[pquerna]

1) You return SUSPENDED instead of OK from your handler. See also http://svn.apache.org/viewvc?view=revision&revision=1593860

2) You can control all response filters at the byte level with an Output Filter.

3) Hooks already exist for this: https://ci.apache.org/projects/httpd/trunk/doxygen/group__ho...

4) No. Bucket Brigades is the API for this. It's an efficient linked-list of future-data. It's a good API IMO, just needs some understanding, and because its in C, its full of macros (there are more alternatives to making it cleaner if we weren't using C)

[secondcoming]

1) potential gamechanger. Thanks for pointing it out

2) yes, but there's a config directive for the Server header too that could just allow people to turn it off

3) for child_init, but nothing obvious that maps to a worker_thread_init

Are there plans for httpd to avail of io_uring if the kernel provides it?

I will admit, I've struggled with configuring httpd for years. A single threaded redis server can handle more connections than a full httpd install.