1 files changed, 7 insertions, 0 deletions
diff --git a/lib/mutex.sh b/lib/mutex.sh
index 5fd6b70..00333a2 100644
--- a/lib/mutex.sh
+++ b/lib/mutex.sh
@@ -48,3 +48,10 @@ mutex_unlock()
 
 	rm "${mutex}"
 }
+
+mutex_is_unlockable()
+{
+	local mutex="${1}"
+
+	[ "x$(cat "${mutex}" 2>/dev/null)" = "x${$}" ]
+}