qtforum.de

Code: Alles auswählen

#include "client.h"

cl::cl( QWidget *parent, const char *name)
	:	QPushButton( tr("Beenden"), parent, name )
{
	socket.connectToHost( "localhost", 1492 );
	blocksize = 0;
	
	QString fileName = QFileDialog::getOpenFileName();
	QFile file( fileName );
	if( !file.open( IO_ReadOnly ) )
	{
		QMessageBox::warning( this, tr( "Client - Error" ), tr( "Datei %1 konnte nicht zum Lesen geöffnet werden!" ).arg( file.name() ) );
		return;
	}
	QByteArray block;
	QDataStream out( block, IO_WriteOnly );
	out.setVersion( 5 );
	out << (Q_UINT16) 0 << file.readAll();
	out.device()->at( 0 );
	out << (Q_UINT16) ( block.size() - sizeof( Q_UINT16 ) );
	socket.writeBlock( block.data(), block.size() );
}

Code: Alles auswählen

#include "server.h"

sv::sv( QWidget *parent, const char *name )
	:	QServerSocket( 1492, 1, parent, name )
{
}

void sv::newConnection( int socketId )
{
	ClientSocket *socket = new ClientSocket( this );
	socket->setSocket( socketId );
}

ClientSocket::ClientSocket( QObject *parent, const char *name )
	:	QSocket( parent, name )
{
	connect( this, SIGNAL( readyRead() ),
				this, SLOT( readClient() ) );
	connect( this, SIGNAL( connectionClosed() ),
				this, SLOT( deleteLater() ) );
	connect( this, SIGNAL( delayedCloseFinished() ),
				this, SLOT( deleteLater() ) );
				
	blocksize = 0;
}

void ClientSocket::readClient()
{	
	QDataStream in( this );
	in.setVersion( 5 );
	if( blocksize == 0 )
	{
		if( bytesAvailable() < sizeof( Q_UINT16) )
		{
			QMessageBox::information( 0, tr( "Server - Error" ), tr( "bytesAvailable() < sizeof( Q_UINT16)" ) );
			return;
		}
		in >> blocksize;
		if( bytesAvailable() < blocksize )
		{
			QMessageBox::warning( 0, tr( "Server - Error" ), tr( "bytesAvailable() < blocksize" ) );
                        return;
		}
	}
	QByteArray block;
	in >> block;
	
	QString fileName = QFileDialog::getSaveFileName();
	QFile file( fileName );
	if( !file.open( IO_WriteOnly ) )
	{
		QMessageBox::warning( 0, tr( "Server - Error" ), tr( "Datei %1 konnte nicht zum Schreiben geöffnet werden!" ).arg( file.name() ) );
		return;
	}
	file.writeBlock( block );
	QMessageBox::information( 0, tr( "Server -Information" ), tr( "Schreiben von Datei\n%1\nbeendet." ).arg( file.name() ) );
	
	close();
	if( state() == Idle )
		deleteLater();
	
	blocksize = 0;
}