Struct SocketOptions 

pub struct SocketOptions<'a> { /* private fields */ }

Live get and set on an open socket.

use net_io::{Keepalive, Linger};
let conn = net_io::connect("127.0.0.1:7000")?;
conn.options().set_keepalive(Some(Keepalive::DEFAULT))?;
conn.options().set_linger(Linger::Abortive)?;
let effective = conn.options().set_receive_buffer(256 * 1024)?;
println!("receive buffer is {effective} bytes");

Implementations

impl SocketOptions<'_>

pub fn nodelay(&self) -> Result<bool, NetError>

TCP_NODELAY.

Errors

Os when the OS call fails.

pub fn set_nodelay(&self, on: bool) -> Result<(), NetError>

Sets TCP_NODELAY.

Errors

Os when the OS call fails.

pub fn keepalive(&self) -> Result<Option<Keepalive>, NetError>

Keepalive probes (None = off).

Errors

Os when the OS call fails.

pub fn set_keepalive(&self, k: Option<Keepalive>) -> Result<(), NetError>

Sets keepalive probes (None = off).

Errors

InvalidConfig for a zero value or a count above 255 on Windows; Os.

pub fn linger(&self) -> Result<Linger, NetError>

Linger at close.

Errors

Os when the OS call fails.

pub fn set_linger(&self, l: Linger) -> Result<(), NetError>

Sets linger at close.

Errors

Os when the OS call fails.

pub fn send_buffer(&self) -> Result<u32, NetError>

The effective SO_SNDBUF.

Errors

Os when the OS call fails.

pub fn set_send_buffer(&self, bytes: u32) -> Result<u32, NetError>

Sets SO_SNDBUF and returns the effective value (Linux doubles it).

Errors

Os when the OS call fails.

pub fn receive_buffer(&self) -> Result<u32, NetError>

The effective SO_RCVBUF.

Errors

Os when the OS call fails.

pub fn set_receive_buffer(&self, bytes: u32) -> Result<u32, NetError>

Sets SO_RCVBUF and returns the effective value (Linux doubles it).

Errors

Os when the OS call fails.

pub fn ttl(&self) -> Result<u8, NetError>

The hop limit.

Errors

Os when the OS call fails.

pub fn set_ttl(&self, hops: u8) -> Result<(), NetError>

Sets the hop limit.

Errors

Os when the OS call fails.

Trait Implementations

impl<'a> Debug for SocketOptions<'a>

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

Formats the value using the given formatter.