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97 lines
2.2 KiB
C++
97 lines
2.2 KiB
C++
// -*- C++ -*-
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/**
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* \file ServerSocket.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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* \author Jean-Marc Lasgouttes
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* \author João Luis M. Assirati
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef LYXSERVERSOCKET_H
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#define LYXSERVERSOCKET_H
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#include "support/FileName.h"
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#include <string>
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#include <map>
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#include <memory>
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namespace lyx {
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class LyXDataSocket;
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/** Sockets can be in two states: listening and connected.
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* Connected sockets are used to transfer data, and will therefore
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* be called Data Sockets. Listening sockets are used to create
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* Data Sockets when clients connect, and therefore will be called
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* Server Sockets.
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* This class encapsulates local (unix) server socket operations and
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* manages LyXDataSockets objects that are created when clients connect.
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*/
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class ServerSocket {
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public:
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///
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ServerSocket(support::FileName const &);
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///
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~ServerSocket();
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/// Address of the local socket
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std::string const address() const;
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/// To be called when there is activity in the server socket
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void serverCallback();
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/// To be called when there is activity in the data socket
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void dataCallback(int fd);
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private:
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///
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void writeln(std::string const &);
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/// File descriptor for the server socket
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int fd_;
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/// Stores the socket filename
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support::FileName address_;
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/// Maximum number of simultaneous clients
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enum {
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MAX_CLIENTS = 10
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};
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/// All connections
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std::map<int, std::shared_ptr<LyXDataSocket>> clients;
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};
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/** This class encapsulates data socket operations.
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* It provides read and write IO operations on the socket.
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*/
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class LyXDataSocket {
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public:
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///
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LyXDataSocket(int fd);
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///
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~LyXDataSocket();
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/// Connection status
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bool connected() const;
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/// Line buffered input from the socket
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bool readln(std::string &);
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/// Write the string + '\n' to the socket
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void writeln(std::string const &);
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private:
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/// File descriptor for the data socket
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int fd_;
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/// True if the connection is up
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bool connected_;
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/// buffer for input data
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std::string buffer_;
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};
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/// Implementation is in LyX.cpp
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extern ServerSocket & theServerSocket();
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} // namespace lyx
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#endif // LYXSERVERSOCKET_H
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