Long polling -- force buffer flush?

[ckcollab]

Hey there, first of all: thanks for waitress!

I have been going through the docs trying to solve a problem when doing long polling: my buffers don't seem to flush until I respond with > 50kb of data. I found the send_bytes option but I don't want every response to not buffer. Is there a "right way" to prune (like this PR #113 ) after I yield something to a streaming response? I also found this issue #49 discussing the issue, but again I don't think send_bytes is what I want?

Or is send_bytes=1 not that big a deal?

[digitalresistor]

It sounds like you would want to use send_bytes=1.

[digitalresistor]

Notes for later:

https://github.com/Pylons/waitress/blob/master/waitress/channel.py#L255

Leads to terrible performance as we have to loop much more than necessary. Let's use getsockopt for SO_SNDBUF to figure out how much data we can stuff into send in one go without it blocking.