internal bool ActuallySendPacket(byte[] data, int numBytes, NetEndPoint target, out bool connectionReset)
{
connectionReset = false;
IPAddress ba = default(IPAddress);
try
{
ba = NetUtility.GetCachedBroadcastAddress();
// TODO: refactor this check outta here
if (target.Address.Equals(ba))
{
// Some networks do not allow
// a global broadcast so we use the BroadcastAddress from the configuration
// this can be resolved to a local broadcast addresss e.g 192.168.x.255
targetCopy.Address = m_configuration.BroadcastAddress;
targetCopy.Port = target.Port;
m_socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, true);
}
else if (m_configuration.DualStack && m_configuration.LocalAddress.AddressFamily == AddressFamily.InterNetworkV6)
{
NetUtility.CopyEndpoint(target, targetCopy); //Maps to IPv6 for Dual Mode
}
int bytesSent = m_socket.SendTo(data, 0, numBytes, SocketFlags.None, targetCopy);
if (numBytes != bytesSent)
{
LogWarning("Failed to send the full " + numBytes + "; only " + bytesSent + " bytes sent in packet!");
}
// LogDebug("Sent " + numBytes + " bytes");
}
catch (SocketException sx)
{
if (sx.SocketErrorCode == SocketError.WouldBlock)
{
// send buffer full?
LogWarning("Socket threw exception; would block - send buffer full? Increase in NetPeerConfiguration");
return(false);
}
if (sx.SocketErrorCode == SocketError.ConnectionReset)
{
// connection reset by peer, aka connection forcibly closed aka "ICMP port unreachable"
connectionReset = true;
return(false);
}
LogError("Failed to send packet: " + sx);
}
catch (Exception ex)
{
LogError("Failed to send packet: " + ex);
}
finally
{
if (target.Address.Equals(ba))
{
m_socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, false);
}
}
return(true);
}
//
// Release - just send the packet straight away
//
internal void SendPacket(int numBytes, NetEndPoint target, int numMessages, out bool connectionReset)
{
#if USE_RELEASE_STATISTICS
m_statistics.PacketSent(numBytes, numMessages);
#endif
connectionReset = false;
IPAddress ba = default(IPAddress);
try
{
// TODO: refactor this check outta here
ba = NetUtility.GetCachedBroadcastAddress();
if (target.Address == ba)
{
m_socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, true);
}
int bytesSent = m_socket.SendTo(m_sendBuffer, 0, numBytes, SocketFlags.None, target);
if (numBytes != bytesSent)
{
LogWarning("Failed to send the full " + numBytes + "; only " + bytesSent + " bytes sent in packet!");
}
}
catch (SocketException sx)
{
if (sx.SocketErrorCode == SocketError.WouldBlock)
{
// send buffer full?
LogWarning("Socket threw exception; would block - send buffer full? Increase in NetPeerConfiguration");
return;
}
if (sx.SocketErrorCode == SocketError.ConnectionReset)
{
// connection reset by peer, aka connection forcibly closed aka "ICMP port unreachable"
connectionReset = true;
return;
}
LogError("Failed to send packet: " + sx);
}
catch (Exception ex)
{
LogError("Failed to send packet: " + ex);
}
finally
{
if (target.Address == ba)
{
m_socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, false);
}
}
return;
}