mirror of
https://github.com/f4exb/sdrangel.git
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323 lines
12 KiB
C++
323 lines
12 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2020 Jon Beniston, M7RCE //
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// Copyright (C) 2020 Edouard Griffiths, F4EXB //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <algorithm>
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#include <random>
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#include <QDebug>
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#include <QTcpServer>
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#include <QTcpSocket>
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#include <QNetworkDatagram>
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#include <QEventLoop>
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#include <QTimer>
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#include <QRegExp>
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#include "util/ax25.h"
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#include "pertester.h"
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#include "pertesterworker.h"
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#include "pertesterreport.h"
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MESSAGE_CLASS_DEFINITION(PERTesterWorker::MsgConfigurePERTesterWorker, Message)
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MESSAGE_CLASS_DEFINITION(PERTesterReport::MsgReportStats, Message)
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PERTesterWorker::PERTesterWorker() :
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m_msgQueueToFeature(nullptr),
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m_msgQueueToGUI(nullptr),
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m_rxUDPSocket(nullptr),
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m_txUDPSocket(this),
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m_txTimer(this),
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m_tx(0),
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m_rxMatched(0),
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m_rxUnmatched(0)
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{
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connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
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}
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PERTesterWorker::~PERTesterWorker()
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{
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stopWork();
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closeUDP();
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disconnect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
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m_inputMessageQueue.clear();
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}
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void PERTesterWorker::startWork()
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{
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qDebug() << "PERTesterWorker::startWork";
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QMutexLocker mutexLocker(&m_mutex);
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openUDP(m_settings);
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// Automatically restart if previous run had finished, otherwise continue
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if (m_tx >= m_settings.m_packetCount)
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resetStats();
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connect(&m_txTimer, SIGNAL(timeout()), this, SLOT(tx()));
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m_txTimer.start(m_settings.m_interval * 1000.0);
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// Handle any messages already on the queue
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handleInputMessages();
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}
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void PERTesterWorker::stopWork()
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{
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qDebug() << "PERTesterWorker::stopWork";
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m_txTimer.stop();
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closeUDP();
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disconnect(&m_txTimer, SIGNAL(timeout()), this, SLOT(tx()));
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}
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void PERTesterWorker::handleInputMessages()
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{
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Message* message;
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while ((message = m_inputMessageQueue.pop()) != nullptr)
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{
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if (handleMessage(*message)) {
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delete message;
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}
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}
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}
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void PERTesterWorker::resetStats()
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{
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m_tx = 0;
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m_rxMatched = 0;
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m_rxUnmatched = 0;
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if (getMessageQueueToGUI())
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getMessageQueueToGUI()->push(PERTesterReport::MsgReportStats::create(m_tx, m_rxMatched, m_rxUnmatched));
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}
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bool PERTesterWorker::handleMessage(const Message& cmd)
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{
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if (MsgConfigurePERTesterWorker::match(cmd))
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{
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QMutexLocker mutexLocker(&m_mutex);
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MsgConfigurePERTesterWorker& cfg = (MsgConfigurePERTesterWorker&) cmd;
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applySettings(cfg.getSettings(), cfg.getSettingsKeys(), cfg.getForce());
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return true;
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}
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else if (PERTester::MsgResetStats::match(cmd))
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{
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resetStats();
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return true;
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}
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else
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{
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return false;
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}
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}
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void PERTesterWorker::applySettings(const PERTesterSettings& settings, const QList<QString>& settingsKeys, bool force)
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{
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qDebug() << "PERTesterWorker::applySettings:" << settings.getDebugString(settingsKeys, force)
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<< " force: " << force;
