content: /*
   * Copyright 2019-2023 Adaptive Financial Consulting Ltd.
   *
   * 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
   *
   * https://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 com.aeroncookbook.ipc.agents;
  
  import io.aeron.Publication;
  import org.agrona.concurrent.Agent;
  import org.agrona.concurrent.UnsafeBuffer;
  
  import java.nio.ByteBuffer;
  
  public class SendAgent implements Agent
  {
      private final Publication publication;
      private final int sendCount;
      private final UnsafeBuffer unsafeBuffer;
      private int currentCountItem = 1;
  
      public SendAgent(final Publication publication, final int sendCount)
      {
          this.publication = publication;
          this.sendCount = sendCount;
          this.unsafeBuffer = new UnsafeBuffer(ByteBuffer.allocateDirect(64));
          unsafeBuffer.putInt(0, currentCountItem);
      }
  
      @Override
      public int doWork()
      {
          if (currentCountItem > sendCount)
          {
              return 0;
          }
  
          if (publication.isConnected())
          {
              if (publication.offer(unsafeBuffer) > 0)
              {
                  currentCountItem += 1;
                  unsafeBuffer.putInt(0, currentCountItem);
              }
          }
          return 0;
      }
  
      @Override
      public String roleName()
      {
          return "sender";
      }
  }
  