numberOfBits <= 8)), "Must write between 1 and 8 bits!");
// mask out unwanted bits in the source
byte isrc = (byte)((uint)source & ((~(uint)0) >> (8 - numberOfBits)));
int bytePtr = destBitOffset >> 3;
int localBitLen = (destBitOffset % 8);
if (localBitLen == 0)
{
destination[bytePtr] = (byte)isrc;
return;
}
//destination[bytePtr] &= (byte)(255 >> (8 - localBitLen)); // clear before writing
//destination[bytePtr] |= (byte)(isrc << localBitLen); // write first half
destination[bytePtr] = (byte)(
(uint)(destination[bytePtr] & (255 >> (8 - localBitLen))) |
(uint)(isrc << localBitLen)
);
// need write into next byte?
if (localBitLen + numberOfBits > 8)
{
//destination[bytePtr + 1] &= (byte)(255 << localBitLen); // clear before writing
//destination[bytePtr + 1] |= (byte)(isrc >> (8 - localBitLen)); // write second half
destination[bytePtr + 1] = (byte)(
(uint)(destination[bytePtr + 1] & (255 << localBitLen)) |
(uint)(isrc >> (8 - localBitLen))
);
}
return;
}
private void Heartbeat()
{
VerifyNetworkThread();
double dnow = NetTime.Now;
float now = (float)dnow;
double delta = dnow - m_lastHeartbeat;
int maxCHBpS = 1250 - m_connections.Count;
if (maxCHBpS < 250)
{
maxCHBpS = 250;
}
if (delta > (1.0 / (double)maxCHBpS)) // max connection heartbeats/second max
{
m_frameCounter++;
m_lastHeartbeat = dnow;
// do handshake heartbeats
if ((m_frameCounter % 3) == 0)
{
foreach (var kvp in m_handshakes)
{
NetConnection conn = kvp.Value as NetConnection;
#if DEBUG
// sanity check
if (kvp.Key != kvp.Key)
{
LogWarning("Sanity fail! Connection in handshake list under wrong key!");
}
#endif
conn.UnconnectedHeartbeat(now);
if (conn.m_status == NetConnectionStatus.Connected || conn.m_status == NetConnectionStatus.Disconnected)
{
#if DEBUG
// sanity check
if (conn.m_status == NetConnectionStatus.Disconnected && m_handshakes.ContainsKey(conn.RemoteEndpoint))
{
LogWarning("Sanity fail! Handshakes list contained disconnected connection!");
m_handshakes.Remove(conn.RemoteEndpoint);
}
#endif
break; // collection has been modified
}
}
}
#if DEBUG
SendDelayedPackets();
#endif
// do connection heartbeats
lock (m_connections)
{
foreach (NetConnection conn in m_connections)
{
conn.Heartbeat(now, m_frameCounter);
if (conn.m_status == NetConnectionStatus.Disconnected)
{
//
// remove connection
//
m_connections.Remove(conn);
m_connectionLookup.Remove(conn.RemoteEndpoint);
break; // can't continue iteration here
}
}
}
// send unsent unconnected messages
NetTuple <IPEndPoint, NetOutgoingMessage> unsent;
while (m_unsentUnconnectedMessages.TryDequeue(out unsent))
{
NetOutgoingMessage om = unsent.Item2;
#if DEBUG
if (om.m_messageType == NetMessageType.NatPunchMessage)
{
LogDebug("Sending Nat Punch Message to " + unsent.Item1.ToString());
}
#endif
bool connReset;
int len = om.Encode(m_sendBuffer, 0, 0);
SendPacket(len, unsent.Item1, 1, out connReset);
Interlocked.Decrement(ref om.m_recyclingCount);
if (om.m_recyclingCount <= 0)
{
Recycle(om);
}
}
}
//
// read from socket
//
if (m_socket == null)
{
return;
}
if (!m_socket.Poll(1000)) // wait up to 1 ms for data to arrive
{
return;
}
//if (m_socket == null || m_socket.Available < 1)
// return;
do
{
int bytesReceived = 0;
try
{
bytesReceived = m_socket.ReceiveFrom(m_receiveBuffer, 0, m_receiveBuffer.Length, ref m_senderRemote);
}
catch (SocketException sx)
{
if (sx.SocketErrorCode == SocketError.ConnectionReset)
{
// connection reset by peer, aka connection forcibly closed aka "ICMP port unreachable"
// we should shut down the connection; but m_senderRemote seemingly cannot be trusted, so which connection should we shut down?!
