amikhalev/sprinklers_rs
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Don't panic if events are lagged
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This commit is contained in:
Alex Mikhalev 2020-09-27 22:04:37 -06:00
parent 244eea66eb
commit cf9a7a02ef
1 changed files with 7 additions and 3 deletions
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10
src/update_listener.rs
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@ -7,7 +7,7 @@ use tokio::{
sync::{broadcast, oneshot}, sync::{broadcast, oneshot},
task::JoinHandle, task::JoinHandle,
}; };
use tracing::{trace, trace_span}; use tracing::{trace, trace_span, warn};
use tracing_futures::Instrument; use tracing_futures::Instrument;
struct UpdateListenerTask { struct UpdateListenerTask {
@ -21,13 +21,17 @@ impl UpdateListenerTask {
event: Result<SectionEvent, broadcast::RecvError>, event: Result<SectionEvent, broadcast::RecvError>,
) -> eyre::Result<()> { ) -> eyre::Result<()> {
let event = match event { let event = match event {
Ok(ev) => ev,
Err(broadcast::RecvError::Closed) => { Err(broadcast::RecvError::Closed) => {
trace!("section events channel closed"); trace!("section events channel closed");
self.running = false; self.running = false;
return Ok(()); return Ok(());
} }
e => e, Err(broadcast::RecvError::Lagged(n)) => {
}?; warn!("section events lagged by {}", n);
return Ok(());
}
};
if let Some((sec_id, state)) = match event { if let Some((sec_id, state)) = match event {
SectionEvent::RunStart(_, sec) | SectionEvent::RunUnpause(_, sec) => { SectionEvent::RunStart(_, sec) | SectionEvent::RunUnpause(_, sec) => {
Some((sec.id, true)) Some((sec.id, true))