Trait LbStrategy

pub trait LbStrategy: Send + Sync {
    // Required methods
    fn strategy(&self) -> Strategy;
    fn contain(&self, hash_code: u64) -> bool;
    fn add_backend(&self, addr: Address);
    fn remove_backend(&self, addr: &Address) -> bool;
    fn get_backend(&self, key: &str) -> Option<BackendState>;
    fn get_backends(&self) -> Vec<BackendState>;
    fn get_origin_backends(&self) -> Vec<BackendState>;

    // Provided methods
    fn backend<KEY: AsRef<str>>(
        this: Box<dyn LbStrategy>,
        key: KEY,
    ) -> Option<BackendState>
       where Self: Sized { ... }
    fn disable_backend(&self, addr: &Address) -> bool { ... }
    fn enable_backend(&self, addr: &Address) { ... }
}

策略trait

Required Methods

fn strategy(&self) -> Strategy

策略类型

fn contain(&self, hash_code: u64) -> bool

判断一个后端地址是否存在

fn add_backend(&self, addr: Address)

添加一个后端地址

fn remove_backend(&self, addr: &Address) -> bool

移除一个后端地址

fn get_backend(&self, key: &str) -> Option<BackendState>

获取一个后端地址

fn get_backends(&self) -> Vec<BackendState>

获取所有后端地址

fn get_origin_backends(&self) -> Vec<BackendState>

获取原始的所有后端地址

Provided Methods

fn backend<KEY: AsRef<str>>( this: Box<dyn LbStrategy>, key: KEY, ) -> Option<BackendState>

where Self: Sized,

获取一个后端地址, 通过通用key

fn disable_backend(&self, addr: &Address) -> bool

使一个后端地址无效

fn enable_backend(&self, addr: &Address)

使一个后端地址有效

Implementors

impl LbStrategy for CHStrategy

impl LbStrategy for HashStrategy

impl LbStrategy for RRStrategy