Pass ownership for tcp_inbound over ringbuffer
#6826
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Experiment in reducing copies. Rather than copying data to the ringbuffer, where the receiver must copy the contents out if they want to defer processing, pass the owning pointer (allocated in a libuv
on_alloc) callback over the ringbuffer and let the enclave pass that around and free it when done.Slightly awkward raw-pointer handling, and needs to be free'd in multiple places, but looks like a significant perf bump?