95 lines
2.4 KiB
C++
95 lines
2.4 KiB
C++
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#include "buzzerconn.h"
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BuzzerConn::BuzzerConn(QObject *parent) : QObject(parent)
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{
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this->networkManager = new QNetworkAccessManager();
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connect();
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}
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bool BuzzerConn::connect()
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{
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QList<double> times = gettimes();
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if(times[0] == 200.0){
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this->connected = true;
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calcoffset();
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calcoffset();
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calcoffset();
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return(true);
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}
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else{
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return(false);
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}
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}
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void BuzzerConn::calcoffset()
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{
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QList<double> times = gettimes();
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QDateTime * date = new QDateTime;
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double offset = date->currentMSecsSinceEpoch() - times[2];
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this->latest_offsets.append(offset);
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double mem = 0;
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for(int i=0;i<latest_offsets.length();i++){
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qDebug()<<latest_offsets[i];
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mem += latest_offsets[i];
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}
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this->offset = mem / double(latest_offsets.length());
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}
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QList<double> BuzzerConn::gettimes()
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{
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QList<double> times;
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ReturnData_t ret = senddata(QUrl("http://192.168.4.1"));
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times.append(double(ret.status_code));
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if(ret.status_code == 200){
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qDebug()<<ret.text;
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ret.text.replace("\n","");
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ret.text.replace("\r","");
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QStringList times_cache = ret.text.split("<br>");
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times.append(times_cache[0].toDouble());
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times.append(times_cache[1].toDouble());
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return(times);
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}
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else{
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return(times);
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}
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}
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ReturnData_t BuzzerConn::senddata(QUrl serviceUrl)
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{
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ReturnData_t ret; //this is a custom type to store the returned data
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// Call the webservice
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QNetworkRequest request(serviceUrl);
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request.setHeader(QNetworkRequest::ContentTypeHeader,
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"application/x-www-form-urlencoded");
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//set ssl configuration
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//send a POST request with the given url and data to the server
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QUrlQuery pdata;
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QNetworkReply* reply;
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reply = this->networkManager->post(request, pdata.toString(QUrl::FullyEncoded).toUtf8());
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//wait until the request has finished
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QEventLoop loop;
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loop.connect(this->networkManager, SIGNAL(finished(QNetworkReply*)), SLOT(quit()));
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loop.exec();
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//get the status code
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QVariant status_code = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);
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ret.status_code = status_code.toInt();
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if(ret.status_code == 0){ //if tehstatus code is zero, the connecion to the server was not possible
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ret.status_code = 444;
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}
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//get the full text response
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ret.text = QString::fromUtf8(reply->readAll());
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//return the data
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return(ret);
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}
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