Struct tower_load::peak_ewma::PeakEwmaDiscover

pub struct PeakEwmaDiscover<D, I = NoInstrument> { /* fields omitted */ }

Wraps a D-typed stream of discovery updates with PeakEwma.

Implementations

impl<D, I> PeakEwmaDiscover<D, I>

pub fn new<Request>(
    discover: D,
    default_rtt: Duration,
    decay: Duration,
    instrument: I
) -> Self where
    D: Discover,
    D::Service: Service<Request>,
    I: Instrument<Handle, <D::Service as Service<Request>>::Response>, 

Wraps a D-typed Discover so that services have a PeakEwma load metric.

The provided default_rtt is used as the default RTT estimate for newly added services.

They decay value determines over what time period a RTT estimate should decay.

Trait Implementations

impl<D: Debug, I: Debug> Debug for PeakEwmaDiscover<D, I>

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

Formats the value using the given formatter.

impl<D, I> Discover for PeakEwmaDiscover<D, I> where
    D: Discover,
    I: Clone, 

type Key = D::Key

NewService key

type Service = PeakEwma<D::Service, I>

The type of Service yielded by this Discover.

type Error = D::Error

Error produced during discovery

fn poll_discover(
    self: Pin<&mut Self>,
    cx: &mut Context<'_>
) -> Poll<Result<Change<D::Key, Self::Service>, D::Error>>

Yields the next discovery change set.

impl<D, I> PinnedDrop for PeakEwmaDiscover<D, I>

unsafe fn drop(self: Pin<&mut Self>)

impl<'pin, D, I> Unpin for PeakEwmaDiscover<D, I> where
    __PeakEwmaDiscover<'pin, D, I>: Unpin, 

impl<D, I> UnsafeUnpin for PeakEwmaDiscover<D, I>