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105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_TCP_SOCK_H
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#define NL_TCP_SOCK_H
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#include "sock.h"
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namespace NLNET {
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/**
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* CTcpSock: Reliable socket via TCP.
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* See base class CSock.
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*
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* When to set No Delay mode on ?
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* Set TCP_NODELAY (call setNoDelay(true)) *only* if you have to send small buffers that need to
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* be sent *immediately*. It should only be set for applications that send frequent small bursts
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* of information without getting an immediate response, where timely delivery of data is
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* required (the canonical example is mouse movements). Setting TCP_NODELAY on increases
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* the network traffic (more overhead).
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* In the normal behavior of CSock, TCP_NODELAY is off i.e. the Nagle buffering algorithm is enabled.
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*
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* \author Olivier Cado
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* \author Nevrax France
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* \date 2000-2001
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*/
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class CTcpSock : public CSock
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{
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public:
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/// @name Socket setup
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//@{
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/**
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* Constructor.
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* \param logging Disable logging if the server socket object is used by the logging system, to avoid infinite recursion
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*/
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CTcpSock( bool logging = true );
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/// Construct a CTcpSock object using an already connected socket descriptor and its associated remote address
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CTcpSock( SOCKET sock, const CInetAddress& remoteaddr );
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/** Connection. You can reconnect a socket after being disconnected.
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* This method does not return a boolean, otherwise a programmer could ignore the result and no
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* exception would be thrown if connection fails :
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* - If addr is not valid, an exception ESocket is thrown
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* - If connect() fails for another reason, an exception ESocketConnectionFailed is thrown
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*/
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virtual void connect( const CInetAddress& addr );
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/** Sets a custom TCP Window size (SO_RCVBUF and SO_SNDBUF).
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* You must close the socket is necessary, before calling this method.
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*
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* See http://www.ncsa.uiuc.edu/People/vwelch/net_perf/tcp_windows.html
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*/
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void connectWithCustomWindowSize( const CInetAddress& addr, int windowsize );
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/// Returns the TCP Window Size for the current socket
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uint32 getWindowSize();
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/** Sets/unsets SO_KEEPALIVE (true by default).
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*/
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void setKeepAlive( bool keepAlive);
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/** Sets/unsets TCP_NODELAY (by default, it is off, i.e. the Nagle buffering algorithm is enabled).
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* You must call this method *after* connect().
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*/
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virtual void setNoDelay( bool value );
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/// Active disconnection for download way only (partial shutdown)
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void shutdownReceiving();
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/// Active disconnection for upload way only (partial shutdown)
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void shutdownSending();
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/// Active disconnection (shutdown) (mutexed). connected() becomes false.
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virtual void disconnect();
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//@}
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};
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} // NLNET
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#endif // NL_TCP_SOCK_H
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/* End of tcp_sock.h */
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