// So, what to do?
return;
}
LogWarning(sx.ToString());
return;
}
if (bytesReceived < NetConstants.HeaderByteSize)
{
return;
}
//LogVerbose("Received " + bytesReceived + " bytes");
IPEndPoint ipsender = (IPEndPoint)m_senderRemote;
if (ipsender.Port == 1900)
{
// UPnP response
try
{
string resp = System.Text.Encoding.UTF8.GetString(m_receiveBuffer, 0, bytesReceived);
if (resp.Contains("upnp:rootdevice"))
{
resp = resp.Substring(resp.ToLower().IndexOf("location:") + 9);
resp = resp.Substring(0, resp.IndexOf("\r")).Trim();
m_upnp.ExtractServiceUrl(resp);
return;
}
}
catch { }
}
NetConnection sender = null;
m_connectionLookup.TryGetValue(ipsender, out sender);
double receiveTime = NetTime.Now;
//
// parse packet into messages
//
int numMessages = 0;
int ptr = 0;
while ((bytesReceived - ptr) >= NetConstants.HeaderByteSize)
{
// decode header
// 8 bits - NetMessageType
// 1 bit - Fragment?
// 15 bits - Sequence number
// 16 bits - Payload length in bits
numMessages++;
NetMessageType tp = (NetMessageType)m_receiveBuffer[ptr++];
byte low = m_receiveBuffer[ptr++];
byte high = m_receiveBuffer[ptr++];
bool isFragment = ((low & 1) == 1);
ushort sequenceNumber = (ushort)((low >> 1) | (((int)high) << 7));
ushort payloadBitLength = (ushort)(m_receiveBuffer[ptr++] | (m_receiveBuffer[ptr++] << 8));
int payloadByteLength = NetUtility.BytesToHoldBits(payloadBitLength);
if (bytesReceived - ptr < payloadByteLength)
{
LogWarning("Malformed packet; stated payload length " + payloadByteLength + ", remaining bytes " + (bytesReceived - ptr));
return;
}
try
{
NetException.Assert(tp <NetMessageType.Unused1 || tp> NetMessageType.Unused29);
if (tp >= NetMessageType.LibraryError)
{
if (sender != null)
{
sender.ReceivedLibraryMessage(tp, ptr, payloadByteLength);
}
else
{
ReceivedUnconnectedLibraryMessage(receiveTime, ipsender, tp, ptr, payloadByteLength);
}
}
else
{
if (sender == null && !m_configuration.IsMessageTypeEnabled(NetIncomingMessageType.UnconnectedData))
{
return; // dropping unconnected message since it's not enabled
}
NetIncomingMessage msg = CreateIncomingMessage(NetIncomingMessageType.Data, payloadByteLength);
msg.m_isFragment = isFragment;
msg.m_receiveTime = receiveTime;
msg.m_sequenceNumber = sequenceNumber;
msg.m_receivedMessageType = tp;
msg.m_senderConnection = sender;
msg.m_senderEndpoint = ipsender;
msg.m_bitLength = payloadBitLength;
Buffer.BlockCopy(m_receiveBuffer, ptr, msg.m_data, 0, payloadByteLength);
if (sender != null)
{
if (tp == NetMessageType.Unconnected)
{
// We're connected; but we can still send unconnected messages to this peer
msg.m_incomingMessageType = NetIncomingMessageType.UnconnectedData;
ReleaseMessage(msg);
}
else
{
// connected application (non-library) message
sender.ReceivedMessage(msg);
}
}
else
{
// at this point we know the message type is enabled
// unconnected application (non-library) message
msg.m_incomingMessageType = NetIncomingMessageType.UnconnectedData;
ReleaseMessage(msg);
}
}
}
catch (Exception ex)
{
LogError("Packet parsing error: " + ex.Message + " from " + ipsender);
}
ptr += payloadByteLength;
