diff --git a/platform/util/src/com/intellij/util/concurrency/LockToken.java b/platform/util/src/com/intellij/util/concurrency/LockToken.java new file mode 100644 index 000000000000..4080aadda088 --- /dev/null +++ b/platform/util/src/com/intellij/util/concurrency/LockToken.java @@ -0,0 +1,44 @@ +/* + * Copyright 2000-2016 JetBrains s.r.o. + * + * 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.intellij.util.concurrency; + +import com.intellij.openapi.application.AccessToken; +import org.jetbrains.annotations.NotNull; + +import java.util.concurrent.locks.Lock; + +/** + * Intended to use within try-with-resources. + */ +public class LockToken extends AccessToken { + + private final Lock myLock; + + private LockToken(Lock lock) { + myLock = lock; + } + + @Override + public void finish() { + myLock.unlock(); + } + + @NotNull + public static LockToken acquireLock(@NotNull Lock lock) { + lock.lock(); + return new LockToken(lock); + } +}