Feature gate: #![feature(tcp_deferaccept)]

This is a tracking issue for the tcp_deferaccept feature.

It allows for the current socket to delay the acceptance of a connection until data is available to be read

Public API

It expands the existing Linux's TcpStreamExt trait with

pub trait TcpStreamExt: Sealed{
  fn deferaccept(&self) -> io::Result<Duration>;
  fn set_deferaccept(&self, accept: Duration) -> io::Result<()>;
}

This feature directly translates to the underlying native Linux TCP_DEFER_ACCEPT tcp(7) option.

Implementation history

• os::net: expanding TcpStreamExt for Linux with tcp_deferaccept. #119636
• std::net: update tcp deferaccept delay type to Duration. #140482