net.openhft.chronicle.hash.impl.SegmentHeader Maven / Gradle / Ivy

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/*
 * Copyright 2014 Higher Frequency Trading http://www.higherfrequencytrading.com
 *
 * 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 net.openhft.chronicle.hash.impl;

import java.util.concurrent.TimeUnit;

public interface SegmentHeader {
    long size(long address);
    void size(long address, long size);

    long deleted(long address);
    void deleted(long address, long deleted);

    long nextPosToSearchFrom(long address);
    void nextPosToSearchFrom(long address, long nextPosToSearchFrom);

    void readLock(long address);
    void readLockInterruptibly(long address);
    boolean tryReadLock(long address);
    boolean tryReadLock(long address, long time, TimeUnit unit);

    void updateLock(long address);
    void updateLockInterruptibly(long address);
    boolean tryUpdateLock(long address);
    boolean tryUpdateLock(long address, long time, TimeUnit unit);

    void writeLock(long address);
    void writeLockInterruptibly(long address);
    boolean tryWriteLock(long address);
    boolean tryWriteLock(long address, long time, TimeUnit unit);

    boolean tryUpgradeReadToUpdateLock(long address);
    boolean tryUpgradeReadToWriteLock(long address);

    void upgradeUpdateToWriteLock(long address);
    void upgradeUpdateToWriteLockInterruptibly(long address);
    boolean tryUpgradeUpdateToWriteLock(long address);
    boolean tryUpgradeUpdateToWriteLock(long address, long time, TimeUnit unit);

    void readUnlock(long address);

    void updateUnlock(long address);
    void downgradeUpdateToReadLock(long address);

    void writeUnlock(long address);
    void downgradeWriteToUpdateLock(long address);
    void downgradeWriteToReadLock(long address);
}