https://tomcat.apache.org/: Tomcat Connectors and HTTP parser 
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 *  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.tomcat.util.net;

public abstract class SendfileDataBase {

    
Is the current request being processed on a keep-alive connection? This
determines if the socket is closed once the send file completes or if
processing continues with the next request on the connection or waiting
for that next request to arrive.

/**
     * Is the current request being processed on a keep-alive connection? This
     * determines if the socket is closed once the send file completes or if
     * processing continues with the next request on the connection or waiting
     * for that next request to arrive.
     */
    public SendfileKeepAliveState keepAliveState = SendfileKeepAliveState.NONE;

    
The full path to the file that contains the data to be written to the
socket.

/**
     * The full path to the file that contains the data to be written to the
     * socket.
     */
    public final String fileName;

    
The position of the next byte in the file to be written to the socket.
This is initialised to the start point and then updated as the file is
written.

/**
     * The position of the next byte in the file to be written to the socket.
     * This is initialised to the start point and then updated as the file is
     * written.
     */
    public long pos;

    
The number of bytes remaining to be written from the file (from the current pos. This is initialised to the end point - the start point and then updated as the file is written. 
/**
     * The number of bytes remaining to be written from the file (from the
     * current {@link #pos}. This is initialised to the end point - the start
     * point and then updated as the file is written.
     */
    public long length;

    public SendfileDataBase(String filename, long pos, long length) {
        this.fileName = filename;
        this.pos = pos;
        this.length = length;
    }
}