ENH: New design for sending filter progress messages at a reasonable rate #1292
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This is rough starting design. There are several directions that could be taken. Hierarchy based, stand alone? This is just a few ideas and a few examples of 2 of the use cases:
Single Threaded: Just send a message once a second
MultiThreaded: The individual threads send back how many items they have completed. The Filter Algorithm class determines when to send the actual message.