ukui-search/ukui-search-service/cgroup-helper.h

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#ifndef CGROUPHELPER_H
#define CGROUPHELPER_H
#include <QString>
#include <QtDBus/QDBusInterface>
#include <memory>
#include <functional>
class CgroupHelper
{
private:
/**
* @brief getUserPathV2 获取cgroup分组下的用户服务分组绝对路径
* @param groupPath: 手动调用时传入cgroup根路径"/sys/fs/cgroup"
* @return user@xxx.service的绝对路径xxx为用户uid
*/
static QString getUserPathV2(QString groupPath);
/**
* @brief getPath 获取自定义cgroup分组的相对路径
* @return 自定义cgroup分组的相对路径
*/
static QString getPath();
/**
* @brief getCgroupVerson 获取cgroup的版本与内核版本有关
* @return cgroup版本1cgroupV1 2cgroupV2 -1:获取版本错误
*/
static int getCgroupVerson();
/**
* @brief createProcessGroup 创建自定义cgroup分组
* @return 自定义cgroup分组的相对路径
*/
static bool createProcessGroup(QDBusInterface *interface);
/**
* @brief moveProcessToGroup 将进程pid添加到指定cgroup分组下
* @param interface: 用于调用kylin-ProcessManagerDaemon的DBus接口
* @return true 成功 false 失败
*/
static bool moveProcessToGroup(QDBusInterface *interface);
/**
* @brief setProcessGroupCPULimit 根据cgroup版本设置CPU管控
* @param interface: 用于调用kylin-ProcessManagerDaemon的DBus接口
* @return true 成功 false 失败
*/
static bool setProcessGroupCPULimit(QDBusInterface *interface);
/**
* @brief addProcessManagerWhiteList 将进程ID添加到kylin-process-manager的白名单中
* 防止被kylin-procsss-manager管控而产生冲突
* @param interface: 用于调用kylin-ProcessManagerDaemon的DBus接口
* @return true 成功 false 失败
*/
static bool addProcessManagerWhiteList();
/**
* @brief setProcessGroupCPULimitV2 cgroupV2版本限制进程的CPU占用
* @param interface: 用于调用kylin-ProcessManagerDaemon的DBus接口
* @return true 成功 false 失败
*/
static bool setProcessGroupCPULimitV2(QDBusInterface *interface);
/**
* @brief setProcessGroupCPULimitV1 cgroupV1版本限制进程的CPU占用
* @param interface: 用于调用kylin-ProcessManagerDaemon的DBus接口
* @return true 成功 false 失败
*/
static bool setProcessGroupCPULimitV1(QDBusInterface *interface);
//用于调用kylin-ProcessManagerDaemon的DBus接口的智能指针
using CgroupUniquePtr = std::unique_ptr<QDBusInterface, std::function<void(QDBusInterface *)>>;
public:
/**
* @brief setServiceCpuLimit 对外接口为ukui-search-service设置CPU管控
* @return true 成功 false 失败
*/
static bool setServiceCpuLimit();
};
#endif // CGROUPHELPER_H