Hello,

I want to distribute requests from a system to a limited number of threads. I can run a request on the thread using signals/slots or QMetaObject::invokeMethod function. But I also want to buffer the incoming requests for running them later when a thread becomes available.

For example I have a function call like:

Qt Code: 
  1. QMetaObject::invokeMethod(worker, "queryCustomCommand", Q_ARG( qint64   , trans ) ,Q_ARG( QString, sql ));
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or :
Qt Code: 
  1. QMetaObject::invokeMethod(worker, "getTagLastChangeTime", Q_ARG( pQueryValueRequest_t ,req ) ,Q_ARG( qint64, trans ));
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These should be buffered in an appropriate way.
I tried to create a list of struct representing the method and arguments. But I couldnt find a way to represent the Q_ARG vars in the struct:

Qt Code: 
  1. struct StackItem{
  2.     char* methodName;
  3.     QList<QGenericArgument> argList;
  4. };
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Here I couldnt form the "argList" element.(Compile errors, etc...)
What is the right way of queuing these function calls?

Thanks in advance,
Yigit