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

   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
  20 #include <sstream>
  21
  22 #include "server.hxx"
  23
  24 namespace libt2n
  25 {
  26
  27 void server_connection::check_timeout()
  28 {
  29     if (timeout != -1 && last_action_time+timeout >= time(NULL))
  30         this->close();
  31 }
  32
  33 void server_connection::reset_timeout()
  34 {
  35     last_action_time=time(NULL);
  36 }
  37
  38 server::~server()
  39 {
  40     std::map<unsigned int, server_connection*>::iterator ie=connections.end();
  41     for(std::map<unsigned int, server_connection*>::iterator i=connections.begin(); i != ie; i++)
  42         delete i->second;
  43 }
  44
  45 int server::add_connection(server_connection* newconn)
  46 {
  47     unsigned int cid=next_id++;
  48     newconn->set_id(cid);
  49     newconn->set_server(this);
  50     connections[cid]=newconn;
  51     return cid;
  52 }
  53
  54 /**
  55     @brief Gets a connection by id
  56
  57     @param conn_id Connection ID
  58
  59     @retval Pointer to connection object
  60 */
  61 server_connection* server::get_connection(unsigned int conn_id)
  62 {
  63     std::map<unsigned int, server_connection*>::iterator p=connections.find(conn_id);
  64     if (p==connections.end())
  65         return NULL;
  66     else
  67         return p->second;
  68 }
  69
  70 /// check for timeouts, remove closed connections. don't forget to call this from time to time.
  71 void server::cleanup()
  72 {
  73     std::map<unsigned int, server_connection*>::iterator ie=connections.end();
  74     for(std::map<unsigned int, server_connection*>::iterator i=connections.begin(); i != ie; i++)
  75         i->second->check_timeout();
  76
  77     for(std::map<unsigned int, server_connection*>::iterator i=connections.begin(); i != ie;)
  78     {
  79         if (i->second->is_closed() && !i->second->packet_available())
  80         {
  81             // closed and no usable data in buffer -> remove
  82             delete i->second;
  83             connections.erase(i);
  84             i=connections.begin();
  85             ie=connections.end();
  86         }
  87         else
  88             i++;
  89     }
  90 }
  91
  92 bool server::get_packet(std::string& data, unsigned int& conn_id)
  93 {
  94     // todo: this is somehow unfair: the first connections in the map get checked more
  95     // often than the others and can thus block them out
  96
  97     std::map<unsigned int, server_connection*>::iterator ie=connections.end();
  98     for(std::map<unsigned int, server_connection*>::iterator i=connections.begin(); i != ie; i++)
  99         if (i->second->get_packet(data))
 100         {
 101             conn_id=i->first;
 102             return true;
 103         }
 104
 105     return false;
 106 }
 107
 108 void server::log(log_level_values level, const char* message)
 109 {
 110     if (logstream && level >= log_level)
 111         (*logstream) << message << std::endl;
 112 }
 113
 114 };