in pulsar-client-reactive-api/src/main/java/org/apache/pulsar/reactive/client/internal/api/InflightLimiter.java [231:236]
protected void hookOnSubscribe(Subscription subscription) {
if (this.state.compareAndSet(InflightLimiterSubscriberState.SUBSCRIBING,
InflightLimiterSubscriberState.SUBSCRIBED)) {
scheduleSubscribed(this);
}
}