XP/Qt 4.1.4 qhttp

[incapacitant]

I have the following code that usually works fine :

//*****************************************************************************
void ApplicationWindow::creditUrl()
//*****************************************************************************
{
  // target url
  QUrl url("http://api.smsbox.fr/index.php?");
  url.addQueryItem("login", iniGet( "Login" ));
  url.addQueryItem("pass", iniGet( "Password" ));
  url.addQueryItem("action", iniGet( "Action" )); 
 
  http = new QHttp(this);
  connect(http, SIGNAL(done(bool)), this, SLOT(defineSMSCredit(bool)));
 
  // remember to set the host
  http->setHost(url.host());
 
  // the resulting data will be stored in the buffer
  buffer = new QBuffer(this);
  http->get(url.toString(), buffer);
 
}

//*****************************************************************************
void ApplicationWindow::creditUrl()
//*****************************************************************************
{
  // target url
  QUrl url("http://api.smsbox.fr/index.php?");
  url.addQueryItem("login", iniGet( "Login" ));
  url.addQueryItem("pass", iniGet( "Password" ));
  url.addQueryItem("action", iniGet( "Action" )); 
       
  http = new QHttp(this);
  connect(http, SIGNAL(done(bool)), this, SLOT(defineSMSCredit(bool)));

  // remember to set the host
  http->setHost(url.host());
       
  // the resulting data will be stored in the buffer
  buffer = new QBuffer(this);
  http->get(url.toString(), buffer);

}

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But right now I am on a friend's network that is loaded with BitTorrents.
And now here the program just goes away, leaving a useless TrayIcon icon that also goes away as soon as you hover on it.

Is there a sort of time out somewhere ?
I would have thought the connect would wait, whatever time it takes...
Firefox or IE do wait.

Any hint ?

[incapacitant]

I edited the code a bit (i was showing the wrong proc, but it is the same code, just a ditfferent outbound slot) to trace it a bit :

//*****************************************************************************
void ApplicationWindow::creditUrl()
//*****************************************************************************
{
  // target url
     QMessageBox::warning( this, "creditUrl", "start" );
  QUrl url("http://api.smsbox.fr/index.php?");
  url.addQueryItem("login", iniGet( "Login" ));
  url.addQueryItem("pass", iniGet( "Password" ));
  url.addQueryItem("action", iniGet( "Action" )); 
 
  http = new QHttp(this);
     QMessageBox::warning( this, "creditUrl", "connect" );
  connect(http, SIGNAL(done(bool)), this, SLOT(defineSMSCredit(bool)));
 
  // remember to set the host
  http->setHost(url.host());
 
  // the resulting data will be stored in the buffer
  buffer = new QBuffer(this);
     QMessageBox::warning( this, "creditUrl", "get" );
  http->get(url.toString(), buffer);
 
}

//*****************************************************************************
void ApplicationWindow::creditUrl()
//*****************************************************************************
{
  // target url
     QMessageBox::warning( this, "creditUrl", "start" );
  QUrl url("http://api.smsbox.fr/index.php?");
  url.addQueryItem("login", iniGet( "Login" ));
  url.addQueryItem("pass", iniGet( "Password" ));
  url.addQueryItem("action", iniGet( "Action" )); 
       
  http = new QHttp(this);
     QMessageBox::warning( this, "creditUrl", "connect" );
  connect(http, SIGNAL(done(bool)), this, SLOT(defineSMSCredit(bool)));

  // remember to set the host
  http->setHost(url.host());
       
  // the resulting data will be stored in the buffer
  buffer = new QBuffer(this);
     QMessageBox::warning( this, "creditUrl", "get" );
  http->get(url.toString(), buffer);

}

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The the slot proc :

//*****************************************************************************
void ApplicationWindow::defineSMSCredit( bool error )
//*****************************************************************************
{ 
    QMessageBox::warning( this, "defineSMSCredit", "before handle" );
  // handle http reply for credit request 
  handleSMSCredit( error );
    QMessageBox::warning( this, "defineSMSCredit", "after handle" );
etc...

