Add a new KeyedLocker, StripedKeyedLocker. This new implementation simply stores a striped set of reentrant locks.

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MOS_MIGRATED_REVID=102198213

1 files changed, 26 insertions, 0 deletions

diff --git a/src/test/java/com/google/devtools/build/lib/concurrent/StripedKeyedLockerTest.java b/src/test/java/com/google/devtools/build/lib/concurrent/StripedKeyedLockerTest.java
new file mode 100644
index 0000000000..5ae0b28c3b
--- /dev/null
+++ b/src/test/java/com/google/devtools/build/lib/concurrent/StripedKeyedLockerTest.java
@@ -0,0 +1,26 @@
+// Copyright 2015 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+package com.google.devtools.build.lib.concurrent;
+
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/** Tests for {@link StripedKeyedLocker}. */
+@RunWith(JUnit4.class)
+public class StripedKeyedLockerTest extends KeyedLockerTest {
+ @Override
+ protected KeyedLocker<String> makeFreshLocker() {
+  return new StripedKeyedLocker<>(17);
+ }
+}