/*

  * 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.giraph.utils;

 import java.io.DataInput;

 /**

  * Add some functionality to data input

  */

 public interface ExtendedDataInput extends DataInput {

   /**

    * Get the position of what has been read

    *

    * @return How many bytes have been read?

    */

   int getPos();

   /**

    * How many bytes are available?

    *

    * @return Bytes available

    */

   int available();

   /**

    * Check if we read everything from the input

    *

    * @return True iff we read everything from the input

    */

   boolean endOfInput();

 }