Files
proton-bridge/internal/frontend/bridge-gui/bridgepp/bridgepp/ProcessMonitor.cpp
2023-01-02 11:09:11 +01:00

122 lines
3.9 KiB
C++

// Copyright (c) 2023 Proton AG
//
// This file is part of Proton Mail Bridge.
//
// Proton Mail Bridge 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.
//
// Proton Mail Bridge 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 Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
#include "ProcessMonitor.h"
#include "Exception/Exception.h"
namespace bridgepp
{
//****************************************************************************************************************************************************
/// \param[in] exePath The path of the executable.
/// \param[in] args The list of command-line arguments.
/// \param[in] parent The parent object of the worker.
//****************************************************************************************************************************************************
ProcessMonitor::ProcessMonitor(QString const &exePath, QStringList const &args, QObject *parent)
: Worker(parent)
, exePath_(exePath)
, args_(args)
, out_(stdout)
, err_(stderr)
{
QFileInfo fileInfo(exePath);
if (!fileInfo.exists())
throw Exception(QString("Could not locate %1 executable.").arg(fileInfo.baseName()));
if ((!fileInfo.isFile()) || (!fileInfo.isExecutable()))
throw Exception(QString("Invalid %1 executable").arg(fileInfo.baseName()));
}
//****************************************************************************************************************************************************
//
//****************************************************************************************************************************************************
void ProcessMonitor::forwardProcessOutput(QProcess &p) {
QByteArray array = p.readAllStandardError();
if (!array.isEmpty())
{
err_ << array;
err_.flush();
}
array = p.readAllStandardOutput();
if (!array.isEmpty())
{
out_ << array;
out_.flush();
}
}
//****************************************************************************************************************************************************
//
//****************************************************************************************************************************************************
void ProcessMonitor::run()
{
try
{
{
QMutexLocker locker(&statusMutex_);
status_.ended = false;
status_.pid = -1;
}
emit started();
QProcess p;
p.start(exePath_, args_);
p.waitForStarted();
{
QMutexLocker locker(&statusMutex_);
status_.pid = p.processId();
}
while (!p.waitForFinished(100))
{
this->forwardProcessOutput(p);
}
this->forwardProcessOutput(p);
QMutexLocker locker(&statusMutex_);
status_.ended = true;
status_.returnCode = p.exitCode();
emit processExited(status_.returnCode);
emit finished();
}
catch (Exception const &e)
{
emit error(e.qwhat());
}
}
//****************************************************************************************************************************************************
/// \return status of the monitored process
//****************************************************************************************************************************************************
const ProcessMonitor::MonitorStatus ProcessMonitor::getStatus()
{
QMutexLocker locker(&statusMutex_);
return status_;
}
} // namespace bridgepp