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moonfall/RefCount.inl

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C++

/*
Moonfall Copyright (C) 2008 Alex Yatskov
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 3 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 <http://www.gnu.org/licenses/>.
*/
template <typename T>
RefCount<T>::RefCount(int history) :
m_history(history)
{
}
template <typename T>
boost::shared_ptr<T> RefCount<T>::FindClient(Token id) const
{
typename ClientMap::const_iterator iter = m_map.find(id);
return iter == m_map.end() ? boost::shared_ptr<T>() : iter->second.lock();
}
template <typename T>
void RefCount<T>::AddClient(Token id, const boost::shared_ptr<T>& client)
{
if (FindClient(id))
{
m_map[id] = client;
}
else
{
m_map.insert(std::make_pair(id, boost::weak_ptr<T>(client)));
}
CacheClient(client);
}
template <typename T>
void RefCount<T>::RemoveClient(Token id)
{
typename ClientMap::iterator iter = m_map.find(id);
if (iter != m_map.end())
{
m_map.erase(iter);
}
}
template <typename T>
void RefCount<T>::ClearClients()
{
m_map.clear();
m_list.clear();
}
template <typename T>
void RefCount<T>::CacheClient(const boost::shared_ptr<T>& client)
{
if (m_history == 0)
{
return;
}
typename ClientList::iterator iter = find(m_list.begin(), m_list.end(), client);
if (iter == m_list.end())
{
m_list.push_back(client);
if (m_list.size() > static_cast<unsigned>(m_history))
{
m_list.erase(m_list.begin());
}
}
else
{
m_list.erase(iter);
m_list.push_back(client);
}
}