Hello,

I need a way to toggle a flow on/off (i.e. pause a flow).  I created this 
simple thing in the DLS:

  val throttle = Flow[Int].map(i => {while(!toggle) Thread.sleep(100); i}) 


This works as I need it when I use it in a FlowGraph, but I hate the sleep. 
 Before I go off the tracks with some Promise-based thing, is there a 
better way to accomplish what I'm trying to do?


Greg

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