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95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
#include "pm3process.h"
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PM3Process::PM3Process(QThread* thread, QObject* parent): QProcess(parent)
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{
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moveToThread(thread);
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setProcessChannelMode(PM3Process::MergedChannels);
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isRequiringOutput=false;
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requiredOutput=new QString();
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serialListener=new QTimer(); // if using new QTimer(this), the debug output will show "Cannot create children for a parent that is in a different thread."
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serialListener->moveToThread(this->thread());// I've tried many ways to creat a QTimer instance, but all of the instances are in the main thread(UI thread), so I have to move it manually
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serialListener->setInterval(1000);
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serialListener->setTimerType(Qt::VeryCoarseTimer);
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connect(serialListener,&QTimer::timeout,this,&PM3Process::onTimeout);
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}
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void PM3Process::connectPM3(const QString path, const QString port)
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{
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setRequiringOutput(true);
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// using "-f" option to make the client output flushed after every print.
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start(path, QStringList()<<port<<"-f",QProcess::Unbuffered|QProcess::ReadWrite);
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if(waitForStarted(10000))
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{
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while(waitForReadyRead(1000))
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;
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setRequiringOutput(false);
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QString result = *requiredOutput;
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if(result.indexOf("os: ")!=-1)// make sure the PM3 is connected
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{
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result = result.mid(result.indexOf("os: "));
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result = result.left(result.indexOf("\r\n"));
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result = result.mid(3, result.lastIndexOf(" ") - 3);
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emit PM3StatedChanged(true,result);
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setSerialListener(port,true);
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}
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else
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kill();
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}
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}
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void PM3Process::setRequiringOutput(bool st)
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{
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isRequiringOutput=st;
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if(isRequiringOutput)
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requiredOutput->clear();
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}
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QByteArray PM3Process::readLine(qint64 maxlen)
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{
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QByteArray buff;
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buff=QProcess::readLine(maxlen);
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if(isRequiringOutput)
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requiredOutput->append(buff);
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return buff;
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}
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QString PM3Process::getRequiredOutput()
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{
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return *requiredOutput;
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}
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bool PM3Process::waitForReadyRead(int msecs)
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{
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return QProcess::waitForReadyRead(msecs);
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}
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void PM3Process::setSerialListener(const QString& name,bool state)
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{
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if(state)
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{
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portInfo=new QSerialPortInfo(name);
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serialListener->start();
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qDebug()<<serialListener->thread();
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}
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else
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{
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serialListener->stop();
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delete portInfo;
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}
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}
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void PM3Process::onTimeout()
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{
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qDebug()<<portInfo->isBusy();
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if(!portInfo->isBusy())
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{
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kill();
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emit PM3StatedChanged(false);
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setSerialListener("",false);
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}
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}
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void PM3Process::testThread()
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{
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qDebug()<<"PM3:"<<QThread::currentThread();
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}
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