/*
 * Copyright (C) 2019 The Android Open Source Project
 *
 * 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.
 */

#pragma once

#include <cstddef>
#include <cstdint>
#include <string>

// Minimal controller description
struct CgroupController {
  public:
    CgroupController() = default;
    CgroupController(uint32_t version, uint32_t flags, const std::string& name,
                     const std::string& path, uint32_t max_activation_depth);

    uint32_t version() const;
    uint32_t flags() const;
    uint32_t max_activation_depth() const;
    const char* name() const;
    const char* path() const;

    void set_flags(uint32_t flags);

  private:
    static constexpr size_t CGROUP_NAME_BUF_SZ = 16;
    static constexpr size_t CGROUP_PATH_BUF_SZ = 32;

    uint32_t version_ = 0;
    uint32_t flags_ = 0;
    uint32_t max_activation_depth_ = UINT32_MAX;
    char name_[CGROUP_NAME_BUF_SZ] = {};
    char path_[CGROUP_PATH_BUF_SZ] = {};
};