#include <qdatastream.h>#include <qdatetime.h>#include <cstdlib>using namespace std;#include "clientsocket.h"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))            return;        in >> blockSize;    }    if (bytesAvailable() < blockSize)        return;    Q_UINT8 requestType;    QString from;    QString to;    QDate date;    QTime time;    Q_UINT8 flag;    in >> requestType;    if (requestType == 'S') {        in >> from >> to >> date >> time >> flag;        srand(time.hour() * 60 + time.minute());        int numTrips = rand() % 8;        for (int i = 0; i < numTrips; ++i)            generateRandomTrip(from, to, date, time);        QDataStream out(this);        out << (Q_UINT16)0xFFFF;    }    close();    if (state() == Idle)        deleteLater();}void ClientSocket::generateRandomTrip(const QString &,        const QString &, const QDate &date, const QTime &time){    QByteArray block;    QDataStream out(block, IO_WriteOnly);    out.setVersion(5);    Q_UINT16 duration = rand() % 200;    out << (Q_UINT16)0 << date << time << duration        << (Q_UINT8)1 << QString("InterCity");    out.device()->at(0);    out << (Q_UINT16)(block.size() - sizeof(Q_UINT16));    writeBlock(block.data(), block.size());}