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/**
 * Copyright 2014 Netflix, Inc.
 *
 * 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 rx.internal.util;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicLongFieldUpdater;

public final class RxThreadFactory implements ThreadFactory {
    final String prefix;
    volatile long counter;
    static final AtomicLongFieldUpdater COUNTER_UPDATER
            = AtomicLongFieldUpdater.newUpdater(RxThreadFactory.class, "counter");

    public RxThreadFactory(String prefix) {
        this.prefix = prefix;
    }

    @Override
    public Thread newThread(Runnable r) {
        Thread t = new Thread(r, prefix + COUNTER_UPDATER.incrementAndGet(this));
        t.setDaemon(true);
        return t;
    }
}