source: src/Observer/Graveyard.cpp@ 44f368

Last change on this file since 44f368 was b324a3, checked in by Frederik Heber <heber@…>, 12 years ago

Added Graveyard for to-be-destroyed Observables.

  • also added Zombie class that wraps an Observable.
  • Notification and Observable have new function getNumberOfObservers().
  • added unit test for Graveyard.
  • Property mode set to 100644
File size: 2.0 KB
Line 
1/*
2 * Project: MoleCuilder
3 * Description: creates and alters molecular systems
4 * Copyright (C) 2013 Frederik Heber. All rights reserved.
5 *
6 *
7 * This file is part of MoleCuilder.
8 *
9 * MoleCuilder is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation, either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * MoleCuilder is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with MoleCuilder. If not, see <http://www.gnu.org/licenses/>.
21 */
22
23/*
24 * Graveyard.cpp
25 *
26 * Created on: Sep 5, 2013
27 * Author: heber
28 */
29
30// include config.h
31#ifdef HAVE_CONFIG_H
32#include <config.h>
33#endif
34
35#include "CodePatterns/MemDebug.hpp"
36
37#include "CodePatterns/Observer/Graveyard.hpp"
38
39#include <boost/bind.hpp>
40
41#include "CodePatterns/Log.hpp"
42
43Graveyard::Graveyard() :
44 graveyard_informer( boost::bind(&Graveyard::ObserverLeft, this, _1) )
45{}
46
47Graveyard::~Graveyard()
48{
49 if (graveyard.size() != 0)
50 ELOG(1, "There are still zombies left in the graveyard.");
51}
52
53void Graveyard::turnZombie(Observable *&_observable)
54{
55// LOG(1, "Adding Observable "+toString(_observable)+".");
56 Zombie::ptr newzombie(new Zombie(_observable, graveyard_informer));
57 if (newzombie->getNumberOfObservers() != 0)
58 graveyard.insert( std::make_pair(newzombie->getPtr(), newzombie) );
59}
60
61void Graveyard::ObserverLeft(const Observable *_observable)
62{
63 graveyard_t::iterator iter = graveyard.find(_observable);
64 if (iter != graveyard.end()) {
65 // remove zombie if no Observers are left
66 if (iter->second->getNumberOfObservers() == 0)
67 graveyard.erase(iter);
68 } else {
69 ELOG(1, "Zombie to Observable "+toString(_observable)+" is not known.");
70 }
71}
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