server.hxx

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/*
Copyright (C) 2006 by Intra2net AG - Gerd v. Egidy

The software in this package is distributed under the GNU General
Public License version 2 (with a special exception described below).

A copy of GNU General Public License (GPL) is included in this distribution,
in the file COPYING.GPL.

As a special exception, if other files instantiate templates or use macros
or inline functions from this file, or you compile this file and link it
with other works to produce a work based on this file, this file
does not by itself cause the resulting work to be covered
by the GNU General Public License.

However the source code for this file must still be made available
in accordance with section (3) of the GNU General Public License.

This exception does not invalidate any other reasons why a work based
on this file might be covered by the GNU General Public License.
*/
#ifndef __LIBT2N_SERVER
#define __LIBT2N_SERVER

#include <iostream>
#include <string>
#include <map>
#include <vector>
#include <list>

#include <boost/function.hpp>

#include "connection.hxx"
#include "types.hxx"

namespace libt2n
{

class server;

class server_connection : public connection
{
    friend class server;

    private:
        int timeout;
        int last_action_time;
        unsigned int connection_id;

        void set_server(server* _my_server)
            { my_server=_my_server; }

        void set_id(unsigned int _connection_id)
            { connection_id=_connection_id; }

    protected:
        server *my_server;

        server_connection(int _timeout);
        virtual ~server_connection();

        std::ostream* get_logstream(log_level_values level);

    public:
        void check_timeout();
        void reset_timeout();
        void set_timeout(int _timeout)
            { timeout=_timeout; }

        unsigned int get_id()
            { return connection_id; }

        void add_callback(callback_event_type event, const boost::function<void ()>& func);
};

class server
{
    private:
        int default_timeout;
        log_level_values log_level;
        std::ostream *logstream;

        std::vector<std::list<boost::function<void (unsigned int)> > > callbacks;

        unsigned int next_id;

    protected:
        std::map<unsigned int, server_connection*> connections;

        server();

        virtual bool fill_connection_buffers(void)=0;

        unsigned int add_connection(server_connection* newconn);

        void do_callbacks(callback_event_type event, unsigned int conn_id);

    public:
        virtual ~server();

        void set_default_timeout(int _default_timeout)
            { default_timeout=_default_timeout; }

        int get_default_timeout(void)
            { return default_timeout; }

        void set_logging(std::ostream *_logstream, log_level_values _log_level);

        server_connection* get_connection(unsigned int conn_id);

        void add_callback(callback_event_type event, const boost::function<void (unsigned int)>& func);

        virtual bool fill_buffer(long long usec_timeout=-1, long long* usec_timeout_remaining=NULL)=0;

        void close();

        void cleanup();

        bool get_packet(std::string& data)
            { unsigned int x; return get_packet(data,x); }

        bool get_packet(std::string& data, unsigned int& conn_id);

        std::ostream* get_logstream(log_level_values level);
};

}

#endif