From 11a8aa922e50f9f2d5d64999cf931c76b8418e69 Mon Sep 17 00:00:00 2001
From: Alexander Berl <a.berl@outlook.com>
Date: Fri, 28 May 2021 16:57:24 +0200
Subject: [PATCH] feat: add callback option when stale lock is reclaimed

Closes #105
---
 lib/lockfile.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/lockfile.js b/lib/lockfile.js
index 97b6637..ba931c4 100644
--- a/lib/lockfile.js
+++ b/lib/lockfile.js
@@ -75,7 +75,13 @@ function acquireLock(file, options, callback) {
                     return callback(err);
                 }
 
-                acquireLock(file, { ...options, stale: 0 }, callback);
+                acquireLock(file, { ...options, stale: 0 }, (err) => {
+                    if (!err) {
+                        // Only notify when the lock was actually acquired to make sure only one process can reclaim
+                        options.onReclaimedStale && options.onReclaimedStale();
+                    }
+                    callback(err);
+                });
             });
         });
     });