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Introduce RateUpdate type alias to reduce duplication

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Thomas Eizinger 2021-03-09 11:03:24 +11:00
parent fd5b38739a
commit c560b3b21a
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1 changed files with 5 additions and 3 deletions
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8
swap/src/kraken.rs
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@ -8,6 +8,8 @@ use std::convert::TryFrom;
use tokio::sync::watch; use tokio::sync::watch;
use tokio_tungstenite::tungstenite; use tokio_tungstenite::tungstenite;
type RateUpdate = Result<Rate, Error>;
pub async fn connect() -> Result<RateUpdateStream> { pub async fn connect() -> Result<RateUpdateStream> {
let (rate_update, rate_update_receiver) = watch::channel(Err(Error::NotYetRetrieved)); let (rate_update, rate_update_receiver) = watch::channel(Err(Error::NotYetRetrieved));
@ -95,17 +97,17 @@ pub async fn connect() -> Result<RateUpdateStream> {
#[derive(Clone, Debug)] #[derive(Clone, Debug)]
pub struct RateUpdateStream { pub struct RateUpdateStream {
inner: watch::Receiver<Result<Rate, Error>>, inner: watch::Receiver<RateUpdate>,
} }
impl RateUpdateStream { impl RateUpdateStream {
pub async fn wait_for_update(&mut self) -> Result<Result<Rate, Error>> { pub async fn wait_for_update(&mut self) -> Result<RateUpdate> {
self.inner.changed().await?; self.inner.changed().await?;
Ok(self.inner.borrow().clone()) Ok(self.inner.borrow().clone())
} }
pub fn latest_update(&mut self) -> Result<Rate, Error> { pub fn latest_update(&mut self) -> RateUpdate {
self.inner.borrow().clone() self.inner.borrow().clone()
} }
} }