GB.CheckPost | Calls deferred routines if needed. |
GB.Post | Post a deffered routine. |
The interpreter or the components sometime need to deffer the execution of a piece of code, because executing it immediately would be dangerous. The GB.Post routine is used for posting a deffered routine.
As the deffered piece of code is executed at the next event loop iteration, components that implement the event loop must use the GB.CheckPost routine.