Struct Backend

pub struct Backend {
    pub addr: SocketAddr,
    pub weight: usize,
    pub ext: Extensions,
}

Backend represents a server to proxy or connect to.

Fields

addr: SocketAddr

The address to the backend server.

weight: usize

The relative weight of the server. Load balancing algorithms will proportionally distributed traffic according to this value.

ext: Extensions

The extension field to put arbitrary data to annotate the Backend. The data added here is opaque to this crate hence the data is ignored by functionalities of this crate. For example, two backends with the same SocketAddr and the same weight but different ext data are considered identical. See Extensions for how to add and read the data.

Implementations

impl Backend

pub fn new(addr: &str) -> Result<Self>

Create a new Backend with weight 1. The function will try to parse addr into a std::net::SocketAddr.

pub fn new_with_weight(addr: &str, weight: usize) -> Result<Self>

Creates a new Backend with the specified weight. The function will try to parse addr into a std::net::SocketAddr.

Methods from Deref<Target = SocketAddr>

pub fn as_inet(&self) -> Option<&SocketAddr>

Get a reference to the IP socket if it is one

pub fn as_unix(&self) -> Option<&SocketAddr>

Get a reference to the Unix domain socket if it is one

pub fn set_port(&mut self, port: u16)

Set the port if the address is an IP socket.

Trait Implementations

impl Clone for Backend

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Backend

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

Formats the value using the given formatter.

impl Deref for Backend

type Target = SocketAddr

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for Backend

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl Hash for Backend

fn hash<__H>(&self, __state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Backend

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Backend

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Backend

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl ToSocketAddrs for Backend

type Iter = Once<SocketAddr>

Returned iterator over socket addresses which this type may correspond to.

fn to_socket_addrs(&self) -> Result<Self::Iter>

Converts this object to an iterator of resolved SocketAddrs.

impl Eq for Backend