Reading from QByteArray

[Misenko]

Hi.

I ve got a plugin in which a write some data into the socket:

...
array = new QByteArray();
QDataStream stream(array, QIODevice::WriteOnly);
stream.setVersion(QDataStream::Qt_4_2);
 
QString name = "Program Viewer";
stream << quint32(Data::PluginData) << name << quint32(ProgramViewerMenu::NewImage) << shot.toImage();
screen = shot.toImage();
 
return array;
...
 
socket->write(array);

...
array = new QByteArray();
QDataStream stream(array, QIODevice::WriteOnly);
stream.setVersion(QDataStream::Qt_4_2);
		
QString name = "Program Viewer";
stream << quint32(Data::PluginData) << name << quint32(ProgramViewerMenu::NewImage) << shot.toImage();
screen = shot.toImage();
		
return array;
...

socket->write(array);

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And in another program I have slot read() which is connected to readyRead() signal of socket.

void Connection::read()
{
	DataThread *thread = new DataThread(socket, this);
 
	connect(thread, SIGNAL(serverData(QByteArray)), this, SLOT(serverData(QByteArray)));
	connect(thread, SIGNAL(pluginData(QByteArray)), this, SLOT(pluginData(QByteArray)));
	connect(thread, SIGNAL(finished()), thread, SLOT(deleteLater()) );
 
	thread->start();
}

void Connection::read()
{
	DataThread *thread = new DataThread(socket, this);
	
	connect(thread, SIGNAL(serverData(QByteArray)), this, SLOT(serverData(QByteArray)));
	connect(thread, SIGNAL(pluginData(QByteArray)), this, SLOT(pluginData(QByteArray)));
	connect(thread, SIGNAL(finished()), thread, SLOT(deleteLater()) );
	
	thread->start();
}

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DataThread run() function:

void DataThread::run()
{
	QByteArray array;
	array = socket->readAll();
 
	QDataStream streamOut(array);
	streamOut.setVersion(QDataStream::Qt_4_2);
 
	quint32 dataType;
	streamOut >> dataType;
	qDebug() << "data thread dataType" << dataType;
/*	QString name;
	streamOut >> name;
 
	qDebug() << name;*/
 
	if (dataType == Data::ServerData)
		emit serverData(array);
	if (dataType == Data::PluginData)
		emit pluginData(array);
}

void DataThread::run()
{
	QByteArray array;
	array = socket->readAll();
	
	QDataStream streamOut(array);
	streamOut.setVersion(QDataStream::Qt_4_2);
	
	quint32 dataType;
	streamOut >> dataType;
	qDebug() << "data thread dataType" << dataType;
/*	QString name;
	streamOut >> name;
	
	qDebug() << name;*/
	
	if (dataType == Data::ServerData)
		emit serverData(array);
	if (dataType == Data::PluginData)
		emit pluginData(array);
}

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pluginData signal of DataThread is connected to pluginData slot. In this slot I want to read plugin name which was written in plugin function.

void Connection::pluginData(QByteArray array)
{
	QDataStream streamOut(array);
	streamOut.setVersion(QDataStream::Qt_4_2);
 
	QString name;
	streamIn >> name;
 
	qDebug() << name;
}

void Connection::pluginData(QByteArray array)
{
	QDataStream streamOut(array);
	streamOut.setVersion(QDataStream::Qt_4_2);
	
	QString name;
	streamIn >> name;
	
	qDebug() << name;
}

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qDebug() << name gives me nothing, null string but I have no idea why. When I tray to read plugin name in thread class before returning array it works. Whats wrong?

Sorry about me english.

[Misenko]

Please. Nobody knows whats wrong?