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/****************************************************************************
**
** Copyright (C) 2020 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "connectionmanager.h"
#include "endpuppetcommand.h"
#include "nodeinstanceserverproxy.h"
#include "nodeinstanceview.h"
#include "puppetcreator.h"
#ifndef QMLDESIGNER_TEST
#include <qmldesignerplugin.h>
#endif
#include <projectexplorer/target.h>
#include <QLocalServer>
#include <QLocalSocket>
#include <QTimer>
#include <QUuid>
namespace QmlDesigner {
ConnectionManager::ConnectionManager() = default;
ConnectionManager::~ConnectionManager() = default;
void ConnectionManager::setUp(NodeInstanceServerProxy *nodeInstanceServerProxy,
const QString &qrcMappingString,
ProjectExplorer::Target *target)
{
BaseConnectionManager::setUp(nodeInstanceServerProxy, qrcMappingString, target);
m_localServer = std::make_unique<QLocalServer>();
QString socketToken(QUuid::createUuid().toString());
m_localServer->listen(socketToken);
m_localServer->setMaxPendingConnections(3);
NodeInstanceView *nodeInstanceView = nodeInstanceServerProxy->nodeInstanceView();
PuppetCreator puppetCreator(target, nodeInstanceView->model());
puppetCreator.setQrcMappingString(qrcMappingString);
puppetCreator.createQml2PuppetExecutableIfMissing();
for (Connection &connection : m_connections) {
connection.qmlPuppetProcess = puppetCreator.createPuppetProcess(
connection.mode,
socketToken,
nodeInstanceView,
[&] { printProcessOutput(connection.qmlPuppetProcess.get(), connection.name); },
[&](int exitCode, QProcess::ExitStatus exitStatus) {
processFinished(exitCode, exitStatus);
});
const int second = 1000;
int waitConstant = 8 * second;
if (!connection.qmlPuppetProcess->waitForStarted(waitConstant)) {
closeSocketsAndKillProcesses();
showCannotConnectToPuppetWarningAndSwitchToEditMode();
return;
}
waitConstant /= 2;
bool connectedToPuppet = true;
if (!m_localServer->hasPendingConnections())
connectedToPuppet = m_localServer->waitForNewConnection(waitConstant);
if (connectedToPuppet) {
connection.socket.reset(m_localServer->nextPendingConnection());
QObject::connect(connection.socket.get(), &QIODevice::readyRead, [&] {
readDataStream(connection);
});
} else {
closeSocketsAndKillProcesses();
showCannotConnectToPuppetWarningAndSwitchToEditMode();
return;
}
}
m_localServer->close();
connect(this,
&ConnectionManager::processCrashed,
nodeInstanceServerProxy,
&NodeInstanceServerProxy::processCrashed);
}
void ConnectionManager::shutDown()
{
BaseConnectionManager::shutDown();
closeSocketsAndKillProcesses();
m_localServer.reset();
for (Connection &connection : m_connections)
connection.clear();
}
void ConnectionManager::writeCommand(const QVariant &command)
{
for (Connection &connection : m_connections)
writeCommandToIODevice(command, connection.socket.get(), m_writeCommandCounter);
m_writeCommandCounter++;
}
void ConnectionManager::processFinished(int exitCode, QProcess::ExitStatus exitStatus)
{
auto finishedProcess = qobject_cast<QProcess *>(sender());
if (finishedProcess)
qWarning() << "Process" << (exitStatus == QProcess::CrashExit ? "crashed:" : "finished:")
<< finishedProcess->arguments() << "exitCode:" << exitCode;
else
qWarning() << "Process" << (exitStatus == QProcess::CrashExit ? "crashed:" : "finished:")
<< sender() << "exitCode:" << exitCode;
writeCommand(QVariant::fromValue(EndPuppetCommand()));
closeSocketsAndKillProcesses();
if (exitStatus == QProcess::CrashExit)
emit processCrashed();
}
void ConnectionManager::closeSocketsAndKillProcesses()
{
for (Connection &connection : m_connections) {
if (connection.socket) {
disconnect(connection.socket.get());
disconnect(connection.qmlPuppetProcess.get());
connection.socket->waitForBytesWritten(1000);
connection.socket->abort();
}
if (connection.qmlPuppetProcess) {
QTimer::singleShot(3000, connection.qmlPuppetProcess.get(), &QProcess::terminate);
QTimer::singleShot(6000, connection.qmlPuppetProcess.get(), &QProcess::kill);
}
connection.clear();
}
}
void ConnectionManager::printProcessOutput(QProcess *process, const QString &connectionName)
{
while (process && process->canReadLine()) {
QByteArray line = process->readLine();
line.chop(1);
qDebug().nospace() << connectionName << " Puppet: " << line;
}
qDebug() << "\n";
}
} // namespace QmlDesigner
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