ScStw/app
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removed some unnecessary functions

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when connecting only the current timestamp is is requested -> connection speed doubled
This commit is contained in:
Dorian Zedler 2018-09-18 17:11:47 +02:00
parent 24f9dcbc6f
commit 2849dc0e3b
2 changed files with 74 additions and 162 deletions
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67
headers/buzzerconn.h
View file

@ -11,10 +11,10 @@
#include <QDateTime>
#include <QtDebug>
typedef struct strReturnData{
int status_code;
QString text;
}ReturnData_t;
//typedef struct strReturnData{
// int status_code;
// QString text;
//}ReturnData_t;
class BuzzerConn : public QObject
{
@ -27,39 +27,54 @@ class BuzzerConn : public QObject
public:
explicit BuzzerConn(QObject *parent = nullptr, QString ip = "http://192.168.4.1", int port = 80);
// values for the time calculation
double offset;
QList<double> latest_offsets;
double latest_button_pressed;
double starttime;
bool connected;
// double starttime;
// bool connected;
// values for the socket connection
int connection_progress;
QString ip;
int port;
int errors;
int errors_until_disconnect = 4;
// the current state
QString state;
// can be:
// - 'disconnected'
// - 'connecting'
// - 'connected'
private:
QNetworkAccessManager *networkManager;
QNetworkAccessManager *reloadNetworkManager;
QDateTime *date;
//to get the current time
QTcpSocket *socket;
//socket for communication with the extention
QStringList pending_commands;
//QSemaphore dataPipe(1);
//commands to send to the extention
//one command is being sent whenever refresh() is called
signals:
void triggered();
//is emitted when the device is triggered
void stateChanged();
//is emitted, when the connection state changes
void progressChanged();
void offsetChanged();
public slots:
ReturnData_t senddata(QNetworkAccessManager * NetMan, QUrl serviceUrl, int timeout);
//function to communicate with the buzzer
Q_INVOKABLE signed long sendCommand(QString command, int timeout);
//function to send commands to the sensor
//Can be:
@ -70,25 +85,33 @@ public slots:
//error codes:
//(-1) : timeout
//(-2) : invalid data was recieved
Q_INVOKABLE QList<double> gettimes(int timeout);
//function to get the times from the buzzer as a list with the normal network manager
Q_INVOKABLE QList<double> gettimes(int timeout, bool bothTimes = true);
//function to get the times from the buzzer as a list
//if bothTimes is true the current and the last-pressed timestamp will be returned
//else only the current timestamp will be returned
Q_INVOKABLE bool connect();
//function to connect to buzzer
Q_INVOKABLE bool calcoffset(QList<double> times);
//function that calculates the average time offset between the buzzer and the device
Q_INVOKABLE bool buzzer_triggered();
//function that checks ih the buzzer has been pushed since the last call of this function
Q_INVOKABLE bool start();
//syncs the buzzer and the base to make a start possible
Q_INVOKABLE double get(QString key);
//can return some things (offset, lastpressed, currtime, connection_progress, connected)
Q_INVOKABLE QString test();
Q_INVOKABLE bool refresh();
//refreshed the connection to the buzzer
Q_INVOKABLE void appendCommand(QString command);
void setIP(const QString &ipAdress);
Q_INVOKABLE bool refresh();
//- refreshes the connection to the buzzer
//- checks if it as triggered if it was 'triggered()' is emitted
//- sends one command from the pending commans list
Q_INVOKABLE void appendCommand(QString command);
//appends a command to the pending commnds list
// functions for the qml adapter
QString getIP() const;
void setIP(const QString &ipAdress);
QString getState() const;
void setState(QString newState);

