developer.intra2net.com Git - libt2n/blob - src/server.hxx

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Gerd v. Egidy                                   *
   3  *   gve@intra2net.com                                                     *
   4  *                                                                         *
   5  *   This library is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU Lesser General Public License version   *
   7  *   2.1 as published by the Free Software Foundation.                     *
   8  *                                                                         *
   9  *   This library is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU Lesser General Public License for more details.                   *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU Lesser General Public      *
  15  *   License along with this program; if not, write to the                 *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19 #ifndef __LIBT2N_SERVER
  20 #define __LIBT2N_SERVER
  21
  22 #include <iostream>
  23 #include <string>
  24 #include <map>
  25
  26 namespace libt2n
  27 {
  28
  29 /**
  30     Basic connection class
  31 */
  32 class connection
  33 {
  34     private:
  35         int timeout;
  36         int last_action_time;
  37         bool closed;
  38         std::string buffer;
  39
  40     protected:
  41         connection(int _timeout)
  42         {
  43             set_timeout(_timeout);
  44             reset_timeout();
  45             closed=false;
  46         }
  47
  48     public:
  49         ~connection()
  50             { this->close(); }
  51
  52         void check_timeout();
  53         void reset_timeout();
  54         void set_timeout(int _timeout)
  55             { timeout=_timeout; }
  56
  57         bool is_closed()
  58             { return closed; }
  59
  60         virtual void close()
  61             { closed=true; }
  62
  63         virtual void fill_buffer(void)=0;
  64
  65         bool get_packet(std::string& data, unsigned int& conn_id);
  66         virtual void write(const std::string& data)=0;
  67 };
  68
  69 /**
  70     Basic server class
  71 */
  72 class server
  73 {
  74     public:
  75         enum log_level_values { none=0, error=1, debug=2 };
  76
  77     private:
  78         int default_timeout;
  79         log_level_values log_level;
  80         std::ostream *logstream;
  81
  82         unsigned int next_id;
  83         std::map<unsigned int, connection*> connections;
  84
  85     protected:
  86         server()
  87         {
  88             set_default_timeout(30);
  89             set_logging(NULL,none);
  90             next_id=0;
  91         }
  92
  93     public:
  94         virtual ~server();
  95
  96         void set_default_timeout(int _default_timeout)
  97             { default_timeout=_default_timeout; }
  98
  99         void set_logging(std::ostream *_logstream, log_level_values _log_level)
 100         {
 101             log_level=_log_level;
 102             logstream=_logstream;
 103         }
 104
 105         connection* get_connection(unsigned int conn_id);
 106
 107         virtual void fill_buffer(long long usec_timeout=-1)=0;
 108         void check_timeout();
 109
 110         bool get_packet(std::string& data, unsigned int& conn_id);
 111
 112         void fill_connection_buffers(void);
 113
 114     protected:
 115         void log(log_level_values level, const std::string& message)
 116             { log(level,message.c_str()); }
 117         void log(log_level_values level, const char* message);
 118 };
 119
 120 }
 121
 122 #endif