From 272b30e5460adc2fcadaab49fc187e9e14bbe89a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Przemys=C5=82aw=20Grzywacz?=
 <przemyslaw.grzywacz@golem.network>
Date: Wed, 13 Mar 2024 10:47:25 +0100
Subject: [PATCH] feat: critical error event in task executor

---
 src/events.ts   | 5 +++++
 src/executor.ts | 1 +
 2 files changed, 6 insertions(+)

diff --git a/src/events.ts b/src/events.ts
index d767efa..78bfea9 100644
--- a/src/events.ts
+++ b/src/events.ts
@@ -20,6 +20,11 @@ export interface TaskExecutorEventsDict {
    */
   beforeEnd: (timestamp: number) => void;
 
+  /**
+   * Fires when task executor encountered an unrecoverable error and is about to shut down.
+   */
+  criticalError: (err: Error) => void;
+
   /**
    * Fires when task executor is completely terminated.
    */
diff --git a/src/executor.ts b/src/executor.ts
index cb5e09c..8407fd4 100644
--- a/src/executor.ts
+++ b/src/executor.ts
@@ -472,6 +472,7 @@ export class TaskExecutor {
   }
 
   private handleCriticalError(err: Error) {
+    this.events.emit("criticalError", err);
     const message =
       "TaskExecutor faced a critical error and will now cancel work, terminate agreements and request settling payments";
     this.logger.error(message, err);