lyx_mirror/src/lyxsocket.h

93 lines
2.2 KiB
C
Raw Normal View History

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