content: /*
   * 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.kafka.common.network;
  
  import java.io.IOException;
  
  /**
   * This interface models the in-progress sending of data.
   */
  public interface Send {
  
      /**
       * Is this send complete?
       */
      boolean completed();
  
      /**
       * Write some as-yet unwritten bytes from this send to the provided channel. It may take multiple calls for the send
       * to be completely written
       * @param channel The Channel to write to
       * @return The number of bytes written
       * @throws IOException If the write fails
       */
      long writeTo(TransferableChannel channel) throws IOException;
  
      /**
       * Size of the send
       */
      long size();
  
  }
  