// Transfers AcceptArgs to another SocketAsyncEventArgs object from the pool, and begins to receive data.
private void ProcessAccept(SocketAsyncEventArgs e)
{
if (e.SocketError != SocketError.Success)
{
Logger.WriteStr("Error while processing accept.");
StartAccept(null); //start new Accept socket
return;
}
//TODO: deleteme
//StartAccept(null);
Logger.WriteStr("Client connection accepted. Processing Accept from client " + e.AcceptSocket.RemoteEndPoint.ToString());
// Get the socket for the accepted client connection and put it into the ReadEventArg object user token
SocketAsyncEventArgs readEventArgs = argsReadWritePool.Pop();
if (readEventArgs != null)
{
((HostAsyncUserToken)readEventArgs.UserToken).Socket = e.AcceptSocket;
readEventArgs.AcceptSocket = e.AcceptSocket;
e.AcceptSocket = null; // We'll reuse Accept SocketAsyncEventArgs object
// As soon as the client is connected, post a receive to the connection, to get client's identification info
StartReceive(readEventArgs);
}
else
{
Logger.WriteStr("There is no more SocketAsyncEventArgs available in r/w pool");
}
// Accept the next connection request. We'll reuse Accept SocketAsyncEventArgs object.
StartAccept(e);
}
// Transfers AcceptArgs to another SocketAsyncEventArgs object from the pool, and begins to receive data.
private void ProcessAccept(SocketAsyncEventArgs args)
{
if (args.SocketError != SocketError.Success)
{
Logger.WriteStr("Error while processing accept.");
StartAccept(null, args.UserToken as Action <HostCustomEventArgs>); //start new Accept socket
return;
}
Logger.WriteStr("Client connection accepted. Processing Accept from client " + args.AcceptSocket.RemoteEndPoint);
// Get Arg from the Pool, for recieving
SocketAsyncEventArgs readEventArgs = _argsReadWritePool.Pop();
if (readEventArgs != null)
{
// create user's token
var token = new HostAsyncUserToken();
readEventArgs.UserToken = token;
token.Callback = args.UserToken as Action <HostCustomEventArgs>;
// store this object in token for fast reusing
token.readEventArgs = readEventArgs;
// Get the socket for the accepted client connection and put it into the readEventArg object user token
token.Socket = args.AcceptSocket;
readEventArgs.AcceptSocket = args.AcceptSocket;
// Get another Arg from the Pool, for sending.
SocketAsyncEventArgs writeEventArgs = _argsReadWritePool.Pop();
if (writeEventArgs != null)
{
// point it's UserToken to the same token
writeEventArgs.UserToken = token;
writeEventArgs.AcceptSocket = args.AcceptSocket;
// Link writeEventArgs to readEventArgs in the token
token.writeEventArgs = writeEventArgs;
// Initialize agent's data/info holder
token.Agent = new Agent();
// Start timer that sends keep-alive messages
token.KeepAliveTimer = new KeepAliveTimer(token);
token.KeepAliveTimer.Elapsed += SendKeepAlive;
// As soon as the client is connected, post a receive to the connection, to get client's identification info
WaitForReceiveMessage(readEventArgs);
}
else
{
Logger.WriteStr("WARNING: There is no more SocketAsyncEventArgs available in write pool! Cannot continue. Close connection.");
CloseConnection(args);
}
}
else
{
Logger.WriteStr("WARNING: There is no more SocketAsyncEventArgs available in read pool! Cannot continue. Close connection.");
// increase maxNumberConnectedClients simaphore back because it has been decreased in StartAccept
_maxNumberConnectedClients.Release();
}
// Accept the next connection request. We'll reuse Accept SocketAsyncEventArgs object.
args.AcceptSocket = null;
StartAccept(args, args.UserToken as Action <HostCustomEventArgs>);
}
