1 files changed, 159 insertions, 0 deletions
diff --git a/qtmips_cli/chariohandler.cpp b/qtmips_cli/chariohandler.cpp
new file mode 100644
index 0000000..6d9c6e1
--- /dev/null
+++ b/qtmips_cli/chariohandler.cpp
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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.
+ *
+ ******************************************************************************/
+
+#include <chariohandler.h>
+
+CharIOHandler::CharIOHandler(QIODevice *iodev, QObject *parent) :
+               QIODevice(parent), fd_list() {
+    this->iodev = iodev;
+    if (!iodev->parent())
+        iodev->setParent(this);
+    fd_specific = false;
+    if (iodev->isOpen())
+        Super::open(iodev->openMode());
+    connect(iodev, &Super::aboutToClose, this, &CharIOHandler::aboutToClose);
+    connect(iodev, &Super::bytesWritten, this, &CharIOHandler::bytesWritten);
+    connect(iodev, &Super::channelBytesWritten, this, &CharIOHandler::channelBytesWritten);
+    connect(iodev, &Super::channelReadyRead, this, &CharIOHandler::channelReadyRead);
+    connect(iodev, &Super::readChannelFinished, this, &CharIOHandler::readChannelFinished);
+    connect(iodev, &Super::readyRead, this, &CharIOHandler::readyRead);
+}
+
+CharIOHandler::~CharIOHandler() {
+    if (iodev->parent() == this)
+        delete iodev;
+}
+
+void CharIOHandler::writeByte(unsigned int data) {
+    char ch = (char)data;
+    write(&ch, 1);
+}
+
+void CharIOHandler::writeByte(int fd, unsigned int data) {
+   if(!fd_specific || fd_list.contains(fd))
+       writeByte(data);
+}
+
+void CharIOHandler::readBytePoll(int fd, unsigned int &data, bool &available) {
+    char ch;
+    qint64 res;
+    if(!fd_specific || fd_list.contains(fd)) {
+        if (bytesAvailable() > 0) {
+            res = read(&ch, 1);
+            if (res > 0) {
+                data = ch & 0xff;
+                available = true;
+            }
+        }
+    }
+}
+
+void CharIOHandler::insertFd(const int &fd) {
+    fd_list.insert(fd);
+}
+
+void CharIOHandler::removeFd(const int &fd) {
+    fd_list.remove(fd);
+}
+
+bool CharIOHandler::isSequential() const {
+    return iodev->isSequential();
+}
+
+bool CharIOHandler::open(OpenMode mode) {
+    if (!iodev->open(mode)) {
+
+        return false;
+    }
+    Super::open(mode);
+    return true;
+}
+
+void CharIOHandler::close() {
+    Super::close();
+    iodev->close();
+}
+
+qint64 CharIOHandler::pos() const {
+    return iodev->pos();
+}
+
+qint64 CharIOHandler::size() const {
+    return iodev->size();
+}
+
+bool CharIOHandler::seek(qint64 pos) {
+    return iodev->seek(pos);
+}
+
+bool CharIOHandler::atEnd() const {
+    return iodev->atEnd();
+}
+
+bool CharIOHandler::reset() {
+    return iodev->reset();
+}
+
+qint64 CharIOHandler::bytesAvailable() const {
+    return iodev->bytesAvailable() + Super::bytesAvailable();
+}
+
+qint64 CharIOHandler::bytesToWrite() const {
+    return iodev->bytesToWrite() + Super::bytesToWrite();
+}
+
+bool CharIOHandler::canReadLine() const {
+    return iodev->canReadLine();
+}
+
+bool CharIOHandler::waitForReadyRead(int msecs) {
+    return iodev->waitForReadyRead(msecs);
+}
+
+bool CharIOHandler::waitForBytesWritten(int msecs) {
+    return iodev->waitForBytesWritten(msecs);
+}
+
+qint64 CharIOHandler::readData(char *data, qint64 maxSize) {
+    return iodev->read(data, maxSize);
+}
+
+qint64 CharIOHandler::readLineData(char *data, qint64 maxSize) {
+    return iodev->readLine(data, maxSize);
+}
+
+qint64 CharIOHandler::writeData(const char *data, qint64 maxSize) {
+    return iodev->write(data, maxSize);
+}