Server/src/plant.cpp

   1 // vim: set noexpandtab tabstop=4 shiftwidth=4:
   2 //----------------------------------------------------------------------------
   3 //                                  PlaQui
   4 //----------------------------------------------------------------------------
   5 // This file is part of PlaQui.
   6 //
   7 // PlaQui is free software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the Free Software
   9 // Foundation; either version 2 of the License, or (at your option) any later
  10 // version.
  11 //
  12 // PlaQui is distributed in the hope that it will be useful, but WITHOUT ANY
  13 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  14 // FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
  15 // details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with PlaQui; if not, write to the Free Software Foundation, Inc., 59 Temple
  19 // Place, Suite 330, Boston, MA  02111-1307  USA
  20 //----------------------------------------------------------------------------
  21 // Creado:  dom nov 16 13:03:33 ART 2003
  22 // Autores: Leandro Lucarella <llucare@fi.uba.ar>
  23 //----------------------------------------------------------------------------
  24 //
  25 // $Id$
  26 //
  27
  28 #include "plaqui/server/plant.h"
  29 #include <glibmm/timer.h>
  30 #include <sigc++/class_slot.h>
  31 #include <fstream>
  32 #ifdef DEBUG
  33 #       include <iostream>
  34 #endif // DEBUG
  35
  36 using namespace std;
  37
  38 namespace PlaQui {
  39
  40 namespace Server {
  41
  42 Plant::~Plant(void) {
  43 #ifdef DEBUG
  44         cerr << __FILE__ << "(" << __LINE__ << ")"
  45                 << ": destructor." << endl;
  46 #endif // DEBUG
  47         // Mando a terminar todas las transmisiones.
  48         transmissions_mutex.lock();
  49         for (TransmitterList::iterator trans = transmissions.begin();
  50                         trans != transmissions.end(); trans++) {
  51                 (*trans)->finish();
  52         }
  53         TransmitterList::size_type count = transmissions.size();
  54         transmissions_mutex.unlock();
  55         // Espero que terminen realmente.
  56         while (count) {
  57                 Glib::usleep(10000); // 10 milisegundos
  58                 transmissions_mutex.lock();
  59                 count = transmissions.size();
  60                 transmissions_mutex.unlock();
  61         }
  62 }
  63
  64 Plant::Plant(const string& filename): simulator(filename), filename(filename) {
  65 #ifdef DEBUG
  66         cerr << __FILE__ << "(" << __LINE__ << ")"
  67                 << ": constructor. filename = " << filename << endl;
  68 #endif // DEBUG
  69         // TODO plant
  70 /*      simulator.add_pump("bomba1");
  71         simulator.add_conduct("c");
  72         simulator.add_conduct("c1");
  73         simulator.add_drainage("d");
  74         simulator.add_tank("tanque");
  75
  76         simulator.connect("bomba1", "c", Model::IConector::OUT);
  77         simulator.connect("c", "tanque", Model::IConector::OUT);
  78         simulator.connect("tanque", "c1", Model::IConector::OUT);
  79         simulator.connect("c1", "d", Model::IConector::OUT);
  80 */
  81 }
  82
  83 void Plant::real_run(void) throw() {
  84 #ifdef DEBUG
  85         cerr << __FILE__ << "(" << __LINE__ << ")"
  86                 << ": real_run." << endl;
  87 #endif // DEBUG
  88         while (!stop()) {
  89                 simulator_mutex.lock();
  90                 simulator.simulate();
  91                 string plantstatus = simulator.get_state_as_xml();
  92                 simulator_mutex.unlock();
  93                 transmissions_mutex.lock();
  94                 for (TransmitterList::iterator i = transmissions.begin();
  95                                 i != transmissions.end(); i++) {
  96                         (*i)->send(plantstatus);
  97                 }
  98                 transmissions_mutex.unlock();
  99                 Glib::usleep(100000);
 100         }
 101 }
 102
 103 bool Plant::transmission_start(string& host, Connection::Port& port) {
 104 #ifdef DEBUG
 105                 cerr << __FILE__ << "(" << __LINE__ << ")"
 106                         << ": transmission_start(host = " << host <<
 107                         ", port = " << port << ")." << endl;
 108 #endif // DEBUG
 109         Glib::Mutex::Lock lock(transmissions_mutex);
 110         for (TransmitterList::iterator i = transmissions.begin();
 111                         i != transmissions.end(); i++) {
 112                 if (((*i)->get_host() == host) && ((*i)->get_port() == port)) {
 113 #ifdef DEBUG
 114                         cerr << __FILE__ << "(" << __LINE__ << ")"
 115                                 << ": transmission_start ERROR: ya existe."
