Artem Bilan bdcb856a90 Revise subscribed state in the FluxMessageChannel ...

The `Sinks.Many<Boolean> subscribedSignal` is a bit of overhead in the logic.

* Use `Mono.fromCallable(this.sink::currentSubscriberCount)` instead for `delaySubscription()`
when we perform `subscribeTo(Publisher)`

**Auto-cherry-pick to `6.3.x` & `6.2.x`**

2024-06-25 14:47:12 -04:00

..

src

Revise subscribed state in the FluxMessageChannel

2024-06-25 14:47:12 -04:00