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// if ( (settings.m_rxUDPAddress != m_settings.m_rxUDPAddress)
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// || (settings.m_rxUDPPort != m_settings.m_rxUDPPort)
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// || force)
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if (settingsKeys.contains("rxUDPAddress")
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|| settingsKeys.contains("rxUDPPort")
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|| force)
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{
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openUDP(settings);
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}
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if (settingsKeys.contains("interval") || force) {
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m_txTimer.setInterval(settings.m_interval * 1000.0);
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}
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if (force) {
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m_settings = settings;
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} else {
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m_settings.applySettings(settingsKeys, settings);
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}
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}
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void PERTesterWorker::openUDP(const PERTesterSettings& settings)
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{
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closeUDP();
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m_rxUDPSocket = new QUdpSocket();
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if (!m_rxUDPSocket->bind(QHostAddress(settings.m_rxUDPAddress), settings.m_rxUDPPort))
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{
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qCritical() << "PERTesterWorker::openUDP: Failed to bind to port " << settings.m_rxUDPAddress << ":" << settings.m_rxUDPPort << ". Error: " << m_rxUDPSocket->error();
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if (m_msgQueueToFeature)
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m_msgQueueToFeature->push(PERTester::MsgReportWorker::create(QString("Failed to bind to port %1:%2 - %3").arg(settings.m_rxUDPAddress).arg(settings.m_rxUDPPort).arg(m_rxUDPSocket->error())));
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}
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else
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qDebug() << "PERTesterWorker::openUDP: Listening on port " << settings.m_rxUDPAddress << ":" << settings.m_rxUDPPort << ".";
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connect(m_rxUDPSocket, &QUdpSocket::readyRead, this, &PERTesterWorker::rx);
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}
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void PERTesterWorker::closeUDP()
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{
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if (m_rxUDPSocket != nullptr)
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{
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qDebug() << "PERTesterWorker::closeUDP: Closing port " << m_settings.m_rxUDPAddress << ":" << m_settings.m_rxUDPPort << ".";
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disconnect(m_rxUDPSocket, &QUdpSocket::readyRead, this, &PERTesterWorker::rx);
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delete m_rxUDPSocket;
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m_rxUDPSocket = nullptr;
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}
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}
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void PERTesterWorker::rx()
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{
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while (m_rxUDPSocket->hasPendingDatagrams())
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{
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QNetworkDatagram datagram = m_rxUDPSocket->receiveDatagram();
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QByteArray packet = datagram.data();
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// Ignore header and CRC, if requested
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packet = packet.mid(m_settings.m_ignoreLeadingBytes, packet.size() - m_settings.m_ignoreLeadingBytes - m_settings.m_ignoreTrailingBytes);
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// Remove from list of transmitted packets
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int i;
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for (i = 0; i < m_txPackets.size(); i++)
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{
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if (packet == m_txPackets[i])
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{
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m_rxMatched++;
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m_txPackets.removeAt(i);
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break;
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}
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}
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if (i == m_txPackets.size())
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{
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qDebug() << "PERTesterWorker::rx: Received packet that was not transmitted: " << packet.toHex();
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m_rxUnmatched++;
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}
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}
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if (getMessageQueueToGUI())
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getMessageQueueToGUI()->push(PERTesterReport::MsgReportStats::create(m_tx, m_rxMatched, m_rxUnmatched));
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}
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void PERTesterWorker::tx()
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{
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QRegExp ax25Dst("^%\\{ax25\\.dst=([A-Za-z0-9-]+)\\}");
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QRegExp ax25Src("^%\\{ax25\\.src=([A-Za-z0-9-]+)\\}");
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QRegExp num("^%\\{num\\}");
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QRegExp data("^%\\{data=([0-9]+),([0-9]+)\\}");
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QRegExp hex("^(0x)?([0-9a-fA-F]?[0-9a-fA-F])");
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QByteArray bytes;
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int pos = 0;
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while (pos < m_settings.m_packet.size())
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{
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if (m_settings.m_packet[pos] == '%')
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{
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if (ax25Dst.indexIn(m_settings.m_packet, pos, QRegExp::CaretAtOffset) != -1)
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{
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// AX.25 destination callsign & SSID
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QString address = ax25Dst.capturedTexts()[1];
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bytes.append(AX25Packet::encodeAddress(address));
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pos += ax25Dst.matchedLength();
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}
