Fix rare panic in TUI (#3294)

2020-04-15 16:19:11 +02:00
parent e76dda6676
commit cf128eb220
1 changed files with 1 additions and 1 deletions
@@ -69,7 +69,7 @@ impl TUIStatusView {
 					format!("Sync step 2/7: Downloading {}(MB) chain state for state sync: {}% at {:.1?}(kB/s)",
 							total_size / 1_000_000,
 							percent,
-							if dur_ms > 1.0f64 { (downloaded_size - prev_downloaded_size) as f64 / dur_ms as f64 } else { 0f64 },
+							if dur_ms > 1.0f64 { downloaded_size.saturating_sub(prev_downloaded_size) as f64 / dur_ms as f64 } else { 0f64 },
 					)
 				} else {
 					let start = start_time.timestamp_millis();