 116                                 << endl;
 117 #endif // DEBUG
 118                         return false;
 119                 }
 120         }
 121         Transmitter* trans;
 122         try {
 123                 trans = new Transmitter(host, port);
 124         } catch (const sockerr& e) { // TODO - Hace mas selectivo el catch?
 125 #ifdef DEBUG
 126                 cerr << __FILE__ << "(" << __LINE__ << ")"
 127                         << ": transmission_start ERROR (" << e.serrno()
 128                         << "): " << e.errstr() << endl;
 129 #endif // DEBUG
 130                 //delete trans;
 131                 return false;
 132 //      } catch (...) { // TODO - Hace mas selectivo el catch?
 133 //#ifdef DEBUG
 134 //              cerr << __FILE__ << "(" << __LINE__ << ")"
 135 //                      << ": transmission_start ERROR: desconocido."
 136 //                      << endl;
 137 //#endif // DEBUG
 138 //              //delete trans;
 139 //              return false;
 140         }
 141         transmissions.push_back(trans);
 142         trans->signal_finished().connect(SigC::bind<Transmitter*>(
 143                                 SigC::slot_class(*this, &Plant::on_transmission_finished),
 144                                 trans));
 145         trans->run();
 146         host = trans->get_host();
 147         port = trans->get_port();
 148         return true;
 149 }
 150
 151 bool Plant::transmission_stop(const string& host,
 152                 const Connection::Port& port) {
 153 #ifdef DEBUG
 154         cerr << __FILE__ << "(" << __LINE__ << ")"
 155                 << ": transmission_stop(host = " << host <<
 156                 ", port = " << port << ")." << endl;
 157 #endif // DEBUG
 158         Glib::Mutex::Lock lock(transmissions_mutex);
 159         for (TransmitterList::iterator i = transmissions.begin();
 160                         i != transmissions.end(); i++) {
 161                 if (((*i)->get_host() == host) && ((*i)->get_port() == port)) {
 162                         (*i)->finish();
 163                         return true;
 164                 }
 165         }
 166         return false; // No la encontró.
 167 }
 168
 169 void Plant::on_transmission_finished(Transmitter* transmission) {
 170 #ifdef DEBUG
 171         cerr << __FILE__ << "(" << __LINE__ << ")"
 172                 <<  ": on_transmission_finished(transmission = "
 173                 << transmission << ")" << endl;
 174 #endif // DEBUG
 175         Glib::Mutex::Lock lock(transmissions_mutex);
 176         transmissions.remove(transmission);
 177 #ifdef DEBUG
 178         cerr << __FILE__ << "(" << __LINE__ << ")"
 179                 <<  ": lista de conexiones" << endl;
 180         for (TransmitterList::const_iterator i = transmissions.begin();
 181                         i != transmissions.end(); i++) {
 182                 cerr << "\t " << *i << endl;
 183         }
 184 #endif // DEBUG
 185 }
 186
 187 bool Plant::set_open(const std::string& element, bool open) {
 188 #ifdef DEBUG
 189                 cerr << __FILE__ << "(" << __LINE__ << ")"
 190                         << ": set_open(element = " << element <<
 191                         ", open = " << open << ")." << endl;
 192 #endif // DEBUG
 193         Glib::Mutex::Lock lock(simulator_mutex);
 194         return simulator.set_open(element, open);
 195 }
 196
 197 const string Plant::get_xml(void) const {
 198 #ifdef DEBUG
 199                 cerr << __FILE__ << "(" << __LINE__ << ")"
 200                         << ": get_xml()." << endl;
 201 #endif // DEBUG
 202         ostringstream oss;
 203         ifstream ifs(filename.c_str());
 204         ifs >> oss.rdbuf();
 205         return oss.str();
 206 }
 207
 208 /*
 209 bool Plant::transmission_exists(const string& host,
 210                 const Connection::Port& port) {
 211         Glib::Mutex::Lock lock(transmissions_mutex);
 212         for (TransmitterList::const_iterator i = transmissions.begin();
 213                         i != transmissions.end(); i++) {
 214                 if (((*i)->get_host() == host) && ((*i)->get_oprt() == port)) {
 215                         return true;
 216                 }
 217         }
 218         return false; // No la encontró.
 219 }
 220 */
 221
 222 //const std::string& Plant::get_filename(void) const {
 223 //      return filename;
 224 //}
 225
 226 /// \todo FIXME esto deberia estar protegido por un mutex.
 227 //Plant::SignalUpdated& Plant::signal_updated(void) {
 228 //      return updated;
 229 //}
 230
 231 } // namespace Server
 232
 233 } // namespace PlaQui
 234