QProcess to extract files using 7zip in subprocess - c++

Question

I am trying to use QProcess to call 7z.exe and unzip all *.zip and *.7z files in a root directory and subdirectories, but it works only in the root directory.
It looks like it also does not have a problem finding the right path to the next archive, but it did not unzip the file.
Output:
QProcess::start: Process is already running
Can someone help me with this problem?
My code:
mainwindows.h:
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
{
ui->setupUi(this);
connect(&unzip,&QProcess::readyReadStandardOutput,this,&MainWindow::readyReadStandardOutput);
connect(&unzip,&QProcess::stateChanged,this,&MainWindow::statusChanged);
connect(ui->startButton,&QPushButton::clicked,this,&MainWindow::startClicked);
connect(&unzip,&QProcess::errorOccurred,this,&MainWindow::processError);
connect(&unzip, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),this,&MainWindow::processFinished);
connect(ui->selectPath,&QPushButton::clicked,this,&MainWindow::selectPathClicked);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::statusChanged(QProcess::ProcessState state){
switch (state) {
case QProcess::NotRunning:
ui->startButton->setText("START");
this->updateUi(true);
break;
case QProcess::Running:
case QProcess::Starting:
ui->startButton->setText("STOP");
this->updateUi(false);
}
}
void MainWindow::updateUi(bool enable)
{
ui->pathEdit->setEnabled(enable);
}
void MainWindow::startClicked()
{
qDebug()<<"Started";
QStringList arguments;
QString path=ui->pathEdit->text();
arguments<<"x"<<path+QDir::separator()+"*.zip"<<"-o"+path+QDir::separator()+"*";
switch (unzip.state()) {
case QProcess::NotRunning:
unzip.setWorkingDirectory(QCoreApplication::applicationDirPath());
unzip.start("7z.exe",arguments);
break;
case QProcess::Running:
case QProcess::Starting:
unzip.kill();
break;
}
}
void MainWindow::readyReadStandardOutput(){
ui->logTextEdit->appendPlainText(unzip.readAllStandardOutput());
}
void MainWindow::processError(QProcess::ProcessError error)
{
QMessageBox::critical(this,"Unzip warpper",tr("Error %1 has occured").arg(error));
}
void MainWindow::processFinished(int exitCode, QProcess::ExitStatus exit)
{
switch (exit) {
case QProcess::CrashExit:
QMessageBox::critical(this,"Unzip warpper",tr("Unzip process has crashed"));
break;
case QProcess::NormalExit:
break;
}
if(ui->checkRecursive->isChecked()){
QString path=ui->pathEdit->text();
QDirIterator it(path, QStringList() << "*.zip" << ".7z" ,QDir::Files, QDirIterator::Subdirectories);
while(it.hasNext()){
QString path=it.next();
qDebug()<<path;
qDebug()<<exitCode;
QStringList arguments;
arguments<<"x"<<path+QDir::separator()+"*.zip"<<"-o"+path+QDir::separator()+"*";
unzip.start("7z.exe",arguments);
}
}
}
void MainWindow::selectPathClicked()
{
QString directory = QFileDialog::getExistingDirectory(this,
tr("Select Direcory to unzip"), "");
if(!directory.isEmpty()){
ui->pathEdit->setText(directory);
}
}
void MainWindow::on_actionQuit_triggered()
{
unzip.kill();
QApplication::quit();
}