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         // Termino transmisiones.
  48         Glib::Mutex::Lock lock(transmissions_mutex);
  49         for (TransmitterList::iterator trans = transmissions.end();
  50                         trans != transmissions.end(); trans++) {
  51                 (*trans)->finish(true);
  52         }
  53 }
  54
  55 Plant::Plant(const string& filename): simulator(filename), filename(filename) {
  56 #ifdef DEBUG
  57         cerr << __FILE__ << "(" << __LINE__ << ")"
  58                 << ": constructor. filename = " << filename << endl;
  59 #endif // DEBUG
  60         // TODO plant
  61 /*      simulator.add_pump("bomba1");
  62         simulator.add_conduct("c");
  63         simulator.add_conduct("c1");
  64         simulator.add_drainage("d");
  65         simulator.add_tank("tanque");
  66
  67         simulator.connect("bomba1", "c", Model::IConector::OUT);
  68         simulator.connect("c", "tanque", Model::IConector::OUT);
  69         simulator.connect("tanque", "c1", Model::IConector::OUT);
  70         simulator.connect("c1", "d", Model::IConector::OUT);
  71 */
  72 }
  73
  74 void Plant::real_run(void) {
  75 #ifdef DEBUG
  76         cerr << __FILE__ << "(" << __LINE__ << ")"
  77                 << ": real_run." << endl;
  78 #endif // DEBUG
  79         while (!stop) {
  80                 simulator_mutex.lock();
  81                 simulator.simulate();
  82                 string plantstatus = simulator.get_state_as_xml();
  83                 simulator_mutex.unlock();
  84                 transmissions_mutex.lock();
  85                 for (TransmitterList::iterator i = transmissions.begin();
  86                                 i != transmissions.end(); i++) {
  87                         (*i)->send(plantstatus);
  88                 }
  89                 transmissions_mutex.unlock();
  90                 Glib::usleep(1000000);
  91         }
  92 }
  93
  94 bool Plant::transmission_start(string& host, Connection::Port& port) {
  95 #ifdef DEBUG
  96                 cerr << __FILE__ << "(" << __LINE__ << ")"
  97                         << ": transmission_start(host = " << host <<
  98                         ", port = " << port << ")." << endl;
  99 #endif // DEBUG
 100         Glib::Mutex::Lock lock(transmissions_mutex);
 101         for (TransmitterList::iterator i = transmissions.begin();
 102                         i != transmissions.end(); i++) {
 103                 if (((*i)->get_host() == host) && ((*i)->get_port() == port)) {
 104 #ifdef DEBUG
 105                         cerr << __FILE__ << "(" << __LINE__ << ")"
 106                                 << ": transmission_start ERROR: ya existe."
 107                                 << endl;
 108 #endif // DEBUG
 109                         return false;
 110                 }
 111         }
 112         Transmitter* trans;
 113         try {
 114                 trans = new Transmitter(host, port);
 115         } catch (const sockerr& e) { // TODO - Hace mas selectivo el catch?
 116 #ifdef DEBUG
 117                 cerr << __FILE__ << "(" << __LINE__ << ")"
 118                         << ": transmission_start ERROR (" << e.serrno()
 119                         << "): " << e.errstr() << endl;
 120 #endif // DEBUG
 121                 //delete trans;
 122                 return false;
 123 //      } catch (...) { // TODO - Hace mas selectivo el catch?
 124 //#ifdef DEBUG
 125 //              cerr << __FILE__ << "(" << __LINE__ << ")"
 126 //                      << ": transmission_start ERROR: desconocido."
 127 //                      << endl;
 128 //#endif // DEBUG
 129 //              //delete trans;
 130 //              return false;
 131         }
 132         transmissions.push_back(trans);
 133         trans->signal_finished().connect(SigC::bind<Transmitter*>(
 134                                 SigC::slot_class(*this, &Plant::on_transmission_finished),
 135                                 trans));
 136         trans->run();
 137         host = trans->get_host();
 138         port = trans->get_port();
 139         return true;
 140 }
 141
 142 bool Plant::transmission_stop(const string& host,
 143                 const Connection::Port& port) {
 144 #ifdef DEBUG
 145         cerr << __FILE__ << "(" << __LINE__ << ")"
 146                 << ": transmission_stop(host = " << host <<
 147                 ", port = " << port << ")." << endl;
 148 #endif // DEBUG
 149         Glib::Mutex::Lock lock(transmissions_mutex);
 150         for (TransmitterList::iterator i = transmissions.begin();
 151                         i != transmissions.end(); i++) {
 152                 if (((*i)->get_host() == host) && ((*i)->get_port() == port)) {
 153                         (*i)->finish();
 154                         return true;
 155                 }
 156         }
 157         return false; // No la encontró.
 158 }
 159
 160 void Plant::on_transmission_finished(Transmitter* transmission) {
 161 #ifdef DEBUG
 162         cerr << __FILE__ << "(" << __LINE__ << ")"
 163                 <<  ": on_transmission_finished(transmission = "
 164                 << transmission << ")" << endl;
 165 #endif // DEBUG
 166         Glib::Mutex::Lock lock(transmissions_mutex);
 167         transmissions.remove(transmission);
 168 #ifdef DEBUG
 169         cerr << __FILE__ << "(" << __LINE__ << ")"
 170                 <<  ": lista de conexiones" << endl;
 171         for (TransmitterList::const_iterator i = transmissions.begin();
 172                         i != transmissions.end(); i++) {
 173                 cerr << "\t " << *i << endl;
 174         }
 175 #endif // DEBUG
 176 }
 177
 178 bool Plant::set_open(const std::string& element, bool open) {
 179 #ifdef DEBUG
 180                 cerr << __FILE__ << "(" << __LINE__ << ")"
 181                         << ": set_open(element = " << element <<
 182                         ", open = " << open << ")." << endl;
 183 #endif // DEBUG
 184         Glib::Mutex::Lock lock(simulator_mutex);
 185         return simulator.set_open(element, open);
 186 }
 187
 188 const string Plant::get_xml(void) const {
 189 #ifdef DEBUG
 190                 cerr << __FILE__ << "(" << __LINE__ << ")"
 191                         << ": get_xml()." << endl;
 192 #endif // DEBUG
 193         ostringstream oss;
 194         ifstream ifs(filename.c_str());
 195         ifs >> oss.rdbuf();
 196         return oss.str();
 197 }
 198
 199 /*
 200 bool Plant::transmission_exists(const string& host,
 201                 const Connection::Port& port) {
 202         Glib::Mutex::Lock lock(transmissions_mutex);
 203         for (TransmitterList::const_iterator i = transmissions.begin();
 204                         i != transmissions.end(); i++) {
 205                 if (((*i)->get_host() == host) && ((*i)->get_oprt() == port)) {
 206                         return true;
 207                 }
 208         }
 209         return false; // No la encontró.
 210 }
 211 */
 212
 213 //const std::string& Plant::get_filename(void) const {
 214 //      return filename;
 215 //}
 216
 217 /// \todo FIXME esto deberia estar protegido por un mutex.
 218 //Plant::SignalUpdated& Plant::signal_updated(void) {
 219 //      return updated;
 220 //}
 221
 222 } // namespace Server
 223
 224 } // namespace PlaQui
 225