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 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2020 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
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 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
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package io.questdb.network;

public class EpollAccessor {
    public static final short SIZEOF_EVENT;
    public static final int EPOLLIN;
    public static final int EPOLLOUT;
    public static final int EPOLL_CTL_ADD;
    public static final int EPOLL_CTL_MOD;
    public static final int EPOLL_CTL_DEL;
    static final short DATA_OFFSET;
    static final short EVENTS_OFFSET;
    static final int EPOLLONESHOT;
    static final int EPOLLET;

    static {
        DATA_OFFSET = getDataOffset();
        EVENTS_OFFSET = getEventsOffset();
        SIZEOF_EVENT = getEventSize();
        EPOLLIN = getEPOLLIN();
        EPOLLET = getEPOLLET();
        EPOLLOUT = getEPOLLOUT();
        EPOLLONESHOT = getEPOLLONESHOT();
        EPOLL_CTL_ADD = getCtlAdd();
        EPOLL_CTL_MOD = getCtlMod();
        EPOLL_CTL_DEL = getCtlDel();
    }

    static native long epollCreate();

    static native int epollCtl(long epfd, int op, long fd, long eventPtr);

    static native int epollWait(long epfd, long eventPtr, int eventCount, int timeout);

    static native short getDataOffset();

    static native short getEventsOffset();

    static native short getEventSize();

    static native int getEPOLLIN();

    static native int getEPOLLET();

    static native int getEPOLLOUT();

    static native int getEPOLLONESHOT();

    static native int getCtlAdd();

    static native int getCtlMod();

    static native int getCtlDel();
}