}
m_statistics.PacketReceived(bytesReceived, numMessages);
if (sender != null)
{
sender.m_statistics.PacketReceived(bytesReceived, numMessages);
}
} while (m_socket.Available > 0);
}
private void HandleReleasedFragment(NetIncomingMessage im)
{
//
// read fragmentation header and combine fragments
//
int group;
int totalBits;
int chunkByteSize;
int chunkNumber;
int ptr = NetFragmentationHelper.ReadHeader(
im.m_data, 0,
out group,
out totalBits,
out chunkByteSize,
out chunkNumber
);
NetException.Assert(im.LengthBytes > ptr);
NetException.Assert(group > 0);
NetException.Assert(totalBits > 0);
NetException.Assert(chunkByteSize > 0);
int totalBytes = NetUtility.BytesToHoldBits((int)totalBits);
int totalNumChunks = totalBytes / chunkByteSize;
if (totalNumChunks * chunkByteSize < totalBytes)
{
totalNumChunks++;
}
NetException.Assert(chunkNumber < totalNumChunks);
if (chunkNumber >= totalNumChunks)
{
LogWarning("Index out of bounds for chunk " + chunkNumber + " (total chunks " + totalNumChunks + ")");
return;
}
Dictionary <int, ReceivedFragmentGroup> groups;
if (!m_receivedFragmentGroups.TryGetValue(im.SenderConnection, out groups))
{
groups = new Dictionary <int, ReceivedFragmentGroup>();
m_receivedFragmentGroups[im.SenderConnection] = groups;
}
ReceivedFragmentGroup info;
if (!groups.TryGetValue(group, out info))
{
info = new ReceivedFragmentGroup();
info.Data = new byte[totalBytes];
info.ReceivedChunks = new NetBitVector(totalNumChunks);
groups[group] = info;
}
info.ReceivedChunks[chunkNumber] = true;
info.LastReceived = (float)NetTime.Now;
// copy to data
int offset = (chunkNumber * chunkByteSize);
Buffer.BlockCopy(im.m_data, ptr, info.Data, offset, im.LengthBytes - ptr);
int cnt = info.ReceivedChunks.Count();
//LogVerbose("Found fragment #" + chunkNumber + " in group " + group + " offset " + offset + " of total bits " + totalBits + " (total chunks done " + cnt + ")");
LogVerbose("Received fragment " + chunkNumber + " of " + totalNumChunks + " (" + cnt + " chunks received)");
if (info.ReceivedChunks.Count() == totalNumChunks)
{
// Done! Transform this incoming message
im.m_data = info.Data;
im.m_bitLength = (int)totalBits;
im.m_isFragment = false;
LogVerbose("Fragment group #" + group + " fully received in " + totalNumChunks + " chunks (" + totalBits + " bits)");
ReleaseMessage(im);
}
else
{
// data has been copied; recycle this incoming message
Recycle(im);
}
return;
}
/// <summary>
/// Sets all bits/booleans to zero/false
/// </summary>
public void Clear()
{
Array.Clear(m_data, 0, m_data.Length);
m_numBitsSet = 0;
NetException.Assert(this.IsEmpty());
}
/// <summary>
/// Gets the bit/bool at the specified index
/// </summary>
public bool Get(int bitIndex)
{
NetException.Assert(bitIndex >= 0 && bitIndex < m_capacity);
return((m_data[bitIndex / 32] & (1 << (bitIndex % 32))) != 0);
}
// remoteWindowStart is remote expected sequence number; everything below this has arrived properly
// seqNr is the actual nr received
internal override void ReceiveAcknowledge(float now, int seqNr)
{
// late (dupe), on time or early ack?
