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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2009 Sun Microsystems, Inc.
*
* 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; version 2 of the License.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <drizzled/session/cache.h>
#include <boost/foreach.hpp>
#include <drizzled/current_session.h>
#include <drizzled/plugin/authorization.h>
#include <drizzled/session.h>
#include <vector>
namespace drizzled {
namespace session {
bool volatile Cache::_ready_to_exit= false;
Cache::list Cache::cache;
boost::mutex Cache::_mutex;
boost::condition_variable Cache::_end;
Cache::session_ptr Cache::find(const session_id_t &id)
{
boost::mutex::scoped_lock scopedLock(_mutex);
BOOST_FOREACH(list::const_reference it, cache)
{
if (it->thread_id == id)
return it;
}
return session_ptr();
}
void Cache::shutdownFirst()
{
boost::mutex::scoped_lock scopedLock(_mutex);
_ready_to_exit= true;
/* do the broadcast inside the lock to ensure that my_end() is not called */
_end.notify_all();
}
/* Wait until cleanup is done */
void Cache::shutdownSecond()
{
boost::mutex::scoped_lock scopedLock(_mutex);
while (not _ready_to_exit)
{
_end.wait(scopedLock);
}
}
size_t Cache::count()
{
boost::mutex::scoped_lock scopedLock(_mutex);
return cache.size();
}
void Cache::insert(const session_ptr& arg)
{
boost::mutex::scoped_lock scopedLock(_mutex);
cache.push_back(arg);
}
void Cache::erase(const session_ptr& arg)
{
list::iterator iter= std::find(cache.begin(), cache.end(), arg);
assert(iter != cache.end());
cache.erase(iter);
}
} /* namespace session */
} /* namespace drizzled */
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