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 backtype.storm.messaging;
  
  import java.util.List;
  
  import org.jboss.netty.channel.Channel;
  
  import backtype.storm.utils.DisruptorQueue;
  
  public interface IConnection {
  
      /**
       * (flags != 1) synchronously (flags==1) asynchronously
       */
      Object recv(Integer taskId, int flags);
  
      /**
       * In the new design, receive flow is through registerQueue, then push message into queue
       */
      void registerQueue(Integer taskId, DisruptorQueue recvQueu);
  
      void enqueue(TaskMessage message, Channel channel);
  
      void send(List<TaskMessage> messages);
  
      void send(TaskMessage message);
  
      void sendDirect(TaskMessage message);
  
      boolean available(int taskId);
  
      /**
       * close this connection
       */
      void close();
  
      boolean isClosed();
  }
  