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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.coyote;

import java.io.IOException;

import org.apache.tomcat.util.buf.ByteChunk;


/**
 * Input buffer.
 *
 * This class is used only in the protocol implementation. All reading from
 * Tomcat ( or adapter ) should be done using Request.doRead().
 *
 * 
 * @author Remy Maucherat
 */
public interface InputBuffer {


    /** Return from the input stream.
        IMPORTANT: the current model assumes that the protocol will 'own' the
        buffer and return a pointer to it in ByteChunk ( i.e. the param will
        have chunk.getBytes()==null before call, and the result after the call ).
    */
    public int doRead(ByteChunk chunk, Request request) 
        throws IOException;


}