- Max concurrent downloads is controlled by a config in getdown.txt:
max_concurrent_downloads. It defaults to two.
- A bunch of thread-safety problems were fixed.
- While in there, I revamped the downloader to be less crufty from years of
ad-hoc requirements accretion.
- I disabled the Channel.transferFrom based download change because it prevents
fine-grained feedback (and abort checking) from taking place, and it doesn't
handle failure cases. Maybe we'll clean it up and re-enable it in the future.
Michael Bayne
e0d119d87b