Add locking API

1 files changed, 23 insertions, 0 deletions

diff --git a/vespajlib/src/main/java/com/yahoo/concurrent/Lock.java b/vespajlib/src/main/java/com/yahoo/concurrent/Lock.java
new file mode 100644
index 00000000000..39ccab7034e
--- /dev/null
+++ b/vespajlib/src/main/java/com/yahoo/concurrent/Lock.java
@@ -0,0 +1,23 @@
+package com.yahoo.vespa.hosted.controller.concurrent;
+
+import java.util.concurrent.locks.ReentrantLock;
+
+/** 
+ * An acquired lock which is released on close
+ * 
+ * @author bratseth
+ */
+public final class Lock implements AutoCloseable {
+
+    private final ReentrantLock wrappedLock;
+
+    Lock(ReentrantLock wrappedLock) {
+        this.wrappedLock = wrappedLock;
+    }
+
+    /** Releases this lock */
+    public void close() {
+        wrappedLock.unlock();
+    }
+
+}