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// SPDX-FileCopyrightText: 2019 - 2022 UnionTech Software Technology Co., Ltd.
//
// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef JOURNALWORK_H
#define JOURNALWORK_H
#include "structdef.h"
#include <QMap>
#include <QObject>
#include <QProcess>
#include <QRunnable>
#include <QMutexLocker>
#include <QEventLoop>
#include <QMutex>
#include <mutex>
#include <systemd/sd-journal.h>
/**
* @brief The journalWork class 系统日志获取进程
*/
class journalWork : public QObject, public QRunnable
{
Q_OBJECT
public:
explicit journalWork(QStringList arg, QObject *parent = nullptr);
explicit journalWork(QObject *parent = nullptr);
~journalWork();
static journalWork *instance()
{
journalWork *sin = m_instance.load();
if (!sin) {
std::lock_guard<std::mutex> lock(m_mutex);
sin = m_instance.load();
if (!sin) {
sin = new journalWork();
m_instance.store(sin);
}
}
return sin;
}
void setArg(QStringList arg);
void run() override;
signals:
/**
* @brief journalData 把获取到的一部分数据传出去的信号
* @param index 当前线程的数字标号
* @param list 数据list
*/
void journalData(int index, QList<LOG_MSG_JOURNAL> list);
/**
* @brief journalFinished 获取数据结束
*/
void journalFinished(int index);
public slots:
void doWork();
QString getReplaceColorStr(const char *d);
void stopWork();
int getIndex();
static int getPublicIndex();
public:
/**
* @brief logList 每次发出的数据list
*/
QList<LOG_MSG_JOURNAL> logList;
QMutex mutex;
/**
* @brief thread_index 静态成员变量，用来每次构造时标记新的当前线程对象 m_threadIndex
*/
static int thread_index ;
private:
QString getDateTimeFromStamp(const QString &str);
void initMap();
QString i2str(int prio);
/**
* @brief m_arg 获取数据筛选参数
*/
QStringList m_arg;
/**
* @brief m_map 等级数字对应字符串
*/
QMap<int, QString> m_map;
// sd_journal *j {nullptr};
QProcess *proc {nullptr};
static std::atomic<journalWork *> m_instance;
static std::mutex m_mutex;
QEventLoop loop;
/**
* @brief m_canRun 是否允许标记量，用于停止该线程
*/
std::atomic_bool m_canRun = false;
/**
* @brief m_threadIndex 当前线程标号
*/
int m_threadIndex;
};
#endif // JOURNALWORK_H
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