monitor

Materializes to a FlowMonitor that monitors messages flowing through or completion of the operators.

Watching status operators

Signature

def monitor[Mat2]()(combine: (Mat, FlowMonitor[Out]) ⇒ Mat2): ReprMat[Out, Mat2]
def monitorMat[Mat2](combine: (Mat, FlowMonitor[Out]) ⇒ Mat2): ReprMat[Out, Mat2]
def monitor: ReprMat[Out, (Mat, FlowMonitor[Out])]

Description

Materializes to a FlowMonitor that monitors messages flowing through or completion of the operators. The operators otherwise passes through elements unchanged. Note that the FlowMonitor inserts a memory barrier every time it processes an event, and may therefore affect performance.

emits when upstream emits an element

backpressures when downstream backpressures

completes when upstream completes

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