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pub mod backoff;
#[cfg(feature = "tokio-timer")]
pub mod tokio;
mod error;
mod impls;
use std::ops::Deref;
use std::pin::Pin;
use std::time::Duration;
use crate::request::BaseRequest;
use crate::response::Response;
#[cfg(feature = "tokio-timer")]
#[doc(inline)]
pub use self::tokio::TokioTimer;
pub use self::{
backoff::{Backoff, ExponentialBackoff},
error::RetryError,
impls::{Retrial, RetrialPredicate, Retrying},
};
#[cfg(feature = "tokio-timer")]
pub type RetryingTokio<R, B = ExponentialBackoff, F = ()> = Retrying<R, TokioTimer, B, F>;
pub trait RetriableRequest: BaseRequest {
fn should_retry(&self, error: &Self::Error, next_interval: Duration) -> bool;
#[cfg(feature = "tokio-timer")]
fn retry(self) -> RetryingTokio<Self>
where
Self: Sized,
{
RetryingTokio::from_default(self)
}
#[cfg(feature = "tokio-timer")]
fn retry_with_backoff<B>(self, backoff: B) -> RetryingTokio<Self, B>
where
Self: BaseRequest + Sized,
B: Backoff,
{
RetryingTokio::new(self, Default::default(), backoff)
}
}
impl<R> RetriableRequest for &R
where
R: RetriableRequest,
{
fn should_retry(&self, error: &Self::Error, next_interval: Duration) -> bool {
(*self).should_retry(error, next_interval)
}
}
impl<R> RetriableRequest for Box<R>
where
R: RetriableRequest,
{
fn should_retry(&self, error: &Self::Error, next_interval: Duration) -> bool {
(**self).should_retry(error, next_interval)
}
}
impl<P> RetriableRequest for Pin<P>
where
P: Deref,
<P as Deref>::Target: RetriableRequest,
{
fn should_retry(&self, error: &Self::Error, next_interval: Duration) -> bool {
<<P as Deref>::Target>::should_retry(self, error, next_interval)
}
}
pub trait Timer {
type Delay: Response<Ok = (), Error = RetryError>;
fn expires_in(&mut self, interval: Duration) -> Self::Delay;
}