QRemoteObject cannot acquire from Android service

Marek

Hi all

Basically I'm following this example: Android service example
I have rewritten this using widgets, but I cannot acquire remote object using QRemoteObject

adb logcat says that service is running and remoting is enabled

D/libservice.so( 8556): myapp-service.cpp:12 (MyAppSevice::MyAppSevice(QObject*)): qwerty enabled remoting
D/libservice.so( 8556): myapp-service.cpp:33 (void MyAppSevice::timerTimeout()):  qwerty srcNode lastError: QRemoteObjectNode::ErrorCode(NoError)  count: 0
D/libservice.so( 8556): myapp-service.cpp:33 (void MyAppSevice::timerTimeout()):  qwerty srcNode lastError: QRemoteObjectNode::ErrorCode(NoError)  count: 1
D/libservice.so( 8556): myapp-service.cpp:33 (void MyAppSevice::timerTimeout()):  qwerty srcNode lastError: QRemoteObjectNode::ErrorCode(NoError)  count: 2
D/libservice.so( 8556): myapp-service.cpp:33 (void MyAppSevice::timerTimeout()):  qwerty srcNode lastError: QRemoteObjectNode::ErrorCode(NoError)  count: 3

but application debug says I'm connected to node, but cannot acquire PingPongReplica

D/OpenGLRenderer( 8515): Enabling debug mode 0
D/libmyapp.so( 8515): myapp.cpp:27 (MyApp::MyApp(QWidget*)): connected
D/libmyapp.so( 8515): myapp.cpp:29 (MyApp::MyApp(QWidget*)):  instances: ()
D/libmyapp.so( 8515): myapp.cpp:35 (MyApp::MyApp(QWidget*)): NOT acquired
F/libmyapp.so( 8515): (null):0 ((null)): ASSERT: "res" in file myapp.cpp, line 37

If I uncomment part of server.cpp I can acquire PingPongReplica inside service - just like connect to myself?

What can be wrong, some hint please.

Best Regards
Marek

//pingpong.h
#include <QtCore>
#include "rep_pingpong_source.h"

class PingPong: public PingPongSource {
public:
    PingPong(QObject *parent=0);
public slots:
    void ping(const QString &msg) override;
signals:
    void pong(const QString &msg);
private slots:
private:
};

//pingpong.cpp
PingPong::PingPong(QObject *parent):PingPongSource(parent) {

}
void PingPong::ping(const QString &msg) {
    emit QString("%1 reply from server").arg(msg);
}

//server.h
class MyAppSevice: public QObject {
    Q_OBJECT
public:
    MyAppSevice(QObject *parent=0);
public slots:
signals:
private slots:
    void timerTimeout();
private:
    QRemoteObjectHost *srcNode;
    QTimer              *timer;
    int                 count;

    PingPongReplica *rep2;
    QRemoteObjectNode *repNode;
};

//server.cpp
MyAppSevice::MyAppSevice(QObject *parent):QObject(parent) {
    count=0;
    PingPong pingPongServer;

    srcNode=new QRemoteObjectHost(QUrl(QStringLiteral("local:replica")));
    if(srcNode->enableRemoting(&pingPongServer)) {
        qDebug()<<"qwerty enabled remoting";
     /*   repNode=new QRemoteObjectNode(QUrl(QStringLiteral("local:replica")));
        qDebug()<<" instances:"<<repNode->instances<PingPongReplica>();
        rep2=repNode->acquire<PingPongReplica>();
        bool res = rep2->waitForSource();
        if(res) {
            qDebug()<<" acquired qwerty";
        }
        else {
            qDebug()<<" not acquired qwerty";
        }*/
    }
    else {
        qDebug()<<"not enabled qwerty";
    }
    timer=new QTimer(this);
    timer->setInterval(1000);
    connect(timer,SIGNAL(timeout()),this,SLOT(timerTimeout()));
    timer->start();
}
void AppSevice::timerTimeout() {
    qDebug()<<" qwerty srcNode lastError:"<<srcNode->lastError()<<" count:"<<count;
    count++;
}

//client.h
class MyApp: public QMainWindow {
    Q_OBJECT
public:
    MyApp(QWidget *parent=0);
signals:
private slots:
private:
    Ui::MyApp  *ui;
    PingPongReplica *rep2;
    QRemoteObjectNode *repNode;
};

//client.cpp
MyApp::MyApp(QWidget *parent) :QMainWindow(parent),ui(new Ui::MyApp) {
    ui->setupUi(this);

    repNode=new QRemoteObjectNode(this);
    if(!repNode->connectToNode(QUrl(QStringLiteral("local:replica")))) {
        qDebug()<<"NOT connected";
    } else {
        qDebug()<<"connected";
    }
    qDebug()<<" instances:"<<repNode->instances<PingPongReplica>();
    rep2=repNode->acquire<PingPongReplica>();
    bool res = rep2->waitForSource();
    if(res) {
        qDebug()<<"acquired";
    } else {
        qDebug()<<"NOT acquired";
    }
    Q_ASSERT(res);
};

Marek

Ok, its my fault,
in server.cpp PingPongServer goes out of scope and thats why I couldn't acquire.

Marek

//pingpong.h shouldn't also have signals defined, which are virtual and cannot have override keyword

class PingPong: public PingPongSource {
public:
    PingPong(QObject *parent=0);
public slots:
    void ping(const QString &msg) override;
signals:
private slots:
private:
};