/*
 *  Copyright 1999-2004 The Apache Software Foundation
 *
 *  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.
 */

package org.apache.coyote;

import java.io.IOException;

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


/**
 * Output buffer.
 *
 * This class is used internally by the protocol implementation. All writes from higher level code should happen
 * via Resonse.doWrite().
 * 
 * @author Remy Maucherat
 */
public interface OutputBuffer {


    /** Write the response. The caller ( tomcat ) owns the chunks.
     *
     * @param chunk data to write
     * @param response used to allow buffers that can be shared by multiple responses.
     * @return
     * @throws IOException
     */
    public int doWrite(ByteChunk chunk, Response response)
        throws IOException;


}
