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/*
* Copyright 2023 KylinSoft Co., Ltd.
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "systemresourcewatcher.h"
#include <QFile>
#include <QJsonDocument>
#include <QJsonArray>
#include <QTimer>
#include <QThread>
#include <QDebug>
#include <sys/epoll.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <libproc2/meminfo.h>
#include "common.h"
SystemResourceWatcher::SystemResourceWatcher(QObject *parent)
: ResourceWatcher{parent}
, m_stop(false)
, m_timer(new QTimer(this))
{
connect(m_timer, &QTimer::timeout, this, &SystemResourceWatcher::detectMemory);
ConfManager &confMgr = common::Singleton<ConfManager>::GetInstance();
m_resourceThrehold = confMgr.resourceThreshold(ConfManager::Memory);
m_detectEffectiveNumber = confMgr.detectEffectiveNumber(ConfManager::Memory);
if (m_detectEffectiveNumber == 0) {
m_detectEffectiveNumber = 5;
}
}
void SystemResourceWatcher::stop()
{
m_stop = true;
}
unsigned long SystemResourceWatcher::getAvailableMem()
{
meminfo_info *meminfo = nullptr;
procps_meminfo_new(&meminfo);
if (!meminfo) {
return 0;
}
meminfo_result *memResult = procps_meminfo_get(meminfo, MEMINFO_MEM_AVAILABLE);
if (!memResult) {
return 0;
}
procps_meminfo_unref(&meminfo);
return memResult->result.ul_int;
}
void SystemResourceWatcher::detectMemory()
{
uint mbMainAvailable = getAvailableMem() / (double)1024;
if (mbMainAvailable > m_resourceThrehold.value(ConfManager::Low)) {
return;
}
if (mbMainAvailable <= m_resourceThrehold.value(ConfManager::Low) &&
mbMainAvailable > m_resourceThrehold.value(ConfManager::Medium)) {
Q_EMIT ResourceThresholdWarning("Memory", 1);
return;
}
if (mbMainAvailable <= m_resourceThrehold.value(ConfManager::Medium) &&
mbMainAvailable > m_resourceThrehold.value(ConfManager::High)) {
Q_EMIT ResourceThresholdWarning("Memory", 2);
return;
}
if (mbMainAvailable <= m_resourceThrehold.value(ConfManager::High)) {
Q_EMIT ResourceThresholdWarning("Memory", 3);
}
}
void SystemResourceWatcher::start()
{
m_timer->start(1000);
}
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