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QuestDB is High Performance Time Series Database

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/*******************************************************************************
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 *   / _ \ _   _  ___  ___| |_|  _ \| __ )
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 *
 * Copyright (C) 2014-2019 Appsicle
 *
 * This program is free software: you can redistribute it and/or  modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 *
 ******************************************************************************/

package com.questdb.std;

public interface BinarySequence {

    byte byteAt(long index);

    /**
     * Copies bytes from this binary sequence to buffer.
     *
     * @param address target buffer address
     * @param start   offset in binary sequence to start copying from
     * @param length  number of bytes to copy
     */
    default void copyTo(long address, long start, long length) {
        final long n = Math.min(length() - start, length);
        for (long l = 0; l < n; l++) {
            Unsafe.getUnsafe().putByte(address + l, byteAt(start + l));
        }
    }

    long length();
}