Suggested by clippy:
warning: use of `ok_or` followed by a function call
--> src/handshake/server.rs:20:19
|
20 | let key = self.headers.find_first("Sec-WebSocket-Key")
| ___________________^ starting here...
21 | | .ok_or(Error::Protocol("Missing Sec-WebSocket-Key".into()))?;
| |_______________________________________________________________________^ ...ending here
|
= note: #[warn(or_fun_call)] on by default
help: try this
| let key = self.headers.find_first("Sec-WebSocket-Key").ok_or_else(|| Error::Protocol("Missing Sec-WebSocket-Key".into()))?;
= help: for further information visit https://github.com/Manishearth/rust-clippy/wiki#or_fun_call
This is using some unsafe code and assumptions about alignment to speed
up apply_mask() more.
In profiles, this optimization reduces it from ~55% of the total runtime
to ~7%.
This function is the most speed-critical in the library. In profiles,
this optimization reduces it from ~75% of the profile to ~55%.
I have tried several approaches, but didn't manage to improve on this
one (LLVM already unrolls the loop here). Though I'm sure it is possible.
Ran Benita