From b731e2f1dd0972409b136aebc7b463dd72c9cfad Mon Sep 17 00:00:00 2001 From: CNlucius Date: Tue, 13 Sep 2016 11:40:12 +0800 Subject: ONOSFW-171 O/S-SFC-ONOS scenario documentation Change-Id: I51ae1cf736ea24ab6680f8edca1b2bf5dd598365 Signed-off-by: CNlucius --- .../main/java/org/onlab/util/BlockingBoolean.java | 97 ---------------------- 1 file changed, 97 deletions(-) delete mode 100644 framework/src/onos/utils/misc/src/main/java/org/onlab/util/BlockingBoolean.java (limited to 'framework/src/onos/utils/misc/src/main/java/org/onlab/util/BlockingBoolean.java') diff --git a/framework/src/onos/utils/misc/src/main/java/org/onlab/util/BlockingBoolean.java b/framework/src/onos/utils/misc/src/main/java/org/onlab/util/BlockingBoolean.java deleted file mode 100644 index f3049c31..00000000 --- a/framework/src/onos/utils/misc/src/main/java/org/onlab/util/BlockingBoolean.java +++ /dev/null @@ -1,97 +0,0 @@ -/* - * Copyright 2015 Open Networking Laboratory - * - * 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 org.onlab.util; - -import java.util.concurrent.TimeUnit; -import java.util.concurrent.locks.AbstractQueuedSynchronizer; - -/** - * Mutable boolean that allows threads to wait for a specified value. - */ -public class BlockingBoolean extends AbstractQueuedSynchronizer { - - private static final int TRUE = 1; - private static final int FALSE = 0; - - /** - * Creates a new blocking boolean with the specified value. - * - * @param value the starting value - */ - public BlockingBoolean(boolean value) { - setState(value ? TRUE : FALSE); - } - - /** - * Causes the current thread to wait until the boolean equals the specified - * value unless the thread is {@linkplain Thread#interrupt interrupted}. - * - * @param value specified value - * @throws InterruptedException if interrupted while waiting - */ - public void await(boolean value) throws InterruptedException { - acquireSharedInterruptibly(value ? TRUE : FALSE); - } - - /** - * Causes the current thread to wait until the boolean equals the specified - * value unless the thread is {@linkplain Thread#interrupt interrupted}, - * or the specified waiting time elapses. - * - * @param value specified value - * @param timeout the maximum time to wait - * @param unit the time unit of the {@code timeout} argument - * @return {@code true} if the count reached zero and {@code false} - * if the waiting time elapsed before the count reached zero - * @throws InterruptedException if interrupted while waiting - */ - public boolean await(boolean value, long timeout, TimeUnit unit) - throws InterruptedException { - return tryAcquireSharedNanos(value ? TRUE : FALSE, unit.toNanos(timeout)); - } - - protected int tryAcquireShared(int acquires) { - return (getState() == acquires) ? 1 : -1; - } - - /** - * Sets the value of the blocking boolean. - * - * @param value new value - */ - public void set(boolean value) { - releaseShared(value ? TRUE : FALSE); - } - - /** - * Gets the value of the blocking boolean. - * - * @return current value - */ - public boolean get() { - return getState() == TRUE; - } - - protected boolean tryReleaseShared(int releases) { - // Signal on state change only - int state = getState(); - if (state == releases) { - return false; - } - return compareAndSetState(state, releases); - } - -} -- cgit 1.2.3-korg