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// SPDX-License-Identifier: GPL-2.0+
/*******************************************************************************
* QtMips - MIPS 32-bit Architecture Subset Simulator
*
* Implemented to support following courses:
*
* B35APO - Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b35apo
*
* B4M35PAP - Advanced Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
*
* Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
* Copyright (c) 2019 Pavel Pisa <pisa@cmp.felk.cvut.cz>
*
* Faculty of Electrical Engineering (http://www.fel.cvut.cz)
* Czech Technical University (http://www.cvut.cz/)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
******************************************************************************/
#ifndef CHARIOHANDLER_H
#define CHARIOHANDLER_H
#include <QObject>
#include <QIODevice>
#include <QSet>
class CharIOHandler : public QIODevice
{
Q_OBJECT
using Super = QIODevice;
public:
explicit CharIOHandler(QIODevice *iodev, QObject *parent = nullptr);
virtual ~CharIOHandler() override;
public slots:
void writeByte(unsigned int data);
void writeByte(int fd, unsigned int data);
void readBytePoll(int fd, unsigned int &data, bool &available);
public:
void insertFd(const int &fd);
void removeFd(const int &fd);
virtual bool isSequential() const override;
virtual bool open(OpenMode mode) override;
virtual void close() override;
virtual qint64 pos() const override;
virtual qint64 size() const override;
virtual bool seek(qint64 pos) override;
virtual bool atEnd() const override;
virtual bool reset() override;
virtual qint64 bytesAvailable() const override;
virtual qint64 bytesToWrite() const override;
virtual bool canReadLine() const override;
virtual bool waitForReadyRead(int msecs) override;
virtual bool waitForBytesWritten(int msecs) override;
protected:
virtual qint64 readData(char *data, qint64 maxSize) override;
virtual qint64 readLineData(char *data, qint64 maxSize) override;
virtual qint64 writeData(const char *data, qint64 maxSize) override;
private:
QIODevice *iodev;
bool fd_specific;
QSet<int> fd_list;
};
#endif // CHARIOHANDLER_H
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