io.questdb.cairo.vm.api.MemoryMA Maven / Gradle / Ivy

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 *
 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2023 QuestDB
 *
 *  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.
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package io.questdb.cairo.vm.api;

import io.questdb.cairo.vm.Vm;
import io.questdb.std.FilesFacade;
import io.questdb.std.str.LPSZ;

//mapped appendable 
public interface MemoryMA extends MemoryM, MemoryA {

    default void close(boolean truncate) {
        close(truncate, Vm.TRUNCATE_TO_PAGE);
    }

    void close(boolean truncate, byte truncateMode);

    long getAppendAddress();

    long getAppendAddressSize();

    void of(FilesFacade ff, LPSZ name, long extendSegmentSize, int memoryTag, long opts);

    default void setSize(long size) {
        jumpTo(size);
    }

    void switchTo(int fd, long offset, byte truncateMode);

    void sync(boolean async);

    default void toTop() {
        jumpTo(0);
    }
}