When's SLOT invoked ?

[phtdce]

My example:

void funcMain()
{
      QFtp * ftp = new QFtp(this);
      connect(ftp, SIGNAL(listInfo(QUrlInfo)),
                  this, SLOT(addToList(QUrlInfo)));
      .....
      ftp->list(); // emit signal listInfo();
      .....
      return;
}
 
void addToList(QUrlInfo info)
{
      //do something
}

void funcMain()
{
      QFtp * ftp = new QFtp(this);
      connect(ftp, SIGNAL(listInfo(QUrlInfo)),
                  this, SLOT(addToList(QUrlInfo)));
      .....
      ftp->list(); // emit signal listInfo();
      .....
      return;
}

void addToList(QUrlInfo info)
{
      //do something
}

To copy to clipboard, switch view to plain text mode 

When debug, SLOT(addToList) is invoked after funcMain() return. But i want addToList() to be invoked right after statement ftp->list() finish and before funcMain return , so what should i do ? And signal listInfo() is emitted while invoking ftp->list() or after ftp->list() finish or after funcMain() return ?