Struct ListenOptions 

pub struct ListenOptions {
    pub backlog: i32,
    pub reuse_port: bool,
    pub nodelay: bool,
    pub v6_only: Option<bool>,
    pub recv_buffer: Option<usize>,
    pub send_buffer: Option<usize>,
    pub defer_accept: Option<u32>,
}

Options for Socket::tcp_listen.

Fields

backlog: i32

Length of the kernel accept queue. The default is default_backlog: the system’s maximum (net.core.somaxconn on Linux, capped at 65535; SOMAXCONN on Windows), so a burst of connections, or 100k idle ones arriving together, isn’t dropped.

reuse_port: bool

SO_REUSEPORT (Linux, BSD): several sockets may bind the same address and the kernel spreads connections over them. Ignored on Windows.

nodelay: bool

Set TCP_NODELAY on the listener (Linux and Windows hand it down to accepted sockets).

v6_only: Option<bool>

IPV6_V6ONLY for IPv6 addresses; None leaves the OS default.

recv_buffer: Option<usize>

SO_RCVBUF, inherited by accepted sockets.

send_buffer: Option<usize>

SO_SNDBUF, inherited by accepted sockets.

defer_accept: Option<u32>

TCP_DEFER_ACCEPT (Linux) in seconds: the kernel hands over a connection only once its first data has arrived (or this long after the handshake), so accepting and reading the first request take one turn. Only for protocols where the client speaks first (HTTP, TLS). None (the default here) leaves it off; ignored on other systems.

Trait Implementations

impl Clone for ListenOptions

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ListenOptions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ListenOptions

fn default() -> Self

Returns the “default value” for a type.