/// <summary>
/// Initiate an asynchronous receive operation on a buffer.
/// </summary>
/// <param name="Buffer">Supplies the buffer to receive from.</param>
private void InitiateReceive(SocketRecvBuffer Buffer)
{
//
// If shutdown is in process, then prevent new receive operations
// from being initiated and wake the main thread if the last
// pending receive has been drained.
//
if (QuitRequested)
{
if (PendingBuffers == 0)
QuitEvent.Set();
return;
}
IncrementPendingBuffers();
try
{
EndPoint RecvEndPoint = (EndPoint)Buffer.Sender;
IAsyncResult Result = Buffer.SocketDescriptor.Socket.BeginReceiveFrom(
Buffer.Buffer,
0,
Buffer.Buffer.Length,
SocketFlags.None,
ref RecvEndPoint,
RecvCompletionCallback,
Buffer);
}
catch (Exception e)
{
DecrementPendingBuffers();
Logger.Log(LogLevel.Error, "NWMasterServer.InitiateReceive(): BeginReceiveFrom failed: Exception: {0}", e);
Stop();
return;
}
}
/// <summary>
/// Set up a SocketInfo descriptor for a socket and bind it to a
/// local endpoint.
/// </summary>
/// <param name="MasterServer">Supplies the associated master
/// server object.</param>
/// <param name="BindAddress">Supplies the bind address.</param>
/// <param name="BindPort">Supplies the bind port, else 0 if there
/// is to be no specific local bind port.</param>
/// <param name="SocketUse">Supplies the usage type of the
/// socket.</param>
/// <param name="OnRecvSocketDatagram">Supplies the high level
/// socket receive message callback for the socket.</param>
public SocketInfo(NWMasterServer MasterServer, IPAddress BindAddress, int BindPort, SocketUse SocketUse, OnRecvSocketDatagramDelegate OnRecvSocketDatagram)
{
this.MasterServer = MasterServer;
this.SocketUse = SocketUse;
this.OnRecvSocketDatagram = OnRecvSocketDatagram;
for (int i = 0; i < BUFFER_COUNT; i += 1)
{
SocketRecvBuffer Buffer = new SocketRecvBuffer();
Buffers[i] = Buffer;
Buffer.Buffer = new byte[MAX_FRAME_SIZE];
Buffer.Sender = new IPEndPoint(0, 0);
Buffer.SocketDescriptor = this;
}
Socket.Blocking = false;
Socket.Bind(new IPEndPoint(BindAddress, BindPort));
Socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.PacketInformation, true);
}