157
sources/buzzerconn.cpp
View file

@ -19,14 +19,10 @@
BuzzerConn::BuzzerConn(QObject *parent, QString ip, int port) : QObject(parent)
{
this->networkManager = new QNetworkAccessManager();
this->reloadNetworkManager = new QNetworkAccessManager();
this->socket = new QTcpSocket();
this->date = new QDateTime;
this->latest_button_pressed = 0;
this->connected = false;
this->ip = ip;
this->port = port;
@ -41,7 +37,7 @@ bool BuzzerConn::connect()
setState("connecting");
//wait until the request has finished
//setup loop to wait until the connection has finished
QEventLoop loop;
QTimer timer;
@ -50,36 +46,37 @@ bool BuzzerConn::connect()
loop.connect(this->socket, SIGNAL(connected()), &loop, SLOT(quit()));
timer.start(3000);
//connect
this->socket->connectToHost(this->ip, this->port);
//wait for the connection to finish
loop.exec();
timer.stop();
if(timer.remainingTime() == 0){
//the time has been triggered -> timeout
setState("disconnected");
return(false);
}
QList<double> times = gettimes(2000);
qDebug() << times[0];
QList<double> times = gettimes(2000, true);
qDebug() << times;
if(times[0] == 200.0){
this->latest_button_pressed = times[2];
for(int i=0;i<=100;i++){
this->connection_progress = i;
emit this->progressChanged();
if(!calcoffset(this->gettimes(1000))){
if(!calcoffset(this->gettimes(1000, false))){
this->connection_progress = 100;
this->connected = false;
setState("disconnected");
return(false);
}
}
this->connected = true;
setState("connected");
return(true);
}
else{
this->connected = false;
setState("disconnected");
return(false);
}
@ -87,11 +84,11 @@ bool BuzzerConn::connect()
bool BuzzerConn::calcoffset(QList<double> times)
{
if(times.length() != 3){
if(times.length() != 2){
return(false);
}
if(times[0] == 200.0){
this->latest_button_pressed = times[2];
double offset = date->currentMSecsSinceEpoch() - times[1];
if(this->latest_offsets.length()>=100){
this->latest_offsets.removeFirst();
@ -113,40 +110,27 @@ bool BuzzerConn::calcoffset(QList<double> times)
}
}
QList<double> BuzzerConn::gettimes(int timeout)
QList<double> BuzzerConn::gettimes(int timeout, bool bothTimes)
{
// QList<double> times;
// ReturnData_t ret = senddata(this->networkManager, QUrl(this->ip), timeout);
// times.append(double(ret.status_code));
// if(ret.status_code == 200){
// ret.text.replace("\n","");
// ret.text.replace("\r","");
// QStringList times_cache = ret.text.split("<br>");
// times.append(times_cache[0].toDouble());
// times.append(times_cache[1].toDouble());
// return(times);
// }
// else{
// return(times);
// }
QList<double> times;
signed long ret;
ret = this->sendCommand("GET_TIMESTAMP", timeout);
qDebug() << timeout << bothTimes;
if(ret >= 0){
times.append(double(200));
times.append(double(ret));
if(bothTimes){
ret = this->sendCommand("GET_LASTPRESSED", timeout);
if(ret >= 0){
times.append(double(ret));
return(times);
}
else {
times[0] = ret;
}
}
}
else {
times.append(ret);
@ -155,55 +139,6 @@ QList<double> BuzzerConn::gettimes(int timeout)
}
bool BuzzerConn::buzzer_triggered()
{
if(!this->connected){
return(false);
}
if(pending_commands.length() > 0){
QString command = this->pending_commands.first();
signed long retval = this->sendCommand(command, 800);
if(retval > 0){
this->pending_commands.removeFirst();
}
}
QList<double> times = this->gettimes(1000);
if(times[0] == 200.0){
if(times[2] > this->latest_button_pressed){
this->latest_button_pressed = times[2];
return(true);
}
else {
return(false);
}
}
else{
//this->connected = false;
return(false);
}
}
bool BuzzerConn::start()
{
if(!this->connected){
return(false);
}
QList<double> times = this->gettimes(1000);
if(times[0] == 200.0 && this->connected){
this->latest_button_pressed = times[2];
return(true);
}
else{
this->connected = false;
return(false);
}
}
double BuzzerConn::get(QString key)
{
if(key == "offset"){
@ -219,7 +154,7 @@ double BuzzerConn::get(QString key)
return(this->connection_progress);
}
else if( key == "connected") {
if(this->connected){
if(this->state == "connected"){
return(1);
}
return(0);
@ -261,18 +196,13 @@ double BuzzerConn::getLastTriggered() const
return(this->latest_button_pressed);
}
QString BuzzerConn::test()
{
ReturnData_t ret = this->senddata(this->networkManager, QUrl("http://www.google.de"), 500);
return(ret.text);
}
bool BuzzerConn::refresh()
{
if(!this->connected){
if(this->state != "connected"){
return(false);
}
//send one of the pending commands
if(pending_commands.length() > 0){
QString command = this->pending_commands.first();
@ -296,54 +226,13 @@ bool BuzzerConn::refresh()
this->errors ++;
if(this->errors > errors_until_disconnect){
this->socket->disconnectFromHost();
this->connected = false;
this->setState("disconnected");
}
return(false);
}
}
ReturnData_t BuzzerConn::senddata(QNetworkAccessManager * NetMan, QUrl serviceUrl, int timeout)
{
ReturnData_t ret; //this is a custom type to store the returned data
// Call the webservice
QNetworkRequest request(serviceUrl);
request.setHeader(QNetworkRequest::ContentTypeHeader,
"application/x-www-form-urlencoded");
//send a POST request with the given url and data to the server
QUrlQuery pdata;
QNetworkReply* reply;
//wait until the request has finished
QEventLoop loop;
QTimer timer;
timer.setSingleShot(true);
loop.connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
loop.connect(NetMan, SIGNAL(finished(QNetworkReply*)), SLOT(quit()));
timer.start(timeout);
reply = NetMan->post(request, pdata.toString(QUrl::FullyEncoded).toUtf8());
loop.exec();
timer.stop();
//get the status code
QVariant status_code = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);
ret.status_code = status_code.toInt();
if(ret.status_code == 0){ //if the statuscode is zero, the connecion to the server was not possible
ret.status_code = 444;
}
//get the full text response
ret.text = QString::fromUtf8(reply->readAll());
//return the data
return(ret);
}
signed long BuzzerConn::sendCommand(QString command, int timeout){
//if there is any data in the storage, clear it
@ -379,9 +268,9 @@ signed long BuzzerConn::sendCommand(QString command, int timeout){
return(-1);
}
//if the data is not 4 bites long if is invalid -> clear and terminate
//if the data is not 4 bytes long it is invalid -> clear and terminate
if(this->socket->bytesAvailable() != 4){
this->socket->readAll();
qDebug() << this->socket->readAll();
return(-2);
}
long data = 0;