Receives a timeout and returns the worker's startup flag, or None if it does not answer in time.

Yield every complete event currently available.

Deliver the pending client frames to the server as a single read.

Receives a timeout and returns True if the worker answers and its server has finished startup.

Import the app and return it. Exits on failure.

Receives a timeout and returns True if the worker starts serving, or False on exit, shutdown, or timeout.

Install a SIGQUIT handler on workers. - https://github.com/Kludex/uvicorn/issues/1116 - https://github.com/benoitc/gunicorn/issues/26

Parse a forwarded host value into host and optional port. Accepts bare IPs, IPv4 `host:port`, and bracketed IPv6 `[host]:port`. Any unrecogni

Find an unused localhost port from 1024-65535 and return it.

Reset only this stream so sibling streams on the connection survive.

Builds a scope and request message into a WSGI environ object.

Get the default asyncio loop per OS.

Extract the client address from x_forwarded_for header. In general this is the first "untrusted" host in the forwarded for list.