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/*
Copyright (C) 2005-2009 Michel de Boer <michel@twinklephone.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "observer.h"
using namespace patterns;
t_subject::~t_subject() {
mtx_observers.lock();
for (list<t_observer *>::const_iterator it = observers.begin();
it != observers.end(); ++it)
{
(*it)->subject_destroyed();
}
mtx_observers.unlock();
}
void t_subject::attach(t_observer *o) {
mtx_observers.lock();
observers.push_back(o);
mtx_observers.unlock();
}
void t_subject::detach(t_observer *o) {
mtx_observers.lock();
observers.remove(o);
mtx_observers.unlock();
}
void t_subject::notify(void) const {
mtx_observers.lock();
for (list<t_observer *>::const_iterator it = observers.begin();
it != observers.end(); ++it)
{
(*it)->update();
}
mtx_observers.unlock();
}
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