libcore/luni/src/main/java/org/apache/harmony/luni/platform/RuntimeMemorySpy.java

/* Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.harmony.luni.platform;

import java.lang.ref.Reference;

final class RuntimeMemorySpy extends AbstractMemorySpy {

    public RuntimeMemorySpy() {
        super();
    }

    public void alloc(PlatformAddress address) {
        // Pay a tax on the allocation to see if there are any frees pending.
        Reference ref = notifyQueue.poll(); // non-blocking check
        while (ref != null) {
            orphanedMemory(ref);
            ref = notifyQueue.poll();
        }

        super.alloc(address);
    }
}