void TestCaller::callMegaString()
{
QMutexLocker locker(&mutex);
qDebug() << "Iteration!" << this << thread() << QThread::currentThread();
ReturnValue ret = largeValues(megaString);
QString value = ret.isError() ? ret.errString() : ret.toString();
if (value != megaString)
qFatal(qPrintable(QString("ERROR: Malformed megastring: %1 (%2)").arg(value).arg(ret.errString())));
}
/**
* This function does all the dirty qt stuff to call any given signal or slot manually. This function is for internal use only
* @sa callCallback emitSignal
* @param sig Signature of the function to be called
* @param args Arguments list for the function
* @return Returns the ReturnValue from the function, or an error.
*/
ReturnValue ProxyBase::callMetacall(Signature sig, Arguments args)
{
// Test to make sure the argument list matches the signature... this is important else the void*'s will contain the wrong types (breaking everything)
QString test = sig.test(args);
if (!test.isEmpty())
{
return(ReturnValue(2, test));
}
// Create the return value
ReturnValue ret;
QList<QByteArray> bagarbageCollector;
QList<QSharedPointer<const char*> > garbageCollector;
// Create an array of void pointers and place the QVariants into it... I don't know why this works, but it does.
void *param[] = {(void *)&ret, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL};
for (int i = 0; i < sig.numArgs(); i++)
{
if (sig.arg(i) == "char*" || sig.arg(i) == "const char*")
{
garbageCollector.append(QSharedPointer<const char*>(new const char*));
bagarbageCollector.append(args[i].toString().toLocal8Bit());
*garbageCollector.last().data() = bagarbageCollector.last().constData();
param[i+1] = garbageCollector.last().data();
}
else if (sig.arg(i) != "QVariant" && args.at(i).type() == QVariant::UserType)
{
param[i+1] = args[i].data();
}
else
{
param[i+1] = static_cast<void*>(&args[i]);
}
}
// Check the make sure the signature is a valid string...
if (sig.name().isEmpty())
return(ReturnValue(3, "Failed to call " + sig.toString() + ": Sig is not valid (" + sig.name() + ")"));
// Get the ID number of the function, if it fails normalize the string and try again...
int id = metaObject()->indexOfMethod(qPrintable(sig.toString()));
if (id < 0)
id = metaObject()->indexOfMethod(QMetaObject::normalizedSignature(qPrintable(sig.toString())).constData()); //try again
if (id < 0) // failed to find the id number of the function
return(ReturnValue(4, "Failed to call " + sig.toString() + ": Could not find the index of the slot (id=" + QString("%1)").arg(id)));
// the return from qt_metacall SHOULD be negative if the slot was found...
int retid = qt_metacall(QMetaObject::InvokeMetaMethod, id, param);
if (retid > 0) // return error
return(ReturnValue(5, "Failed to call " + sig.toString() + ": Failed to find it in metacall (" + QString("id=%1 retid= %2 ret=%3)").arg(id).arg(retid).arg(ret.toString())));
// return the return value. It's data was filled via the *param[] object...
return(ret);
}
