cgroup.hpp

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/*
 *  Copyright (C) 2015 Samsung Electronics Co., Ltd All Rights Reserved
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1 as published by the Free Software Foundation.
 *
 *  This library 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 library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef LXCPP_CGROUPS_CGROUP_HPP
#define LXCPP_CGROUPS_CGROUP_HPP

#include "lxcpp/cgroups/subsystem.hpp"

namespace lxcpp {

class CGroup {

public:
    CGroup(const std::string& subsys, const std::string& name) :
        mSubsys(subsys),
        mName(name)
    {
    }

    CGroup(const std::string& subsysAndCgroup);

    bool exists() const;

    void create();

    void destroy();

    void setCommonValue(const std::string& param, const std::string& value);

    std::string getCommonValue(const std::string& param) const;

    void setValue(const std::string& param, const std::string& value);

    std::string getValue(const std::string& param) const;

    void assignGroup(pid_t pid);

    void assignPid(pid_t pid);

    std::vector<pid_t> getPids() const;

    static CGroup getCGroup(const std::string& subsys, pid_t pid);

private:
    const Subsystem mSubsys; // referred subsystem
    const std::string mName; // path relative to subsystem "root"
};

} //namespace lxcpp

#endif // LXCPP_CGROUPS_CGROUP_HPP