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/*
* Copyright (C) 2003-2014 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_NFS_MANAGER_HXX
#define MPD_NFS_MANAGER_HXX
#include "check.h"
#include "Connection.hxx"
#include "Compiler.h"
#include <string>
#include <map>
/**
* A manager for NFS connections. Handles multiple connections to
* multiple NFS servers.
*/
class NfsManager {
class ManagedConnection final : public NfsConnection {
NfsManager &manager;
public:
ManagedConnection(NfsManager &_manager, EventLoop &_loop,
const char *_server,
const char *_export_name)
:NfsConnection(_loop, _server, _export_name),
manager(_manager) {}
#if defined(__GNUC__) && !defined(__clang__) && !GCC_CHECK_VERSION(4,8)
/* needed due to lack of std::map::emplace() */
ManagedConnection(ManagedConnection &&other)
:NfsConnection(std::move(other)),
manager(other.manager) {}
#endif
protected:
/* virtual methods from NfsConnection */
void OnNfsConnectionError(Error &&error) override;
};
EventLoop &loop;
/**
* Maps server+":"+export_name (see method Key()) to
* #ManagedConnection.
*/
std::map<std::string, ManagedConnection> connections;
public:
NfsManager(EventLoop &_loop)
:loop(_loop) {}
gcc_pure
NfsConnection &GetConnection(const char *server,
const char *export_name);
private:
gcc_pure
static std::string Key(const char *server, const char *export_name) {
return std::string(server) + ':' + export_name;
}
};
#endif
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