Update from Google.

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MOE_MIGRATED_REVID=85702957

1 files changed, 31 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/shell/Killable.java b/src/main/java/com/google/devtools/build/lib/shell/Killable.java
new file mode 100644
index 0000000000..66d1146b2c
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/shell/Killable.java
@@ -0,0 +1,31 @@
+// Copyright 2014 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.shell;
+
+/**
+ * Implementations encapsulate a running process that can be killed.
+ * In particular, here, it is used to wrap up a {@link Process} object
+ * and expose it to a {@link KillableObserver}. It is wrapped in this way
+ * so that the actual {@link Process} object can't be altered by
+ * a {@link KillableObserver}.
+ */
+public interface Killable {
+
+  /**
+   * Kill this killable instance.
+   */
+  void kill();
+
+}