How to clean signals in thread.

sergboec

Yep, sounds strange, let me explain.
I know that if I connect signal and slot between threads, it means that by default first thread will post some event to receiver thread event queue.
All i want is to know is there any king of mechanism i can remove all events from thread's event queue, generated by particular emit signal in other thread.

SGaist

Hi,

AFAIK, it's not possible.

Out of curiosity, why would you need that feature ?

kshegunov

@sergboec
Probably you could hack around with installing an event filter and intercepting the QEvent::MetaCall events, but(!) you shouldn't do that in the first place.

sergboec

@SGaist i got system that based on qt plugin system.
Each plugin works asynchronously in his thread.
I am using signals as communication mechanism between plugins.
Some event from one plugin is received in second plugin and changes internal state of the second plugin.
But while i processing changing internal state, some signals already arrived to second plugin. I don't need them in state i had just switched to.

SGaist

Then why not just ignore them if you're in a given state ?

sergboec

@SGaist it is a good option.
but for now there is no difference between signals regardless of the state

SGaist

What do you mean by "no difference" ?