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else if (ax25Src.indexIn(m_settings.m_packet, pos, QRegExp::CaretAtOffset) != -1)
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{
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// AX.25 source callsign & SSID
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QString address = ax25Src.capturedTexts()[1];
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bytes.append(AX25Packet::encodeAddress(address, 1));
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pos += ax25Src.matchedLength();
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}
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else if (num.indexIn(m_settings.m_packet, pos, QRegExp::CaretAtOffset) != -1)
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{
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// Big endian packet number
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bytes.append((m_tx >> 24) & 0xff);
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bytes.append((m_tx >> 16) & 0xff);
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bytes.append((m_tx >> 8) & 0xff);
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bytes.append(m_tx & 0xff);
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pos += num.matchedLength();
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}
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else if (data.indexIn(m_settings.m_packet, pos, QRegExp::CaretAtOffset) != -1)
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{
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// Constrained random number of random bytes
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int minBytes = data.capturedTexts()[1].toInt();
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int maxBytes = data.capturedTexts()[2].toInt();
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std::random_device rd;
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std::mt19937 gen(rd());
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std::uniform_int_distribution<> distr0(minBytes, maxBytes);
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std::uniform_int_distribution<> distr1(0, 255);
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int count = distr0(gen);
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for (int i = 0; i < count; i++)
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bytes.append(distr1(gen));
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pos += data.matchedLength();
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}
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else
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{
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qWarning() << "PERTester: Unsupported substitution in packet: pos=" << pos << " in " << m_settings.m_packet;
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break;
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}
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}
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else if (m_settings.m_packet[pos] == '\"')
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{
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// ASCII string in double quotes
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int startIdx = pos + 1;
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int endQuoteIdx = m_settings.m_packet.indexOf('\"', startIdx);
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if (endQuoteIdx != -1)
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{
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int len = endQuoteIdx - startIdx;
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QString string = m_settings.m_packet.mid(startIdx, len);
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bytes.append(string.toLocal8Bit());
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pos = endQuoteIdx + 1;
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}
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else
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{
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qWarning() << "PERTester: Unterminated string: pos=" << pos << " in " << m_settings.m_packet;
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break;
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}
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}
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else if (hex.indexIn(m_settings.m_packet, pos, QRegExp::CaretAtOffset) != -1)
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{
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// Hex byte
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int value = hex.capturedTexts()[2].toInt(nullptr, 16);
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bytes.append(value);
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pos += hex.matchedLength();
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}
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else if ((m_settings.m_packet[pos] == ' ') || (m_settings.m_packet[pos] == ',') || (m_settings.m_packet[pos] == ':'))
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{
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pos++;
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}
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else
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{
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qWarning() << "PERTester: Unexpected character in packet: pos=" << pos << " in " << m_settings.m_packet;
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break;
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}
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}
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if ((pos >= m_settings.m_packet.size()) && (m_tx < m_settings.m_packetCount))
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{
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// Send packet via UDP
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m_txUDPSocket.writeDatagram(bytes.data(), bytes.size(), QHostAddress(m_settings.m_txUDPAddress), m_settings.m_txUDPPort);
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m_tx++;
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m_txPackets.append(bytes);
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if (getMessageQueueToGUI())
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getMessageQueueToGUI()->push(PERTesterReport::MsgReportStats::create(m_tx, m_rxMatched, m_rxUnmatched));
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}
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if (m_tx >= m_settings.m_packetCount)
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{
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// Test complete
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m_txTimer.stop();
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// Wait for a couple of seconds for the last packet to be received
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QTimer::singleShot(2000, this, &PERTesterWorker::testComplete);
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}
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}
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void PERTesterWorker::testComplete()
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{
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if (m_msgQueueToFeature != nullptr)
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m_msgQueueToFeature->push(PERTester::MsgReportWorker::create("Complete"));
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qDebug() << "PERTesterWorker::tx: Test complete";
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}
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