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add three steps systembus interface to modify max_user_watches nums permanent

This commit is contained in:
zhangzihao 2021-01-06 09:44:14 +08:00
parent 3e8b64c840
commit a548935498
2 changed files with 57 additions and 74 deletions
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127
ukuisearch-systemdbus/sysdbusregister.cpp
View File

@ -23,12 +23,10 @@
#include <QSharedPointer>
#include <QRegExp>
#include <stdlib.h>
#include <QGraphicsView>
SysdbusRegister::SysdbusRegister()
{
// mHibernateFile = "/etc/systemd/sleep.conf";
// mHibernateSet = new QSettings(mHibernateFile, QSettings::IniFormat, this);
// mHibernateSet->setIniCodec("UTF-8");
}
SysdbusRegister::~SysdbusRegister()
@ -39,39 +37,20 @@ void SysdbusRegister::exitService() {
qApp->exit(0);
}
//QString SysdbusRegister::GetComputerInfo() {
// QByteArray ba;
// FILE * fp = NULL;
// char cmd[128];
// char buf[1024];
// sprintf(cmd, "dmidecode -t system");
/*
*
* sprintf(cmd, "echo 9999999 | sudo tee -a /proc/sys/fs/inotify/max_user_watches");
* sprintf(cmd, "sysctl -w fs.inotify.max_user_watches=\"9999999\"");
* sprintf(cmd, "echo fs.inotify.max_user_watches=9999999 | sudo tee -a /etc/sysctl.conf");
*/
// if ((fp = popen(cmd, "r")) != NULL){
// rewind(fp);
// while (!feof(fp)) {
// fgets(buf, sizeof (buf), fp);
// ba.append(buf);
// }
// pclose(fp);
// fp = NULL;
// }
// return QString(ba);
//}
QString SysdbusRegister::setInotifyMaxUserWatches5()
QString SysdbusRegister::setInotifyMaxUserWatchesStep1()
{
// QString cmd;
//// cmd = QString("echo 9999999 | sudo tee -a /proc/sys/fs/inotify/max_user_watches");
// cmd = QString("reboot");
// QProcess p;
// p.start(cmd);
// return 123;
QByteArray ba;
FILE * fp = NULL;
char cmd[128];
char buf[1024];
sprintf(cmd, "echo 9999999 | sudo tee -a /proc/sys/fs/inotify/max_user_watches");
if ((fp = popen(cmd, "r")) != NULL){
rewind(fp);
while (!feof(fp)) {
@ -81,46 +60,58 @@ QString SysdbusRegister::setInotifyMaxUserWatches5()
pclose(fp);
fp = NULL;
}
else{
return QString("popen open failed");
}
return QString(ba);
}
////获取免密登录状态
//QString SysdbusRegister::getNoPwdLoginStatus(){
// QByteArray ba;
// FILE * fp = NULL;
// char cmd[128];
// char buf[1024];
// sprintf(cmd, "cat /etc/group |grep nopasswdlogin");
// if ((fp = popen(cmd, "r")) != NULL){
// rewind(fp);
// fgets(buf, sizeof (buf), fp);
// ba.append(buf);
// pclose(fp);
// fp = NULL;
// }else{
// qDebug()<<"popen文件打开失败"<<endl;
// }
// return QString(ba);
//}
QString SysdbusRegister::setInotifyMaxUserWatchesStep2()
{
QByteArray ba;
FILE * fp = NULL;
char cmd[128];
char buf[1024];
sprintf(cmd, "sysctl -w fs.inotify.max_user_watches=\"9999999\"");
if ((fp = popen(cmd, "r")) != NULL){
rewind(fp);
while (!feof(fp)) {
fgets(buf, sizeof (buf), fp);
ba.append(buf);
}
pclose(fp);
fp = NULL;
}
else{
return QString("popen open failed");
}
return QString(ba);
}
////设置免密登录状态
//void SysdbusRegister::setNoPwdLoginStatus() {
QString SysdbusRegister::setInotifyMaxUserWatchesStep3()
{
QByteArray ba;
FILE * fp = NULL;
char cmd[128];
char buf[1024];
sprintf(cmd, "echo fs.inotify.max_user_watches=9999999 | sudo tee -a /etc/sysctl.conf");
if ((fp = popen(cmd, "r")) != NULL){
rewind(fp);
while (!feof(fp)) {
fgets(buf, sizeof (buf), fp);
ba.append(buf);
}
pclose(fp);
fp = NULL;
}
else{
return QString("popen open failed");
}
return QString(ba);
}
//// QString cmd;
//// if(true == status){
//// cmd = QString("gpasswd -a %1 nopasswdlogin").arg(username);
//// } else{
//// cmd = QString("gpasswd -d %1 nopasswdlogin").arg(username);
//// }
//// QProcess::execute(cmd);
// QString cmd;
// cmd = QString("sysctl -w fs.inotify.max_user_watches=\"1\"");
// QProcess::execute(cmd);
//}
//The following example comes from control center
//// 设置自动登录状态
//void SysdbusRegister::setAutoLoginStatus(QString username) {
// QString filename = "/etc/lightdm/lightdm.conf";
// QSharedPointer<QSettings> autoSettings = QSharedPointer<QSettings>(new QSettings(filename, QSettings::IniFormat));
@ -143,19 +134,9 @@ QString SysdbusRegister::setInotifyMaxUserWatches5()
// return time;
//}
//void SysdbusRegister::setSuspendThenHibernate(QString time) {
// mHibernateSet->beginGroup("Sleep");
// mHibernateSet->setValue("HibernateDelaySec", time);
// mHibernateSet->endGroup();
// mHibernateSet->sync();
//}
//void SysdbusRegister::setPasswdAging(int days, QString username) {
// QString cmd;
// cmd = QString("chage -M %1 %2").arg(days).arg(username);
//// cmd = QString("reboot");
// QProcess::execute(cmd);
//}

4
ukuisearch-systemdbus/sysdbusregister.h
View File

@ -50,7 +50,9 @@ public slots:
Q_SCRIPTABLE void exitService();
// Q_SCRIPTABLE QString GetComputerInfo();
Q_SCRIPTABLE QString setInotifyMaxUserWatches5();
Q_SCRIPTABLE QString setInotifyMaxUserWatchesStep1();
Q_SCRIPTABLE QString setInotifyMaxUserWatchesStep2();
Q_SCRIPTABLE QString setInotifyMaxUserWatchesStep3();
// // 设置免密登录状态
// Q_SCRIPTABLE void setNoPwdLoginStatus();