On Thursday, 22 July 2021 11:17:11 PDT Tony V E via Std-Proposals wrote:
> Signals-slots are fundamentally difficult/impossible without a central
> message pump (like Qt has), or maybe executors.

The cross-thread slot-delivery of a signal emission, agreed.

For immediate execution, no, you don't need a message pump. At that point, the
signal-slot mechanism is basically an M:N callback mechanism. We could have
this portion first.

-- 
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
   Software Architect - Intel DPG Cloud Engineering