///////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2010 Artyom Beilis (Tonkikh) <artyomtnk@yahoo.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef CPPDB_CONN_MANAGER_H
#define CPPDB_CONN_MANAGER_H
#include <cppdb/defs.h>
#include <cppdb/ref_ptr.h>
#include <cppdb/mutex.h>
#include <map>
#include <string>
#include <memory>
namespace cppdb {
class pool;
class connection_info;
namespace backend {
class connection;
}
///
/// \brief This class is the major gateway to new connections
///
/// It handles connection pools and forwards request to the drivers.
///
/// This class member functions are thread safe
///
class CPPDB_API connections_manager {
connections_manager();
~connections_manager();
connections_manager(connections_manager const &);
void operator = (connections_manager const &);
public:
///
/// Get a singleton instance of the class
///
static connections_manager &instance();
///
/// Create a new connection using connection string \a cs
///
ref_ptr<backend::connection> open(std::string const &cs);
///
/// Create a new connection using parsed connection string \a ci
///
ref_ptr<backend::connection> open(connection_info const &ci);
///
/// Collect all connections that were not used for long time and close them.
///
void gc();
private:
struct data;
std::auto_ptr<data> d;
mutex lock_;
typedef std::map<std::string,ref_ptr<pool> > connections_type;
connections_type connections_;
};
} // cppdb
#endif
