zone.hpp

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/*
 *  Copyright (c) 2014 Samsung Electronics Co., Ltd All Rights Reserved
 *
 *  Contact: Piotr Bartosiewicz <p.bartosiewi@partner.samsung.com>
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License
 */

#ifndef COMMON_LXC_ZONE_HPP
#define COMMON_LXC_ZONE_HPP

#include <string>
#include <functional>
#include <sys/types.h>

// fwd declaration of lxc internals
struct lxc_container;

namespace vasum {
namespace lxc {


class LxcZone {
public:
    typedef std::function<int()> Call;

    enum class State {
        STOPPED,
        STARTING,
        RUNNING,
        STOPPING,
        ABORTING,
        FREEZING,
        FROZEN,
        THAWED
    };

    LxcZone(const std::string& lxcPath, const std::string& zoneName);
    ~LxcZone();

    LxcZone(const LxcZone&) = delete;
    LxcZone& operator=(const LxcZone&) = delete;

    std::string getName() const;

    std::string getConfigItem(const std::string& key);

    bool isDefined();

    static std::string toString(State state);

    State getState();

    bool waitForState(State state, int timeout);

    bool create(const std::string& templatePath, const char* const* argv);

    bool destroy();

    bool start(const char* const* argv);

    bool stop();

    bool reboot();

    bool shutdown(int timeout);

    bool freeze();

    bool unfreeze();

    pid_t getInitPid() const;

    bool runInZone(Call& call);

    bool createFile(const std::string& path,
                    const std::int32_t flags,
                    const std::int32_t mode,
                    int *fdPtr);

private:
    lxc_container* mLxcContainer;
    bool setRunLevel(int runLevel);
    void refresh();
};


} // namespace lxc
} // namespace vasum


#endif // COMMON_LXC_ZONE_HPP