int relate = NetUtility.RelativeSequenceNumber(seqNr, m_windowStart);
if (relate < 0)
{
//m_connection.m_peer.LogDebug("Received late/dupe ack for #" + seqNr);
return; // late/duplicate ack
}
if (relate == 0)
{
//m_connection.m_peer.LogDebug("Received right-on-time ack for #" + seqNr);
// ack arrived right on time
NetException.Assert(seqNr == m_windowStart);
m_receivedAcks[m_windowStart] = false;
DestoreMessage(m_windowStart % m_windowSize);
m_windowStart = (m_windowStart + 1) % NetConstants.NumSequenceNumbers;
// advance window if we already have early acks
while (m_receivedAcks.Get(m_windowStart))
{
//m_connection.m_peer.LogDebug("Using early ack for #" + m_windowStart + "...");
m_receivedAcks[m_windowStart] = false;
NetException.Assert(m_storedMessages[m_windowStart % m_windowSize].Message == null); // should already be destored
m_windowStart = (m_windowStart + 1) % NetConstants.NumSequenceNumbers;
//m_connection.m_peer.LogDebug("Advancing window to #" + m_windowStart);
}
return;
}
//
// early ack... (if it has been sent!)
//
// If it has been sent either the m_windowStart message was lost
// ... or the ack for that message was lost
//
//m_connection.m_peer.LogDebug("Received early ack for #" + seqNr);
int sendRelate = NetUtility.RelativeSequenceNumber(seqNr, m_sendStart);
if (sendRelate <= 0)
{
// yes, we've sent this message - it's an early (but valid) ack
if (m_receivedAcks[seqNr])
{
// we've already destored/been acked for this message
}
else
{
DestoreMessage(seqNr % m_windowSize);
m_receivedAcks[seqNr] = true;
}
}
else if (sendRelate > 0)
{
// uh... we haven't sent this message yet? Weird, dupe or error...
return;
}
// Ok, lets resend all missing acks
int rnr = seqNr;
do
{
rnr--;
if (rnr < 0)
{
rnr = NetConstants.NumSequenceNumbers - 1;
}
if (m_receivedAcks[rnr])
{
// m_connection.m_peer.LogDebug("Not resending #" + rnr + " (since we got ack)");
}
else
{
int slot = rnr % m_windowSize;
NetException.Assert(m_storedMessages[slot].Message != null);
if (m_storedMessages[slot].NumSent == 1)
{
// just sent once; resend immediately since we found gap in ack sequence
NetOutgoingMessage rmsg = m_storedMessages[slot].Message;
//m_connection.m_peer.LogVerbose("Resending #" + rnr + " (" + rmsg + ")");
if (now - m_storedMessages[slot].LastSent < (m_resendDelay * 0.35f))
{
// already resent recently
}
else
{
m_storedMessages[slot].LastSent = now;
m_storedMessages[slot].NumSent++;
m_connection.m_statistics.MessageResent(MessageResendReason.HoleInSequence);
m_connection.QueueSendMessage(rmsg, rnr);
}
}
}
} while (rnr != m_windowStart);
}
internal void Heartbeat(float now, uint frameCounter)
{
m_peer.VerifyNetworkThread();
NetException.Assert(m_status != NetConnectionStatus.InitiatedConnect && m_status != NetConnectionStatus.RespondedConnect);
if ((frameCounter % 5) == 0)
{
if (now > m_timeoutDeadline)
{
//
// connection timed out
//
m_peer.LogVerbose("Connection timed out at " + now + " deadline was " + m_timeoutDeadline);
ExecuteDisconnect("Connection timed out", true);
}
// send ping?
