134 lines
3.6 KiB
C++
134 lines
3.6 KiB
C++
/*
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* Copyright (C) 2018 dimercur
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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 General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __COMMONITOR_H__
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#define __COMMONITOR_H__
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#include "messages.h"
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#include <string>
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using namespace std;
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#define SERVER_PORT 5544
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/**
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* Class used for generating a server and communicating through it with monitor
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*
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* @brief Communication class with monitor (server)
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*
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*/
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class ComMonitor {
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public:
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/**
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* Constructor
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*/
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ComMonitor() {}
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/**
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* Destructor
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*/
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virtual ~ComMonitor() {}
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/**
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* Create a server and open a socket over TCP
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*
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* @param port Port used for communication
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* @return Socket number
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* @throw std::runtime_error if it fails
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*/
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int Open(int port);
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/**
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* Close socket and server
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*/
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void Close();
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/**
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* Wait for a client to connect
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* @return Client number
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* @throw std::runtime_error if it fails
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*/
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int AcceptClient();
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/**
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* Send a message to monitor
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*
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* @param msg Message to send to monitor
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* @attention Message given in parameter will be destroyed (delete) after being sent. No need for user to delete message after that.
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* @warning Write is not thread safe : check that multiple tasks can't access this method simultaneously
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*/
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void Write(Message *msg);
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/**
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* Function called at beginning of Write method
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* Use it to do some synchronization (call of mutex, for example)
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*/
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virtual void Write_Pre() {}
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/**
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* Function called at end of Write method
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* Use it to do some synchronization (release of mutex, for example)
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*/
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virtual void Write_Post() {}
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/**
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* Receive a message from monitor
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*
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* @return Message received from monitor
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* @attention Message provided is produced by the method. You must delete it when you are done using it
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* @warning Read is not thread safe : check that multiple tasks can't access this method simultaneously
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*/
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Message *Read();
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/**
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* Function called at beginning of Read method
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* Use it to do some synchronization (call of mutex, for example)
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*/
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virtual void Read_Pre() {}
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/**
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* Function called at end of Read method
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* Use it to do some synchronization (release of mutex, for example)
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*/
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virtual void Read_Post() {}
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protected:
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/**
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* Socket descriptor
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*/
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int socketFD = -1;
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/**
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* Socket descriptor
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*/
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int clientID = -1;
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/**
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* Method used internally to convert a message content to a string that can be sent over TCP
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* @param msg Message to be converted
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* @return A string, image of the message
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*/
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string MessageToString(Message *msg);
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/**
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* Method used internally to convert a string received over TCP to a message
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* @param s String containing message
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* @return A message, image of the string
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*/
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Message *StringToMessage(string &s);
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};
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#endif /* __COMMONITOR_H__ */
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