nix

Macro setsockopt_impl

Source 
macro_rules! setsockopt_impl {
    ($name:ident, $level:expr, $flag:path, $ty:ty, $setter:ty) => { ... };
}
Available on crate feature socket only.
Expand description

Helper for implementing SetSockOpt for a given socket option. See ::sys::socket::SetSockOpt.

This macro aims to help implementing SetSockOpt for different socket options that accept different kinds of data to be used with setsockopt.

Instead of using this macro directly consider using sockopt_impl!, especially if the option you are implementing represents a simple type.

ยงArguments

  • $name:ident: name of the type you want to implement SetSockOpt for.
  • $level:expr : socket layer, or a protocol level: could be raw sockets (libc::SOL_SOCKET), ip protocol (libc::IPPROTO_IP), tcp protocol (libc::IPPROTO_TCP), and more. Please refer to your system manual for more options. Will be passed as the second argument (level) to the setsockopt call.
  • $flag:path: a flag name to set. Some examples: libc::SO_REUSEADDR, libc::TCP_NODELAY, libc::IP_ADD_MEMBERSHIP and others. Will be passed as the third argument (option_name) to the setsockopt call.
  • Type of the value that you are going to set.
  • Type that implements the Set trait for the type from the previous item (like SetBool for bool, SetUsize for usize, etc.).