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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "baseconnectionmanager.h"
#include "endpuppetcommand.h"
#include "nodeinstanceserverproxy.h"
#include "nodeinstanceview.h"
#include "nanotracecommand.h"
#include "nanotrace/nanotrace.h"
#include <QLocalSocket>
#include <QTimer>
namespace QmlDesigner {
void BaseConnectionManager::setUp(NodeInstanceServerInterface *nodeInstanceServer,
const QString &,
ProjectExplorer::Target *,
[[maybe_unused]] AbstractView *view)
{
m_nodeInstanceServer = nodeInstanceServer;
m_isActive = true;
}
void BaseConnectionManager::shutDown()
{
m_isActive = false;
writeCommand(QVariant::fromValue(EndPuppetCommand()));
m_nodeInstanceServer = nullptr;
}
void BaseConnectionManager::setCrashCallback(std::function<void()> callback)
{
std::lock_guard<std::mutex> lock{m_callbackMutex};
m_crashCallback = std::move(callback);
}
bool BaseConnectionManager::isActive() const
{
return m_isActive;
}
void BaseConnectionManager::showCannotConnectToPuppetWarningAndSwitchToEditMode() {}
void BaseConnectionManager::processFinished(const QString &reason)
{
processFinished(-1, QProcess::CrashExit, reason);
}
void BaseConnectionManager::writeCommandToIODevice(const QVariant &command,
QIODevice *ioDevice,
unsigned int commandCounter)
{
if (ioDevice) {
QByteArray block;
QDataStream out(&block, QIODevice::WriteOnly);
out.setVersion(QDataStream::Qt_4_8);
out << quint32(0);
out << quint32(commandCounter);
out << command;
out.device()->seek(0);
out << quint32(static_cast<unsigned long long>(block.size()) - sizeof(quint32));
ioDevice->write(block);
}
}
void BaseConnectionManager::dispatchCommand(const QVariant &command, Connection &)
{
if (!isActive())
return;
m_nodeInstanceServer->dispatchCommand(command);
}
void BaseConnectionManager::readDataStream(Connection &connection)
{
QList<QVariant> commandList;
while (!connection.socket->atEnd()) {
if (connection.socket->bytesAvailable() < int(sizeof(quint32)))
break;
QDataStream in(connection.socket.get());
in.setVersion(QDataStream::Qt_4_8);
if (connection.blockSize == 0)
in >> connection.blockSize;
if (connection.socket->bytesAvailable() < connection.blockSize)
break;
quint32 commandCounter = 0;
in >> commandCounter;
bool commandLost = !((connection.lastReadCommandCounter == 0 && commandCounter == 0)
|| (connection.lastReadCommandCounter + 1 == commandCounter));
if (commandLost)
qDebug() << "server command lost: " << connection.lastReadCommandCounter << commandCounter;
connection.lastReadCommandCounter = commandCounter;
QVariant command;
in >> command;
connection.blockSize = 0;
#ifdef NANOTRACE_ENABLED
if (command.userType() != QMetaType::type("PuppetAliveCommand")) {
if (command.userType() == QMetaType::type("SyncNanotraceCommand")) {
SyncNanotraceCommand cmd = command.value<SyncNanotraceCommand>();
NANOTRACE_INSTANT_ARGS("Sync", "readCommand",
{"name", cmd.name().toStdString()},
{"counter", int64_t(commandCounter)});
writeCommand(command);
// Do not dispatch this command.
continue;
} else {
NANOTRACE_INSTANT_ARGS("Update", "readCommand",
{"name", command.typeName()},
{"counter", int64_t(commandCounter)});
}
}
#endif
commandList.append(command);
}
for (const QVariant &command : commandList)
dispatchCommand(command, connection);
}
void BaseConnectionManager::callCrashCallback()
{
std::lock_guard<std::mutex> lock{m_callbackMutex};
if (m_crashCallback)
m_crashCallback();
}
} // namespace QmlDesigner
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