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/*
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Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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/** \file
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TCP Socket header file
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*/
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#ifndef TCPSOCKET_H
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#define TCPSOCKET_H
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#include "core/net.h"
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#include "core/host.h"
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//Essentially it is a safe interface to NetTcpSocket
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///TCP Socket error codes
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enum TCPSocketErr
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{
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__TCPSOCKET_MIN = -0xFFFF,
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TCPSOCKET_SETUP, ///<TCPSocket not properly configured
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TCPSOCKET_TIMEOUT, ///<Connection timed out
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TCPSOCKET_IF, ///<Interface has problems, does not exist or is not initialized
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TCPSOCKET_MEM, ///<Not enough mem
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TCPSOCKET_INUSE, ///<Interface / Port is in use
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TCPSOCKET_EMPTY, ///<Connections queue is empty
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TCPSOCKET_RST, ///<Connection was reset by remote host
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//...
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TCPSOCKET_OK = 0 ///<Success
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};
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///TCP Socket Events
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enum TCPSocketEvent
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{
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TCPSOCKET_CONNECTED, ///<Connected to host
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TCPSOCKET_ACCEPT, ///<Client is connected, must call accept() to get a new Socket
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TCPSOCKET_READABLE, ///<Data in buf
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TCPSOCKET_WRITEABLE, ///<Can write data to buf
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TCPSOCKET_CONTIMEOUT, ///<Connection timed out
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TCPSOCKET_CONRST, ///<Connection was reset by remote host
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TCPSOCKET_CONABRT, ///<Connection was aborted
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TCPSOCKET_ERROR, ///<Unknown error
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TCPSOCKET_DISCONNECTED ///<Disconnected
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};
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class NetTcpSocket;
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enum NetTcpSocketEvent;
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///This is a simple TCP Socket class
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/**
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This class exposes an API to deal with TCP Sockets
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*/
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class TCPSocket
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{
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public:
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///Creates a new socket
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TCPSocket();
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protected:
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TCPSocket(NetTcpSocket* pNetTcpSocket);
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public:
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///Closes if needed and destroys the socket
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~TCPSocket(); //close()
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///Binds the socket to (local) host
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TCPSocketErr bind(const Host& me);
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///Starts listening
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TCPSocketErr listen();
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///Connects socket to host
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TCPSocketErr connect(const Host& host);
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///Accepts connection from client and gets connected socket
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TCPSocketErr accept(Host* pClient, TCPSocket** ppNewTcpSocket);
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///Sends data
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/*
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@return a negative error code or the number of bytes transmitted
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*/
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int /*if < 0 : TCPSocketErr*/ send(const char* buf, int len);
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///Receives data
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/*
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@return a negative error code or the number of bytes received
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*/
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int /*if < 0 : TCPSocketErr*/ recv(char* buf, int len);
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/* TODO NTH : printf / scanf helpers that call send/recv */
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///Closes socket
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TCPSocketErr close();
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//Callbacks
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///Setups callback
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/**
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@param pMethod : callback function
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*/
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void setOnEvent( void (*pMethod)(TCPSocketEvent) );
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class CDummy;
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///Setups callback
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/**
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@param pItem : instance of class on which to execute the callback method
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@param pMethod : callback method
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*/
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template<class T>
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void setOnEvent( T* pItem, void (T::*pMethod)(TCPSocketEvent) )
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{
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m_pCbItem = (CDummy*) pItem;
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m_pCbMeth = (void (CDummy::*)(TCPSocketEvent)) pMethod;
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}
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///Disables callback
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void resetOnEvent();
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protected:
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void onNetTcpSocketEvent(NetTcpSocketEvent e);
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TCPSocketErr checkInst();
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private:
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NetTcpSocket* m_pNetTcpSocket;
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CDummy* m_pCbItem;
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void (CDummy::*m_pCbMeth)(TCPSocketEvent);
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void (*m_pCb)(TCPSocketEvent);
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};
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#endif
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bruno LARNAUDIE