std::net::TcpStream::set_nodelay marked as unstable

[icorderi]

Guys, any particular reason disabling Naggles is still marked as unstable?

• set_nodelay current code.
• doc for beta4.

[alexcrichton]

Thanks for the report! The current suite of setting various options for a TcpStream and friends has not received the amount of scrutiny expected from a stable API, and requires thought to consider expansion of the API to more socket options in the future as well as how it plays into other kinds of sockets and such.

We've currently got an RFC issue open about the expansion of the std::net API surface area, and this falls under the category of "More socket options" at the bottom. I hope to write an RFC quite soon for these APIs which will then be slated to hopefully be included as #[stable] in the 1.2 release.

In the meantime, however, the AsRawFd and AsRawSocket traits are #[stable] on Rust master so you can set the options manually (albeit somewhat painfully).