//*****************************************************************************
void ApplicationWindow::defineSMSCredit( bool error )
//*****************************************************************************
{ 
    QMessageBox::warning( this, "defineSMSCredit", "before handle" );
  // handle http reply for credit request 
  handleSMSCredit( error );
    QMessageBox::warning( this, "defineSMSCredit", "after handle" );
etc...

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When I run that I see:
start
connect
before handle
and then it goes away...

[jacek]

When I run that I see:
start
connect
before handle
and then it goes away...

Well... it works until handleSMSCredit() is invoked. What does it do?

[incapacitant]

Yes, it does this :

//*****************************************************************************
void ApplicationWindow::handleSMSCredit( bool error )
//*****************************************************************************
{
  // by default there is no credit, but qsLCredit and intCredit should be
  // defini. This is in the case where the credit cannot be retrieved
  // after a http problem (like no connection to server)
  // "Bidon 0" ensures intCredit is defaulted to 0, and qslCredit|1] = "0"
     QMessageBox::warning( this, "handleSMSCredit", "start" );
  qsCredit = "Bidon 0";
  qslCredit = qsCredit.split( " " );
  intCredit = qslCredit[1].toInt( &ok, 10 );
 
  // si pas d'erreur http
  if ( !error ) {
     QMessageBox::warning( this, "handleSMSCredit", "no error" );
    // get credit info returned by http slot
    qsCredit = QString(buffer->data());
     QMessageBox::warning( this, "handleSMSCredit", qsCredit );
 
    // parse buffer
    qslCredit = qsCredit.split( " " );
     QMessageBox::warning( this, "handleSMSCredit", "parse buffer data" );
 
    // check what server replied (ie "ERROR xx" or "CREDIT xxx")
    TxtError = iniGet( "TxtError1" );
 
     QMessageBox::warning( this, "handleSMSCredit", qslCredit[0] );

//*****************************************************************************
void ApplicationWindow::handleSMSCredit( bool error )
//*****************************************************************************
{
  // by default there is no credit, but qsLCredit and intCredit should be
  // defini. This is in the case where the credit cannot be retrieved
  // after a http problem (like no connection to server)
  // "Bidon 0" ensures intCredit is defaulted to 0, and qslCredit|1] = "0"
     QMessageBox::warning( this, "handleSMSCredit", "start" );
  qsCredit = "Bidon 0";
  qslCredit = qsCredit.split( " " );
  intCredit = qslCredit[1].toInt( &ok, 10 );
  
  // si pas d'erreur http
  if ( !error ) {
     QMessageBox::warning( this, "handleSMSCredit", "no error" );
    // get credit info returned by http slot
    qsCredit = QString(buffer->data());
     QMessageBox::warning( this, "handleSMSCredit", qsCredit );
    
    // parse buffer
    qslCredit = qsCredit.split( " " );
     QMessageBox::warning( this, "handleSMSCredit", "parse buffer data" );
    
    // check what server replied (ie "ERROR xx" or "CREDIT xxx")
    TxtError = iniGet( "TxtError1" );
    
     QMessageBox::warning( this, "handleSMSCredit", qslCredit[0] );

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When I run I see:
Credit...
start
connect
DefineSMS...
before handle
handleSMLSCredit
start
no error
a "get" appears and disapears in less than half a second
shows the value of qsCredit as empty
parse buffer data
a new "get" appears and disapears in less than half a second
show the value of qslCredit[0] as empty (as qsCredit)

So I paused the torrents to see. But somehow this application used to work.
And with the torrents paused it won't : qsCredit is returned empty !

It is a programming issue, because the previous version works despite the torrents.
I must have done something while trying to improve things and now I will investigate
what I did between the 2 versions.
Qt works, my new code does not.

Thanks