From e3437d8889fce16f3e2937ed402b3990a402b06f Mon Sep 17 00:00:00 2001
From: Francisco Salgueiro <fgcdbs@gmail.com>
Date: Sun, 15 Oct 2023 16:44:58 +0100
Subject: [PATCH] restart engine on error

---
 src-tauri/src/chess.rs | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/src-tauri/src/chess.rs b/src-tauri/src/chess.rs
index d187fd9b..9a2657ca 100644
--- a/src-tauri/src/chess.rs
+++ b/src-tauri/src/chess.rs
@@ -308,12 +308,16 @@ pub async fn get_best_moves(
     let key = (tab.clone(), engine.clone());
 
     if state.engine_processes.contains_key(&key) {
-        let process = state.engine_processes.get_mut(&key).unwrap();
-        let mut process = process.lock().await;
-        process.stop().await?;
-        process.set_options(options.clone()).await?;
-        process.go(&go_mode).await?;
-        return Ok(());
+        {
+            let process = state.engine_processes.get_mut(&key).unwrap();
+            let mut process = process.lock().await;
+            if process.stop().await.is_ok() {
+                process.set_options(options.clone()).await?;
+                process.go(&go_mode).await?;
+                return Ok(());
+            }
+        }
+        state.engine_processes.remove(&key).unwrap();
     }
 
     let (mut process, mut reader) = EngineProcess::new(path)?;