Struct KeepAliveService 

pub struct KeepAliveService<F, E>
where
    F: Fn() -> E,
{ /* private fields */ }

A service that fails readiness once it has been idle too long.

See KeepAlive for details.

Implementations

impl<F, E> KeepAliveService<F, E>

where F: Fn() -> E,

pub fn new(dur: Millis, f: F) -> KeepAliveService<F, E>

Creates a keep-alive service with the maximum idle time dur.

f creates the error returned once the service has been idle longer than dur.

Trait Implementations

impl<F, E> Debug for KeepAliveService<F, E>

where F: Fn() -> E,

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

Formats the value using the given formatter.

impl<F, E, St, Req> Service<St, Req> for KeepAliveService<F, E>

where F: Fn() -> E,

type Res = Req

Response produced by the service.

type Error = E

Error produced while checking readiness or processing a request.

async fn ready( &self, ctx: Ctx<'_, KeepAliveService<F, E>, St>, ) -> Result<(), <KeepAliveService<F, E> as Service<St, Req>>::Error>

Waits until the service is ready to process a request.

async fn call( &self, req: Req, _: Ctx<'_, KeepAliveService<F, E>, St>, ) -> Result<Req, E>

Processes a request and asynchronously returns the response.

async fn shutdown(&self, ctx: Ctx<'_, Self, St>)

Shuts down the service.

fn map<F, Res>(self, f: F) -> ServiceChain<Map<F, Self, Res>, St, Req>

where Self: Sized, F: Fn(Self::Res) -> Res,

Maps this service’s output to a different type, returning a new service.

fn map_err<F, E>(self, f: F) -> ServiceChain<MapErr<F, Self, E>, St, Req>

where Self: Sized, F: Fn(Self::Error) -> E,

Maps this service’s error to a different type, returning a new service.

fn and_then<Next, F>(self, f: F) -> ServiceChain<AndThen<Self, Next>, St, Req>

where Self: Sized, Next: Service<St, Self::Res, Error = Self::Error>, F: IntoService<Next, St, Self::Res>,

Calls another service after this service completes successfully.

fn pipeline(self, st: St) -> Pipeline<Req, Self::Res, Self::Error>

where Self: Sized + 'static, St: 'static, Req: 'static,

Wraps this service and its state in a Pipeline.