keepAlive

Injects additional (configured) elements if upstream does not emit for a configured amount of time.

Signature

def keepAlive[U >: Out](maxIdle: FiniteDuration, injectedElem: () => U): Repr[U]

Injects additional (configured) elements if upstream does not emit for a configured amount of time.

emits when upstream emits an element or if the upstream was idle for the configured period

backpressures when downstream backpressures

completes when upstream completes

cancels when downstream cancels