I'm playing with asynchronous handlers in HttpCore 5, and I'd like to have an AsyncEntityProducer write data at its own (slow) rate like in this old thread <https://marc.info/?l=httpclient-commons-dev&m=134928851229305&w=2>. Writing to the DataStreamChannel whenever I want - outside the scope of a produce() method call - works fine, but I notice that produce() is being called every 5-6 milliseconds which ideally I would like to eliminate or reduce.
The answer in the old thread was to use IOControl.suspendOutput() and IOControl.requestOutput(), but this class appears no longer to be in HttpCore 5. I see that there is a DataStreamChannel.requestOutput() but I haven't figured out what suspension call that should be paired with. I have tried simply returning 0 from my AsyncEntityProducer.available() override, but that doesn't seem to be it. Is there a new way to suspend/resume output in HttpCore 5? Thanks! Roy Kotlin source here <https://gist.github.com/rhashimoto/1f5501d3b5d2aa95251fe12f4f0be250>.