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Avoid panic on dropping a sc_network::service::out_events::Receiver. (#6458)

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* Avoid panic on dropping a `Receiver`.

* CI
This commit is contained in:
Roman Borschel
2020-06-23 10:51:35 +02:00
committed by GitHub
parent d9776d8233
commit 6aa8965f33
1 changed files with 5 additions and 3 deletions
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substrate/client/network/src/service/out_events.rs
+5 -3
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@@ -35,7 +35,7 @@
use crate::Event;
use super::maybe_utf8_bytes_to_string;
use futures::{prelude::*, channel::mpsc, ready};
use futures::{prelude::*, channel::mpsc, ready, stream::FusedStream};
use parking_lot::Mutex;
use prometheus_endpoint::{register, CounterVec, GaugeVec, Opts, PrometheusError, Registry, U64};
use std::{
@@ -119,8 +119,10 @@ impl fmt::Debug for Receiver {
impl Drop for Receiver {
fn drop(&mut self) {
// Empty the list to properly decrease the metrics.
while let Some(Some(_)) = self.next().now_or_never() {}
if !self.inner.is_terminated() {
// Empty the list to properly decrease the metrics.
while let Some(Some(_)) = self.next().now_or_never() {}
}
}
}