if (m_status == NetConnectionStatus.Connected)
{
if (now > m_sentPingTime + m_peer.m_configuration.m_pingInterval)
{
SendPing();
}
// handle expand mtu
MTUExpansionHeartbeat(now);
}
if (m_disconnectRequested)
{
ExecuteDisconnect(m_disconnectMessage, true);
return;
}
}
bool connectionReset; // TODO: handle connection reset
//
// Note: at this point m_sendBufferWritePtr and m_sendBufferNumMessages may be non-null; resends may already be queued up
//
byte[] sendBuffer = m_peer.m_sendBuffer;
int mtu = m_currentMTU;
if ((frameCounter % 3) == 0) // coalesce a few frames
{
//
// send ack messages
//
while (m_queuedAcks.Count > 0)
{
int acks = (mtu - (m_sendBufferWritePtr + 5)) / 3; // 3 bytes per actual ack
if (acks > m_queuedAcks.Count)
{
acks = m_queuedAcks.Count;
}
NetException.Assert(acks > 0);
m_sendBufferNumMessages++;
// write acks header
sendBuffer[m_sendBufferWritePtr++] = (byte)NetMessageType.Acknowledge;
sendBuffer[m_sendBufferWritePtr++] = 0; // no sequence number
sendBuffer[m_sendBufferWritePtr++] = 0; // no sequence number
int len = (acks * 3) * 8; // bits
sendBuffer[m_sendBufferWritePtr++] = (byte)len;
sendBuffer[m_sendBufferWritePtr++] = (byte)(len >> 8);
// write acks
for (int i = 0; i < acks; i++)
{
NetTuple <NetMessageType, int> tuple;
m_queuedAcks.TryDequeue(out tuple);
//m_peer.LogVerbose("Sending ack for " + tuple.Item1 + "#" + tuple.Item2);
sendBuffer[m_sendBufferWritePtr++] = (byte)tuple.Item1;
sendBuffer[m_sendBufferWritePtr++] = (byte)tuple.Item2;
sendBuffer[m_sendBufferWritePtr++] = (byte)(tuple.Item2 >> 8);
}
if (m_queuedAcks.Count > 0)
{
// send packet and go for another round of acks
NetException.Assert(m_sendBufferWritePtr > 0 && m_sendBufferNumMessages > 0);
m_peer.SendPacket(m_sendBufferWritePtr, m_remoteEndpoint, m_sendBufferNumMessages, out connectionReset);
m_statistics.PacketSent(m_sendBufferWritePtr, 1);
m_sendBufferWritePtr = 0;
m_sendBufferNumMessages = 0;
}
}
}
//
// send queued messages
//
for (int i = m_sendChannels.Length - 1; i >= 0; i--) // Reverse order so reliable messages are sent first
{
var channel = m_sendChannels[i];
NetException.Assert(m_sendBufferWritePtr < 1 || m_sendBufferNumMessages > 0);
if (channel != null)
{
channel.SendQueuedMessages(now);
}
NetException.Assert(m_sendBufferWritePtr < 1 || m_sendBufferNumMessages > 0);
}
//
// Put on wire data has been written to send buffer but not yet sent
//
if (m_sendBufferWritePtr > 0)
{
m_peer.VerifyNetworkThread();
NetException.Assert(m_sendBufferWritePtr > 0 && m_sendBufferNumMessages > 0);
m_peer.SendPacket(m_sendBufferWritePtr, m_remoteEndpoint, m_sendBufferNumMessages, out connectionReset);
m_statistics.PacketSent(m_sendBufferWritePtr, m_sendBufferNumMessages);
m_sendBufferWritePtr = 0;
m_sendBufferNumMessages = 0;
}
}
/// <summary>
/// Reads a signed integer stored in 1 to 64 bits, written using Write(Int64, Int32)
/// </summary>
public Int64 ReadInt64(int numberOfBits)
{
NetException.Assert(((numberOfBits > 0) && (numberOfBits <= 64)), "ReadInt64(bits) can only read between 1 and 64 bits");
return((long)ReadUInt64(numberOfBits));
}
private void SendCallBack(IAsyncResult res)
{
NetException.Assert(res.IsCompleted == true);
m_socket.EndSendTo(res);
}
